LM2662 전압 인버터 -역극 전압, 더블 전압 출력
(LM2662 Voltage Inverter -Reverse Voltage Output)
개요
- 본 제품은 LM2662 전압 인버터 -역극 전압, 더블 전압 출력입니다.
- LM2662 칩을 탑재하고 있으며 1.5V-5.5V의 입력전압을 해당하는 음의 전압으로 출력합니다.
특징
- Reverse or double the input supply voltage
- 3.5Ω typical output resistance
- Typical conversion efficiency at 86 mA is 86%
- (LM2662) Optional Oscillator Frequency: 20 kHz/150 kHz
- (LM2663) Low Current Shutdown Mode
- Power supply 1.5~5.5V
- Precautions: The charge pump output resistance is non-regulated, as the output current increases, the voltage will gradually decline, this is a normal phenomenon, be sure to know! Do not reverse the polarity of the input and output, as this may damage the module! Input voltage should not exceed the limit. LM2662 model maximum 5.5V, otherwise burn out!
- Module Selection: LM2662 Model: Theory current 200mA, the actual maximum output current up to 400mA, the input voltage 1.5-5.5V. With frequency selection and low input selection. The charge pump type polarity reversal module adapted to generate a negative voltage reference, the op amp negative power supply and other low current applications.
문서
- LM2662
- Pin definition: V +: Positive voltage input;
- V-: Negative voltage output terminal;
- GND: power ground.
- FC sign: LM2662 frequency selection terminal, short circuit 150KHZ, disconnect 20KHZ (ICL7660 invalid), it is strongly recommended that short FC, ultra-low ripple.
- LV logo: Low selection terminal, the input voltage is less than 3.5V short circuit, can improve output performance. Refer to the main wiring diagram, the oscillation