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RT9591

Richtek Technology
Part Number RT9591
Manufacturer Richtek Technology
Description Smart Photoflash Capacitor Charger
Published Mar 31, 2015
Detailed Description Preliminary RT9591 Smart Photoflash Capacitor Charger with IGBT Driver General Description The RT9591 is a highly int...
Datasheet PDF File RT9591 PDF File

RT9591
RT9591

Overview
Preliminary RT9591 Smart Photoflash Capacitor Charger with IGBT Driver General Description The RT9591 is a highly integrated photoflash charging solution in digital and film cameras.
It is targeted for applications that use either two AA batteries or a single lithium-ion battery.
The RT9591 integrates a constant current controller for charging high voltage photoflash capacitor quickly and efficiently, an IGBT driver for igniting flash tube, and a voltage detector.
Only a few external components are used to reduce PCB space and cost.
RT9591 is available in VQFN-16L 3x3 package.
Ordering Information RT9591 Package Type QV : VQFN-16L 3x3 (V-Type) Operating Temperature Range P : Pb Free with Commercial Standard Note : RichTek Pb-free products are : `RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.
`Suitable for use in SnPb or Pb-free soldering processes.
`100% matte tin (Sn) plating.
Marking Information For marking information, contact our sales representative directly or through a RichTek distributor located in your area, otherwise visit our website for detail.
Features z 1.
8V to 6.
5V Battery Input Voltage Range z Charges Any Size Photoflash Capacitor z Adjustable Input Current z Uses Standard Transformers z Adjustable Output Voltage z Charge Complete Indicator z Built-in IGBT Driver for IGBT Application z Built-in Voltage Detector z 16-Lead VQFN Package z RoHS Compliant and 100% Lead (Pb)-Free Applications z Digital Still Camera z Film Camera Flash Unit z Camera Phone Flash Pin Configurations (TOP VIEW) VBAT CS DRVIN GNDDRV 16 15 14 13 FB PGND EXT GND 1 2 3 4 GND 12 DRVOUT 11 VDRV 10 IMCD 9 VDOUT 5678 VDD CHARGE STAT FBVD VQFN-16L 3x3 DS9591-04 November 2005 Patent Pending www.
richtek.
com 1 ++ RT9591 Typical Application Circuit Preliminary VBAT 1.
8V to 6.
5V R6 1.
5M Delta 86A-3145 T1 1 : 15 CIN 10uF SW AO3400 Q1 VDD 3.
3V VBAT EXT IMCD R7 1M 16 3 8 FBVD 10 5 VDD DRVIN 14 Strobe 1uF R8 100k RT9591 VDRV DRV...


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