HV857LK7-G
EL Lamp DRVR 5V 8-Pin DFN T/R
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RoHS 10 Compliant -
Tariff Charges
The Supertex HV857L is a low noise, high voltage driver designed for driving Electroluminescent (EL) lamps of up to five square inches. It is the low noise version of the EL lamp driver HV857. The input supply voltage range is from 1.8V to 5.0V. The device uses a single inductor and a minimum number of passive components. The nominal regulated output voltage that is applied to the EL lamp is ±95V. The chip can be enabled/disabled by connecting the resistor on RSW-Osc to VDD/ground. The HV857L has two internal oscillators, a switching MOSFET, and a high voltage EL lamp driver. The frequency for the switching MOSFET is set by an external resistor connected between the RSWOsc pin and the supply pin, VDD. The EL lamp driver frequency is set by an external resistor connected between the REL-Osc and VDD pins. An external inductor is connected between the LX and VDD pins, or VIN for split supply applications. A 0.003-0.1µF capacitor is connected between CS and ground. The EL lamp is connected between the VA and VB pins.
- Audible noise reduction
- 190 VPP output voltage for higher brightness
- Single cell lithium ion compatible
- 150nA shutdown current
- Wide input voltage range 1.8V to 5.0V
- Separately adjustable lamp and converter frequencies
- Output voltage regulation
- Split supply capability
- Available in 8-Lead DFN and 8-Lead MSOPpackages
Technical Attributes
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| Description | Value | |
|---|---|---|
| Matte Tin | ||
| 260 | ||
| Surface Mount | ||
| MSL 1 - Unlimited | ||
| -40 to 85 °C | ||
| 8DFN | ||
| 8 | ||
| 3 x 3 x 0.73 | ||
| Industrial | ||
| DFN |
ECCN / UNSPSC / COO
| Description | Value |
|---|---|
| Country of Origin: | RECOVERY FEE |
| ECCN: | EAR99 |
| HTSN: | 8541290040 |
| Schedule B: | 8541290040 |
Factory Lead Time: