Datasheet > RT4832A

RT4832A

更新时间： 2024-02-29 20:57:17

品牌	Logo	应用领域
立锜 - RICHTEK		集成电源管理电路
页数	文件大小	规格书
26页	1666K
描述
Sub PMIC with Dual-Output Boost Converter

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技术参数
数据手册

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RT4832A 技术参数

Status：	Active	Vin (min) (V)：	2.5
Vin (max) (V)：	5.5	Number of Channels：	3
Number of Buck Converters：	0	Number of Boost Converters：	3
Number of Negative Outputs：	1	Number of LED Drivers：	1
Number of LDO Regulators：	1	Features：	Enable Input;OCP;OVP;SCP
Package Type：	WL-CSP2.24x2.64-30(BSC)	Datasheet：	https://datasheet5.oss-cn-shanghai.aliyuncs.com/datasheets/richtek/RT4832A/DS4832A-00.pdf

RT4832A 数据手册

RT4832A

Torch Mode

Strobe

Enable

Vin

Monitor

Torch/

Flash

STRB

Txmask

IFLED

Torch Current

Flash Mode

Strobe

Enable

Vin

Monitor

Torch/

Flash

STRB

> Flash Timeout

Txmask

Flash Current

Torch Current

Flash Current

Torch Current

Flash Current

Flash Timeout

IFLED

Torch Current

Figure 5. Flash LED Operation

of the switching cycle. Switching resumes at the start of

the next switching period. If the overcurrent condition

persists, the device operates continuously in current

limit. This prevents damage to the RT4832A and

excessive current draw from the battery during output

short-circuit conditions. When Flash occurs the current

Limit event, the FLASH_OCP flag (register 0x10 bit [1])

is set.

Over-Voltage Protection (Open LED, Open Circuit)

The RT4832A FLED provides an internal over voltage

protection to limit its output voltage. The OVP function

prevents the RT4832A from damaging while open LED

or open circuit condition occurs. Once the open circuit

condition is removed, and the RT4832A will return to

normal operation.

Over-Current Protection

Over-Temperature Protection

The RT4832A features two selectable flash inductor

current limits that are programmable through the I²C

compatible interface. When the inductor current limit is

reached, the RT4832A terminates the charging phase

The RT4832A provides an over-temperature protection

to prevent the IC from overheating. When the junction

temperature rises above 145C, the OTP function will

is a registered trademark of Richtek Technology Corporation.

www.richtek.com

DS4832A-00 January 2017

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