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See Technical Specifications

HV9921N3-G

3-PIN Switch Mode LED Lamp Driver IC.

Manufacturer:

Microchip Technology, Inc
Mfr.Part #:

HV9921N3-G
Datasheet:

HV9921N3-G Datasheet (PDF)
Input Voltage:

- 0.3 V to 10 V
Supply Current - Max:

350 uA
Minimum Operating Temperature:

- 40 C
Maximum Operating Temperature:

+ 85 C
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HV9921N3-G General Description

The HV9921 is a pulse width modulated (PWM) high-efficiency LED driver control IC. It allows efficient operation of LED strings from voltage sources ranging up to 400VDC. The HV9921 includes an internal high voltage switching MOSFET controlled with fixed off-time (TOFF) of approximately 10.5μs. The LED string is driven at constant current, thus providing constant light output and enhanced reliability. The output current is internally fixed at 20mA for HV9921. The peak current control scheme provides good regulation of the output current throughout the universal AC line voltage range of 85 to 265VAC or DC input voltage of 20 to 400V.

Key Features

Constant output current: 20mA
Universal 85 - 265VAC operation
Fixed off-time buck converter
Internal 475V power MOSFET

Microchip Technology, Inc Original Stock

Specifications

Product Category:	LED Lighting Drivers	Input Voltage:	- 0.3 V to 10 V
Supply Current - Max:	350 uA	Minimum Operating Temperature:	- 40 C
Maximum Operating Temperature:	+ 85 C	Mounting Style:	Through Hole
Packaging:	Bulk	Pd - Power Dissipation:	740 mW
Product Type:	LED Lighting Drivers	Factory Pack Quantity:	1000
Subcategory:	Driver ICs	Unit Weight:	0.016000 oz
Tags	HV9921N, HV9921, HV992, HV99, HV9

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Ratings and Reviews

Z**y 04/10/2024

The display is very small!Be careful, width ~ 2 cm!Another time i will order something much more.Did not check, the product collects another person.Shipping took paid avaq standard shipping. ~ 5 days from order to receipt.

N**h 05/28/2022

very fast delivery, ordered May 27, delivered May 17 to Slovakia

A**r 04/22/2022

Probably should have been shipped in an ESD bag, but it’s cheap enough not to worry about. Yet to test them but no reason to believe they won’t work, they are I ubiquitous.

A**r 05/10/2020

Product is good and works well as described