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HV853

High Voltage, Low Noise, Inductorless EL Lamp Driver

Status: In Production

Features:

  • No external components required when using an external EL clock frequency
  • Audible noise reduction with improved EMI
  • EL frequency can be set by an external resistor
  • DC to AC converter
  • Drives up to 5.3nF (approx. 1.5in2 lamp) load
  • Output voltage regulation
  • Enable function
  • EL Lamp dimming
  • Available in 10-Lead DFN and 8-Lead MSOP packages
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Overview
Documents
Development Environment
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RoHS Information
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Device Overview

Summary

HV853 is a high voltage, low noise EL (electroluminescent) lamp driver. It is the low noise version of the HV852 with improved EMI performance, operating over an input voltage range of 3.2V to 5.0V. It is designed to drive EL lamps of up to 1.5in2, with capacitive values up to 5.3nF. The HV853 converts a low voltage DC input to a high voltage AC output across an EL lamp. A nominal regulated output voltage of ±80V is applied to the EL lamp. It uses a charge pump scheme to boost the input voltage eliminating the need for an external inductor, diode, and high voltage capacitor commonly found in conventional topologies. The charge pump circuit discharges its energy into an EL lamp through a high voltage H-bridge. Once the voltage reaches its regulated limit, it is turned off to conserve power. The EL lamp is then discharged to ground and the H-bridge changes state to allow the charge pump to charge the EL lamp in the opposite direction. The EL lamp frequency can be set either by an external resistor REL or by applying an external clock where the clock frequency is divided by 128 to set the EL lamp frequency.

Additional Features
    • No external components required when using an external EL clock frequency
    • Audible noise reduction with improved EMI
    • EL frequency can be set by an external resistor
    • DC to AC converter
    • Drives up to 5.3nF (approx. 1.5in2 lamp) load
    • Output voltage regulation
    • Enable function
    • EL Lamp dimming
    • Available in 10-Lead DFN and 8-Lead MSOP packages
Parametrics
Name
Value
Type
Single Inductorless Lamp Driver
Input Voltage Low (V)
3.2
Input Voltage High (V)
5
Nominal Output Voltage (V)
±80
Max Switch Resistance(Ω)
--
Output Regulation
Yes
Max Lamp Size per Device (in2)
1.5
Package
MSOP-8, DFN-10
Frequency (EL, Typical)
240Hz - 320Hz
Θja (C/W)
--
VOUT
160

Documents

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User Guides

06/23/2015
304KB

Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
HV853DB1 Demo Board
HV853DB1 Demo Board ( HV853DB1 )

The HV853DB1 demoboard contains all the necessary circuitry to demonstrate the features of the HV853 EL lamp driver. The HV853 is the low noise version of the EL driver HV852 with improved EMI performance.

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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
HV853MG-G
0.025600
0.215600
8
MSOP
3x3mm
Matte Tin
e3
HV853K7-G
0.024460
0.122424
10
WDFN
3x3x0.8mm
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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