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Description
The IMP5111CDP is an Electroluminescent (EL) lamp driver designed for systems that must operate down to 1 volt and below. It has an input supply voltage range of 0.9V to 2.5V and a typical output lamp drive voltage of 180V. This electronic component integrates all four EL lamp-driving functions on one chip, including the switch mode power supply, high-frequency oscillator, high-voltage H-bridge lamp driver, and low-frequency oscillator. It can drive EL lamps of up to 6nF capacitance to high brightness. With its minimal external component requirements of one inductor, one diode, one capacitor, and two resistors, it offers a simple design.
In addition, the IMP5111CDP features a disable mode that puts the chip into a low current-drain state. When disabled, the quiescent current drops to 1µA (typical) with a VDD of 1.5V. The chip can be disabled by connecting RSW, the oscillator frequency setting resistor, to ground. An internal circuit shuts down the switching regulator when the lamp drive voltage exceeds 180V peak-to-peak, conserving power and extending battery life.
The IMP5111CDP is available in MicroSO and SO-8 packages, as well as in die form.
Specifications and features
Key Features:
- Wide operating voltage range - from 0.9V to 2.5V
- Simple design requires few passive components
- 180V peak-to-peak typical AC output voltage
- Adjustable output frequency controls lamp color and power consumption
- Adjustable converter frequency minimizes circuit power consumption
- Disable mode extends battery life
- Disable current 1µA typical
- Compact MicroSO package option
Application Scenarios
The IMP5111CDP is suitable for various applications, including:
- Audio/TV remote control units
- Pagers/Cellular phones
- PDAs
- Clocks and radios
- Portable GPS receivers
- LCD modules
- Toys
Comparison
Advantages- Wide operating voltage range enables operation down to 1 volt and below
- All four EL lamp-driving functions integrated on one chip
- Simple design with minimal external components
- Adjustable output frequency and converter frequency
- Disable mode conserves power and extends battery life
- Compact package options
Disadvantages- None identified
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Datasheet
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Shopping guide
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Popular parts of the same kind
- Datasheet: Download IMP5111CDP
- Chipdatas Part: CD89-IMP5111CDP
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/09/20 06:07 +0800
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