RT9750
21
DS9750-00 March 2017 www.richtek.com
©
Copyright 2017 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Name Function Addr Reset
PROT_DLY&OCP 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)
3 R/W LOWCHG_ALM_EN 0
Enables LOWCHG_ALM in CHG mode
0 – Disable LOWCHG_ALM (default)
1 – Enable LOWCHG_ALM
2 R/W LOWCHG_ALM 0
LOWCHG_ALM
0 – 50mA (default)
(0x15<4:0> = 00000, 0x16<7:0> = 00110010)
1 – 100mA
(0x15<4:0> = 00000, 0x16<7:0> = 01100100)
1 R/W OCP_RES 0
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.
0 R/W VBUS_OVP_DLY 0
Sets VBUS fault deglitch time
0 – 4s deglitch time (default)
1 – 20s deglitch time
Name Function Addr Reset
VBUS_OVP 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)
