L6591 datasheet(1/32 Pages) STMICROELECTRONICS

部件名	L6591

功能描述	PWM controller for ZVS half-bridge

PDF	32 Pages

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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1 / 32 page

June 2008

Rev 1

1/32

32

L6591

PWM controller for ZVS half-bridge

Features

■ Complementary PWM control for soft-switched

half-bridge with programmable dead-time

■ Up to 500 kHz operating frequency

■ On-board high-voltage start-up

■ Advanced light load management

■ Adaptive UVLO

■ Pulse-by-pulse OCP

■ OLP (latched or autorestart)

■ Transformer saturation detection

■ Interface with PFC controller

■ Latched disable input

■ Input for power-on sequencing or brownout

protection

■ Programmable soft-start

■ 4 % precision external reference

■ 600 V-rail compatible high-side gate driver with

integrated bootstrap diode and high dV/dt

immunity

■ SO16N package

Applications

■ High power AC-DC adapter/charger

■ Desktop PC, entry-level server

■ Telecom SMPS

SO-16

SO16 narrow

Figure 1.

Typical application circuit

5

Vre f

+

-

1.5V

3

BLANKI NG

R

S

Q

25 V

Vc c_O K

DIS

R

3R

DIS

7

4

11

6

9

CLK

COMP

SS

ISEN

OSC

VCC

VREF

GND

HICCUP

VREG

0.3 2mA

TIMING

PWM

+

-

16

HV

LV G

HV ge nerator ON/O

FFa nd

a daptive UV LOmanagement

Vcc_OK

8

PFC_STOP

2.0 V

-

+

OCP2

DI S

OCP2

+

-

SOFT-START

BURST- M ODE CTRL

S

Q

R

S

Q

R

VCC

14

HVG

10

1 3

FGND

LEVEL

SHIFTER

15

BOOT

Sync hronous

bootstra p diode

1.7 5V

-

+

2

DIS

4.5V

OCP

-

+

-

+

1

LINE

1.5V

15µA

LINE_ OK

LINE_OK

S HUT DO WN

PWM _CT L

Ilimre f

0.8 V max.

Low

UVLO

Low

UV LO

www.st.com

类似零件编号 - L6591

制造商	部件名	数据表	功能描述
STMicroelectronics	L6590	360Kb / 23P	FULLY INTEGRATED POWER SUPPLY FIPS 2000-Oct
	L6590A	238Kb / 19P	FULLY INTEGRATED POWER SUPPLY Oct-2000
	L6590D	360Kb / 23P	FULLY INTEGRATED POWER SUPPLY FIPS 2000-Oct
	L6590N	360Kb / 23P	FULLY INTEGRATED POWER SUPPLY FIPS 2000-Oct
	L6598	114Kb / 16P	HIGH VOLTAGE RESONANT CONTROLLER Feb-2000

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类似说明 - L6591

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	ISL6753	399Kb / 15P	ZVS Full-Bridge PWM Controller April 4, 2006
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Renesas Technology Corp	ISL6753	686Kb / 15P	ZVS Full-Bridge PWM Controller
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