Datasheet > IRS2548

IRS2548

更新时间： 2024-12-01 07:07:55

品牌	Logo	应用领域
其他 - ETC		驱动器开关功率因数校正
页数	文件大小	规格书
22页	320K
描述
SMPS/LED DRIVER PFC + HALF-BRIDGE CONTROL IC

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IRS2548 数据手册

September 29, 2011

IRS2548D

SMPS/LED DRIVER PFC + HALF-BRIDGE CONTROL IC

Product Summary

Features

Topology

V_OFFSET

V_OUT

Half Bridge

600V

• PFC, system control and half-bridge driver in

one IC

• Critical-conduction mode boost-type PFC

• Programmable PFC over-current protection

• Half Bridge Driver

• Half Bridge Over Current Protection

• Variable Frequency Oscillator

• Fixed internal 1.6us HO and LO deadtime

• Internal bootstrap MOSFET

VCC

I_o+& I _o-(typical)

500mA/500mA

120nS/50nS

1.6uS

t_ON& t_OFF(typical)

Deadtime (typical)

• Internal 15.6V zener clamp diode on Vcc

• Micropower startup (250µA)

• Latch immunity and ESD protection

Package

Typical Applications

• Isolated LED Drivers

• Power Supplies

14-Lead SOIC

Typical Connection Diagram

DPFC

LPFC

RVBUS1

RVCC

RVBUS2

CVBUS

RV1

RHO

VBUS

MHS

CVBUS1

RPU

RVBUS

RFMIN

BR1

FMIN

COMP

LED+

CBS

DOUT1

GND

CVS

+5V

Reg

CCOMP

RZX

RLM2

RLM1

VCC

COM

RV1

DCP2

CVS

PFC

CVCC2

CVCC1

RLO

MPFC

RPFC

ROC

RD1

MLS

DOUT2

U2A

DCP1

COUT

CF1

RF1

ENN

RMAX

CVBUS2

CRES

RD2

CF2

LED-

RV2

RFMAX

R_CS

RF2

CMAX

RO C

COC

U2B

CCS

R_CL

RD3

DO1

DO2

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