iW1677-03
ActivePRIMACCURATE™ OFF-LINE DIGITAL PWM CONTROLLER IN A SOT-23 PACKAGE
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iW1677-03
ActivePRIMACCURATE™ OFF-LINE DIGITAL PWM CONTROLLER IN A SOT-23 PACKAGE
Deep-Dive with AI
Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | iW1677-03 | iW1677 Series |
|---|---|---|
| Control Features | - | Soft Start, EN |
| Fault Protection | - | Short Circuit, Current Limiting, Over Voltage |
| Frequency - Switching | - | 72 kHz |
| Internal Switch(s) | - | False |
| Mounting Type | - | Surface Mount |
| null | - | |
| Operating Temperature | - | 150 °C |
| Output Isolation | - | Isolated |
| Package / Case | - | SOT-23-6 |
| Supplier Device Package | - | SOT-23-6 |
| Topology | - | Flyback |
| Voltage - Start Up | - | 11 V |
| Voltage - Supply (Vcc/Vdd) | - | 16 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
iW1677 Series
PrimAccurate™ Off-Line Digital PWM Controller in a SOT-23 Package
| Part | Internal Switch(s) | Mounting Type | Package / Case | Fault Protection | Supplier Device Package | Voltage - Supply (Vcc/Vdd) | Topology | Frequency - Switching | Operating Temperature | Control Features | Voltage - Start Up | Output Isolation |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Renesas Electronics Corporation IW1677-01 | ||||||||||||
Renesas Electronics Corporation IW1677-01 | Surface Mount | SOT-23-6 | Current Limiting, Over Voltage, Short Circuit | SOT-23-6 | 16 V | Flyback | 72 kHz | 150 °C | EN, Soft Start | 11 V | Isolated | |
Renesas Electronics Corporation IW1677-05 | ||||||||||||
Renesas Electronics Corporation IW1677-05 | Surface Mount | SOT-23-6 | Current Limiting, Over Voltage, Short Circuit | SOT-23-6 | 16 V | Flyback | 72 kHz | 150 °C | EN, Soft Start | 11 V | Isolated | |
Renesas Electronics Corporation IW1677-00 | Surface Mount | SOT-23-6 | Current Limiting, Over Voltage, Short Circuit | SOT-23-6 | 16 V | Flyback | 72 kHz | 150 °C | EN, Soft Start | 11 V | Isolated | |
Renesas Electronics Corporation IW1677-00 | ||||||||||||
Renesas Electronics Corporation iW1677-03 |
Description
General part information
iW1677 Series
The iW1677 is a high-performance AC/DC controller designed to drive a low-cost bipolar junction transistor (BJT) power switch in peak current mode PWM flyback power supplies up to 5W. Ideal for power adapters for smartphones, the iW1677 integrates Renesas' PrimAccurate™ digital primary-side control, eliminating the need for the secondary-side optocoupler, and reducing component count and solution cost.
The iW1677 integrates an active start-up circuit that allows for fast turn-on without impacting operating current consumption. The device easily meets the US DoE’s external power supply standard and the EU’s Code of Conduct, Version 5, Tier 2 standard, with a no-load power consumption of less than 20mW. 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
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