RT9750WSC datasheet(3/30 Pages) RICHTEK

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RT9750

DS9750-01 June 2017

www.richtek.com

is a registered trademark of Richtek Technology Corporation.

Functional Pin Description

Pin No.

Pin Name

I/O

Pin Function

A1, A2

No internal connection.

A6, B6, C6, D6, E6,

F6, G6

VBUS

DC input power supply.

A5, B5, C5, D5, E5,

F5, G5

PMID

Connect these pin together and do not connect to power input or

ground.

A3, B3, C3, D3, E3,

F3, G3, A4, B4, C4,

D4, E4, F4, G4

VOUT

Battery connection point to positive terminal of the battery pack.

E1, E2, F1, F2

GND

Ground.

BATN

Negative input for battery current sensing by 1k

. Connect to negative

terminal of battery pack.

BATP

Positive input for battery voltage sensing by 1k

. Connect to positive

terminal of battery pack.

TSVBUS

VBUS temperature qualification voltage input. Require an external

resistor divider and a voltage reference.

TSBAT

Battery temperature qualification voltage input. Require an external

resistor divider and a voltage reference.

SDA

I2C interface data. Connect to pull-up voltage via 10k

 pull-up resistor.

SCL

DIO I2C interface clock. Connect to pull-up voltage via 10k

 pull-up resistor.

Device enable control pin. Pull low to disable device. I2C not available

when disabled.

INT

Open drain interrupt output. connect to pull-up voltage via 10k

 pull-up

resistor. Normally high, the INT pin sends an active low.

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