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參數(shù)資料
| 型號(hào)： | TPS2301PW |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | DUAL HOT SWAP POWER CONTROLLER WITH INDEPENDENT CIRCUIT BREAKER AND POWER-GOOD REPORTING |
| 中文描述： | 雙熱插拔電源與獨(dú)立斷路器及功率控制器，高質(zhì)量的報(bào)告 |
| 文件頁(yè)數(shù)： | 2/22頁(yè) |
| 文件大小： | 422K |
| 代理商： | TPS2301PW |
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TPS2300, TPS2301
DUAL HOT SWAP POWER CONTROLLER WITH INDEPENDENT
CIRCUIT BREAKER AND POWER-GOOD REPORTING
SLVS265B – FEBRUARY 2000 – REVISED APRIL 2000
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
functional block diagram
PREREG
UVLO and
Power-Up
IN1
ISET1
ISENSE1
GATE1
Clamp
Charge
Pump
75
μ
A
Pulldown FET
Circuit Breaker
dv/dt Rate
Protection
20-
μ
s Deglitch
DISCH1
Logic
VSENSE1
PWRGD1
FAULT
TIMER
Second Channel
PWRGD2
GATE2
ISENSE2
ISET2
IN2
DISCH2
VSENSE2
Circuit
Breaker
VREG
50-
μ
s Deglitch
AGND
DGND
ENABLE
50
μ
A
Terminal Functions
TERMINAL
NAME
I/O
DESCRIPTION
NO.
8
3
20
19
18
16
1
2
11
12
10
9
15
14
17
13
4
5
7
6
AGND
DGND
DISCH1
DISCH2
ENABLE/ ENABLE
FAULT
GATE1
GATE2
IN1
IN2
ISENSE1
ISENSE2
ISET1
ISET2
PWRGD1
PWRGD2
TIMER
VREG
VSENSE1
VSENSE2
I
I
Analog ground, connects to DGND as close as possible
Digital ground
Discharge transistor 1
Discharge transistor 2
Active low (TPS2300) or active high enable (TPS2301)
Overcurrent fault, open-drain output
Connects to gate of channel 1 high-side MOSFET
Connects to gate of channel 2 high-side MOSFET
Input voltage for channel 1
Input voltage for channel 2
Current-sense input channel 1
Current-sense input channel 2
Adjusts circuit-breaker threshold with resistor connected to IN1
Adjusts circuit-breaker threshold with resistor connected to IN2
Open-drain output, asserted low when VSENSE1 voltage is less than reference.
Open-drain output, asserted low when VSENSE2 voltage is less than reference.
Adjusts circuit-breaker deglitch time
Connects to bypass capacitor, for stable operation
Power-good sense input channel 1
Power-good sense input channel 2
O
O
I
O
O
O
I
I
I
I
I
I
O
O
O
O
I
I
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