IMP560

Features: ·112V peak-to-peak typical AC output voltage·Low input current (w/inductor current)......12mA·Low disabled input current......50nA·Wide operating voltage range - from 2.0V to 6.5V·Simple design requires few passive components·Adjustable output lamp frequency controls lamp color and power...

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SeekIC No. : 004374472 Detail

IMP560: Features: ·112V peak-to-peak typical AC output voltage·Low input current (w/inductor current)......12mA·Low disabled input current......50nA·Wide operating voltage range - from 2.0V to 6.5V·Simple d...

floor Price/Ceiling Price

Part Number:
IMP560
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/12/21

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Product Details

Description



Features:

·112V peak-to-peak typical AC output voltage
·Low input current (w/inductor current)......12mA
·Low disabled input current......50nA
·Wide operating voltage range - from 2.0V to 6.5V
·Simple design requires few passive components
·Adjustable output lamp frequency controls lamp color and power consumption
·Adjustable converter frequency for minimum power consumption
·IMP803 pin-compatible
·MicroSO package option




Application

·Night lights
·Automotive displays
·Cellular phones
·Pagers
·Clocks and radios
·Portable GPS receivers
·LCD module backlights



Pinout

  Connection Diagram


Specifications

Supply Voltage, VDD, VRSW-OSC and VREL-OSC. . . . . 0.5V to +7.0V
Output Voltage, VCS . . . . . . . . . . . . . . . . . . . . . .. .  0.5V to +120V
Operating Temperature Range . . . . . . . . . . . . ..  40°C to +85°C
Storage Temperature Range. . . . . . . . . . . . . . . 65°C to +150°C
Power Dissipation (SO) . . . . . . . . . . . . . . . . . . .. . .. . .. . .. . . 400mW
Power Dissipation (MicroSO) . . . . . . . . . . . . . . . . .. . .. . .. . . .300mW



Description

The IMP560 is an Electroluminescent (EL) lamp driver designed for systems with low EL lamp drive voltage requirements. It is ideal for low ambient light applications or where small lamps are used. With just onehalf the inductor current of the IMP803, the IMP560 reduces system power consumption and extends battery life. Input supply voltage range of IMP560 is 2.0V to 6.5V and quiescent current is a low 420µA. Typical EL lamp drive voltage is ±56V.

All four EL lamp-driving functions are on-chip. These are the switchmode power supply, IMP560 high-frequency oscillator, the high-voltage H-bridge lamp driver and its low-frequency oscillator. EL lamps of up to 6nF capacitance can be driven to high brightness.

The circuit requires few external components; a single inductor, a single diode, two capacitors and three resistors. Two of these resistors set the frequencies for two internal oscillators. An internal circuit shuts down the switching regulator when the lamp drive voltage exceeds 120V peak-to-peak. This conserves power of IMP560 and extends battery life. A disable mode puts the chip into a low current drain mode. With a 3.0V supply, quiescent current drops to 200nA maximum, 50nA typical. The IMP560 is disabled by connecting the oscillator frequency setting resistor RSW to ground.

The IMP560 is available in MicroSO and SO-8 packages and in die or wafer form.




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