TPS2817 [TI]
SINGLE-CHANNEL HIGH-SPEED MOSFET DRIVER; 单通道高速MOSFET驱动器
| 型号： | TPS2817 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | SINGLE-CHANNEL HIGH-SPEED MOSFET DRIVER |
| 文件： | 总20页 (文件大小：372K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TPS2816, TPS2817, TPS2818, TPS2819, TPS2828, TPS2829
SINGLE-CHANNEL HIGH-SPEED MOSFET DRIVER
SLVS160A – FEBRUARY 1997 – REVISED NOVEMBER 1997
TPS2816, TPS2817
Low-Cost Single-Channel High-Speed
MOSFET Driver
. . . 15-µA Max (TPS2828, TPS2829)
TPS2818, TPS2819
DBV PACKAGE
(TOP VIEW)
I
CC
25-ns Max Rise/Fall Times and 40-ns Max
Propagation Delay . . . 1-nF Load
1
2
5
V
V
CC
DD
2-A Peak Output Current
GND
IN
4-V to 14-V Driver Supply Voltage Range;
Internal Regulator Extends Range to 40 V
(TPS2816, TPS2817, TPS2818, TPS2819)
3
4
OUT
5-pin SOT-23 Package
TPS2828, TPS2829
DBV PACKAGE
(TOP VIEW)
–40°C to 125°C Ambient-Temperature
Operating Range
Highly Resistant to Latch-ups
1
2
5
NC
V
CC
description
GND
IN
The TPS28xx single-channel high-speed MOS-
FET drivers are capable of delivering peak
currents of up to 2 A into highly capacitive loads.
3
4
OUT
High switching speeds (t and t = 14 ns typ) are
obtained with the use of BiCMOS outputs. Typical
threshold switching voltages are 2/3 and 1/3 of
r
f
NC – No internal connection
V
. The design inherently minimizes shoot-
CC
through current.
A regulator is provided on TPS2816 through TPS2819 devices to allow operation with supply inputs between
14 V and 40 V. The regulator output can be used to power other circuits, provided power dissipation does not
exceed package limitations. If the regulator is not required, V
(the regulator input) should be connected to
DD
V
. The TPS2816 and TPS2817 input circuits include an active pullup circuit to eliminate the need for an
CC
external resistor when using open-collector PWM controllers. The TPS2818 and TPS2819 are identical to the
TPS2816 and TPS2817, except that the active pullup circuit is omitted. The TPS2828 and TPS2829 are
identical to the TPS2818 and TPS2819, except that the internal voltage regulator is omitted, allowing quiescent
current to drop to less than 15 µA when the inputs are high or low.
The TPS28xx series devices are available in 5-pin SOT-23 (DBV) packages and operate over an ambient
temperature range of –40 C to 125 C.
AVAILABLE OPTIONS
PACKAGED DEVICES
SOT-23–5 (DBV)
TPS2816DBV
CHIP FORM
(Y)
T
FUNCTION
A
Inverting driver with active pullup input
Noninverting driver with active pullup input
Inverting driver
TPS2816Y
TPS2817Y
TPS2818Y
TPS2819Y
TPS2828Y
TPS2829Y
TPS2817DBV
TPS2818DBV
–40°C to 125°C
Noninverting driver
TPS2819DBV
Inverting driver, no regulator
Noninverting driver, no regulator
TPS2828DBV
TPS2829DBV
The DBV package is available taped and reeled only.
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.
Copyright 1997, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS2816, TPS2817, TPS2818, TPS2819, TPS2828, TPS2829
SINGLE-CHANNEL HIGH-SPEED MOSFET DRIVER
SLVS160A – FEBRUARY 1997 – REVISED NOVEMBER 1997
functional block diagram
TPS2816, TPS2818
TPS2817, TPS2819
VREG
VREG
V
CC
V
CC
V
DD
V
DD
Active Pullup
Active Pullup
(TPS2816 Only)
(TPS2817 Only)
OUT
OUT
IN
IN
GND
GND
TPS2829
TPS2828
V
CC
V
CC
OUT
OUT
IN
IN
GND
GND
INPUT STAGE DIAGRAM
OUTPUT STAGE DIAGRAM
V
CC
V
CC
Predrive
To Drive
Stage
IN
OUT
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS2816, TPS2817, TPS2818, TPS2819, TPS2828, TPS2829
SINGLE-CHANNEL HIGH-SPEED MOSFET DRIVER
SLVS160A – FEBRUARY 1997 – REVISED NOVEMBER 1997
TPS28xxY chip information
This chip, when properly assembled, displays characteristics similar to those of the TPS28xx. Thermal
compression or ultrasonic bonding may be used on the doped aluminum bonding pads. The chip may be
mounted with conductive epoxy or a gold-silicon preform.
BONDING PAD ASSIGNMENTS
(4)
(5)
(4)
(2)
(3)
(5)
(1)
V
OUT
GND
IN
CC
TPS2816Y
†
V
DD
39
†
TPS2816 through TPS2819 only
(2)
(3)
CHIP THICKNESS: 15 TYPICAL
BONDING PADS: 4 × 4 MINIMUM
T
J
max = 150°C
TOLERANCES ARE ±10%.
(1)
ALL DIMENSIONS ARE IN MILS.
39
Terminal Functions
TPS2816, TPS2818, TPS2828 (inverting driver)
TERMINAL
DESCRIPTION
NAME
NO.
1
V
Regulator supply voltage input. (Not connected on TPS2828)
DD
GND
IN
2
Ground
3
Driver input.
OUT
4
Driver output, OUT = IN
V
CC
5
Driver supply voltage/regulator output voltage
TPS2817, TPS2819, TPS2829 (noninverting driver)
TERMINAL
DESCRIPTION
NAME
NO.
1
V
Regulator supply voltage input. (Not connected on TPS2829)
DD
GND
IN
2
Ground
3
Driver input.
OUT
4
Driver output, OUT= IN
V
CC
5
Driver supply voltage/regulator output voltage
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS2816, TPS2817, TPS2818, TPS2819, TPS2828, TPS2829
SINGLE-CHANNEL HIGH-SPEED MOSFET DRIVER
SLVS160A – FEBRUARY 1997 – REVISED NOVEMBER 1997
DISSIPATION RATING TABLE
T
≤ 25°C
DERATING FACTOR
T
= 70°C
T = 80°C
A
A
A
PACKAGE
POWER RATING
ABOVE T = 25°C
POWER RATING POWER RATING
A
DBV
437 mW
3.5 mW/°C
280 mW 227 mW
These dissipation ratings are based upon EIA specification JESD51-3, ”Low Effective Thermal
Conductivity Test Board for Leaded Surface Mount Packages,” in tests conducted in a zero-airflow, wind
tunnel environment.
†
absolute maximum ratings over operating temperature range (unless otherwise noted)
Regulator supply voltage range, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 42 V
DD
Supply voltage range, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 15 V
CC
Input voltage range, IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 15 V
Continuous regulator output current, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 mA
CC
Continuous output current, OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±100 mA
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating ambient temperature range, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to 125°C
Storage temperature range, T
Lead temperature 1,6 mm (1/16inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
. . . . .A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
stg
†
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.
NOTE 1: All voltages are with respect to device GND terminal.
recommended operating conditions
MIN
8
MAX
40
UNIT
V
Regulator input voltage range, V , TPS2816 through TPS2819
DD
Supply voltage, V
Input voltage, IN
4
14
V
CC
–0.3
0
V
V
CC
20
Continuous regulator output current, I
CC
mA
C
Operating ambient temperature range, T
–40
125
A
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS2816, TPS2817, TPS2818, TPS2819, TPS2828, TPS2829
SINGLE-CHANNEL HIGH-SPEED MOSFET DRIVER
SLVS160A – FEBRUARY 1997 – REVISED NOVEMBER 1997
TPS28xx electrical characteristics over recommended operating ambient temperature range,
V
= 10 V, V
tied to V , C = 1 nF (unless otherwise specified)
CC
DD CC L
Inputs
†
PARAMETER
TEST CONDITIONS
= 5 V
MIN TYP
MAX
4
UNIT
V
V
V
V
V
V
3.3
6.6
9.3
1.7
3.3
4.6
1.3
0.2
650
15
CC
CC
CC
CC
CC
CC
Positive-going input threshold voltage
Negative-going input threshold voltage
= 10 V
7
V
= 14 V
10
= 5 V
1
2
= 10 V
V
= 14 V
2.5
Input voltage hysteresis
V
Input current, TPS2818/19/28/29
Input = 0 V or V
Input = 0 V
µA
CC
Input current, TPS2816/17
Input capacitance
µA
Input = V
CC
5
10
pF
†
Typicals are for T = 25°C unless otherwise noted.
A
outputs
†
PARAMETER
High-level output voltage
TEST CONDITIONS
= –1 mA
MIN TYP
MAX
UNIT
I
I
9.75
8
9.9
9.1
O
V
= –100 mA
= 1 mA
O
I
I
0.18
1
0.25
2
O
Low-level output voltage
Typicals are for T = 25°C unless otherwise noted.
V
= 100 mA
O
†
A
regulator, TPS2816 through TPS2819
†
PARAMETER
TEST CONDITIONS
MIN TYP
MAX
UNIT
14 ≤ V
≤ 40 V,
10
11.5
13
DD
0 ≤ I ≤ 20 mA
Output voltage
V
O
I
V
= 10 mA,
8
10
O
Output voltage in dropout
V
= 10 V
DD
†
Typicals are for T = 25°C unless otherwise noted.
A
supply current
†
PARAMETER
TEST CONDITIONS
MIN TYP
MAX
250
UNIT
IN = high = 10 V
IN = low = 0 V
150
650
TPS2816,
TPS2817
1000
TPS2818,
TPS2819
Supply current into V
µA
CC
25
0.1
650
50
50
15
IN = high or low,
High = 10 V, Low = 0 V
TPS2828,
TPS2829
TPS2816,
TPS2817
V
= 20 V,
DD
IN = high = 10 V or low = 0 V
1000
150
Supply current into V
µA
DD
TPS2818,
TPS2819
V
= 20 V,
DD
IN = high = 10 V or low = 0 V
†
Typicals are for T = 25°C unless otherwise noted.
A
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS2816, TPS2817, TPS2818, TPS2819, TPS2828, TPS2829
SINGLE-CHANNEL HIGH-SPEED MOSFET DRIVER
SLVS160A – FEBRUARY 1997 – REVISED NOVEMBER 1997
TPS28xxY electrical characteristics at T = 25 C, V
A
= 10 V, V
tied to V , C = 1 nF
CC
DD
CC
L
(unless otherwise specified)
Inputs
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V
V
V
V
V
V
= 5 V
3.3
6.6
9.3
1.7
3.3
4.6
1.3
0.2
650
15
CC
CC
CC
CC
CC
CC
Positive-going input threshold voltage
Negative-going input threshold voltage
= 10 V
= 14 V
= 5 V
V
= 10 V
= 14 V
V
Input voltage hysteresis
V
Input current, TPS2818/19/28/29
Input = 0 V or V
Input = 0 V
µA
CC
Input current, TPS2816/17
µA
Input = V
CC
Input resistance
1000
5
MΩ
Input capacitance
pF
outputs
PARAMETER
TEST CONDITIONS
MIN
TYP
9.9
MAX
UNIT
I
I
= –1 mA
O
High-level output voltage
Low-level output voltage
V
= –100 mA
9.1
O
I
I
= 1 mA
0.18
1
O
V
= 100 mA
O
regulator, TPS2816 through TPS2819
PARAMETER
TEST CONDITIONS
14 ≤ V ≤ 40 V,
MIN
TYP
MAX
UNIT
Output voltage
11.5
V
DD
0 ≤ I ≤ 20 mA
O
Output voltage in dropout
I
V
= 10 mA,
9
V
O
= 10 V
DD
supply current
PARAMETER
TEST CONDITIONS
IN = high = 10 V
IN = low = 0 V
MIN
TYP
150
650
MAX
UNIT
TPS2816,
TPS2817
TPS2818,
TPS2819
Supply current into V
Supply current into V
µA
CC
DD
25
0.1
650
50
IN = high or low,
High = 10 V, Low = 0 V
TPS2828,
TPS2829
TPS2816,
TPS2817
V
= 20 V,
DD
IN = high = 10 V or low = 0 V
µA
TPS2818,
TPS2819
V
= 20 V,
DD
IN = high = 10 V or low = 0 V
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS2816, TPS2817, TPS2818, TPS2819, TPS2828, TPS2829
SINGLE-CHANNEL HIGH-SPEED MOSFET DRIVER
SLVS160A – FEBRUARY 1997 – REVISED NOVEMBER 1997
switching characteristics for all devices over recommended operating ambient temperature range,
V
= 10 V, V
tied to V , C = 1 nF (unless otherwise specified)
CC
DD CC L
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
25
UNIT
V
V
V
V
V
V
V
V
V
V
= 14 V
= 10 V
= 5 V
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
t
t
t
t
Rise time
Fall time
14
30
ns
r
35
= 14 V
= 10 V
= 5 V
25
14
24
24
30
ns
ns
ns
f
35
= 14 V
= 10 V
= 5 V
40
Propagation delay time, high-to-low-level output
Propagation delay time, low-to-high-level output
45
50
40
PHL
PLH
= 14 V
V
= 10 V
= 5 V
45
50
CC
CC
V
PARAMETER MEASUREMENT INFORMATION
50%
50%
IN
0 V
0 V
t
f
t
r
90%
90%
10%
50%
50%
OUT
10%
t
t
PHL
PLH
Figure 1. Typical Timing Diagram (TPS2816)
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS2816, TPS2817, TPS2818, TPS2819, TPS2828, TPS2829
SINGLE-CHANNEL HIGH-SPEED MOSFET DRIVER
SLVS160A – FEBRUARY 1997 – REVISED NOVEMBER 1997
PARAMETER MEASUREMENT INFORMATION
TPS2816
1
5
4
10 V
4.7 µF
Regulator
+
0.1 µF
2
3
Output
Input
50 Ω
1 nF
Figure 2. Switching Time Test Setup
TPS2816
Current
Loop
V
CC
10 V
+
0.1 µF
4.7 µF
0–10 Vdc
OUT
Figure 3. Shoot-Through Current Test Setup
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS2816, TPS2817, TPS2818, TPS2819, TPS2828, TPS2829
SINGLE-CHANNEL HIGH-SPEED MOSFET DRIVER
SLVS160A – FEBRUARY 1997 – REVISED NOVEMBER 1997
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
Rise time
vs Supply voltage
4
Fall time
vs Supply voltage
5
Propagation time (L>H)
Propagation Time (H>L)
Rise time
vs Supply voltage
6
vs Supply voltage
7
vs Ambient temperature
vs Ambient temperature
vs Supply voltage
8
Fall time
9
Propagation time (L>H)
Propagation time (H>L)
10
11
12
13
14
15
16
17
18
19
vs Ambient temperature
vs Supply voltage
Supply current (V
Supply current (V
Supply current (V
)
)
)
CC
CC
CC
vs Load capacitance
vs Ambient temperature
vs Supply voltage
Input threshold voltage
Regulator output voltage
Regulator quiescent current
Shoot-through current
Shoot-through current
vs Regulator supply voltage
vs Regulator supply voltage
vs Input voltage (L>H)
vs Input voltage (H>L)
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS2816, TPS2817, TPS2818, TPS2819, TPS2828, TPS2829
SINGLE-CHANNEL HIGH-SPEED MOSFET DRIVER
SLVS160A – FEBRUARY 1997 – REVISED NOVEMBER 1997
TYPICAL CHARACTERISTICS
RISE TIME
vs
FALL TIME
vs
SUPPLY VOLTAGE
SUPPLY VOLTAGE
35
30
30
25
20
15
10
5
T
= 25°C
A
T = 25°C
A
C
= 2200 pF
L
25
20
C
= 2200 pF
= 1000 pF
L
15
10
5
C
L
C = 1000 pF
L
C
= 0
L
C
= 0
L
0
0
4
6
8
10
12
14
4
6
8
10
12
14
V
CC
– Supply Voltage – V
V
CC
– Supply Voltage – V
Figure 4
Figure 5
PROPAGATION DELAY TIME,
LOW-TO-HIGH-LEVEL OUTPUT
vs
PROPAGATION DELAY TIME,
HIGH-TO-LOW-LEVEL OUTPUT
vs
SUPPLY VOLTAGE
SUPPLY VOLTAGE
40
35
40
35
30
25
T
= 25°C
A
T
= 25°C
A
C
= 2200 pF
L
30
25
20
C
= 2200 pF
L
20
15
10
C
= 1000 pF
L
15
10
C
= 1000 pF
L
C
= 0
L
C
= 0
L
5
0
5
0
4
6
8
10
12
14
4
6
8
10
12
14
V
CC
– Supply Voltage – V
V
CC
– Supply Voltage – V
Figure 6
Figure 7
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS2816, TPS2817, TPS2818, TPS2819, TPS2828, TPS2829
SINGLE-CHANNEL HIGH-SPEED MOSFET DRIVER
SLVS160A – FEBRUARY 1997 – REVISED NOVEMBER 1997
TYPICAL CHARACTERISTICS
RISE TIME
vs
FALL TIME
vs
AMBIENT TEMPERATURE
AMBIENT TEMPERATURE
19
18
17
20
19
18
V
= 10 V
V
= 10 V
CC
CC
Load = 1000 pF
f = 100 kHz
Load = 1000 pF
f = 100 kHz
17
16
15
14
16
15
14
13
13
12
11
10
–50
–25
0
25
50
75
100
125
–50 –25
0
25
50
75
100
125
Ambient Temperature – °C
Ambient Temperature – °C
Figure 8
Figure 9
PROPAGATION DELAY TIME,
PROPAGATION DELAY TIME,
LOW-TO-HIGH-LEVEL OUTPUT
HIGH-TO-LOW-LEVEL OUTPUT
vs
vs
SUPPLY VOLTAGE
AMBIENT TEMPERATURE
19
18
17
20
19
18
V
= 10 V
CC
V
= 10 V
CC
Load = 1000 pF
f = 100 kHz
Load = 1000 pF
f = 100 kHz
17
16
15
14
13
12
11
10
16
15
14
13
–50 –25
0
25
50
75
100
125
–50 –25
0
25
50
75
100
125
T
A
– Ambient Temperature – °C
T
A
– Ambient Temperature – °C
Figure 10
Figure 11
11
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS2816, TPS2817, TPS2818, TPS2819, TPS2828, TPS2829
SINGLE-CHANNEL HIGH-SPEED MOSFET DRIVER
SLVS160A – FEBRUARY 1997 – REVISED NOVEMBER 1997
TYPICAL CHARACTERISTICS
SUPPLY CURRENT
vs
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
LOAD CAPACITANCE
16
4
3.5
3
V
= 10 V
CC
Load = 1000 pF
f = 100 kHz
Duty Cycle = 50%
14 Duty Cycle = 50%
f = 1 MHz
12
10
8
2.5
2
f = 500 kHz
6
1.5
1
4
f = 40 kHz
f = 100 kHz
2
0
0.5
0
4
6
8
10
12
14
0
1000
2000
V
CC
– Supply Voltage – V
C
– Load Capacitance – pF
L
Figure 12
Figure 13
SUPPLY CURRENT
vs
INPUT THRESHOLD VOLTAGE
vs
AMBIENT TEMPERATURE
SUPPLY VOLTAGE
3
9
8
V
= 10 V
CC
Load = 1000 pF
f = 100 kHz
Duty Cycle = 50%
7
6
5
4
3
2.5
Positive Going
2
1.5
1
Negative Going
2
1
0
–50
–25
0
25
50
75
100
125
4
6
8
10
12
14
T
A
– Ambient Temperature – °C
V
CC
– Supply Voltage – V
Figure 14
Figure 15
12
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS2816, TPS2817, TPS2818, TPS2819, TPS2828, TPS2829
SINGLE-CHANNEL HIGH-SPEED MOSFET DRIVER
SLVS160A – FEBRUARY 1997 – REVISED NOVEMBER 1997
TYPICAL CHARACTERISTICS
REGULATOR OUTPUT VOLTAGE
REGULATOR QUIESCENT CURRENT
vs
REGULATOR SUPPLY VOLTAGE
vs
REGULATOR SUPPLY VOLTAGE
12
11
670
665
TPS2816,17 only
No Load
660
655
10
9
650
645
640
8
7
635
630
6
Load = 10 kΩ
5
625
620
4
4
8
12
16
20 24
28
32
36 40
4
8
12
16
20
24 28
32
36
40
V
DD
– Regulator Supply Voltage – V
V
DD
– Regulator Supply Voltage – V
Figure 16
Figure 17
SHOOT-THROUGH CURRENT
vs
INPUT VOLTAGE LOW-TO-HIGH
SHOOT-THROUGH CURRENT
vs
INPUT VOLTAGE HIGH-TO-LOW
7
7
V
= 10 V
V
= 10 V
CC
CC
No Load
No Load
6
5
6
5
4
3
T
A
= 25°C
T
A
= 25°C
4
3
2
2
1
0
1
0
0
2
4
6
8
10
0
2
4
6
8
10
V – Input Voltage – V
I
V – Input Voltage – V
I
Figure 18
Figure 19
13
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS2816, TPS2817, TPS2818, TPS2819, TPS2828, TPS2829
SINGLE-CHANNEL HIGH-SPEED MOSFET DRIVER
SLVS160A – FEBRUARY 1997 – REVISED NOVEMBER 1997
APPLICATION INFORMATION
MOSFETs are voltage-driven devices that require very little steady-state drive current. However, the large input
capacitance (200 pF to 3000 pF or greater) of these devices requires large current surges to reduce the turn-on
and turn-off times. The TPS2816 series of high-speed drivers can supply up to 2 A to a MOSFET, greatly
reducing the switching times. The fast rise times and fall times and short propagation delays allow for operation
in today’s high-frequency switching converters.
In addition, MOSFETs have a limited gate-bias voltage range, usually less than 20 V. The TPS2816 series of
drivers extends this operating range by incorporating an on-board series regulator with an input range up to 40 V.
This regulator can be used to power the drivers, the PWM chip, and other circuitry, providing the power
dissipation rating is not exceeded.
When using these devices, care should be exercised in the proper placement of the driver, the switching
MOSFET, and the bypass capacitor. Because of the large input capacitance of the MOSFET, the driver should
be placed close to the gate to eliminate the possibility of oscillations caused by trace inductance ringing with
the gate capacitance of the MOSFET. When the driver output path is longer than approximately 2 inches, a
resistor in the range of 10 Ω should be placed in series with the gate drive as close as possible to the MOSFET.
A ceramic bypass capacitor is also recommended to provide a source for the high-speed current transients that
the MOSFET requires. This capacitor should be placed between V
and 21).
and GND of the driver (see Figures 20
CC
TPS2816
V
CC
1
5
4
Regulator
Load
2
3
0.1 µF
Input
Figure 20. V
< 14 V
CC
TPS2816
V
DD
1
5
Regulator
+
Load
0.1 µF
2
3
4.7 µF
4
Input
Figure 21. V
> 14 V
CC
14
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS2816, TPS2817, TPS2818, TPS2819, TPS2828, TPS2829
SINGLE-CHANNEL HIGH-SPEED MOSFET DRIVER
SLVS160A – FEBRUARY 1997 – REVISED NOVEMBER 1997
APPLICATION INFORMATION
The on-board series regulator supplies approximately 20 mA of current at 11.5 V, some of which can be used
for external circuitry, providing the power dissipation rating for the driver is not exceeded. When using the
on-board series regulator, an electrolytic output capacitor of 4.7 µF or larger is recommended. Although not
required, a 0.1-µF ceramic capacitor on the input of the regulator can help suppress transient currents (see
Figure 22). When not used, the regulator should be connected to V . Grounding V
of the regulator.
will result in destruction
CC
DD
34 VDC
0.1 µF
+
0.1 µF
4.7 µF
V
CC
TPS2816
PWM
Controller
1
5
Regulator
0.1 µF
2
V
O
3
4
Out
10 µF
GND
Figure 22. Boost Application
The TPS2816 and TPS2818 drivers include active pullup circuits on the inputs to eliminate the need for external
pullup resistors when using controllers with open-collector outputs (such as the TL5001). The TPS2817 and
TPS2819 drivers have standard CMOS inputs providing a total device operating current of less than 50 µA. All
devices switch at standard CMOS logic levels of approximately 2/3 V
with positive-going input levels, and
CC
approximately 1/3 V with negative-going input levels. Being CMOS drivers, these devices will draw relatively
CC
largeamountsofcurrent(Approximately5mA)whentheinputsareintherangeofone-halfofthesupplyvoltage.
In normal operation, the driver input is in this range for a very short time. Care should be taken to avoid use of
very low slew-rate inputs, used under normal operating conditions. Although not destructive to the device, slew
rates slower than 0.1 V/µs are not recommended.
The BiCMOS output stage provides high instantaneous drive current to rapidly toggle the power switch, and
very low drop to each rail to ensure proper operation at voltage extremes.
Low-voltage circuits (less than 14 V) that require very low quiescent currents can use the TPS2828 and
TPS2829 drivers. These drivers use typically 0.2 µA of quiescent current (with inputs high or low). They do not
have the internal regulator or the active pullup circuit, but all other specifications are the same as for the rest
of the family
2.5-V/3.3-V, 3-A application
Figure 23 illustrates the use of the TPS2817 with a TL5001 PWM controller and a TPS1110 in a simple
step-down converter application. The converter operates at 275 kHz and delivers either 2.5 V or 3.3 V
(determined by the value of R6) at 3 A (5 A peak) from a 5-V supply. The bill of materials is provided in
Table 1.
15
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS2816, TPS2817, TPS2818, TPS2819, TPS2828, TPS2829
SINGLE-CHANNEL HIGH-SPEED MOSFET DRIVER
SLVS160A – FEBRUARY 1997 – REVISED NOVEMBER 1997
APPLICATION INFORMATION
Q1
L1
TPS1110D
V
O
4.5 V to 7 V
+
3 A Continuous
5 A Peak
C7
C8
R5
U1
TPS2817DBV
+
+
CR1
C9
C10 C12 C13
1
2
5
Regulator
C5
GND
3
4
R4
GND
R7
C11
C6
+
U2
TL5001CD
1
5
OUT
SCP
R6
2
8
V
CC
GND
DTC COMP
FB
4
RT
7
6
3
C9
R3
R1
C2
C3
R2
C4
Figure 23. Step-Down Application
16
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS2816, TPS2817, TPS2818, TPS2819, TPS2828, TPS2829
SINGLE-CHANNEL HIGH-SPEED MOSFET DRIVER
SLVS160A – FEBRUARY 1997 – REVISED NOVEMBER 1997
APPLICATION INFORMATION
Table 1. Bill of Materials
REF DES
PART NO.
TPS2817DBV
TL5001CD
DESCRIPTION
MFR
U1
U2
Q1
IC, MOSFET driver, single noninverting
IC, PWM controller
TI
TI
TI
TPS1110D
MOSFET, p-channel, 6 A, 7 V, 75 mΩ
Capacitor, ceramic, 0.1 µF, 50 V, X7R, 1206
Capacitor, ceramic, 0.033 µF, 50 V, X7R, 1206
Capacitor, ceramic, 2200 pF, 50 V, X7R, 0805
Capacitor, tantalum, 1.0 µF, 16 V, A case
Capacitor, OS-Con, 47 µF, 10 V
C1, C2, C5, C8
C3
C4
C6
ECS-T1CY105R
10SC47M
Panasonic
Sanyo
C7
C9
Capacitor, ceramic, 1000 pF, 50 V, X7R, 0805
Capacitor, OS-Con, 220 µF, 10 V
C10, C12
C11
C13
CR1
L1
10SA220M
Sanyo
Capacitor, ceramic, 0.022 µF, 50 V, X7R, 0805
Capacitor, ceramic, 47 µF, 50 V, X7R
Diode, Shottky, D-pak, 5 A 30 V
50WQ03F
SML3723
IR
Inductor, 27 µH, +/– 20%, 3 A
Nova Magnetics
R1
Resistor, CF, 47 kΩ, 1/10 W, 5%, 0805
Resistor, CF, 1.5 kΩ, 1/10 W, 5%, 0805
Resistor, MF, 30.1 kΩ, 1/10 W, 1%, 0805
Resistor, MF, 1.00 kΩ, 1/10 W, 1%, 0805
Resistor, CF, 47 Ω, 1/10 W, 5%, 0805
Resistor, MF, 2.32 kΩ, 1/10 W, 1%, 0805
Resistor, MF, 1.50 kΩ, 1/10 W, 1%, 0805
Resistor, CF, 100 Ω, 1/10 W, 5%, 0805
R2
R3
R4
R5
R6 (3.3-V)
R6 (2.5-V)
R7
As shown in Figures 24 and 25, the TPS2817 turns on the TPS1110 power switch in less than 20 ns and off in
25 ns.
2 V/div
Q1 Drain
Q1 Gate
Q1 Gate
Q1 Drain
2 V/div
2 V/div
2 V/div
12.5 ns/div
12.5 ns/div
Figure 24. Q1 Turn-On Waveform
Figure 25. Q1 Turn-Off Waveform
17
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS2816, TPS2817, TPS2818, TPS2819, TPS2828, TPS2829
SINGLE-CHANNEL HIGH-SPEED MOSFET DRIVER
SLVS160A – FEBRUARY 1997 – REVISED NOVEMBER 1997
APPLICATION INFORMATION
The efficiency for various output currents, with a 5.25-V input, is shown in Figure 26. For a 3.3-V output, the
efficiency is greater than 90% for loads up to 2 A – exceptional for a simple, inexpensive design.
95
V = 5.25 V
I
A
T
= 25°C
V
O
= 3.3 V
90
85
80
V
O
= 2.5 V
75
70
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Load Current – A
Figure 26. Converter Efficiency
18
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TPS2816, TPS2817, TPS2818, TPS2819, TPS2828, TPS2829
SINGLE-CHANNEL HIGH-SPEED MOSFET DRIVER
SLVS160A – FEBRUARY 1997 – REVISED NOVEMBER 1997
MECHANICAL DATA
DBV (R-PDSO-G5)
PLASTIC SMALL-OUTLINE PACKAGE
0,40
0,20
0,95
5
M
0,25
4
0,15 NOM
1,80
1,50
3,00
2,50
1
3
Gage Plane
3,10
2,70
0,25
0°–8°
Seating Plane
0,10
1,30
1,00
0,05 MIN
4073253-4/B 11/96
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions include mold flash or protrusion.
19
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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