TPS2482 Datasheet, PDF (8/56 Pages) Texas Instruments – 36-V Hotswap Controller with Precision I2C Power Monitoring

TPS2482
TPS2483
SLUSAW1 A – DECEMBER 2012 – REVISED MARCH 2013
Pinout Diagram
www.ti.com
NAME
A0
A1
ALERT
EN
GATE
GND
GND
N/C
OUT
PG
PROG
SCL
SDA
SENSE
TIMER
VCC
VINM
VINP
VREF
V_S
NUMBER
20
19
3
6
13
10
16
5
12
11
8
2
1
14
9
15
17
18
7
4
Table 1. PIN FUNCTIONS
I/O
DESCRIPTION
I
Serial-bus address input. Connect to GND, SCL, SDA, or V_S. Table 8 shows pin settings and
corresponding addresses.
I
Serial-bus address input. Connect to GND, SCL, SDA, or V_S. Table 8 shows pin settings and
corresponding addresses.
O Serial-bus multi-function alert signal, open-drain output.
I Hotswap section enable input.
O Pass-MOSFET gate-drive output.
- GND; common reference for all other input and output voltages.
- GND; common reference for all other input and output voltages.
- No connection; tie to GND or float.
I Input to sense pass-MOSFET source voltage for power-limit protection and PG state determination.
O Open-drain power-good output signal based on V_SENSE - V_OUT.
I
Pass-MOSFET power-limit programming input. Typically apply 0.4 to 4 V with a resistor divider from
VREF.
I Serial-bus clock line, high impedance input.
I/O Serial-bus data line, open-drain input/output.
I
Input to sense pass-MOSFET drain voltage for power-limit protection, and for sensing current-shunt
voltage.
I Connect the fault timing capacitor from TIMER to GND.
I Hotswap section bias-supply input and the positive reference for sensing current-shunt voltage.
I
Negative differential shunt voltage input. Connect to negative side of shunt resistor. Bus voltage is also
measured from this pin to GND.
I Positive differential shunt voltage input. Connect to positive side of shunt resistor.
O Reference voltage output, used to set power-limit threshold on PROG input.
I Monitor section bias-supply input.
8
Submit Documentation Feedback
Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: TPS2482 TPS2483