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