LT3468ES5-1#TRMPBF

LT3468ES5-1#TRMPBF is a photoflash capacitor charger in ThinSOT™. It is highly integrated IC designed to charge photoflash capacitors in digital and film cameras. A patented control technique allows for the use of extremely small transformers. Each device contains an on-chip high voltage NPN power switch. Output voltage detection is completely contained within the device, 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 LT3468-1 has a 0.7A limit. This current limit results in well controlled input currents of 225mA. The CHARGE pin gives full control of the part to the user. Driving CHARGE low puts the part in shutdown. The active-low DONE pin indicates when the part has completed charging. Typical applications include digital / film camera flash, PDA / cell phone flash and emergency strobe.

• Highly integrated IC reduces solution size
• Fast photoflash charge time is 5.5s (0V to 320V, 50µF, VIN = 3.6V)
• Supports operation from single Li-ion cell, or any supply from 2.5V upto 16V
• Adjustable output voltage, no output voltage divider needed
• Charges any size photoflash capacitor
• Switch VCESAT is 150mV typ at (ISW = 400mA, TA = 25°C)
• Quiescent current is 5mA typ at (TA = 25°C, VIN = 3V)
• Input voltage range from 2.5V to 16V
• Operating temperature range from -40°C to 85°C
• Package style is 5-lead plastic TSOT-23

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