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参数资料
| 型号： | A8740EEETR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 3/18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： | 无 |
| 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
Selection Guide
Ultra Small Mobile Phone Xenon Photoflash
Capacitor Charger with IGBT Driver
Part Number
A8740EEETR-T
Packing
3000 pieces per reel
Package
8-contact DFN/MLP with exposed thermal pad
Absolute Maximum Ratings
Characteristic
Symbol
Notes
Rating
Units
DC voltage.
SW Pin
V SW
(V SW is self-clamped by internal active clamp
and is allowed to exceed 50 V during flyback
spike durations. Maximum repetitive energy
during flyback spike: 0.5 μ J at frequency
–0.3 to 50
V
≤ 400 kHz.)
I SW
DC current, pulse width = 1 ms
3
A
VIN_DRV, VBAT Pins
CHARGE, TRIG, ˉDˉ ˉOˉ ˉNˉ ˉEˉ Pins
Remaining Pins
V IN
Care should be taken to limit the current when
–0.6 V is applied to these pins.
–0.3 to 6.0
–0.6 to V IN + 0.3 V
–0.3 to V IN + 0.3 V
V
V
V
Operating Ambient Temperature
Maximum Junction
Storage Temperature
T A
T J (max)
T stg
Range E
–40 to 85
150
–55 to 150
oC
oC
oC
THERMAL CHARACTERISTICS may require derating at maximum conditions
Characteristic
Symbol
Test Conditions*
Value Units
Package Thermal Resistance
R θ JA
4-layer PCB, based on JEDEC standard
49
oC/W
*Additional thermal information available on Allegro Web site.
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
2
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