参数资料
型号: NCP5680MUTXG
厂商: ON Semiconductor
文件页数: 24/27页
文件大小: 0K
描述: IC LED DRIVER WHT HI EFF 24-UQFN
产品变化通告: Product Obsolescence 30/Jun/2011
标准包装: 3,000
拓扑: 切换式电容器(充电泵)
输出数: 2
内部驱动器:
类型 - 主要: 闪灯/白光
类型 - 次要: 白色 LED
频率: 850kHz ~ 1.15MHz
电源电压: 2.7 V ~ 5.5 V
输出电压: 4.5 V ~ 5.3 V
安装类型: 表面贴装
封装/外壳: 24-UFQFN 裸露焊盘
供应商设备封装: 24-UQFN(3.5x3.5)
包装: 带卷 (TR)
工作温度: -40°C ~ 85°C
NCP5680
Figure 23. Basic I2C Read Sequence to Extract the STATUS Register
Thermal Shutdown
When the thermal shutdown is engaged, the charge pump
is fully de ? activated and neither the torch/video, nor the
flash can be launched. The rest of the chip is maintained
active in order to keep a full control of the operation, in
particular the SuperCAP bias voltage is active and
Basic I/O Protection Structure
All the pins of the NCP5680 device are ESD protected by
built in diode structure as depicted in Figure 24. Since a
diode is attached between the I/O pin and the supply pin,
the voltage at the I/O pin shall not extend the V CC voltage
plus one Vf drop.
regulated.
+Vcc
Vsw pin
D1
FET_P
DRIVER
FET_N
D1
Vz45V
I/O Pin
D2
FET_N
High Voltage
Structure
GND
GND
GND
Figure 24. Typical ESD Pin Protection Structure
Figure 25. Basic ESD Protection Dedicated to
Power Pin.
Different structures might apply to protect specific pins, in particular the power related functions. In this case, a single
diode based clamp structure can be wired to sustain the ESD specifications as depicted in Figure 25.
http://onsemi.com
24
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