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HV9971LG-G The Microchip Technology HV9971LG-G is an AC DC Offline Switcher LED Driver IC. It operates from 80VAC with a 100kHz switching frequency and supports PWM dimming.
Mfr Part #:

HV9971LG-G

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology HV9971LG-G is an AC DC Offline Switcher LED Driver IC. It operates from 80VAC with a 100kHz switching frequency and supports PWM dimming.
✓ Total Stock: 3,000 pcs
$ Price Range: $0.17

HV9971LG-G Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Risen Electronics ✓
Non-Authorised Inventory information
3,000 pcs
On Request
3000 pcs On Request 1 On Request On Request On Request On Request 2026-02-23 21:33:16
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

HV9971LG-G Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Dimming
Frequency
Internal Switch(s)
Lead Spacing
Mounting Type
Number of Outputs
Operating Temperature
Supplier Device Package
Tape & Reel
Topology
Type
Voltage
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HV9971LG-G Description

Short technical summary and product information.

The HV9971LG-G from Microchip Technology is a primary-side control IC designed for driving discontinuous conduction mode (DCM) flyback LED drivers. It is optimized for universal 80-264VAC input operation and features a constant full-load switching frequency of 100kHz.

 

This LED driver IC offers programmable true constant current operation with ±3% LED current accuracy. It incorporates primary-side current sensing and is adaptive to external component tolerances. Protection features include output open circuit, output short circuit, and input under-voltage lockout. The device also supports PWM dimming via a logic input.

 

Designed for low-power lighting fixtures, the HV9971LG-G is suitable for applications such as incandescent bulb retrofits. It is housed in an 8-SOIC package and is designed for surface mount applications. The operating temperature range is -40°C to 125°C (TA).

HV9971LG-G Quick Information

Product Type: LED Driver IC
Canonical Name: HV9971LG-G AC DC Offline Switcher LED Driver IC
Subcategory: Power Management ICs

HV9971LG-G Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

HV9971LG-G Estimated Pricing

Qty Low High
1+ $0.17 $0.17

Estimated market price range - modelled values for guidance only, not live distributor offers.

HV9971LG-G Features

  • Programmable true constant current operation.
  • ±3% LED current accuracy.
  • Universal 80-264VAC input operation.
  • Fixed frequency operation at 100kHz.
  • PWM dimming and enable input.

HV9971LG-G Applications

  • Ideal for low power lighting fixtures.
  • Used in incandescent bulb retrofits.
  • Drives high-brightness LED arrays efficiently.
  • Provides isolated constant current output.
  • Operates from universal 80-264VAC input.

HV9971LG-G FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage of the HV9971LG-G?

The operating voltage is 80VAC.

What is the operating temperature range of the HV9971LG-G?

The operating temperature range is -40°C to 125°C.

What package is the HV9971LG-G available in?

The package is 8-SOIC (0.154", 3.90mm Width) surface mount.

What is the switching frequency of the HV9971LG-G?

The typical switching frequency is 100kHz at full load.

What is the LED current accuracy of the HV9971LG-G?

The LED current accuracy is ±3%.

What topology does the HV9971LG-G use?

It uses flyback topology.

Does the HV9971LG-G support dimming?

Yes, it supports PWM dimming.

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