LT3585-1 Photoflash Charger with Adjustable Input Current and IGBT Driver

The LT3585 series are highly integrated ICs designed to charge photoﬂ ash capacitors in digital and ﬁ lm cameras. A new control technique allows for the use of extremely small transformers. Each part contains an on-chip high voltage NPN power switch. Output voltage detection is completely contained within the part, eliminating the need for any discrete zener diodes or resistors. The output voltage can be adjusted by simply changing the turns ratio of the transformer.

The CHRG/IADJ pin gives full control of the part to the user. Driving CHRG/IADJ low puts the part in low power shutdown. The CHRG/IADJ pin can also be used to reduce the input current of the charger, useful in extending battery life. The DONE pin indicates when the part has completed charging.

The LT3585 series of parts are housed in tiny 3mm × 2mm DFN packages

产品特点 Features

Adjustable Input Current
Integrated IGBT Driver
No Output Voltage Divider Needed
Uses Small Transformers: 5.8mm × 5.8mm × 3mm
Fast Photoflash Charge Times
Charges Any Size Photoflash Capacitor
Supports Operation from Single Li-Ion Cell, Two AA
Cells or any Supply from 1.5V Up to 16V
Small 10-Lead (3mm × 2mm) DFN Package

参数

应用

Digital/Film Camera Flash
PDA/Cell Phone Flash
Emergency Strobe

典型应用图

LT3585-1 订购信息和价格参考Package Variations and Pricing

器件型号	封装	引脚	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量) *
LT3585EDDB-0	DFN	10	E	$1.57
LT3585EDDB-0#TRPBF	DFN	10	E	$1.57	$1.15
LT3585EDDB-1	DFN	10	E	$1.57
LT3585EDDB-1#PBF	DFN	10	E	$1.57
LT3585EDDB-1#TRMPBF	DFN	10	E	$1.57	$1.10
LT3585EDDB-1#TRPBF	DFN	10	E	$1.57	$1.15
LT3585EDDB-2	DFN	10	E	$1.57
LT3585EDDB-2#PBF	DFN	10	E	$1.57
LT3585EDDB-2#TRPBF	DFN	10	E	$1.57	$1.15
LT3585EDDB-3	DFN	10	E	$1.57
LT3585EDDB-3#TRPBF	DFN	10	E	$1.57	$1.15

LT3585-1 数据手册及相关资料下载

数据手册(英文) : LT3585-0/LTC3585-1/LTC3585-2/LTC3585-3 - Photoflash Chargers with Adjustable Input Current and IGBT Drivers.PDF
可靠性数据 : R530 Reliability Data .PDF