RT9591 Datasheet | Richtek

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 ponents are used to reduce PCB space and cost. RT9591 is available in VQFN-16L 3x3 package. Ordering Information Package Type QV : VQFN-16L 3x3 (V-Type) Operating Temperature Range P : Pb Free with mercial Standard Note : Rich Tek Pb-free products are : `Ro HS pliant and patible with the current requirements of IPC/JEDEC J-STD-020. `Suitable for use in Sn Pb or Pb-free soldering processes. `100% matte tin (Sn) plating. Marking Information For marking information, contact our sales representative directly or through a Rich Tek 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 plete Indicator z Built-in IGBT Driver for IGBT Application z Built-in Voltage Detector z 16-Lead VQFN Package z Ro HS pliant 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 12 DRVOUT 11 VDRV 10 IMCD 9 VDOUT VDD CHARGE STAT FBVD VQFN-16L 3x3 DS9591-04 November 2005 Patent Pending .richtek. 1 ++ Typical Application Circuit Preliminary VBAT 1.8V to 6.5V R6 1.5M Delta 86A-3145 T1 1 : 15 CIN 10u F SW AO3400 Q1 VDD...