Features
- 1A MOSFET gate driver
- 100μA start-up current
- Fast transient response with peak current mode control
- Adjustable switching frequency up to 1MHz
- Bidirectional synchronization
- Low power disable mode
- Delayed restart from OV and OC shutdown faults
- Adjustable slope compensation
- Adjustable soft-start
- Adjustable overcurrent shutdown threshold
- Adjustable UV and OV monitors
- Leading edge blanking
- Integrated thermal shutdown
- 1% tolerance voltage reference
- Pb-free available (RoHS compliant)
ISL6721 Functional Diagram
Description
The ISL6721 is a low power, single-ended Pulse Width Modulating (PWM) current mode controller designed for a wide range of DC/DC conversion applications including Boost, Flyback and isolated output configurations. Peak current mode control effectively handles power transients and provides inherent overcurrent protection. Other features include a low power mode where the supply current drops to less than 200μA during overvoltage and overcurrent shutdown faults. This advanced BiCMOS design features low operating current, adjustable operating frequency up to 1MHz, adjustable soft-start, and a bidirectional SYNC signal that allows the oscillator to be locked to an external clock for noise sensitive applications.
Applications
- Telecom and Datacom Power
- Wireless Base Station Power
- File Server Power
- Industrial Power Systems
- Isolated Buck and Flyback Regulators
- Boost Regulators
| Part Number | Status | Samples | Stock | RoHS | Package | Lead Count (#) | Carrier Type | Moisture Sensitivity Level (MSL) | Pitch (mm) | Pkg. Dimensions (mm) | Pb (Lead) Free | Pb Free Category | Temp. Range (°C) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ISL6721ABZ | Obsolete | N/A | In Stock | RoHS:EN | SOIC | 16# | Tube | 3 | 1.3mm | 9.9 x 3.9 x 0.00 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +105°C |
| ISL6721ABZ-T | Obsolete | N/A | Out of Stock | RoHS:EN | SOIC | 16# | Reel | 3 | 1.3mm | 9.9 x 3.9 x 0.00 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +105°C |
| ISL6721AVZ | Obsolete | N/A | In Stock | RoHS:EN | TSSOP | 16# | Tube | 1 | 0.7mm | 5.0 x 4.4 x 0.00 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +105°C |
| ISL6721AVZ-T | Obsolete | N/A | Out of Stock | RoHS:EN | TSSOP | 16# | Reel | 1 | 0.7mm | 5.0 x 4.4 x 0.00 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +105°C |
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- Product Change NoticePDF 131 KB PCN21006 Jan 25, 2021
- Product Change NoticePDF 266 KB Jun 04, 2020
- Product Change NoticePDF 218 KB PCN16026 Feb 18, 2016
- End Of Life NoticePDF 200 KB PLC14051E Jan 27, 2016
- Product Change NoticePDF 398 KB PCN15046 Jan 07, 2016
- End Of Life NoticePDF 124 KB PLC14051A Sep 18, 2014
- Product Change NoticePDF 223 KB PCN13060 Oct 30, 2013
- Product Change NoticePDF 77 KB PCN13026 Apr 01, 2013
- Product Change NoticePDF 98 KB PCN12094 Dec 19, 2012
- Product Change NoticePDF 108 KB PCN12068 Aug 21, 2012
- Application NotePDF 397 KB an1684 Jan 19, 2004AI-generated Summary: The document outlines important legal disclaimers and usage guidelines for semiconductor products. It emphasizes user responsibility for product design and safety, disclaims liability for damages, and clarifies no intellectual property licenses are granted. Products are categorized by quality grades with specific application recommendations. Users must comply with laws, avoid unauthorized modifications, and ensure safe use within specified conditions. Contact details for Renesas Electronics sales offices worldwide are provided.
- Application NotePDF 509 KB an1681 Jan 19, 2004AI-generated Summary: The document explains grounding techniques for PCB layouts using a dual op amp example on a single-layer copper board. It compares three grounding schemes: a center spine ground trace, an outer ground plane, and a split/star ground plane, highlighting the benefits of single-point grounding to minimize noise and antenna effects. It emphasizes following current paths, minimizing loop lengths, and ensuring close forward and return paths to reduce interference. The document also includes disclaimers on product use, quality grades, safety, and legal compliance.
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- Application NotePDF 397 KB an1684 Jan 19, 2004AI-generated Summary: The document outlines important legal disclaimers and usage guidelines for semiconductor products. It emphasizes user responsibility for product design and safety, disclaims liability for damages, and clarifies no intellectual property licenses are granted. Products are categorized by quality grades with specific application recommendations. Users must comply with laws, avoid unauthorized modifications, and ensure safe use within specified conditions. Contact details for Renesas Electronics sales offices worldwide are provided.
- Application NotePDF 509 KB an1681 Jan 19, 2004AI-generated Summary: The document explains grounding techniques for PCB layouts using a dual op amp example on a single-layer copper board. It compares three grounding schemes: a center spine ground trace, an outer ground plane, and a split/star ground plane, highlighting the benefits of single-point grounding to minimize noise and antenna effects. It emphasizes following current paths, minimizing loop lengths, and ensuring close forward and return paths to reduce interference. The document also includes disclaimers on product use, quality grades, safety, and legal compliance.
Application Notes & White Papers (2)
- Product Change NoticePDF 131 KB PCN21006 Jan 25, 2021
- Product Change NoticePDF 266 KB Jun 04, 2020
- Product Change NoticePDF 218 KB PCN16026 Feb 18, 2016
- End Of Life NoticePDF 200 KB PLC14051E Jan 27, 2016View More (11)
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ISL6722A PIN sleep configuration
Hello For ISL6721A, pin 3 is sync which can be float. So in our DCDC board this pin is float. Now we want to use ISL6722A to replace ISL6721A for our DCDC board due to ISL6721A shortage. Refer to ISL6722A, pin 3 is sleep. Can pin sleep be float? We ...
May 17, 2023
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