| Linduino 1.3.0 Linear Technology Arduino-Compatible Demonstration Board

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REG4
Switching Regulators, Battery Chargers, and LED Drivers » LTC4155: Dual-Input Power Manager / 3.5A Li-Ion Battery Charger with I²C Control and USB OTG » LTC4155 Register Map Definitions

REG4 Register. More...

## Macros
#define | LTC4155_REG4_SUBADDR 0x04
#define | LTC4155_REG4 (0 << 12 | (16 - 1) << 8 | LTC4155_REG4_SUBADDR)

## Detailed Description

REG4 Register.

7 | 6 | 5 | 4 | 3 | 2 | 1 | 0
--- | --- | --- | --- | --- | --- | --- | ---
EXT_PWR_GOOD | USBSNS_GOOD | WALLSNS_GOOD | AT_INPUT_ILIM | INPUT_UVCL_ACTIVE | OVP_ACTIVE | OTG_FAULT | BAD_CELL

- CommandCode: 0x04
- Contains Bit Fields:
  - EXT_PWR_GOOD : External power (Wall or USB) available.
  - USBSNS_GOOD : USB input voltage valid.
  - WALLSNS_GOOD : WALL input voltage valid.
  - AT_INPUT_ILIM : Input current limit control circuit engaged.
  - INPUT_UVCL_ACTIVE : Input undervoltage limit control circuit engaged (brownout).
  - OVP_ACTIVE : Overvoltage protection fault.
  - OTG_FAULT : USB On-The-Go step-up regulator fault shutdown.
  - BAD_CELL : Battery unresponsive to charging for 30 minutes.

## Macro Definition Documentation

## ◆ LTC4155_REG4

#define LTC4155_REG4 (0 << 12 | (16 - 1) << 8 | LTC4155_REG4_SUBADDR)

Definition at line 574 of file LTC4155_reg_defs.h.

## ◆ LTC4155_REG4_SUBADDR

#define LTC4155_REG4_SUBADDR 0x04

Definition at line 573 of file LTC4155_reg_defs.h.