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HV9901

Universal Relay Driver

Status: In Production

Features:

  • 10 to 450V input voltage range
  • Energy saving hold current mode
  • Adjustable microcontroller supply
  • Low supply current <1.0mA
  • Constant current coil
  • Programmable pull-in current, pull-in time, and hold current
  • Efficient PWM operation using the relay coils’ inductance
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Overview
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RoHS Information
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Device Overview

Summary

The HV9901 universal relay driver provides high-efficiency driving for low-voltage relays with supply voltages as high as 450V. For example, a relay with a 5V coil can be driven directly from the rectified 120 VAC or 230 VAC line.

The IC includes two high-voltage linear regulators. The first one is for providing power to internal control circuitry. The second one has an adjustable output voltage and a 1 mA output current capability to support external circuitry, such as a microcontroller control circuit.

The pull-in current, pull-in time and hold current for the relay are individually programmable through two resistors and a capacitor. PWM switching can be synchronized with an external clock or with another HV9901 operating at a higher frequency.

The relay is operated through the enable input ENI. Logic polarity is under control of the polarity input POL. Audible noise coming from the relay can be suppressed by operating at a PWM frequency exceeding 20 kHz.

 

Additional Features
    • 10 to 450V input voltage range
    • Energy saving hold current mode
    • Adjustable microcontroller supply
    • Low supply current <1.0mA
    • Constant current coil
    • Programmable pull-in current, pull-in time, and hold current
    • Efficient PWM operation using the relay coils’ inductance
Parametrics
Name
Value
+Vin min (V)
10
+Vin max (V)
450
Iin max (mA)
2
Oscillator Frequency min (kHz)
20
Oscillator Frequency max (kHz)
140
Oscillator Frequency fsync max (kHz)
150
Max Output Duty Cycle (%)
99.50
Typical Current Sense Pull-In (V)
.883
Typical Current Sense Hold
Adjustable
External Adjustable Regulator Output Voltage (V)
2.0 - 5.5
External Adjustable Regulator Output Current (mA)
0 - 1.0
Package
SOIC-16

Documents

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Price 5K
$2.63

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
HV9901NG-G
0.127800
0.311111
14
SOIC
.150In(3.90mm)
Matte Tin
e3
HV9901NG-G-M901
0.127800
0.294615
14
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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