Power & Power Management

Renesas offers a wide selection of PWM controllers designed for switch-mode DC/DC and AC/DC power supplies requiring an isolation transformer, such as off-line AC/DC and -48V telecom-input DC/DC converters. Included in this broad controllers and converters portfolio are single-ended and double-ended isolated PWM controllers, as well as zero voltage switching (ZVS) full bridge controllers.

Use the following table to identify which products will best meet the needs of your next isolated power project:

Topology Characteristic Flyback Forward (Two Switch) Active Clamp Forward Push-Pull Half-Bridge Full-Bridge ZVS Full Bridge (Telecom) Hard SW
Recommended Power Level <150W 120W~200W 120- 400W 100W~500W 150W~500W >400W >400W
Efficiency Least
~70-80%		 Moderate
~ 80-90%		 High
85~92%		 Moderate
~ 85-93%		 High
~ 95%+		 High
~ 95%+		 High
~ 95%+
Recommended Devices ISL884x
ISL672x		 ISL672x ISL6726 ISL6741 ISL674x ISL675x ISL674x
PFC Stage ISL673x
Cost Least Low Low Low Medium High High
Transfer Function = Vout/Vin (Ns/Np)*D/(1-D) (Ns/Np)*D (Ns/Np)*D 2*(Ns/Np)*D (Ns/Np)*D 2*(Ns/Np)*D 2*(Ns/Np)*D
High Input Voltage Good for bias supply Good for 2-switch forward Good Not recommended Good Good Good
Max. Duty Cycle < 100% < 50% (70% with active clamp) 70% < 50% each < 50% each < 50% each < 50% each

Family Values

  • Full family features AC/DC solution with the smallest package
  • Unique output current sensing scheme
  • Unique brick wall OCP protection feature
  • Unique full bridge zero voltage switching (ZVS) control scheme
  • Optimized/Adjustable dead time control

Applications

  • AC/DC power supply
  • Brick convertor
  • Power factor correction (PFC) board
  • AC/DC Adapter

Categories

Flyback & Forward Controllers

Current mode PWM controllers for flyback, forward and general switch mode power supplies

Half-Bridge & Hard-Switched Full Bridge Controllers

Power conversion using half-bridge, full bridge and push-pull configurations

Non-Isolated AC/DC Buck Converters

700V non-isolated AC/DC regulators with ultra-low standby power and low EMI

Power Factor Correction (PFC) Controllers

PFC controllers for AC/DC power systems up to 2kW and over the universal line input

Secondary-side ICs and RapidCharge Protocol ICs

65W+ chargers that are 30% or smaller than existing brick adapters

Zero Voltage Switching (ZVS) Full Bridge Controllers

High-performance, low-pin-count alternative ZVS full bridge PWM controllers

Documentation

Title
Type 		Date
Industrial Power Management Brochure
PDF 5.51 MB 日本語 		Brochure
Intersil Commercial Lab Services
PDF 467 KB 		Brochure
AC/DC Power Management ICs
PDF 5.17 MB 简体中文 		Brochure
How Green is Your Cloud?
PDF 295 KB 		White Paper
AN1387: White LED Driver Circuits for Off-Line Applications using Standard PWM Controllers
PDF 746 KB 		Application Note
AN1262: Designing with the ISL6752, ISL6753 ZVS Full-Bridge Controllers
PDF 581 KB 		Application Note
AN1246: Techniques To Improve ZVS Full-bridge Performance
PDF 725 KB 		Application Note
AN1619: Designing with ISL6752DBEVAL1Z and ISL6754DBEVAL1Z Control Cards
PDF 1.49 MB 		Application Note
AN1681: Grounding Techniques
PDF 509 KB 		Application Note
AN1684: Nonideality of Ground
PDF 397 KB 		Application Note
AN1245: iSim ISL6742 Virtual Evaluation Platform
PDF 1.05 MB 		Application Note
AN1002: 200W, 470kHz, Telecom Power Supply Using ISL6551 Full-Bridge Controller and ISL6550 Supervisor and Monitor
PDF 4.30 MB 		Application Note
AN9867: End of Life Derating: A Necessity or Overkill
PDF 338 KB 		Application Note
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