Q67006-A9341 데이터 시트보기 (PDF) - Infineon Technologies

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Q67006-A9341

Voltage-Current Regulator

Infineon Technologies 

TLE 4305

SMPS with TLE 4305 Secondary Regulator

The TLE 4305 is located on the secondary side of the regulator and controls the output

voltage as well as it limits the output current. Voltage and current can be chosen

independent from each other by the designer according to the application’s

requirements.

Line

SMPS

Primary

Side

n1

LS

n3

D1

RGL34D

n2

TLE 4305G

VSE

VS

VCO

RV1

CVCO

RV2

10 nF

Cool Set

TDA 1683x

PWM Duty

Cycle

= f(VFB)

FB

CS

100 nF

CL

470 µF

CCO

CCCO

10 nF

CRE

D2

SMS2100

GND

CSE OUT

RSense

VQ

+

CS2

CS1

-

Optocoupler

AES02878

Figure 4 Application Circuit

VQ = 2.5 V × (RV1 + RV2) / RV2

(1)

IQ = 0.2 V / RSense

(2)

Figure 3 shows the TLE 4305 as SMPS secondary regulator as application circuit. The

load capacitor CL is charged by the PWM-signal at the secondary side of the transformer.

The diode D2 defines the current flow in the transformer.

Data Sheet

9

Rev. 2.2, 2008-11-17

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