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参数资料
| 型号： | TPS2552DRVT |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
| 封装： | GREEN, PLASTIC, SON-6 |
| 文件页数： | 28/32页 |
| 文件大小： | 1025K |
| 代理商： | TPS2552DRVT |
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Charge
Pump
Driver
UVLO
Current
Limit
Thermal
Sense
IN
GND
EN
ILIM
OUT
FAULT
CS
Reverse
Voltage
Comparator
-
+
Current
Sense
Note A: TPS255xpartsenterconstantcurrentmode
duringcurrentlimitcondition; TPS255x-1 partslatchoff
(Note A)
4-ms
Deglitch
8-msDeglitch
SLVS841D
– NOVEMBER 2008 – REVISED JUNE 2011
DEVICE INFORMATION
Pin Functions
PIN
I/O
DESCRIPTION
NAME
TPS2552DBV
TPS2553DBV
TPS2552DRV
TPS2553DRV
EN
3
–
4
–
I
Enable input, logic low turns on power switch
EN
–
3
–
4
I
Enable input, logic high turns on power switch
GND
2
5
Ground connection; connect externally to
PowerPAD
Input voltage; connect a 0.1
μF or greater
IN
1
6
I
ceramic capacitor from IN to GND as close to the
IC as possible.
Active-low open-drain output, asserted during
FAULT
4
3
O
overcurrent, overtemperature, or reverse-voltage
conditions.
OUT
6
1
O
Power-switch output
External resistor used to set current-limit
ILIM
5
2
O
threshold; recommended 15 k
≤ RILIM ≤ 232
k
.
Internally connected to GND; used to heat-sink
PowerPAD
–
PAD
the part to the circuit board traces. Connect
PowerPAD to GND pin externally.
Add -1 for Latch-Off version
FUNCTIONAL BLOCK DIAGRAM
Copyright
2008–2011, Texas Instruments Incorporated
5
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| TPS2553DRVT | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
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