Aimtron Technology AT1453
The AT1453 is a charger control IC for Photoflash capacitor with soft start function, adjustable maximum duty cycle and auto-discharge (soft start capacitor) circuit. The control technique allows for the use of external resistor to change the switching duty and use of transformer to control the input current. It is ideal for DSC flash unit.| Part No. | AT1453 |
|---|---|
| Datasheet | AT1453 Download |
| Manufacturer |  Aimtron Technology |
| Description | Photoflash Capacitor Charger |
| Buy | Stock & Price |
FEATURES
● 2.5 to 5.5V supply voltage operating range.● Low current consumption: 1mA in operation,
● 50 kHz or 100kHz operation frequency .
● Built-in maximum duty control.
● Push-pull output.
● Built-in soft start circuit.
● Built-in auto-discharge function.
GENERAL DESCRIPTION
Adjustable soft start is programmed with an external capacitor on SS pin. A logic high on the CHARGE pin initiates charging, while the READY pin signals that the capacitor is fully charged. It is ideal for DSC flash unit. * Protected by U.S. Patent #6,724,989APPLICATIONS
●Digital Still Cameras flash unit Block Diagram VCC READY GND Reference Output Control Block OUT SS DUTY Vref 1.1V CHARGE Enable Block FB Aimtron reserves the right without notice to change this circuitry and specifications. 2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C. Tel: 886-3-563-0878 WWW: Fax: 886-3-563-0879 Email: service@aimtron.com.tw 1 AT1453 Preliminary Product Information Photoflash Capaci...
