IW3637-03

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Renesas Electronics Corporation

SECOND-STAGE BUCK LED DRIVER WITH EXCEPTIONAL DEEP DIMMING PERFORMANCE FOR COMMERCIAL LIGHTING APPLICATIONS

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IW3637-03

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Renesas Electronics Corporation

SECOND-STAGE BUCK LED DRIVER WITH EXCEPTIONAL DEEP DIMMING PERFORMANCE FOR COMMERCIAL LIGHTING APPLICATIONS

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Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	IW3637-03

Applications	General Purpose
Current - Output / Channel [custom]	20 mA
Dimming	Analog, PWM
Frequency	90 kHz, 72 kHz
Internal Switch(s)	False
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	150 °C
Operating Temperature [Min]	-40 °C
Package / Case	8-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Supplier Device Package	8-SOIC
Topology	Step-Down (Buck)
Type	AC DC Offline Switcher
Voltage - Supply (Max)	30 V
Voltage - Supply (Min) [Min]	7.5 V

iW3637 Series

Second-Stage Buck LED Driver with Exceptional Deep Dimming Performance for Commercial Lighting Applications

Part	Type	Applications	Current - Output / Channel [custom]	Voltage - Supply (Max)	Package / Case	Package / Case [y]	Package / Case [x]	Number of Outputs	Frequency	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Topology	Mounting Type	Dimming	Voltage - Supply (Min) [Min]
Renesas Electronics Corporation IW3637-03	AC DC Offline Switcher	General Purpose	20 mA	30 V	8-SOIC	3.9 mm	0.154 in	1	72 kHz 90 kHz	8-SOIC	150 °C	-40 °C	Step-Down (Buck)	Surface Mount	Analog PWM	7.5 V
Renesas Electronics Corporation IW3637-01	AC DC Offline Switcher			30 V	8-SOIC	3.9 mm	0.154 in	1	72 kHz 90 kHz	8-SOIC	150 °C	-40 °C	Step-Down (Buck)	Surface Mount	Analog PWM	7.5 V
Renesas Electronics Corporation IW3637-05	AC DC Offline Switcher			30 V	8-SOIC	3.9 mm	0.154 in	1	72 kHz 90 kHz	8-SOIC	150 °C	-40 °C	Step-Down (Buck)	Surface Mount	Analog PWM	7.5 V
Renesas Electronics Corporation IW3637-03A	AC DC Offline Switcher			30 V	8-SOIC	3.9 mm	0.154 in	1	72 kHz 90 kHz	8-SOIC	150 °C	-40 °C	Step-Down (Buck)	Surface Mount	Analog PWM	7.5 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tape & Reel (TR)	5000	$ 0.34
		12500	$ 0.32
		25000	$ 0.31

Description

General part information

iW3637 Series

The iW3637 high-voltage, second-stage buck LED driver provides constant current to LEDs directly from DC power supplies. It supports non-isolated buck and flyback converter topologies to post-regulate from a PFC AC/DC boost converter, minimizing low-frequency output ripple current and eliminating virtually all flicker in the system, even down to 1%.

A wide range of DC input voltages simplifies design by enabling the use of just one second-stage driver across any commercial lighting product portfolio.

Documents

Technical documentation and resources