参数资料
型号: A8740EEETR-T
厂商: Allegro Microsystems Inc
文件页数: 9/18页
文件大小: 0K
描述: IC PHOTOFLASH CAP CHARGER 8DFN
标准包装: 24,000
拓扑: 交直流离线开关,反激式,PFC
输出数: 1
内部驱动器:
类型 - 主要: 闪灯/白光
电源电压: 1.5 V ~ 5.5 V
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-EP(2x2)
包装: 带卷 (TR)
工作温度: -40°C ~ 85°C
A8740
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
319
318
1.5
2.0
2.5
3.0 3.5 4.0
4.5
5.0
5.5
Battery Voltage (V)
Average Input Current versus Battery Voltage
Transformer L PRIMARY = 12.8 μ H, N =10.25, V IN =3.6 V, at room temperature
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
Battery Voltage (V)
Note: Peak switch current is limited by the maximum on-time and di/dt of the transformer
primary current; therefore, average input current drops at very low battery voltage.
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
8
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