RT9750 datasheet(21/30 Pages) RICHTEK

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RT9750

DS9750-01 June 2017

www.richtek.com

is a registered trademark of Richtek Technology Corporation.

Name

Function

Addr

Reset

PROT_DLY&OCP

0x09

0xA0

Bit

Mode

Name

Reset Value

Description

[7:4]

R/W

IOC_OCP<3:0>

1010

IOC_OCP (Input Over-Current Protection)

Offset : 0A

LSB<3:0> : 4A, 2A, 1A, 0.5A

Range Min : 0A (0b0000)

Range Max : 6.5A (0b1101)

Default : 5A (0b1010)

R/W

LOWCHG_ALM_EN

Enables LOWCHG_ALM in CHG mode

0 – Disable LOWCHG_ALM (default)

1 – Enable LOWCHG_ALM

R/W

LOWCHG_ALM

0 – 100mA (default)

(0x15<4:0> = 00000, 0x16<7:0> = 00110010)

1 – 200mA

(0x15<4:0> = 00000, 0x16<7:0> = 01100100)

R/W

OCP_RES

Controls the response of the OCP event for IBUS.

0 – Blanking mode; the device will wait 50µs before the

battery switch is disabled and latched off (default)

1 – Hiccup mode; battery switch is disabled

instantaneously, and the device will attempt to turn on

the battery switch wait 250µs to check OCP and turn

off every 100ms, up to 7 times before latching off.

R/W

VBUS_OVP_DLY

Sets VBUS fault deglitch time

0 – 4

s deglitch time (default)

1 – 20

s deglitch time

Name

Function

Addr

Reset

VBUS_OVP

0x0A

0x34

Bit

Mode

Name

Reset Value

Description

[6:0]

R/W

VBUS_OVP<6:0>

0110100

VBUS_OVP

Offset : 4.2V

LSB<6:0> : 1600mV, 800mV, 400mV, 200mV,

100mV, 50mV, 25mV

Range Min : 4.2V (0b0000000)

Range Max : 6.5V (0b1011100)

Default : 5.5V (0b0110100)

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