AP1212LS-U [DIODES]
Power Management Circuit;
| 型号： | AP1212LS-U |
| 厂家： | 
DIODES INCORPORATED |
| 描述： | Power Management Circuit 开关 电源开关 |
| 文件： | 总12页 (文件大小：278K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AP1212
DUAL USB HIGH-SIDE POWER SWITCH
General Description
Features
The AP1212 series are dual integrated high-side power switch
with independent enable and flag functions, optimized for
self-powered and bus-powered Universal Serial Bus (USB)
applications. The AP1212 series support the following USB
requirements: each switch channel supplies up to 500mA as
required by USB downstream devices; the switch’s low
on-resistance meets USB voltage drop requirements; fault
current is limited to typically 1000mA, well below the UL 25VA
safety requirements; and a flag output is available to indicate fault
conditions to the local USB controller. Soft start eliminates the
momentary voltage drop on the upstream port that may occur
when the switch is enabled in bus-powered applications.
Additional features include thermal shutdown to prevent
catastrophic switch failure from high-current loads, under voltage
lockout (UVLO) to ensure that the device remains off unless there
is a valid input voltage present, and 3.3V and 5V logic compatible
enable inputs.
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Compliant to USB specifications
Dual independent switches control
2.7V to 5.5V input voltage
500mA minimum continuous current per port
110mΩ typical on-resistance
1.25A maximum short circuit current limit
Independent open-drain fault flag pins
110μA typical on-state supply current
1μA typical off-state supply current
Output can be forced higher than input (off-state)
Thermal shutdown
2.4V typical under voltage lockout (UVLO)
1ms turn-on (soft-start) and fast turn-off
Enable active-high (H) or active-low (L)
SOP-8L: Available in “Green” Molding Compound
(No Br, Sb)
•
Lead Free Finish/RoHS Compliant (Note 1)
Applications
•
•
•
USB hubs
Hot plug-in power supplies
Battery-charger circuits
Ordering Information
A P 1 2 1 2 X
X X X
Packing
Package
:
Enable
Lead Free
L : Lead Free
G : Green
U
Active -High
Active - Low
:
:
:
-
Tube
H
L
S
SOP-8L
-13 Taping
:
Note:
1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Tube
13” Tape and Reel
Device
(Note 3)
Package
Code
Packaging
Part Number
Part Number
Suffix
Quantity
Quantity
Suffix
S
SOP-8L
100
-U
2500/Tape & Reel
-13
AP1212XS
Note:
2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be on found our website at
http://www.diodes.com/datasheets/ap02001.pdf.
AP1212 Rev. 2
1 of 12
FEBRUARY 2007
www.diodes.com
© Diodes Incorporated
AP1212
DUAL USB HIGH-SIDE POWER SWITCH
Pin Assignments
(Top View)
EN1
1
8 OUT1
7 IN
FLG1 2
FLG2 3
AP1212
GND
6
5
EN2
4
OUT2
SOP-8L
Pin Descriptions
Name
Description
Enable: Logic-compatible enable
input. ( H: active high, L: active low).
Do not float.
EN1
EN2
Fault Flag: Active-low, open-drain
output. Indicates over current,
UVLO, and thermal shutdown.
FLG1
FLG2
GND
IN
Supply return.
Supply Input: Output MOSFET drain.
Also supplies IC’s internal circuitry.
Connect to positive supply.
Switch Output: Output MOSFET
source. Typically connect to
switched side of load.
OUT1
OUT2
AP1212 Rev. 2
2 of 12
FEBRUARY 2007
www.diodes.com
© Diodes Incorporated
AP1212
DUAL USB HIGH-SIDE POWER SWITCH
Block Diagram
OUT1
FLG1
EN1
Driver
Current
CS
Charge
Pump
Limit
Thermal
Shutdown
IN
UVLO
Current
Limit
Charge
Pump
CS
EN2
FLG2
Driver
OUT2
Absolute Maximum Ratings (Note 3)
Symbol
VIN
VFLG
IFLG
VOUT
VEN
TST
ESD HBM
ESD MM
Parameter
Supply Voltage
Fault Flag Voltage
Fault Flag Current
Output Voltage
Control Input Range
Storage Temperature
Note 3
Rating
+7
+7
50
+7
Unit
V
V
mA
V
V
°C
V
V
–0.3 to VIN +2
-65 to +150
500
Note 3
150
AP1212 Rev. 2
3 of 12
www.diodes.com
FEBRUARY 2007
© Diodes Incorporated
AP1212
DUAL USB HIGH-SIDE POWER SWITCH
Operating Ratings (Note 4)
Symbol
Parameter
Rating
Unit
V
VIN
Supply Voltage
+2.7 to +5.5
TOP
ΘJA
ΘJC
Operating Junction Temperature
Thermal Resistance SOP Junction to Ambient
Thermal Resistance SOP Junction to Case
-40 to +125
165
°C
°C/W
°C/W
26
Note: 3. Exceeding the absolute maximum rating may damage the device.
4. The device is not guaranteed to function outside its operating rating.
o
Electrical Characteristics(Under the conditions of VIN =+5V and TA =25 C, unless otherwise specified)
Symbol
Parameter
Supply Current
Conditions
Switch off, OUT = open (Note 6)
All switches on, OUT = open
(Note 6)
Min.
Typ.
0.50
Max.
5
Unit
µA
ICC
110
160
µA
VIT
IEN
CEN
Enable Input Threshold
Enable Input Current
Enable Input Capacitance
(Note 6)
VEN = 0V to 5.5V
0.8
-1
1.7
±0.01
1
2.40
1
V
µA
pF
VIN = 2.7V ~ 5.5V, IOUT
500mA, each switch
=
RDS(ON)
Switch Resistance
110
140
mΩ
TOND
TR
TOFFD
TF
ILEAK
IOUT
Output Turn-On Delay
Output Turn-On Rise Time
Output Turnoff Delay
Output Turnoff Fall Time
Output Leakage Current
Continuous Load Current
30
1
0.5
0.5
µS
mS
µS
µS
µA
A
RL = 10Ω each output
RL = 10Ω each output
RL = 10Ω each output
RL = 10Ω each output
Each output (output disabled)
Each output
10
10
10
0.6
0.8
Each output (enable into load),
IOS
Short-circuit Current Limit
Current-Limit Threshold
1.0
1.2
1.25
1.4
A
A
VOUT = 0V
Ramped load applied to
enabled output
ILIM
1.0
TJ increasing
TJ decreasing
140
130
°C
°C
Over-temperature
Shutdown Threshold
TTS
VIN = 5V, IL = 10mA
VIN = 3.3V, IL = 10mA
VFLAG = 5V
VIN = increasing
VIN = decreasing
10
15
0.01
2.5
2.3
25
40
1
Error Flag Output
Resistance
Ω
Ω
µA
V
V
RFO
IFOH
Error Flag Off Current
UVLO
UVLO Threshold
Note: 5. Devices are ESD sensitive. Handling precautions are recommended. Human Body model, tested per JEDEC 22-A114.
Machine model, tested per JEDEC 22-A115.
6. Off is VEN≦0.8V and on is VEN≧2.4V for the AP1212H. Off is VEN≧2.4V and on is VEN≦0.8V for the AP1212L.
AP1212 Rev. 2
4 of 12
FEBRUARY 2007
www.diodes.com
© Diodes Incorporated
AP1212
DUAL USB HIGH-SIDE POWER SWITCH
Typical Performance Characteristics
On-Resistance vs. Temperature
On-Resistance vs. SupplyVoltage
160
150
140
130
120
116
112
108
104
120
VSUPPLY=5V
110
VSUPPLY=3.3V
100
100
RL=10ohm
90
RL=10ohm
80
T=25℃
96
70
60
92
88
-
-
20
2
2.5
3.0
3.5
4.0
4.5
5.0
5.5
40
0
0
40
60
80
100
TEMPERATURE (O
)
(V)
SUPPLY VOLTAGE
C
Turn-On Rise Time vs. SupplyVoltage
Turn-On Rise Time vs. Temperature
1.4
1.2
1.4
1.2
1.0
SUPPLY
V
=5V
1.0
0.8
OC
85
-40O
C
0.8
0.6
OC
25
VSUPPLY=3.3V
0.6
0.4
0.2
0.0
0.4
0.2
0.0
RL=10ohm
CL=47uF
RL=10ohm
CL=47 uF
-40
-20
0
20
40
60
C)
80
100
5.5
2.5
3.0
3.5
4.0
4.5
5.0
TEMPERATURE (O
SUPPLY VOLTAGE (V)
On-Current vs. Temperature
On-Current vs. Supply Voltage
220
200
180
160
140
120
100
80
200
180
160
140
120
100
80
25OC
V
SUPPLY=5V
-40OC
85OC
60
60
=3.3V
VSUPPLY
40
40
20
20
0
0
-40
-20
0
20
40
60
80
100
2.5
3.0
3.5
4.0
4.5
5.0
5.5
O
SUPPLY VOLTAGE (V)
TEMPERATURE (C)
AP1212 Rev. 2
5 of 12
FEBRUARY 2007
www.diodes.com
© Diodes Incorporated
AP1212
DUAL USB HIGH-SIDE POWER SWITCH
Typical Performance Characteristics (Continued)
Off-Current vs. Temperature
Off-Current vs. Supply Voltage
350
300
250
200
150
100
50
350
300
250
200
150
100
50
85OC
VSUPPLY=5V
VSUPPLY=3.3V
25OC
0
0
-40OC
-50
-40
-50
2.5
-20
0
20
40
60
80
100
3.0
3.5
4.0
4.5
5.0
5.5
SUPPLY VOLTAGE (V)
TEMPERATURE (OC)
Enable Threshold vs. Supply Voltage
Enable Threshold vs. Temperature
2.0
1.8
1.6
1.4
1.2
1.0
2.0
1.8
1.6
1.4
1.2
1.0
VEN RISING
VEN FALLING
VEN RISING
VEN FALLING
VIN=5V
T=25OC
-40
-20
0
20
40
60
80
100
2.5
3.0
3.5
4.0
4.5
5.0
5.5
SUPPLY VOLTAGE (V)
TEMPERATURE (OC)
Short-Circuit Current-Limit vs. Temperature
Short-Circuit Current-Limit vs. Supply Voltage
1.6
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-40OC
VSUPPLY=5V
25OC
85OC
VSUPPLY=3.3V
2.5
3.0
3.5
4.0
4.5
5.0
5.5
-40
-20
0
20
40
60
80
100
TEMPERATURE (OC)
SUPPLY VOLTAGE (V)
AP1212 Rev. 2
6 of 12
www.diodes.com
FEBRUARY 2007
© Diodes Incorporated
AP1212
DUAL USB HIGH-SIDE POWER SWITCH
Typical Performance Characteristics (Continued)
Current-Limit Threshold vs. Temperature
Current-Limit Threshold vs. Supply Voltage
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-40OC
VSUPPLY=5V
25OC
85OC
VSUPPLY=3.3V
-40
-20
0
20
40
60
80
100
2.5
3.0
3.5
4.0
4.5
5.0
5.5
TEMPERATURE (OC)
SUPPLY VOLTAGE (V)
UVLO Threshold vs. Temperature
3.0
VIN RISING
2.5
2.0
1.5
1.0
0.5
0.0
VIN FALLING
-40
-20
0
20
40
60
80
100
TEMPERATURE (OC)
AP1212 Rev. 2
7 of 12
www.diodes.com
FEBRUARY 2007
© Diodes Incorporated
AP1212
DUAL USB HIGH-SIDE POWER SWITCH
Functional Characteristics
Turn-On/Turn-Off (AP1212H)
Turn-On (AP1212H)
VEN
VIN=5V
VIN=5V
CL=47µF
RL=35Ω
Output Turn-On
CL=47µF
Rise Time
VFLG
RL=35Ω
FLG
140 mA
Inrush Current
VOUT
140 mA
Inrush Current
IOUT
TIME (10mS/div.)
TIME (200µS/div.)
Turn-Off (AP1212H)
Enabled Into Short (AP1212H)
VEN
VIN=5V
CL=47µF
RL=35Ω
VFLG
VIN=5V
VFLG
Short-Circuit Current
VOUT
140 mA
IOUT
TIME (2mS/div.)
TIME (500µS/div.)
Current-Limit Response (AP1212H)
Current-Limit Response (AP1212H)
VEN
VEN
VFLG
VIN=5V
CL=47µF
VIN=5V
CL=47µF
Current-Limit
Threshold
Short-Circuit Current
Current-Limit
Threshold
Short-Circuit Current
VOUT
VOUT
Hysteresis (10OC)
Thermal Shutdown
TIME (50mS/div.)
TIME (20µS/div.)
AP1212 Rev. 2
8 of 12
www.diodes.com
FEBRUARY 2007
© Diodes Incorporated
AP1212
DUAL USB HIGH-SIDE POWER SWITCH
Typical Application Circuit
Power
Supply
Downstream
USB Ports
AP1212
3.3V
5V
D+
D-
7
IN
8
5
ferrite bead
33uF
OUT1
VBUS
GND
0.1uF
0.1uF
ferrite bead
2
1
3
4
FLG1
EN1
USB
Control
D+
D-
FLG2
EN2
ferrite bead
VBUS
GND
OUT2
0.1uF
33uF
GND
6
ferrite bead
Test Circuit
VCC
+5V
10K R1
10K R2
R3>=10
ON
EN1
OUT1
IN
OFF
FLG1
C1
0.1uF
FLG2
EN2
GND
R4>=10
ON
OUT2
OFF
AP1212
AP1212 Rev. 2
9 of 12
FEBRUARY 2007
www.diodes.com
© Diodes Incorporated
AP1212
DUAL USB HIGH-SIDE POWER SWITCH
Function Description
Error Flag
Supply Filtering
An open-drained output of N-channel MOSFET, the FLG
output is pulled low to signal the following fault conditions: input
undervoltage, output current limit, and thermal shutdown.
A 0.1µF to 1µF bypass capacitor from IN to GND, located
near the device, is strongly recommended to control supply
transients. Without a bypass capacitor, an output short may
cause sufficient ringing on the input (from supply lead inductance)
to damage internal control circuitry.
Current Limit
Transient Droop Requirements
The current limit threshold is preset internally. It protects
the output MOSFET switches from damage due to undesirable
short circuit conditions or excess inrush current often
encountered during hot plug-in. The low limit of the current limit
threshold of the AP1212 allows a minimum current of 0.5A
through the MOSFET switches. A current limit condition will
signal the error flag.
USB applications support dynamic attachment (hot plug-in)
of peripherals. A current surge is caused by the input capacitance
of downstream device. Ferrite beads are recommended in series
with all power and ground connector pins. Ferrite beads reduce
EMI and limit the inrush current during hot-attachment by filtering
high-frequency signals.
Thermal Shutdown
Short Circuit Transient
When the chip temperature exceeds 140ºC for any reason
other than over current fault of either one of the two MOSFET
switches, the thermal shutdown function turns off both MOSFET
switches and signals the error flag. A hysteresis of 10ºC prevents
the MOSFETs from turning back on until the chip temperature
drops to below 130ºC.
Bulk capacitance provides the short-term transient current
needed during a hot-attachment event. With a 33µF, 16V
tantalum or 100µF, 10V electrolytic capacitor mounted close to
downstream connector per port should provide transient drop
protection.
Printed Circuit Layout
The power circuitry of USB printed circuit boards requires
a customized layout to maximize thermal dissipation and to
minimize voltage drop and EMI.
AP1212 Rev. 2
10 of 12
www.diodes.com
FEBRUARY 2007
© Diodes Incorporated
AP1212
DUAL USB HIGH-SIDE POWER SWITCH
Marking Information
SOP-8L
(Top View)
5
8
Logo
Enable Type
H : Active High
L : Active Low
Part Number
AP1212 X
L : Lead Free
G : Green
YY WW X X
ID code: internal
Xth week: 01~52
Year: "01" =2001
"02" =2002
1
4
SOP-8L
Device
AP1212XS
Package
SOP-8L
Identification Code
AP1212
Package Information
Package Type: SOP-8L
Gauge Plane
Seating Plane
0.38/1.27
Detail "A"
7°~9°
7°~9°
0.35max.
45°
Detail "A"
0.3/0.5
3.70/4.10
1.27typ
4.80/5.30
AP1212 Rev. 2
11 of 12
www.diodes.com
FEBRUARY 2007
© Diodes Incorporated
AP1212
DUAL USB HIGH-SIDE POWER SWITCH
IMPORTANT NOTICE
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further
notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither
does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will
agreeto hold DiodesIncorporatedand all the companieswhose productsare represented onour website, harmlessagainst all damages.
LIFE SUPPORT
Diodes Incorporated productsare notauthorizedfor use ascriticalcomponentsin lifesupportdevices or systemswithout theexpressed written approval ofthe
PresidentofDiodesIncorporated.
AP1212 Rev. 2
12 of 12
FEBRUARY 2007
www.diodes.com
© Diodes Incorporated
相关型号：
AP121A392KQT4A
Ceramic Capacitor, Multilayer, Ceramic, 100V, 10% +Tol, 10% -Tol, C0G, 30ppm/Cel TC, 0.0039uF, Surface Mount, 1812, CHIP
KYOCERA AVX
AP121A472KQX4A
Ceramic Capacitor, Multilayer, Ceramic, 100V, 10% +Tol, 10% -Tol, C0G, 30ppm/Cel TC, 0.0047uF, Surface Mount, 1812, CHIP
KYOCERA AVX
©2020 ICPDF网 联系我们和版权申明