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参数资料
| 型号： | CPC6826U |
| 厂商： | CLARE INC |
| 元件分类： | 显示驱动器 |
| 中文描述： | EL DISPLAY DRIVER, PDSO8 |
| 封装： | ROHS COMPLIANT, MO-187AA, MSOP-8 |
| 文件页数： | 2/12页 |
| 文件大小： | 815K |
| 代理商： | CPC6826U |
CPC6826
10
www.clare.com
R00C
4.3 Switch Oscillator Frequency
An external resistor connected between pin 2, RSW,
and pin 1, VDD, controls the frequency of the Switch
Oscillator. Switching frequency increases as the
resistor value decreases. For resistor value selections,
please refer to the typical characteristics graph:
Switching Frequency vs. Switch Resistor. Note
that switch accuracy is +/-20% due to the internal RC
network.
4.4 Switcher Duty Cycle
Clare’s CPC6826 driver is designed to generate a
fixed duty cycle with a nominal 88% on-time. In
addition, this circuit generates an adjustable converter
frequency via RSW to turn on and off the high voltage
power MOSFET. This drive method helps to eliminate
RFI that can cause problems in portable wireless
devices. The waveform on pin 5 (LX) shows a typical
switch oscillator frequency of 79.6KHz.
100
1000
10000
Switc
hing
Frequenc
y
(KHz)
1
10
100
1000
CPC6826
Switching Frequency
vs. Switch Resistor
CH1: 50V/Div
Time: 2
μs/Div
Frequency = 79.6KHz
RSW = 560K
Ω
REL = 1M
Ω
LX = 220
μH
EL Lamp = 1.6 in2
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| CPC7220W | 功能描述:模拟开关 IC 8-Channel High Voltage Analog Switch 28-lead PLCC in T&R RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
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