AT1454/AT1454A/AT1454B
Preliminary Product Information
Photoflash Capacitor Charger for DSC
Timing Chart
Vcc
Trige
READY
VOUT
CHARGE
Charge On
Timing
Power OFF
Timing
Shutdown
Charging
Auto charge to Refresh
Storbe
AT1454 Auto-Refresh Mode
Vcc
Trige
READY
VOUT
CHARGE
Charge On
Timing
Power OFF
Timing
Shutdown
Charging
Toggling CHARGE to Refresh
Storbe
1.uP Detected READY pin Low ->High(Charge Complete)
-->allow enter refresh mode or strobe tube
2.Use uP to delay Photoflash Capacitor self-discharge time Ts
3.Toggling CHARGE pin high->low->high, force the IC into refresh
charging mode.
AT1454A/B Charge Toggle-Refresh (Soft-ware control)Mode
7F, No.9,PARK AVENUE. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
3/24/2006 REV:1.2
Fax: 886-3-563-0879
WWW: http://www.aimtron.com.tw
Email: service@aimtron.com.tw
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AIMTRON [ AIMTRON TECHNOLOGY ]
