TUSB1211

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SLLSE80 – MARCH 2011

Table 2-1. Terminal Functions (continued)

#

PIN

(1)

NAME

A/D

(2)

TYPE

(3)

LEVEL

(4)

DESCRIPTION

When CHRG_POL pin is at GND then CHRG_DET is in active low open-drain mode with external

35

F2

CHRG_DET

D

O

RCHRGDET (100K) connected to VBAT. When CHRG_POL pin is at VBAT then CHRG_DET is in active

high open-source mode with external RCHRGDET (100K) connected to GND. This pin is 5V tolerant.

Controls an external, active high, VBUS power switch or charge pump. Open source output on VBAT

36

D4

PSW

D

O

supply when PSW_OSOD bit is 0 (default), open-drain active-low output when PSW_OSOD bit is 1.

Requires an external RPSW (100K) pull down/up resistor to GND/VBAT .

2.2

Block Diagram

Copyright © 2011, Texas Instruments Incorporated

Description

9

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