IMP803, IMP803IMA, IMP803IMA/T Selling Leads, Datasheet
MFG:IMP Package Cooled:SMD D/C:NA
IMP803, IMP803IMA, IMP803IMA/T Datasheet download
Part Number: IMP803
MFG: IMP
Package Cooled: SMD
D/C: NA
IMP803, IMP803IMA, IMP803IMA/T
- Table of contents:
Info of IMP803
Info of IMP803IMA
Info of IMP803IMA/T
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About IMP803
PDF/DataSheet Download
Datasheet: IMP803
File Size: 166070 KB
Manufacturer: IMP [IMP, Inc]
Download : Click here to Download
About IMP803IMA
PDF/DataSheet Download
Datasheet: IMP803IMA
File Size: 166070 KB
Manufacturer: IMP [IMP, Inc]
Download : Click here to Download
About IMP11
PDF/DataSheet Download
Datasheet: IMP11
File Size: 177280 KB
Manufacturer: ROHM [Rohm]
Download : Click here to Download
IMP803 General Description
The IMP803 is an Electroluminescent (EL) lamp driver with the four EL lamp driving functions on-chip. These are the switch-mode power supply, its high-frequency oscillator, the high-voltage H-bridge lamp driver and its low-frequency oscillator. The IMP803 drives EL lamps of up to 30nF capacitance to high brightness; EL lamps with capacitances greater than 30nF can be driven, but will be lower in light output. The typical regulated output voltage that is applied to the EL lamp is 180V peak-topeak. The circuit requires few external components, a single inductor, single diode, two capacitors and three resistors. Two of these resistors set the frequency for two internal oscillators.
The IMP803 operates over a 2.0V to 6.5V supply voltage range. A regulated, low-power source can supply the low quiescent current of the IMP803. The inductor may be driven from an independent, unregulated supply voltage in dual supply applications.
An internal circuit shuts down the switching regulator when the lamp drive voltage reaches 180V peak-to-peak. This conserves power and extends battery life.
The IMP803 is available in MicroSO and SO-8 packages and in die or wafer form.
IMP803 Maximum Ratings
VDD, VRSW-OSC and VREL-OSC . . . . . . . . . . . 0.5V to +7.0V
VCS, LX . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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
VA, VB . . . . . . . . . . . . . . . . . . . . . . . . . 0.5V to VCS (pin 3)
Note: All voltages are referenced to GND.
These are stress ratings only and functional operation is not implied. Exposure to absolute maximum ratings for prolonged time periods may affect device reliability.
IMP803 Features
`Low Power: 420µA typical VDD current
`Wide operating voltage range - from 2.0V to 6.5V
`180V peak-to-peak typical AC output voltage
`Large output load capability - drive lamps with more than 30nF capacitance
`Adjustable output lamp frequency for control of lamp color, lamp life, and power consumption
`Adjustable converter frequency to minimize power consumption
`Device can be Enabled/Disabled
`Low quiescent current 20nA (disabled)
`High-Voltage CMOS Process
`MicroSO package option
`Wide operating voltage range - from 2.0V to 6.5V
`180V peak-to-peak typical AC output voltage
`Large output load capability - drive lamps with more than 30nF capacitance
`Adjustable output lamp frequency for control of lamp color, lamp life, and power consumption
`Adjustable converter frequency to minimize power consumption
`Device can be Enabled/Disabled
`Low quiescent current 20nA (disabled)
`High-Voltage CMOS Process
`MicroSO package option
IMP803 Typical Application
·GPS units/Pagers/Cellular phones
·PDAs/Handheld computers
·Safety illumination
·Portable instrumentation
·Battery-operated displays
·LCD modules
·Toys
·PDAs/Handheld computers
·Safety illumination
·Portable instrumentation
·Battery-operated displays
·LCD modules
·Toys
IMP803 Connection Diagram
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