Ricoh RN5T652 Charge-Pump and Power Supply Datasheet

This document is a detailed description of the RN5T652 development specifications, describing the features and characteristics of the product, including charge pump and power supply for white LED.

Brand: Ricoh
Document type: Datasheet
Language: English
Pages: 28
File format: PDF
File size: 2.3 MB
Published: 10 July, 2012
Updated: 29 September, 2023
MD5 checksum: 802E781DCC15F838E6FF9DDE0C5F695A
PDF: Ricoh RN5T652 Charge-Pump and Power Supply Datasheet PDF

About this manual

The RN5T652 is an integrated circuit designed to optimize power supply for white LED applications. It features a constant frequency charge pump capable of delivering up to 450mA and includes two low-noise Low Dropout (LDO) regulators that are individually programmable via I2C.

What's inside

Outline
Feature
Pin Configuration
Block Diagram
Functional Blocks
Electrical Characteristics
Package Information

Specifications

Charge Pump Current Capability	450mA
Flash LED Max Current	300mA
Main/Sub LEDs Max Current	25mA
I2C-Bus Max Frequency	400kHz
Package Type	28pin thin QFN

Frequently asked questions

What is the maximum current capability of the white LED charge pump?

The charge pump supports a maximum current capability of 450mA.

What is the maximum current for the flash LED driver?

The flash LED driver is rated for a maximum of 300mA.

What is the maximum current for the main and sub LEDs?

The main LEDs and sub LEDs are each rated for a maximum of 25mA.

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