參數(shù)資料
型號: TPS2481PW
廠商: TEXAS INSTRUMENTS INC
元件分類: 電源管理
英文描述: POWER SUPPLY SUPPORT CKT, PDSO20
封裝: GREEN, PLASTIC, TSSOP-20
文件頁數(shù): 56/56頁
文件大?。?/td> 1381K
代理商: TPS2481PW
1
2
3
4
5
6
7
8
9
10
SDA
SDL
NC
VS
NC
EN
VREF
PROG
TIMER
GND
20
19
18
17
16
15
14
13
12
11
A0
A1
VINM
VINP
GND
VCC
SENSE
GATE
OUT
PG
TPS2480/81
www.ti.com
SLUS939B – APRIL 2010 – REVISED DECEMBER 2010
20-Pin TSSOP
Table 1. TERMINAL FUNCTIONS
FUNCTION
TPS2480/81
DESCRIPTION
SDA
1
I2C Data Line
SCL
2
I2C Clock
NC
3
Tie to GND or float
VS
4
Power input to the I2C block, 3.3 V to 5 V
NC
5
No connection, tie to GND or float
EN
6
Device enable
VREF
7
Reference voltage output, used to set power threshold on PROG pin
PROG
8
Power-limit setting input
TIMER
9
Fault timing capacitor
GND
10
GND
PG
11
Power good reporting output, open-drain
OUT
12
Output voltage feedback
GATE
13
Gate output
SENSE
14
Current-limit sense input
VCC
15
Main power supply input to device and FET
GND
16
GND
VINP
17
Positive differential shunt voltage. Connect to positive side of shunt resistor
Negative differential shunt voltage. Connect to negative side of shunt resistor. Bus voltage is
VINM
18
measured from this pin to GND
A1
19
Address pin. Table 2 shows pin settings and corresponding addresses.
A0
20
Address pin. Table 2 shows pin settings and corresponding addresses.
Copyright 2010, Texas Instruments Incorporated
9
Product Folder Link(s): TPS2480 TPS2481
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