Supply Controllers. TFS757HG Datasheet

TFS757HG Datasheet PDF, Equivalent


Part Number

TFS757HG

Description

(PFS757 - PFS764) Combined Two-Switch Forward and Flyback Power Supply Controllers

Manufacture

Power Integrations

Total Page 30 Pages
PDF Download
Download TFS757HG Datasheet PDF


TFS757HG Datasheet
TFS757-764HG
HiperTFSFamily
Combined Two-Switch Forward and Flyback Power Supply Controllers
with Integrated High Voltage MOSFETs
Key Benefits
Single chip solution for two-switch forward main and flyback
standby
High integration allows smaller form factor and higher power
density designs
Incorporates control, gate drivers, and three power
MOSFETS
Level shift technology eliminates need for pulse transformer
Protection features include: UV, OV, OTP, OCP, and SCP
Transformer reset control
Prevents transformer saturation under all conditions
Allows >50% duty cycle operation
Reduces primary side RMS currents and conduction losses
Standby supply provides built-in overload power compensation
Up to 434 W total output power in a highly compact package
Up to 550 W peak
High efficiency solution easily enables design to meet
stringent efficiency specifications
>90% efficiency at full load
No-load regulation and low losses at light-load
Simple clip mounting to heat sink without need for insulation pad
Halogen free and RoHS compliant
Applications
PC
Printer
LCD TV
Video game consoles
High-power adapters
Industrial and appliance high-power adapters
Output Power Table
Product
TFS757HG
TFS758HG
TFS759HG
TFS760HG
TFS761HG
TFS762HG
TFS763HG
TFS764HG
Two-Switched Forward
380 V
Continuous Continuous
(25 °C)
(50 °C)
Peak
(50 °C)
193 W
163 W
228 W
236 W
200 W
278 W
280 W
235 W
309 W
305 W
258 W
358 W
326 W
276 W
383 W
360 W
304 W
407 W
388 W
327 W
455 W
414 W
344 W
530 W
Table 1. Output Power Table (See Notes on page 13).
Flyback
100 V - 400 V
50 °C
20 W
20 W
20 W
20 W
20 W
20 W
20 W
20 W
HiperTFS VDDH
L
HD
HS
D
DC
Input
Control,
Gate Drivers,
FB Level Shift
R
DSB
FB
EN
EN
BP
GS
Figure 1. Simplified Schematic of Two-Switch Forward and Flyback Converter.
www.power.com
Two-Switch Forward
Transformer
Flyback
Transformer
Main Output
Auxiliary/Standby
Output
RTN
EN FB
PI-6200-102910
April 2015

TFS757HG Datasheet
TFS757-764HG
Section List
Description................................................................................................................................................................... 3
Product Highlights....................................................................................................................................................... 3
Pin Functional Description.......................................................................................................................................... 5
Pin Configuration....................................................................................................................................................... 5
Functional Block Diagram......................................................................................................................................6-7
Functional Description ................................................................................................................................................ 8
Output Power Table................................................................................................................................................ 13
Design, Assembly, and Layout Considerations..................................................................................................... 14
Application Example.................................................................................................................................................. 20
Absolute Maximum Ratings...................................................................................................................................... 23
Parameter Table...................................................................................................................................................... 23
Typical Performance Characteristics..................................................................................................................29-33
Package Details ......................................................................................................................................................... 34
Part Ordering Information......................................................................................................................................... 35
Part Marking Information ......................................................................................................................................... 35
2
Rev. E 04/15
www.power.com


Features Datasheet pdf TFS757-764HG HiperTFS™ Family Combined Two-Switch Forward and Flyback Power S upply Controllers with Integrated High Voltage MOSFETs Key Benefits • Sing le chip solution for two-switch forward main and flyback standby • High int egration allows smaller form factor and higher power density designs • Inco rporates control, gate drivers, and thr ee power MOSFETS • Level shift techn ology eliminates need for pulse transfo rmer • Protection features include: UV, OV, OTP, OCP, and SCP • Transfor mer reset control • Prevents transfo rmer saturation under all conditions Allows >50% duty cycle operation • Reduces primary side RMS currents and conduction losses • Standby supply provides built-in overload power compen sation • Up to 434 W total output po wer in a highly compact package • Up to 550 W peak • High efficiency sol ution easily enables design to meet str ingent efficiency specifications • > 90% efficiency at full load • No-load regulation and low losses at light-load • Simple clip.
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