1FEATURES

2· Wide Input Voltage

– VBAT = 1.4 V to 12 V

– VCC = 2.7 V to 5.5 V

· Integrated 50-V Power Switch With Lower R ON

· Programmable Peak Current at Primary Side

From 0.5 A to 2 A

· Optimized Switch ON/OFF Control for Fast

Charging

· Charge Complete Detection at Primary Side

With High Accuracy

· Integrated Insulated Gate Bipolar Transfer

(IGBT) Driver

· 3-mm × 3-mm, 16-Pin QFN Package

· Protection

– Overcurrent Protection (OCP)

– Thermal Shutdown (TSD)

APPLICATIONS

· Digital Still Cameras

· Optical Film Cameras

· Digital Video Camcorders

· Cell Phones

DESCRIPTION/ORDERING INFORMATION

The TPS65563A offers a complete solution for a

charging photo flash capacitor and flashing xenon

tube with an insulated gate bipolar transfer (IGBT)

driver. This device has an integrated voltage

reference, power switch (SW), comparators for peak

current detection/power SW turnon detection/charge

complete detection, an IGBT driver, and control logics

for charging applications/driving IGBT applications.

Compared with discrete solutions, this device reduces

the component count, shrinks the total solution size,

and erases the difficulty of design for xenon-tube applications.

Additional advantages are a fast charging time and high efficiency since this device has an optimized

pulse width modulation (PWM) control algorithm for

photo flash charging. In addition, this device has high

accuracy for peak current detection and for charge

completion detection. The distribution of charging

time is smaller.

Other provisions of the device include sensing the

output voltage at the primary side, programmable peak current at the primary side, protection features

(thermal shutdown and overcurrent), an output pin for

charge completion detection, and input pins for

charge enable, flash acceptable, and flash on.