UCC27527DSDR
更新时间：2024-12-05 05:36:02
品牌：TI
描述：具有 5V UVLO、使能功能和双 CMOS 输入的 5A/5A 双通道栅极驱动器 | DSD | 8 | -40 to 140
概述
规格参数
数据手册
替代型号UCC27527DSDR 概述
具有 5V UVLO、使能功能和双 CMOS 输入的 5A/5A 双通道栅极驱动器 | DSD | 8 | -40 to 140 FET驱动器 MOSFET 驱动器
UCC27527DSDR 规格参数
| 是否无铅： | 不含铅 | 是否Rohs认证： | 符合 |
| 生命周期： | Active | 包装说明： | HVSON, SOLCC8,.12,25 |
| Reach Compliance Code： | compliant | ECCN代码： | EAR99 |
| HTS代码： | 8542.39.00.01 | Factory Lead Time： | 6 weeks |
| 风险等级： | 1.23 | 接口集成电路类型： | BUFFER OR INVERTER BASED MOSFET DRIVER |
| JESD-30 代码： | S-PDSO-N8 | JESD-609代码： | e4 |
| 长度： | 3 mm | 湿度敏感等级： | 2 |
| 端子数量： | 8 | 最高工作温度： | 140 °C |
| 最低工作温度： | -40 °C | 最大输出电流： | 5 A |
| 标称输出峰值电流： | 5 A | 封装主体材料： | PLASTIC/EPOXY |
| 封装代码： | HVSON | 封装等效代码： | SOLCC8,.12,25 |
| 封装形状： | SQUARE | 封装形式： | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| 峰值回流温度（摄氏度）： | 260 | 电源： | 12 V |
| 认证状态： | Not Qualified | 座面最大高度： | 0.8 mm |
| 子类别： | MOSFET Drivers | 标称供电电压： | 12 V |
| 表面贴装： | YES | 温度等级： | AUTOMOTIVE |
| 端子面层： | Nickel/Palladium/Gold (Ni/Pd/Au) | 端子形式： | NO LEAD |
| 端子节距： | 0.635 mm | 端子位置： | DUAL |
| 处于峰值回流温度下的最长时间： | NOT SPECIFIED | 宽度： | 3 mm |
| Base Number Matches： | 1 |
UCC27527DSDR 数据手册
通过下载UCC27527DSDR数据手册来全面了解它。这个PDF文档包含了所有必要的细节，如产品概述、功能特性、引脚定义、引脚排列图等信息。
PDF下载UCC27527
UCC27528
www.ti.com
SLUSBD0B –DECEMBER 2012–REVISED JANUARY 2013
Dual 5-A High-Speed Low-Side Gate Driver Based on CMOS Input Threshold Logic
Check for Samples: UCC27527, UCC27528
1
FEATURES
APPLICATIONS
•
•
•
•
Industry-Standard Pin Out
•
•
•
•
Switch-Mode Power Supplies
DC-to-DC Converters
Two Independent Gate-Drive Channels
5-A Peak Source and Sink Drive Current
Motor Control, Solar Power
CMOS Input Logic Threshold
(function of supply voltage on VDD pins)
Gate Drive for Emerging Wide Band Gap
Power Devices such as GaN
•
Hysteretic Logic Thresholds for High Noise
Immunity
DESCRIPTION
The UCC2752x family of devices are dual-channel,
high-speed, low-side gate driver devices capable of
effectively driving MOSFET and IGBT power
switches. Using a design that inherently minimizes
shoot-through current, UCC2752x is capable of
delivering high-peak current pulses of up to 5-A
source and 5-A sink into capacitive loads along with
rail-to-rail drive capability and extremely small
propagation delay typically 17 ns. In addition, the
drivers feature matched internal propagation delays
between the two channels which are very well suited
for applications requiring dual-gate drives with critical
timing, such as synchronous rectifiers. The input pin
thresholds are based on CMOS logic, which is a
function of the VDD supply voltage. Wide hysteresis
between the high and low thresholds offers excellent
noise immunity. The Enable pins are based on TTL
and CMOS compatible logic, independent of VDD
supply voltage.
•
•
Independent Enable Function for Each Output
Inputs and Enable Pin Voltage Levels Not
Restricted by VDD Pin Bias Supply Voltage
•
•
4.5-V to 18-V Single Supply Range
Outputs Held Low During VDD UVLO, (ensures
glitch-free operation at power-up and power-
down)
•
•
Fast Propagation Delays (17-ns typical)
Fast Rise and Fall Times (7-ns and 6-ns
typical)
•
1-ns Typical Delay Matching Between 2-
Channels
•
•
Outputs Held in LOW When Inputs Floating
SOIC-8, and 3-mm x 3-mm WSON-8 Package
Options
•
•
Operating Temperature Range of -40°C to
140°C
-5-V Negative Voltage Handling Capability on
Input Pins
Product Matrix
Dual Input Configuration
Dual Non-Inverting Inputs
UCC27527
UCC27528
INA-
1
8
INA+
ENA
1
8
7
6
5
ENB
OUTA
VDD
INA
GND
INB
2
3
4
INB-
GND
2
3
4
7
6
5
INB+
OUTA
VDD
OUTB
OUTB
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2012–2013, Texas Instruments Incorporated
UCC27527
UCC27528
SLUSBD0B –DECEMBER 2012–REVISED JANUARY 2013
www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
DESCRIPTION (CONT.)
The UCC27528 is a dual non-inverting driver. UCC27527 features a dual input design which offers flexibility of
both inverting (IN- pin) and non-inverting (IN+ pin) configuration for each channel. Either IN+ or IN- pin can be
used to control the state of the driver output. The unused input pin can be used for enable and disable functions.
For safety purpose, internal pull-up and Pull-down resistors on the input pins of all the devices in UCC2752x
family in order to ensure that outputs are held LOW when input pins are in floating condition. UCC27528 features
Enable pins (ENA and ENB) to have better control of the operation of the driver applications. The pins are
internally pulled up to VDD for active high logic and can be left open for standard operation.
ORDERING INFORMATION(1)(2)
PART NUMBER
UCC27527
PACKAGE
OPERATING TEMPERATURE RANGE, TA
SOIC 8-Pin (D) and WSON 8-pin (DSD)
SOIC 8-Pin (D) and WSON 8-pin (DSD)
-40°C to 140°C
UCC27528
(1) For the most current package and ordering information, see Package Option Addendum at the end of this document.
(2) All packages use Pb-Free lead finish of Pd-Ni-Au which is compatible with MSL level 1 at 255°C to 260°C peak reflow temperature to be
compatible with either lead free or Sn/Pb soldering operations. DSD package is rated MSL level 2.
ABSOLUTE MAXIMUM RATINGS(1)(2)
over operating free-air temperature range (unless otherwise noted)
MIN
-0.3 to
MAX
20.0
UNIT
Supply voltage range
OUTA, OUTB voltage
VDD
DC
-0.3 to VDD + 0.3
-2.0 to VDD + 0.3
V
Repetitive pulse < 200 ns(3)
Output continuous source/sink
current
IOUT_DC
0.3
5
A
V
Output pulsed source/sink current
(0.5 µs)
INA, INB, INA+, INA-, INB+, INB- voltage(4)
ENA, ENB voltage(4)
IOUT_pulsed
-6.5
-0.3
20
20
Human body model, HBM
Charge device model, CDM
4000
1000
150
150
300
260
ESD(5)
Operating virtual junction temperature, TJ range
Storage temperature range, Tstg
-40
-65
°C
Soldering, 10 sec.
Reflow
Lead temperature
(1) Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings
only and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating
conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltages are with respect to GND unless otherwise noted. Currents are positive into, negative out of the specified terminal. See
Packaging Section of the datasheet for thermal limitations and considerations of packages.
(3) Values are verified by characterization on bench.
(4) The maximum voltage on the Input and Enable pins is not restricted by the voltage on the VDD pin.
(5) These devices are sensitive to electrostatic discharge; follow proper device handling procedures.
2
Submit Documentation Feedback
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: UCC27527 UCC27528
UCC27527
UCC27528
www.ti.com
SLUSBD0B –DECEMBER 2012–REVISED JANUARY 2013
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
MIN
4.5
-40
-5
TYP
MAX
18
UNIT
V
Supply voltage range, VDD
12
Operating junction temperature range
Input voltage, INA, INB, INA+, INA-, INB+, INB-
Enable voltage, ENA and ENB
140
18
°C
V
0
18
THERMAL INFORMATION
UCC27527, UCC27528
THERMAL METRIC
D
8 PINS
128
DSD
8 PINS
46.1
50.7
21.8
1.1
UNITS
θJA
Junction-to-ambient thermal resistance(1)
Junction-to-case (top) thermal resistance(2)
Junction-to-board thermal resistance(3)
Junction-to-top characterization parameter(4)
Junction-to-board characterization parameter(5)
Junction-to-case (bottom) thermal resistance(6)
θJCtop
θJB
77.7
68.5
20.7
68.0
n/a
°C/W
ψJT
ψJB
22.0
9.0
θJCbot
(1) The junction-to-ambient thermal resistance under natural convection is obtained in a simulation on a JEDEC-standard, high-K board, as
specified in JESD51-7, in an environment described in JESD51-2a.
(2) The junction-to-case (top) thermal resistance is obtained by simulating a cold plate test on the package top. No specific JEDEC-
standard test exists, but a close description can be found in the ANSI SEMI standard G30-88.
(3) The junction-to-board thermal resistance is obtained by simulating in an environment with a ring cold plate fixture to control the PCB
temperature, as described in JESD51-8.
(4) The junction-to-top characterization parameter, ψJT, estimates the junction temperature of a device in a real system and is extracted
from the simulation data for obtaining θJA, using a procedure described in JESD51-2a (sections 6 and 7).
(5) The junction-to-board characterization parameter, ψJB, estimates the junction temperature of a device in a real system and is extracted
from the simulation data for obtaining θJA , using a procedure described in JESD51-2a (sections 6 and 7).
(6) The junction-to-case (bottom) thermal resistance is obtained by simulating a cold plate test on the exposed (power) pad. No specific
JEDEC standard test exists, but a close description can be found in the ANSI SEMI standard G30-88.
Spacer
Copyright © 2012–2013, Texas Instruments Incorporated
Submit Documentation Feedback
3
Product Folder Links: UCC27527 UCC27528
UCC27527
UCC27528
SLUSBD0B –DECEMBER 2012–REVISED JANUARY 2013
www.ti.com
ELECTRICAL CHARACTERISTICS
VDD = 12 V, TA = TJ = -40°C to 140°C, 1-µF capacitor from VDD to GND. Currents are positive into, negative out of the
specified terminal (unless otherwise noted,)
PARAMETER
Bias Currents
TEST CONDITION
MIN
TYP
MAX
UNITS
VDD = 3.4 V,
INA=VDD,
INB=VDD
55
25
125
225
Startup current,
(based on UCC27524 Input
configuration)
IDD(off)
μA
VDD = 3.4 V,
INA=GND,
INB=GND
125
225
Under Voltage LockOut (UVLO)
TJ = 25°C
3.91
3.75
4.20
4.20
4.50
4.65
VON
Supply start threshold
TJ = -40°C to 140°C
V
Minimum operating voltage
after supply start
VOFF
3.60
0.20
3.90
0.30
4.40
0.50
VDD_H
Supply voltage hysteresis
Inputs (INA, INB, INA+, INA-, INB+, INB-), UCC2752X (D, DSD)
Output high for non-inverting input pins
Output low for inverting input pins
VIN_H
Input signal high threshold
55
70
Output low for non-inverting input pins
Output high for inverting input pins
%VDD
VIN_L
Input signal low threshold
Input hysteresis
30
38
17
VIN_HYS
Enable (ENA, ENB) UCC2752X (D, DSD)
VEN_H
VEN_L
Enable signal high threshold
Enable signal low threshold
Output enabled
Output disabled
1.7
0.95
0.70
1.9
1.10
0.80
2.1
1.25
1.10
V
VEN_HYS Enable hysteresis
Outputs (OUTA, OUTB)
ISNK/SRC Sink/source peak current(1)
CLOAD = 0.22 µF, FSW = 1 kHz
IOUT = -10 mA
±5
A
V
VDD-VOH High output voltage
0.075
0.01
7.5
VOL
ROH
ROL
Low output voltage
Output pull-up resistance(2)
IOUT = 10 mA
IOUT = -10 mA
2.5
5
Ω
Ω
Output pull-down resistance
IOUT = 10 mA
0.15
0.5
1
Switching Time
(3)
tR
tF
Rise time
Fall time(3)
CLOAD = 1.8 nF, VDD = 10 V
CLOAD = 1.8 nF, VDD = 10 V
7
6
Delay matching between 2
channels
INA = INB, OUTA and OUTB at 50% transition
point, VDD = 10 V
tM
1
4
Minimum input pulse width
that changes the output
state(3)
ns
tPW
VDD = 10 V
15
Input to output propagation
delay
tD1, tD2
tD3, tD4
CLOAD = 1.8 nF, 7-V input pulse, VDD = 10 V
CLOAD = 1.8 nF, 7-V enable pulse, VDD = 10 V
6
6
17
13
26
23
(3)
EN to output propagation
(3)
delay
(1) Ensured by design.
(2) ROH represents on-resistance of only the P-Channel MOSFET device in pull-up structure of UCC2752X output stage.
(3) See timing diagrams in Figure 1, Figure 2, Figure 3 and Figure 4
4
Submit Documentation Feedback
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: UCC27527 UCC27528
UCC27527
UCC27528
www.ti.com
SLUSBD0B –DECEMBER 2012–REVISED JANUARY 2013
Timing Diagrams
High
Input
Low
High
Input
Low
High
High
Enable
Enable
Low
Low
90%
Output
10%
90%
Output
10%
tD3
tD4
tD3
tD4
UDG-11218
UDG-11217
Figure 1. Enable Function
(for non-inverting input driver operation)
Figure 2. Enable Function
(for inverting input driver operation)
High
High
Input
Input
Low
Low
High
High
Enable
Enable
Low
Low
90%
Output
10%
90%
Output
10%
UDG-11220
tD1
tD2
tD1
tD2
UDG-11219
Figure 3. Non-Inverting Input Driver Operation
Figure 4. Inverting Input Driver Operation
Copyright © 2012–2013, Texas Instruments Incorporated
Submit Documentation Feedback
5
Product Folder Links: UCC27527 UCC27528
UCC27527
UCC27528
SLUSBD0B –DECEMBER 2012–REVISED JANUARY 2013
www.ti.com
DEVICE INFORMATION
UCC27528DSD
(TOP VIEW)
UCC27528D
(TOP VIEW)
UCC27527D
(TOP VIEW)
UCC27527DSD
(TOP VIEW)
1
2
8
7
1
2
8
7
INA-
INB-
1
2
8
7
ENA
INA
ENB
INA+
INB+
ENA
INA
ENB
1
2
8
7
INA-
INB-
INA+
INB+
OUTA
OUTA
3
4
6
5
3
4
6
5
GND
3
4
6
5
OUTA
VDD
GND
INB
VDD
3
4
6
5
GND
INB
VDD
GND
OUTA
VDD
OUTB
OUTB
OUTB
OUTB
Figure 5.
TERMINAL FUNCTIONS (UCC27527)
TERMINAL
I/O
FUNCTION
NUMBER
NAME
1
INA-
I
Inverting Input to Channel A: when Channel A is used in Non-Inverting
configuration connect INA- to GND in order to Enable Channel A output, OUTA held
LOW if INA- is unbiased or floating.
2
INB-
I
Inverting Input to Channel B: when Channel B is used in Non-Inverting
configuration connect INB- to GND in order to Enable Channel B output, OUTB held
LOW if INB- is unbiased or floating.
3
4
5
6
7
GND
OUTB
VDD
-
I
Ground: All signals referenced to this pin.
Output of Channel B
O
I
Bias Supply Input
OUTA
INB+
Output of Channel A
O
Non-Inverting Input to Channel B: When Channel B is used in Inverting
configuration connect INB+ to VDD in order to Enable Channel B output, OUTB held
LOW if INB+ is unbiased or floating.
8
INA+
I
Non-Inverting Input to Channel A: When Channel A is used in Inverting
configuration connect INA+ to VDD in order to Enable Channel A output, OUTA held
LOW if INA+ is unbiased or floating.
TERMINAL FUNCTIONS (UCC27528)
TERMINAL
I/O
FUNCTION
NUMBER
NAME
1
ENA
I
Enable input for Channel A: ENA biased LOW Disables Channel A output
regardless of INA state, ENA biased HIGH or floating Enables Channel A output,
ENA allowed to float.
2
INA
I
Input to Channel A: Non-Inverting Input in UCC27528, OUTA held LOW if INA is
unbiased or floating.
3
4
GND
INB
-
I
Ground: All signals referenced to this pin.
Input to Channel B: Non-Inverting Input in UCC27528, OUTB held LOW if INB is
unbiased or floating.
5
6
7
8
OUTB
VDD
O
I
Output of Channel B
Bias supply input
OUTA
ENB
O
I
Output of Channel A
Enable input for Channel B: ENB biased LOW Disables Channel B output
regardless of INB state, ENB biased HIGH or floating Enables Channel B output,
ENB allowed to float.
6
Submit Documentation Feedback
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: UCC27527 UCC27528
UCC27527
UCC27528
www.ti.com
SLUSBD0B –DECEMBER 2012–REVISED JANUARY 2013
Table 1. Device Logic Table (UCC27528)
UCC27528
ENA
ENB
H
INA
L
INB
L
OUTA
OUTB
H
H
L
L
L
H
L
H
L
H
H
H
H
L
H
H
L
H
H
H
H
H
L
L
L
Any
x(1)
L
Any
x(1)
L
Any
x(1)
x(1)
x(1)
x(1)
Any
x(1)
x(1)
x(1)
x(1)
L
L
L
L
L
H
L
H
L
H
L
H
H
H
H
H
(1) Floating condition.
Table 2. Device Logic Table (UCC27527)
INx+ (x = A or B)
INx- (x = A or B)
OUTx (x = A or B)
L
L
L
H
L
L
H
L
L
L
H
L
H
x(1)
H
Any
x(1)
Any
(1) x = Floating condition.
Copyright © 2012–2013, Texas Instruments Incorporated
Submit Documentation Feedback
7
Product Folder Links: UCC27527 UCC27528
UCC27527
UCC27528
SLUSBD0B –DECEMBER 2012–REVISED JANUARY 2013
www.ti.com
Functional Block Diagrams
VDD
VDD
500 kW
500 kW
ENA
1
8
ENB
VDD
INA
OUTA
2
7
VDD
465 kW
VDD
VDD
UVLO
6
5
GND
INB
3
4
VDD
OUTB
465 kW
Figure 6. UCC27524 Block Diagram
INA+
8
VDD
465 kW
5
VDD
VDD
VDD
230 kW
INA-
GND
1
3
6
OUTA
VDD
UVLO
VDD
INB+
7
4
OUTB
VDD
465 kW
230 kW
INB-
2
Figure 7. UCC27527 Block Diagram
8
Submit Documentation Feedback
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: UCC27527 UCC27528
UCC27527
UCC27528
www.ti.com
SLUSBD0B –DECEMBER 2012–REVISED JANUARY 2013
TYPICAL CHARACTERISTICS
START-UP CURRENT
vs
OPERATING SUPPLY CURRENT
vs
TEMPERATURE
TEMPERATURE (Outputs switching)
0.17
0.16
0.15
0.14
0.13
0.12
0.11
0.10
10
9
IN=Low/High
8
VDD=12V
CLoad=500pF
fSW=500kHz
7
Both Channel Switching
150
VDD=3.4V
150
6
−50
−50
0
50
100
0
50
100
100
100
Temperature (°C)
Temperature (°C)
G001
G001
Figure 8.
Figure 9.
SUPPLY CURRENT
vs
TEMPERATURE (Outputs in DC on/off condition)
UVLO THRESHOLD
vs
TEMPERATURE
0.8
0.7
0.6
0.5
0.4
0.3
4.8
4.6
4.4
4.2
4
INA/INB=VDD
INA/INB=GND
UVLO Rising
UVLO Falling
VDD=12V
3.8
−50
−50
0
50
100
150
0
50
150
Temperature (°C)
Temperature (°C)
G001
G001
Figure 10.
Figure 11.
INPUT THRESHOLD
vs
TEMPERATURE
ENABLE THRESHOLD
vs
TEMPERATURE
7.6
7
2.2
1.8
1.4
1
VDD=12V
VDD=12V
Input High Threshold
Input Low Threshold
EN High Threshold
EN Low Threshold
6.4
5.8
5.2
4.6
4
−50
0
50
100
150
−50
0
50
150
Temperature (°C)
Temperature (°C)
G001
G001
Figure 12.
Figure 13.
Copyright © 2012–2013, Texas Instruments Incorporated
Submit Documentation Feedback
9
Product Folder Links: UCC27527 UCC27528
UCC27527
UCC27528
SLUSBD0B –DECEMBER 2012–REVISED JANUARY 2013
www.ti.com
TYPICAL CHARACTERISTICS (continued)
OUTPUT PULL-UP RESISTANCE
OUTPUT PULL-DOWN RESISTANCE
vs
vs
TEMPERATURE
TEMPERATURE
7
6
5
4
3
1
0.8
0.6
0.4
0.2
RoH
RoL
VDD=12V
Iout=10mA
VDD=12V
Iout=10mA
−50
0
50
100
150
−50
0
50
100
150
Temperature (°C)
Temperature (°C)
G001
G001
Figure 14.
Figure 15.
RISE TIME
vs
FALL TIME
vs
TEMPERATURE
TEMPERATURE
8
7
6
5
4
8
7
6
5
4
VDD=10V
Cload=1.8nF
VDD=10V
Cload=1.8nF
−50
0
50
100
150
−50
0
50
100
150
Temperature (°C)
Temperature (°C)
G001
G001
Figure 16.
Figure 17.
INPUT TO OUTPUT PROPAGATION DELAY
EN TO OUTPUT PROPAGATION DELAY
vs
vs
TEMPERATURE
TEMPERATURE
20
18
16
14
12
16
14
12
10
8
Turn−On
Turn_Off
Turn−On
Turn_Off
VDD=10V
VDD=10V
−50
0
50
100
150
−50
0
50
100
150
Temperature (°C)
Temperature (°C)
G001
G001
Figure 18.
Figure 19.
10
Submit Documentation Feedback
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: UCC27527 UCC27528
UCC27527
UCC27528
www.ti.com
SLUSBD0B –DECEMBER 2012–REVISED JANUARY 2013
TYPICAL CHARACTERISTICS (continued)
OPERATING SUPPLY CURRENT
PROPAGATION DELAYS
vs
vs
FREQUENCY
SUPPLY VOLTAGE
70
60
50
40
30
20
10
0
30
26
22
18
14
10
6
VDD = 4.5 V
VDD = 12 V
VDD = 15 V
Input to Output On Delay
Input to Output Off Delay
EN to Output On Delay
EN to Output Off Delay
Cload=1.8nF
Both channels switching
Cload=1.8nF
0
100 200 300 400 500 600 700 800 900 1000
4
8
12
16
20
Frequency (kHz)
Supply Voltage (V)
G000
G000
Figure 20.
Figure 21.
RISE TIME
vs
FALL TIME
vs
SUPPLY VOLTAGE
SUPPLY VOLTAGE
18
12
6
10
8
Cload=1.8nF
Cload=1.8nF
6
4
4
8
12
16
20
4
8
12
16
20
Supply Voltage (V)
Supply Voltage (V)
G000
G000
Figure 22.
Figure 23.
ENABLE THRESHOLD
vs
TEMPERATURE
2.5
2
VDD = 4.5 V
Enable High Threshold
Enable Low Threshold
1.5
1
0.5
−50
0
50
100
150
Temperature (°C)
G017
Figure 24.
Copyright © 2012–2013, Texas Instruments Incorporated
Submit Documentation Feedback
11
Product Folder Links: UCC27527 UCC27528
UCC27527
UCC27528
SLUSBD0B –DECEMBER 2012–REVISED JANUARY 2013
www.ti.com
APPLICATION INFORMATION
High-current gate-driver devices are required in switching power applications for a variety of reasons. In order to
effect fast switching of power devices and reduce associated switching power losses, a powerful gate driver
device can be employed between the PWM output of control devices and the gates of the power semiconductor
devices. Further, gate driver devices are indispensable when sometimes it is just not feasible to have the PWM
controller device directly drive the gates of the switching devices. With advent of digital power, this situation will
be often encountered since the PWM signal from the digital controller is often a 3.3-V logic signal which is not
capable of effectively turning on a power switch. A level shifting circuitry is needed to boost the 3.3-V signal to
the gate-drive voltage (such as 12 V) in order to fully turn on the power device and minimize conduction losses.
Traditional buffer drive circuits based on NPN/PNP bipolar transistors in totem-pole arrangement, being emitter
follower configurations, prove inadequate with digital power since they lack level-shifting capability. Gate driver
devices effectively combine both the level-shifting and buffer drive functions. Gate driver devices also find other
needs such as minimizing the effect of high-frequency switching noise by locating the high-current driver
physically close to the power switch, driving gate drive transformers and controlling floating power device gates,
reducing power dissipation and thermal stress in controller devices by moving gate charge power losses into
itself. In summary Gate-driver devices are an extremely important component in switching power combining
benefits of high performance, low cost, component count, board-space reduction and simplified system design.
ENB
UCC2752x
ENA
1
2
3
4
ENA
ENB
OUTA
VDD
8
7
6
5
INA
INA
V+
GND
INB
GND
INB
OUTB
GND
GND
UDG-11225
Figure 25. UCC2752x Typical Application Diagram (x = 8)
12
Submit Documentation Feedback
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: UCC27527 UCC27528
UCC27527
UCC27528
www.ti.com
SLUSBD0B –DECEMBER 2012–REVISED JANUARY 2013
UCC27527
INA-
INA-
1
2
3
4
INA+
INB+
OUTA
VDD
8
7
6
5
INB+
INB-
GND
OUTB
V+
GND
GND
GND
Figure 26. UCC27527 Channel A in Inverting and Channel B in Non-Inverting Configuration,
(enable function not used)
OUTA is
ENABLED when
UCC27527
ENA is HIGH
INA-
ENB
ENA
1
2
3
4
INA-
INA+
INB+
OUTA
VDD
8
7
6
5
INB+
INB-
OUTB is
ENABLED when
ENB is LOW
GND
OUTB
V+
GND
GND
GND
Figure 27. UCC27527 Channel A in Inverting and Channel B in Non-Inverting Configuration,
(enable function implemented)
Copyright © 2012–2013, Texas Instruments Incorporated
Submit Documentation Feedback
13
Product Folder Links: UCC27527 UCC27528
UCC27527
UCC27528
SLUSBD0B –DECEMBER 2012–REVISED JANUARY 2013
www.ti.com
Introduction
The UCC2752x family of products represent Texas Instruments’ latest generation of dual-channel, low-side high-
speed gate driver devices featuring 5-A source/sink current capability, industry best-in-class switching
characteristics and a host of other features listed in table below all of which combine to guarantee efficient,
robust and reliable operation in high-frequency switching power circuits.
Table 3. UCC27527 and UCC27528 Features and Benefits
FEATURE
Best-in-class 13-ns (typ) propagation delay
1-ns (typ) delay matching between channels
BENEFIT
Extremely low pulse transmission distortion
Ease of paralleling outputs for higher (2x) current capability, ease of
driving parallel power switches
Expanded VDD Operating range of 4.5 V to 18 V
Flexibility in system design
Expanded operating temperature range of -40°C to 140°C
(See ELECTRICAL CHARACTERISTICS table)
VDD UVLO Protection
Outputs are held Low in UVLO condition, which ensures predictable,
glitch-free operation at power-up and power-down
Outputs held Low when input pins (INx) in floating condition
Outputs enabled when enable pins (ENx) in floating condition
CMOS input threshold logic
Safety feature, especially useful in passing abnormal condition tests
during safety certification
Pin-to-pin compatibility with UCC2732X family of products from TI, in
designs where pin #1, 8 are in floating condition
Enhanced noise immunity, higher threshold level and wider
hysteresis which is a function of VDD supply voltage and ability to
employ RCD delay circuits on input pins.
Ability of input and enable pins to handle voltage levels not restricted System simplification, especially related to auxiliary bias supply
by VDD pin bias voltage
architecture
14
Submit Documentation Feedback
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: UCC27527 UCC27528
UCC27527
UCC27528
www.ti.com
SLUSBD0B –DECEMBER 2012–REVISED JANUARY 2013
VDD and Under Voltage Lockout
The UCC2752x devices have internal under voltage lockout (UVLO) protection feature on the VDD pin supply
circuit blocks. When VDD is rising and the level is still below UVLO threshold, this circuit holds the output LOW,
regardless of the status of the inputs. The UVLO is typically 4.25 V with 350-mV typical hysteresis. This
hysteresis helps prevent chatter when low VDD supply voltages have noise from the power supply and also
when there are droops in the VDD bias voltage when the system commences switching and there is a sudden
increase in IDD. The capability to operate at low voltage levels such as below 5 V, along with best in class
switching characteristics, is especially suited for driving emerging GaN power semiconductor devices.
For example, at power-up, the UCC2752x driver-device output remains LOW until the VDD voltage reaches the
UVLO threshold if Enable pin is active or floating. The magnitude of the OUT signal rises with VDD until steady-
state VDD is reached. The non-inverting operation in Figure 28 shows that the output remains LOW until the
UVLO threshold is reached, and then the output is in-phase with the input. The inverting operation in Figure 29
shows that the output remains LOW until the UVLO threshold is reached, and then the output is out-phase with
the input. With UCC27527 the output turns to high state only if INX+ is high and INX- is low after the UVLO
threshold is reached.
Since the device draws current from the VDD pin to bias all internal circuits, for the best high-speed circuit
performance, two VDD bypass capacitors are recommended to prevent noise problems. The use of surface
mount components is highly recommended. A 0.1-μF ceramic capacitor should be located as close as possible to
the VDD to GND pins of the gate-driver device. In addition, a larger capacitor (such as 1-μF) with relatively low
ESR should be connected in parallel and close proximity, in order to help deliver the high-current peaks required
by the load. The parallel combination of capacitors should present a low impedance characteristic for the
expected current levels and switching frequencies in the application.
VDD Threshold
VDD Threshold
VDD
EN
VDD
EN
IN
IN
OUT
OUT
UDG-11229
UDG-11228
Figure 28. Power-Up Non-Inverting Driver
Operating Supply Current
Figure 29. Power-Up Inverting Driver
The UCC2752x products feature very low quiescent IDD currents. The typical operating supply current in Under
Voltage Lock-Out (UVLO) state and fully-on state (under static and switching conditions) are summarized in
Figure 8, Figure 9 and Figure 10. The IDD current when the device is fully on and outputs are in a static state (DC
high or DC low, refer Figure 9) represents lowest quiescent IDD current when all the internal logic circuits of the
device are fully operational. The total supply current is the sum of the quiescent IDD current, the average IOUT
current due to switching and finally any current related to pull-up resistors on the enable pins and inverting input
pins. For example when the inverting Input pins are pulled low additional current is drawn from VDD supply
through the pull-up resistors (refer to Figure 6 though Figure 7). Knowing the operating frequency (fSW) and the
MOSFET gate (QG) charge at the drive voltage being used, the average IOUT current can be calculated as
product of QG and fSW
.
A complete characterization of the IDD current as a function of switching frequency at different VDD bias voltages
under 1.8-nF switching load in both channels is provided in Figure 20. The strikingly linear variation and close
correlation with theoretical value of average IOUT indicates negligible shoot-through inside the gate-driver device
attesting to its high-speed characteristics.
Copyright © 2012–2013, Texas Instruments Incorporated
Submit Documentation Feedback
15
Product Folder Links: UCC27527 UCC27528
UCC27527
UCC27528
SLUSBD0B –DECEMBER 2012–REVISED JANUARY 2013
www.ti.com
Input Stage
The Input pins of UCC2752X gate driver devices are based on what is known as CMOS input threshold logic. In
CMOS input threshold logic the threshold voltage level is a function of the bias voltage on the VDD pin of the
device. The typical high threshold is 55% of VDD supply voltage and the typical low threshold is 38% of VDD
supply voltage. There is built in hysteresis which is typically 17% of VDD supply voltage.
In most applications, the absolute value of the threshold voltage offered by the CMOS logic will be higher (eg.
VINH = 5.5 V if VDD = 10 V) than what is offered by the more common TTL and CMOS compatible input
threshold logic where VINH is typically less than 3 V). The same is true of the input threshold hysteresis
parameter as well. This offers the following benefits:
•
•
Better noise immunity which is desirable in high power systems.
Ability to accept slow dV/dt input signals, which allows designers to use RCD circuits on the input pin to
program propagation delays in the application, as shown below:
D
PWM Input
Rdel
VH
INx
OUTx
VL
Cdel
VIN
PWM Input Signal
Driver Output
Figure 30. Using RCD Circuits
V - V
æ
ö
L
IN_H
tdel = -RdelCdel ´In
+1
ç
÷
ç
÷
VH - VL
è
ø
(1)
The UCC2752x devices feature an important safety feature, whenever any of the input pins is in a floating
condition, the output of the respective channel is held in the low state. This is achieved using VDD pull-up
resistors on all the inverting inputs (INA-, INB- in UCC27527) or GND pull-down resistors on all the non-inverting
input pins (INA, INB in UCC27528 and INA+, INB+ in UCC27527), as shown in the device's block diagrams.
While UCC27528 features one input pin per channel, the UCC27527 features a dual input configuration with two
input pins available to control the output state of each channel. With the UCC27527 device the user has the
flexibility to drive each channel using either a non-inverting input pin (INx+) or an inverting input pin (INx-). The
state of the output pin is dependent on the bias on both the INx+ and INx- pins (where x = A, B). Once an input
pin has been chosen to drive a channel, the other input pin of that channel (the unused Input pin) must be
properly biased in order to enable the output of the channel. The unused input pin cannot remain in a floating
condition because, as mentioned earlier, whenever any input pin is left in a floating condition, the output of that
channel is disabled using the internal pull-up and down resistors for safety purposes. Alternatively, the unused
input pin can effectively be used to implement an enable and disable function, as explained below.
•
•
•
In order to drive the channel “x” (x = A or B) in a non-inverting configuration, apply the PWM control input
signal to INx+ pin. In this case, the unused input pin, INx-, must be biased low (eg. tied to GND) in order to
enable the output of this channel.
–
Alternately, the INx- pin can be used to implement the enable and disable function using an external logic
signal. OUTx is disabled when INx- is biased high and OUTx is enabled when INX- is biased low.
In order to drive the channel “X” (X = A or B) in an inverting configuration, apply the PWM control input signal
to INX- pin. In this case, the unused input pin, INX+, must be biased high (eg. tied to VDD) in order to enable
the output of the channel.
–
Alternately, the INX+ pin can be used to implement the enable and disable function using an external logic
signal. OUTX is disabled when INX+ is biased low and OUTX is enabled when INX+ is biased high.
Finally, it is worth noting that the UCC27527 output pin can be driven into high state ONLY when INx+ pin is
biased high AND INx- input is biased low.
Refer to the input and output logic truth table and typical application diagram for additional clarification.
16
Submit Documentation Feedback
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: UCC27527 UCC27528
UCC27527
UCC27528
www.ti.com
SLUSBD0B –DECEMBER 2012–REVISED JANUARY 2013
Enable Function
The enable function is an extremely beneficial feature in gate driver devices especially for certain applications
such as synchronous rectification where the driver outputs can be disabled in light-load conditions to prevent
negative current circulation and to improve light-load efficiency.
UCC27528 device is provided with independent enable pins ENx for exclusive control of each driver channel
operation. The enable pins are based on a non-inverting configuration (active high operation). Thus when ENx
pins are driven high the drivers are enabled and when ENx pins are driven low the drivers are disabled. Like the
input pins, the enable pins are also based on a TTL/CMOS compatible input threshold logic that is independent
of the supply voltage and can be effectively controlled using logic signals from 3.3-V and 5-V microcontrollers.
The UCC2752X devices also feature tight control of the Enable function threshold voltage levels which eases
system design considerations and ensures stable operation across temperature (refer to Figure 13). The ENx
pins are internally pulled up to VDD using pull-up resistors as a result of which the outputs of the device are
enabled in the default state. Hence the ENx pins can be left floating or Not Connected (N/C) for standard
operation, where the enable feature is not needed. Essentially, this allows the UCC27528 device to be pin-to-pin
compatible with TI’s previous generation drivers UCC27323/4/5 respectively, where pins #1, 8 are N/C pins. If
the channel A and Channel B inputs and outputs are connected in parallel to increase the driver current capacity,
ENA and ENB should be connected and driven together.
The UCC27527 device does not feature dedicated enable pins. However, as mentioned earlier, an
enable/disable function can be easily implemented in UCC27527 using the unused input pin. When INx+ is
pulled-down to GND or INx- is pulled-down to VDD, the output is disabled. Thus INx+ pin can be used like an
enable pin that is based on active high logic, while INx- can be used like an enable pin that is based on active
low logic. It is important to note that while the ENA, ENB pins in the UCC27528 are allowed to be in floating
condition during standard operation and the outputs will be enabled, the INx+, INx- pins in UCC27527 are not
allowed to be floating since this will disable the outputs.
Copyright © 2012–2013, Texas Instruments Incorporated
Submit Documentation Feedback
17
Product Folder Links: UCC27527 UCC27528
UCC27527
UCC27528
SLUSBD0B –DECEMBER 2012–REVISED JANUARY 2013
www.ti.com
Output Stage
The UCC2752x device output stage features a unique architecture on the pull-up structure which delivers the
highest peak Source current when it is most needed during the Miller plateau region of the power switch turn-on
transition (when the power switch drain/collector voltage experiences dV/dt). The output stage pull-up structure
features a P-Channel MOSFET and an additional N-Channel MOSFET in parallel. The function of the N-Channel
MOSFET is to provide a brief boost in the peak sourcing current enabling fast turn-on. This is accomplished by
briefly turning-on on the N-Channel MOSFET during a narrow instant when the output is changing state from Low
to High.
VCC
ROH
RNMOS, Pull Up
Gate
Voltage
Boost
OUT
Anti Shoot-
Through
Circuitry
Input Signal
Narrow Pulse at
each Turn On
ROL
Figure 31. UCC2752X Gate Driver Output Structure
The ROH parameter (see ELECTRICAL CHARACTERISTICS) is a DC measurement and it is representative of
the on-resistance of the P-Channel device only. This is because the N-Channel device is held in the off state in
DC condition and is turned-on only for a narrow instant when output changes state from low to high. Thus it
should be noted that effective resistance of UCC2752x pull-up stage during turn-on instant is much lower than
what is represented by ROH parameter.
The pull-down structure in UCC2752x is simply composed of a N-Channel MOSFET. The ROL parameter (see
ELECTRICAL CHARACTERISTICS), which is also a DC measurement, is representative of the impedance of the
pull-down stage in the device. In UCC2752x, the effective resistance of the hybrid pull-up structure during turn-on
is estimated to be approximately 1.5 x ROL, estimated based on design considerations.
Each output stage in UCC2752x is capable of supplying 5-A peak source and 5-A peak sink current pulses. The
output voltage swings between VDD and GND providing rail-to-rail operation, thanks to the MOS output stage
which delivers very low drop-out. The presence of the MOSFET body diodes also offers low impedance to
switching overshoots and undershoots. This means that in many cases, external Schottky diode clamps may be
eliminated. The outputs of these drivers are designed to withstand 500-mA reverse current without either
damage to the device or logic malfunction.
The UCC2752x devices are particularly suited for dual-polarity, symmetrical drive gate transformer applications
where the primary winding of transformer driven by OUTA and OUTB, with inputs INA and INB being driven
complementary to each other. This is due to the extremely low drop-out offered by the MOS output stage of
these devices, both during high (VOH) and low (VOL) states along with the low impedance of the driver output
stage, all of which allow alleviate concerns regarding transformer demagnetization and flux imbalance. The low
propagation delays also ensure accurate reset for high-frequency applications.
For applications that have zero voltage switching during power MOSFET turn-on or turn-off interval, the driver
supplies high-peak current for fast switching even though the miller plateau is not present. This situation often
occurs in synchronous rectifier applications because the body diode is generally conducting before power
MOSFET is switched on.
18
Submit Documentation Feedback
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: UCC27527 UCC27528
UCC27527
UCC27528
www.ti.com
SLUSBD0B –DECEMBER 2012–REVISED JANUARY 2013
Low Propagation Delays and Tightly Matched Outputs
The UCC2752x driver devices offer a very low propagation delay of 17-ns (typical) between input and output
which offers lowest level of pulse transmission distortion available in the industry for high-frequency switching
applications. For example in synchronous rectifier applications, the SR MOSFETs can be driven with very low
distortion when a single driver device is used to drive both the SR MOSFETs. Further, the driver devices also
feature an extremely accurate, 1-ns (typ) matched internal propagation delays between the two channels which
is beneficial for applications requiring dual gate drives with critical timing. For example in a PFC application, a
pair of paralleled MOSFETs may be driven independently using each output channel, which the inputs of both
channels are driven by a common control signal from the PFC controller device. In this case the 1-ns delay
matching ensures that the paralleled MOSFETs are driven in a simultaneous fashion with the minimum of turn-on
delay difference.
Since the CMOS input threshold of UCC27528 allows the use of slow dV/dt input signals, when paralleling
outputs for obtaining higher peak output current capability, it is recommended to connect external gate resistors
directly to the output pins to avoid shoot-through current conduction between the 2 channels, as shown in
Figure 32. While the two channels are inherently very well matched (4-ns Max propagation delay), it should be
noted that there may be differences in the input threshold voltage level between the two channels or differences
in the input signals which can cause the delay between the two outputs.
VDD
VDD
500 kW
500 kW
ENA
INA
1
2
8
7
ENB
ISHOOT-THROUGH
OUTA
VDD
Slow Input Signal
VIN_H
(Channel B)
VDD
465 kW
VIN_H
(Channel A)
VDD
VDD
UVLO
6
5
GND
INB
3
4
VDD
OUTB
465 kW
Figure 32. Slow Input Signal May Cause Shoot-Through Between Channels During Paralleling
Copyright © 2012–2013, Texas Instruments Incorporated
Submit Documentation Feedback
19
Product Folder Links: UCC27527 UCC27528
UCC27527
UCC27528
SLUSBD0B –DECEMBER 2012–REVISED JANUARY 2013
www.ti.com
Drive Current and Power Dissipation
The UCC27527 and UCC27528 family of drivers are capable of delivering 5-A of current to a MOSFET gate for a
period of several hundred nanoseconds at VDD = 12 V. High peak current is required to turn the device ON
quickly. Then, to turn the device OFF, the driver is required to sink a similar amount of current to ground. This
repeats at the operating frequency of the power device. The power dissipated in the gate driver device package
depends on the following factors:
•
Gate charge required of the power MOSFET (usually a function of the drive voltage VGS, which is very close
to input bias supply voltage VDD due to low VOH drop-out)
•
•
Switching frequency
Use of external gate resistors
Since UCC2752x features very low quiescent currents and internal logic to eliminate any shoot-through in the
output driver stage, their effect on the power dissipation within the gate driver can be safely assumed to be
negligible.
When a driver device is tested with a discrete, capacitive load it is a fairly simple matter to calculate the power
that is required from the bias supply. The energy that must be transferred from the bias supply to charge the
capacitor is given by:
1
2
EG
=
CLOADVDD
2
(2)
where is load capacitor and is bias voltage feeding the driver.
There is an equal amount of energy dissipated when the capacitor is charged. This leads to a total power loss
given by the following:
2
LOAD DD SW
P
= C
V
f
G
(3)
where fSW is the switching frequency.
With VDD = 12 V, CLOAD = 10 nF and ƒSW = 300 kHz the power loss can be calculated as:
2
= 10nF´12V ´300kHz = 0.432W
P
G
(4)
20
Submit Documentation Feedback
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: UCC27527 UCC27528
UCC27527
UCC27528
www.ti.com
SLUSBD0B –DECEMBER 2012–REVISED JANUARY 2013
The switching load presented by a power MOSFET can be converted to an equivalent capacitance by examining
the gate charge required to switch the device. This gate charge includes the effects of the input capacitance plus
the added charge needed to swing the drain voltage of the power device as it switches between the ON and OFF
states. Most manufacturers provide specifications that provide the typical and maximum gate charge, in nC, to
switch the device under specified conditions. Using the gate charge Qg, one can determine the power that must
be dissipated when charging a capacitor. This is done by using the equivalence Qg = CLOADVDD to provide the
following equation for power:
2
LOAD DD SW
P
= C
V
f
= Q V f
g DD SW
G
(5)
Assuming that UCC2752x is driving power MOSFET with 60 nC of gate charge (Qg = 60 nC at VDD = 12 V) on
each output, the gate charge related power loss can be calculated as:
P
= 2x60nC´12V ´300kHz = 0.432W
G
(6)
This power PG is dissipated in the resistive elements of the circuit when the MOSFET is being turned-on or off.
Half of the total power is dissipated when the load capacitor is charged during turn-on, and the other half is
dissipated when the load capacitor is discharged during turn-off. When no external gate resistor is employed
between the driver and MOSFET/IGBT, this power is completely dissipated inside the driver package. With the
use of external gate drive resistors, the power dissipation is shared between the internal resistance of driver and
external gate resistor in accordance to the ratio of the resistances (more power dissipated in the higher
resistance component). Based on this simplified analysis, the driver power dissipation during switching is
calculated as follows:
æ
ç
è
ö
÷
ø
R
R
ON
OFF
P
= Q ´ VDD´ f ´
SW
+
SW
G
R
+ R
R
+ R
ON GATE
OFF
GATE
(7)
where ROFF = ROL and RON (effective resistance of pull-up structure) = 1.5 x ROL
.
In addition to the above gate charge related power dissipation, additional dissipation in the driver is related to the
power associated with the quiescent bias current consumed by the device to bias all internal circuits such as
input stage (with pull-up and pull-down resistors), enable, and UVLO sections. Referring to the Figure 9 it can be
seen that the quiescent current is less than 0.6 mA even in the highest case. The quiescent power dissipation
can be simply calculated as:
P
= I
V
Q
DD DD
(8)
Assuming , IDD = 6 mA, the power loss is:
= 0.6 mA ´12V = 7.2mW
P
Q
(9)
Clearly, this is insignificant compared to gate charge related power dissipation calculated earlier.
With a 12-V supply, the bias current can be estimated as follows, with an additional 0.6-mA overhead for the
quiescent consumption:
P
0.432 W
G
I
~
=
= 0.036 A
DD
V
12 V
DD
(10)
Copyright © 2012–2013, Texas Instruments Incorporated
Submit Documentation Feedback
21
Product Folder Links: UCC27527 UCC27528
UCC27527
UCC27528
SLUSBD0B –DECEMBER 2012–REVISED JANUARY 2013
www.ti.com
Thermal Information
The useful range of a driver is greatly affected by the drive power requirements of the load and the thermal
characteristics of the device package. In order for a gate driver device to be useful over a particular temperature
range the package must allow for the efficient removal of the heat produced while keeping the junction
temperature within rated limits. The UCC27527 and UCC27528 family of drivers is available in two different
packages to cover a range of application requirements. The thermal metrics for each of these packages are
summarized in the Thermal Information section of the datasheet. For detailed information regarding the thermal
information table, please refer to Application Note from Texas Instruments entitled, "IC Package Thermal Metrics"
(Texas Instrument's Literature Number SPRA953A).
Among the different package options available in the UCC2752x family, of particular mention is the DSD package
when it comes to power dissipation capability. The 3-mm x 3-mm WSON (DSD) package offer a means of
removing the heat from the semiconductor junction through the exposed thermal pad at the base of the package.
This pad is soldered to the copper on the printed circuit board directly underneath the device package, reducing
the thermal resistance to a very low value. This allows a significant improvement in heat-sinking over that
available in the D package. The printed circuit board must be designed with thermal lands and thermal vias to
complete the heat removal subsystem. Note that the exposed pads in the WSON-8 package is not directly
connected to any leads of the package. However, it is electrically and thermally connected to the substrate of the
device which is the ground of the device. It is recommended to externally connect the exposed pads to GND in
PCB layout for better EMI immunity.
22
Submit Documentation Feedback
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: UCC27527 UCC27528
UCC27527
UCC27528
www.ti.com
SLUSBD0B –DECEMBER 2012–REVISED JANUARY 2013
PCB Layout
Proper PCB layout is extremely important in a high current, fast switching circuit to provide appropriate device
operation and design robustness. The UCC27527 and UCC27528 family of gate drivers incorporates short
propagation delays and powerful output stages capable of delivering large current peaks with very fast rise and
fall times at the gate of power MOSFET to facilitate voltage transitions very quickly. At higher VDD voltages, the
peak current capability is even higher (5-A peak current is at VDD = 12 V). Very high di/dt can cause
unacceptable ringing if the trace lengths and impedances are not well controlled. The following circuit layout
guidelines are strongly recommended when designing with these high-speed drivers.
•
Locate the driver device as close as possible to power device in order to minimize the length of high-current
traces between the Output pins and the Gate of the power device.
•
Locate the VDD bypass capacitors between VDD and GND as close as possible to the driver with minimal
trace length to improve the noise filtering. These capacitors support high peak current being drawn from VDD
during turn-on of power MOSFET. The use of low inductance SMD components such as chip resistors and
chip capacitors is highly recommended.
•
The turn-on and turn-off current loop paths (driver device, power MOSFET and VDD bypass capacitor) should
be minimized as much as possible in order to keep the stray inductance to a minimum. High dI/dt is
established in these loops at 2 instances – during turn-on and turn-off transients, which will induce significant
voltage transients on the output pin of the driver device and Gate of the power MOSFET.
•
•
•
Wherever possible parallel the source and return traces, taking advantage of flux cancellation
Separate power traces and signal traces, such as output and input signals.
Star-point grounding is a good way to minimize noise coupling from one current loop to another. The GND of
the driver should be connected to the other circuit nodes such as source of power MOSFET, ground of PWM
controller etc at one, single point. The connected paths should be as short as possible to reduce inductance
and be as wide as possible to reduce resistance.
•
•
Use a ground plane to provide noise shielding. Fast rise and fall times at OUT may corrupt the input signals
during transition. The ground plane must not be a conduction path for any current loop. Instead the ground
plane must be connected to the star-point with one single trace to establish the ground potential. In addition
to noise shielding, the ground plane can help in power dissipation as well
In noisy environments, it may be necessary to tie inputs of an unused channel of UCC27527 to VDD (in case
of INx+) or GND (in case of INX-) using short traces in order to ensure that the output is enabled and to
prevent noise from causing malfunction in the output.
REVISION HISTORY
Changes from Original (December 2012) to Revision A
Page
•
•
•
•
Changed marketing status from Product Preview to Final. .................................................................................................. 1
Added note to packaging section, "DSD package is rated MSL level 2". ............................................................................. 2
Changed ENA, ENB voltage from (-6.5 V to 20) to (-0.3 to 20). .......................................................................................... 2
Changed Enable voltage, ENA and ENB min value from -5 V to 0 V. ................................................................................. 3
Changes from Revision A (December 2012) to Revision B
Page
•
Changed Feature bullet from "-5-V Negative Voltage Handling Capability on Input and Enable Pins" to -5-V
Negative Voltage Handling Capability on Input Pins" ........................................................................................................... 1
Copyright © 2012–2013, Texas Instruments Incorporated
Submit Documentation Feedback
23
Product Folder Links: UCC27527 UCC27528
PACKAGE OPTION ADDENDUM
www.ti.com
24-Jan-2013
PACKAGING INFORMATION
Orderable Device
UCC27528D
Status Package Type Package Pins Package Qty
Eco Plan Lead/Ball Finish
MSL Peak Temp
Op Temp (°C)
Top-Side Markings
Samples
Drawing
(1)
(2)
(3)
(4)
ACTIVE
SOIC
SOIC
SON
SON
D
8
8
8
8
75
Green (RoHS
& no Sb/Br)
CU NIPDAU
CU NIPDAU
CU NIPDAU
CU NIPDAU
Level-1-260C-UNLIM
Level-1-260C-UNLIM
Level-2-260C-1 YEAR
Level-2-260C-1 YEAR
-40 to 140 27528
-40 to 140 27528
-40 to 140 27528
-40 to 140 27528
UCC27528DR
ACTIVE
PREVIEW
PREVIEW
D
2500
3000
250
Green (RoHS
& no Sb/Br)
UCC27528DSDR
UCC27528DSDT
DSD
DSD
Green (RoHS
& no Sb/Br)
Green (RoHS
& no Sb/Br)
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4) Only one of markings shown within the brackets will appear on the physical device.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
24-Jan-2013
Addendum-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
26-Jan-2013
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
B0
K0
P1
W
Pin1
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant
(mm) W1 (mm)
UCC27528DR
SOIC
D
8
2500
330.0
12.4
6.4
5.2
2.1
8.0
12.0
Q1
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
26-Jan-2013
*All dimensions are nominal
Device
Package Type Package Drawing Pins
SOIC
SPQ
Length (mm) Width (mm) Height (mm)
367.0 367.0 35.0
UCC27528DR
D
8
2500
Pack Materials-Page 2
IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other
changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest
issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and
complete. All semiconductor products (also referred to herein as “components”) are sold subject to TI’s terms and conditions of sale
supplied at the time of order acknowledgment.
TI warrants performance of its components to the specifications applicable at the time of sale, in accordance with the warranty in TI’s terms
and conditions of sale of semiconductor products. Testing and other quality control techniques are used to the extent TI deems necessary
to support this warranty. Except where mandated by applicable law, testing of all parameters of each component is not necessarily
performed.
TI assumes no liability for applications assistance or the design of Buyers’ products. Buyers are responsible for their products and
applications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provide
adequate design and operating safeguards.
TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or
other intellectual property right relating to any combination, machine, or process in which TI components or services are used. Information
published by TI regarding third-party products or services does not constitute a license to use such products or services or a warranty or
endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the
third party, or a license from TI under the patents or other intellectual property of TI.
Reproduction of significant portions of TI information in TI data books or data sheets is permissible only if reproduction is without alteration
and is accompanied by all associated warranties, conditions, limitations, and notices. TI is not responsible or liable for such altered
documentation. Information of third parties may be subject to additional restrictions.
Resale of TI components or services with statements different from or beyond the parameters stated by TI for that component or service
voids all express and any implied warranties for the associated TI component or service and is an unfair and deceptive business practice.
TI is not responsible or liable for any such statements.
Buyer acknowledges and agrees that it is solely responsible for compliance with all legal, regulatory and safety-related requirements
concerning its products, and any use of TI components in its applications, notwithstanding any applications-related information or support
that may be provided by TI. Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which
anticipate dangerous consequences of failures, monitor failures and their consequences, lessen the likelihood of failures that might cause
harm and take appropriate remedial actions. Buyer will fully indemnify TI and its representatives against any damages arising out of the use
of any TI components in safety-critical applications.
In some cases, TI components may be promoted specifically to facilitate safety-related applications. With such components, TI’s goal is to
help enable customers to design and create their own end-product solutions that meet applicable functional safety standards and
requirements. Nonetheless, such components are subject to these terms.
No TI components are authorized for use in FDA Class III (or similar life-critical medical equipment) unless authorized officers of the parties
have executed a special agreement specifically governing such use.
Only those TI components which TI has specifically designated as military grade or “enhanced plastic” are designed and intended for use in
military/aerospace applications or environments. Buyer acknowledges and agrees that any military or aerospace use of TI components
which have not been so designated is solely at the Buyer's risk, and that Buyer is solely responsible for compliance with all legal and
regulatory requirements in connection with such use.
TI has specifically designated certain components as meeting ISO/TS16949 requirements, mainly for automotive use. In any case of use of
non-designated products, TI will not be responsible for any failure to meet ISO/TS16949.
Products
Applications
Audio
www.ti.com/audio
amplifier.ti.com
dataconverter.ti.com
www.dlp.com
Automotive and Transportation www.ti.com/automotive
Communications and Telecom www.ti.com/communications
Amplifiers
Data Converters
DLP® Products
DSP
Computers and Peripherals
Consumer Electronics
Energy and Lighting
Industrial
www.ti.com/computers
www.ti.com/consumer-apps
www.ti.com/energy
dsp.ti.com
Clocks and Timers
Interface
www.ti.com/clocks
interface.ti.com
logic.ti.com
www.ti.com/industrial
www.ti.com/medical
Medical
Logic
Security
www.ti.com/security
Power Mgmt
Microcontrollers
RFID
power.ti.com
Space, Avionics and Defense
Video and Imaging
www.ti.com/space-avionics-defense
www.ti.com/video
microcontroller.ti.com
www.ti-rfid.com
www.ti.com/omap
OMAP Applications Processors
Wireless Connectivity
TI E2E Community
e2e.ti.com
www.ti.com/wirelessconnectivity
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2013, Texas Instruments Incorporated
UCC27527DSDR CAD模型
引脚图
封装焊盘图
UCC27527DSDR 替代型号
| 型号 | 制造商 | 描述 | 替代类型 | 文档 |
| UCC27527DSDT | TI | 具有 5V UVLO、使能功能和双 CMOS 输入的 5A/5A 双通道栅极驱动器 | D | 完全替代 |
|
UCC27527DSDR 相关器件
| 型号 | 制造商 | 描述 | 价格 | 文档 |
| UCC27527DSDT | TI | 具有 5V UVLO、使能功能和双 CMOS 输入的 5A/5A 双通道栅极驱动器 | DSD | 8 | -40 to 140 | 获取价格 |
|
| UCC27528 | TI | Dual 5-A High-Speed Low-Side Gate Driver Based on CMOS Input Threshold Logic | 获取价格 |
|
| UCC27528-Q1 | TI | Dual 5-A High-Speed Low-Side Gate Driver Based on CMOS Input Threshold Logic | 获取价格 |
|
| UCC27528-Q1_15 | TI | Dual 5-A High-Speed Low-Side Gate Driver Based on CMOS Input Threshold Logic | 获取价格 |
|
| UCC27528D | TI | Dual 5-A High-Speed Low-Side Gate Driver Based on CMOS Input Threshold Logic | 获取价格 |
|
| UCC27528DR | TI | Dual 5-A High-Speed Low-Side Gate Driver Based on CMOS Input Threshold Logic | 获取价格 |
|
| UCC27528DSDR | TI | Dual 5-A High-Speed Low-Side Gate Driver Based on CMOS Input Threshold Logic | 获取价格 |
|
| UCC27528DSDT | TI | Dual 5-A High-Speed Low-Side Gate Driver Based on CMOS Input Threshold Logic | 获取价格 |
|
| UCC27528QDRQ1 | TI | Dual 5-A High-Speed Low-Side Gate Driver Based on CMOS Input Threshold Logic | 获取价格 |
|
| UCC2752D | ETC | Telephone Ringer | 获取价格 |
|
UCC27527DSDR 相关文章
Nidec交付全球首款4U 250kw CDU，助力英伟达GB200 NVL72高效冷却
- 2024-12-06
- 9
博通推出行业首个3.5D F2F封装技术，将赋能富士通2nm MONAKA处理器
- 2024-12-06
- 9
东方晶源回应被美国商务部列入实体清单：预计对公司影响可控
- 2024-12-06
- 9
台积电与英伟达就美国工厂生产AI芯片展开谈判
- 2024-12-06
- 9
