Datasheet > IR2157_07

IR2157_07

更新时间： 2024-09-17 04:23:11

品牌	Logo	应用领域
英飞凌 - INFINEON		/
页数	文件大小	规格书
20页	309K
描述
FULLY INTEGRATED BALLAST CONTROL IC

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数据手册

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IR2157_07 数据手册

ADVANCED INFORMATION

Data Sheet No. PD60108B

IR2157

FULLY INTEGRATED BALLAST CONTROL IC

Features

Thermal overload protection

Programmable deadtime

•

Programmable preheat time & frequency

•

Programmable ignition ramp

Protection from failure-to-strike

Lamp filament sensing & protection

Protection from operation below resonance

Protection from low-line condition & automatic

restart (mimics a magnetic ballast)

Integrated 600V level-shifting gate driver

Internal 15.6V zener clamp diode on VCC

True micropower startup (150uA)

Latch immunity protection on all leads

ESD protection on all leads

Packages

Description

The IR2157 is a fully integrated, fully protected 600V ballast control IC designed to

drive virtually all types of rapid start fluorescent lamp ballasts. Externally program-

mable features such as preheat time & frequency, ignition ramp characteristics, and

running mode operating frequency provide a high degree of flexibility for the ballast

design engineer. Comprehensive protection features such as protection from failure

of a lamp to strike, filament failures, low dc bus conditions, thermal overload, or lamp

failure during normal operation, as well as an automatic restart function, have been

included in the design. The heart of this control IC is a variable frequency oscillator

with externally programmmable deadtime. Precise control of a 50% duty cycle is

accomplished using a T-flip-flop. The IR2157 is available in both 16 pin DIP and 16

pin narrow body SOIC packages.

16 Lead SOIC

(narrow body)

16 Lead PDIP

Typical Connection

+ Rectified AC Line

+ V_BUS

R_Supply

VDC

CPH

RPH

R_GHS

C_BLOCK

L_RES

C_PH

C_BS

C_SNUBBER

C_IGN

R_PH

N/C

VCC

COM

D_BOOT

R_SNUBBER

R_T

R_RUN

RUN

C_STARTR_START

C_RES

C_VCC

C_T

R_DT

R_GLS

R _CS

V_BUSreturn

12 3 4 5 6 7...20

中文翻译

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