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IW1706-03 - iW1706 Functional Block Diagram

IW1706-03

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Renesas Electronics Corporation

PRIMACCURATE™ OFF-LINE DIGITAL PWM CONTROLLER IN A SOT-23 PACKAGE

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IW1706-03 - iW1706 Functional Block Diagram

IW1706-03

Active
Renesas Electronics Corporation

PRIMACCURATE™ OFF-LINE DIGITAL PWM CONTROLLER IN A SOT-23 PACKAGE

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Technical Specifications

Parameters and characteristics commom to parts in this series

SpecificationIW1706-03iW1706 Series
--
Control FeaturesSoft Start, ENSoft Start, EN
Fault ProtectionShort Circuit, Current Limiting, Over VoltageShort Circuit, Current Limiting, Over Voltage
Frequency - Switching72 kHz72 kHz
Internal Switch(s)FalseFalse
Mounting TypeSurface MountSurface Mount
Operating Temperature150 °C150 °C
Output IsolationIsolatedIsolated
Package / CaseSC-74A, SOT-753SC-74A, SOT-753
Supplier Device PackageSOT-23-5SOT-23-5
TopologyFlybackFlyback
Voltage - Start Up11 V11 V
Voltage - Supply (Vcc/Vdd)16 V16 V

Pricing

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

DistributorPackageQuantity$
DigikeyTape & Reel (TR) 6000$ 0.25
15000$ 0.24
30000$ 0.23

iW1706 Series

PrimAccurate™ Off-Line Digital PWM Controller in a SOT-23 Package

PartMounting TypeFault ProtectionControl FeaturesTopologyInternal Switch(s)Frequency - SwitchingOperating TemperaturePackage / CaseOutput IsolationVoltage - Supply (Vcc/Vdd)Voltage - Start UpSupplier Device Package
Renesas Electronics Corporation
IW1706-01
Surface Mount
Current Limiting, Over Voltage, Short Circuit
EN, Soft Start
Flyback
72 kHz
150 °C
SC-74A, SOT-753
Isolated
16 V
11 V
SOT-23-5
Renesas Electronics Corporation
IW1706-01
Renesas Electronics Corporation
iW1706-00
Renesas Electronics Corporation
IW1706-03
Renesas Electronics Corporation
IW1706-03
Surface Mount
Current Limiting, Over Voltage, Short Circuit
EN, Soft Start
Flyback
72 kHz
150 °C
SC-74A, SOT-753
Isolated
16 V
11 V
SOT-23-5

Description

General part information

iW1706 Series

The iW1706 is a high-performance AC/DC controller designed to drive an external power bipolar junction transistor (BJT) for peak current mode PWM flyback power supplies. Ideal for networking power supplies in applications such as ADSL modems and wireless access points, the iW1706 integrates a proprietary soft-start feature that allows for a smooth, yet fast start-up into capacitive loads between 330µF to 6000µF.

The iW1706 meets the US DoE’s external power supply standard and the EU’s Code of Conduct, Version 5, Tier 1 standard with no-load power consumption less than 100mW. As a PrimAccurate™ controller, which uses primary-side control algorithms, the iW1706 does not need any direct secondary-side feedback components, eliminating the need for optocouplers, and reducing component count and solution cost. Additional features include Renesas' proprietary EZ-EMI™ technology, quasi-resonant control for optimal efficiency at heavy loads, cable and connector voltage drop compensation options, full protection from fault conditions, and tiny packaging.

Documents

Technical documentation and resources