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Microchip HV9901 | Demoboard MCP1663 USB Programmable Power Supply Demo

Universal Relay Driver Reference Design

Overview

TopologyOther Topology
IC revisionA

Description

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.

Features

  • 10V to 450V Input Voltage Range
  • Energy-saving Hold Current Mode
  • Adjustable Microcontroller Supply
  • Low Supply Current <1 mA
  • Constant-current Coil Drive
  • Programmable Pull-in Current, Pull-in Time and Hold Current

Typical applications

  • Industrial Controls, Relay Timers, Solenoid Drivers, Home Automation

Parts approved by Microchip

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
Pins
Application
PCB/Cable/Panel
Modularity
Type
Wire Section
λDom typ.(nm)
Emitting Color
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IV typ.(mcd)
VF typ.(V)
Chip Technology
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Tol. C
VR(V (DC))
Size
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DF(%)
RISO
Ceramic Type
L(mm)
W(mm)
Fl(mm)
Packaging
Interface Type
Gender
Mount
PCB Thickness(mm)
IR(A)
Working Voltage(V (AC))
H(mm)
Operation Force(g)
Electrical Life(Cycles)
Actuator Color
Vaporphase process
SamplesAvailability & Sample
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SPECWR-PHD Pin Header - Single, 2, –
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Pins2 
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TypeStraight 
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Operating Temperature -40 °C up to +105 °C
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Insulation Resistance1000 MΩ
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Length5.08 mm
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PackagingBag 
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GenderPin Header 
MountTHT 
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Rated Current3 A
Working Voltage250 V (AC)
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SPECWR-PHD Pin Header - Single, 3, –
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Pins3 
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TypeStraight 
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Operating Temperature -40 °C up to +105 °C
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Insulation Resistance1000 MΩ
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Length7.62 mm
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PackagingBag 
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GenderPin Header 
MountTHT 
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Rated Current3 A
Working Voltage250 V (AC)
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SPECWR-TBL Series 1377 - Wire Protector 5.00mm pitch - Horizontal cable entry - THT, 3, Wire Protector
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iProduction is active. Expected lifetime: >10 years.
Pins3 
ApplicationWire Protector 
PCB/Cable/PanelPCB 
ModularityNo 
TypeHorizontal 
Wire Section 12 to 30 (AWG) 0.5 to 2.5 (mm²)
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Operating Temperature -30 °C up to +110 °C
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Length15 mm
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PackagingBox 
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MountTHT 
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Rated Current24 A
Working Voltage250 V (AC)
Height11.5 mm
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SPECWR-PHD Pin Header - Single, 4, –
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Pins4 
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Operating Temperature -40 °C up to +105 °C
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Insulation Resistance1000 MΩ
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Length10.16 mm
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PackagingBag 
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GenderPin Header 
MountTHT 
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Rated Current3 A
Working Voltage250 V (AC)
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SPECWR-USB Mini/Micro Connectors, 5, Micro USB 2.0
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Pins5 
ApplicationMicro USB 2.0 
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TypeHorizontal 
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Operating Temperature -40 °C up to +85 °C
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Insulation Resistance1000 MΩ
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PackagingTape and Reel 
Interface TypeType AB 
GenderReceptacle 
MountSMT 
PCB Thickness1.2 mm
Rated Current1.8 A
Working Voltage30 V (AC)
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SPECWL-SMCW SMT Mono-color Chip LED Waterclear, –, –
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Dominant Wavelength [typ.]625 nm
Emitting ColorRed 
Peak Wavelength [typ.]630 nm
Luminous Intensity [typ.]250 mcd
Forward Voltage [typ.]2 V
Chip TechnologyAlInGaP 
Viewing Angle Phi 0° [typ.]140 °
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Size0603 
Operating Temperature -40 °C up to +85 °C
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Length1.6 mm
Width0.8 mm
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PackagingTape and Reel 
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MountSMT 
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Height0.7 mm
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SPECWL-SMCW SMT Mono-color Chip LED Waterclear, –, –
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iProduction is active. Expected lifetime: >10 years.
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Dominant Wavelength [typ.]570 nm
Emitting ColorBright Green 
Peak Wavelength [typ.]572 nm
Luminous Intensity [typ.]40 mcd
Forward Voltage [typ.]2 V
Chip TechnologyAlInGaP 
Viewing Angle Phi 0° [typ.]140 °
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Size0603 
Operating Temperature -40 °C up to +85 °C
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Length1.6 mm
Width0.8 mm
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MountSMT 
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Height0.7 mm
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SPECWCAP-CSGP MLCCs 50 V(DC), –, –
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Capacitance100 nF
Capacitance±10% 
Rated Voltage50 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Dissipation Factor3 %
Insulation Resistance5 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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Height0.8 mm
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SPECWCAP-CSGP MLCCs 25 V(DC), –, –
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Capacitance1 µF
Capacitance±20% 
Rated Voltage25 V (DC)
Size0603 
Operating Temperature -55 °C up to +85 °C
Dissipation Factor10 %
Insulation Resistance0.5 GΩ
Ceramic TypeX5R Class II 
Length1.6 mm
Width0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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Height0.8 mm
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SPECWS-TASV SMT Tact Switch 6x6 mm, –, –
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Rated Voltage12 V (DC)
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Operating Temperature -40 °C up to +85 °C
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Insulation Resistance100 MΩ
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PackagingTape and Reel 
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Rated Current0.05 A
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Height4.3 mm
Operation Force160 g
Electrical Life1000000 Cycles
Actuator ColorBlack 
Vaporphase processnot specified 
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