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HV825

High Voltage, EL Lamp Driver IC

Status: In Production

Features:

  • Processed with HVCMOS® technology
  • 1.0 to 1.6V operating supply voltage
  • DC to AC conversion
  • Output load of typically up to 6.0nF
  • Adjustable output lamp frequency
  • Adjustable converter frequency
  • Enable function
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Overview
Documents
Development Environment
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RoHS Information
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Device Overview

Summary

HV825 is a high voltage driver designed for driving EL lamps typically up to 6.0nF. The input supply voltage range is from 1.0V to 1.6V. The device uses a single inductor and a minimum number of passive components. The typical output voltage that can be applied to the EL lamp is ±56V. The HV825 can be enabled/disabled by connecting the RSW-Osc resistor to VDD/GND. The HV825 has two internal oscillators, a switching bipolar junction transistor (BJT), and a high voltage EL lamp driver. The frequency for the switching BJT is set by an external resistor connected between the RSW-Osc pin and the VDD supply pin. The EL lamp driver frequency is set by an external resistor connected between REL-Osc pin and the VDD pin. An external inductor is connected between the LX and VDD pins. A 0.01 to 0.1µF, 100V capacitor is connected between the CS pin and the GND pin. The EL lamp is connected between the VA pin and the VB pin. The switching BJT charges the external inductor and discharges it into the 0.01 to 0.1µF, 100V capacitor at the CS pin. The voltage at the CS pin will start to increase. The outputs VA and VB are configured as an H-bridge and are switching in opposite states to achieve a peak-to-peak voltage of two times the VCS voltage across the EL lamp.

Additional Features
  • Processed with HVCMOS® technology
  • 1.0 to 1.6V operating supply voltage
  • DC to AC conversion
  • Output load of typically up to 6.0nF
  • Adjustable output lamp frequency
  • Adjustable converter frequency
  • Enable function
Parametrics
Name
Value
Type
Single Lamp Driver
Input Voltage Low (V)
1.0
Input Voltage High (V)
1.6
Nominal Output Voltage (V)
±56
Max Switch Resistance(Ω)
15
Max Lamp Size per Device (in2)
3.0
Package
SOIC-8, MSOP-8
Product Type
Single Lamp Drivers
Frequency (EL, Typical)
400Hz (min)
Θja (C/W)
101, 216
VOUT
112

Documents

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Application Notes

User Guides

06/24/2015
569KB

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
HV825MG-G
0.025600
0.215600
8
MSOP
3x3mm
Matte Tin
e3
HV825LG-G
0.078000
0.230303
8
SOIC
.150In(3.90mm)
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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