General Description

The RT9598 is a complete photoflash module solution for

digital and film cameras. It is targeted for applications that

use 2 to 4 AA batteries or 1 to 2 Lithium-Ion batteries.

The RT9598 adopts Flyback topology which uses constant

primary peak current and zero secondary valley current

to charge photoflash capacitor quickly and efficiently. The

built-in 55V MOSFET allows flexibility in transformer design

and simplifies the PCB layout. The RT9598 also integrates

an IGBT driver for igniting photoflash tube. Only a few

external components are required, which greatly reduces

the PCB space and cost. The RT9598 is available in the

WDFN-8L 2x2 package.

Features

55V MOSFET Integrated

Charge any Size Photoflash Capacitor

Adjustable Input Current

Adjustable Output Voltage

Charge Complete Indicator

Built-In IGBT Driver for IGBT Application

Constant Peak Current Control

Over-Voltage Protection

Maximum On-Time Protection

8-Lead WDFN Package

RoHS Compliant and Halogen Free

Applications

Digital Still Camera

Film Camera Flash Unit

Camera Phone Flash