TDA4605 datasheet(10/21 Pages) SIEMENS

Part #	TDA4605

Description	Control IC for Switched-Mode Power Supplies using MOS-Transistors

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Manufacturer	SIEMENS [Siemens Semiconductor Group]

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Semiconductor Group

42

TDA 4605

Characteristics

TA = 25 ˚C

Parameter

Symbol

Limit Values

Unit

Test Condition

Test

Circuit

min.

typ.

max.

Start-Up Hysteresis

Start-up current

I 6E0

0.5

1.1

1.6

mA

V6 = V6E

1

Switch-on voltage

V6E

11

12

13

V

1

Switch-off voltage

V6A

6.4

6.9

7.4

V

1

Switch-on current

I 6E1

7912

mA

V6 = V6E

1

Switch-off current

I 6A1

6.5

8

10

mA

V6 = V6A

1

Voltage Clamp (

V6 = 10 V, IC switched off)

At pin 2 (

V6 ≤ V6E)

At pin 3 (

V6 ≤ V6E)

V2 max

V3 max

5.6

6.6

7.6

V

I 2 = 1 mA

I 3 = 1 mA

1

Regulation Range

Regulation input

voltage

V1R

370

400

430

mV

2

Voltage gain

regulation range

–

VR

47

50

53

dB

VR = d

(

V2S – V2B)/– dV1

2

Regulation

transmittance

R R

20

k

Ω

RR = d

(

V2S – V2B)/– dI1

2

Primary Current Reproducer

Basic value

V2B

0.90

1.00

1.15

V

2

Input resistance

R2B = ∆V2B/∆I2B

R 2B

25

40

Ω

V3 = 1.5 V;

1.2 V <

V2 < 3 V

0.1 mA <

I 2B < 3 mA

2

Slew rate

falling edge

d

V2/dt

– 1

V

2

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TDA4605 Datasheet(PDF) 10 Page - Siemens Semiconductor Group

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