参数资料
型号: A8735EEETR-T
厂商: Allegro Microsystems Inc
文件页数: 9/17页
文件大小: 0K
描述: IC PHOTOFLASH CAP CHARGER 8DFN
标准包装: 1
应用: 照相机闪光灯电容器充电器,Xenon
电流 - 电源: 50µA
电源电压: 1.5 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-UFDFN 裸露焊盘
供应商设备封装: 8-DFN/MLP(2x2)
包装: 标准包装
其它名称: 620-1339-6
A8735
Ultra Small Mobile Phone Xenon Photoflash
Capacitor Charger with IGBT Driver
Final Output Voltage versus Battery Voltage
Transformer L PRIMARY = 12.8 μ H, N =10.25, V IN =3.6 V, at room temperature
328
327
326
325
324
323
322
321
320
1.5
2.0
2.5
3.0 3.5 4.0
Battery Voltage (V)
4.5
5.0
5.5
Note: Output voltage is sensed from the primary side winding when the switch turns off. This duration, t off , has
to be long enough (>200 ns) in order to obtain an accurate measurement. The value of t off depends on I SWlim ,
primary inductance, L Primary , and the turns ratio, N, as given by: t off = (I SWlim × L PRIMARY × N) / V OUT .
Average Input Current versus Battery Voltage
Transformer L PRIMARY = 12.8 μ H, N =10.25, V IN =3.6 V, at room temperature
0.50
0.45
0.40
0.35
0.30
0.25
0.20
1.5
2.0
2.5
3.0 3.5 4.0
Battery Voltage (V)
4.5
5.0
5.5
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
8
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