TDA4700 View Datasheet(PDF) - Infineon Technologies

Part Name

Description

Manufacturer

TDA4700

Control IC for single-ended and push-pull switching-mode power supplies

Infineon Technologies 

TDA 4700

TDA 4718

Characteristics (cont’d)

VS = 11 to 30 V; TA = – 25 to 85 °C

Parameter

Symbol

Limit Values

min.

typ. max.

Comparator K2

Input current

Turn-OFF delay1)

Input voltage

– II K2

tD OFF

VI K2

Common-mode input

voltage range

VI C

0

Soft Start K3, K4

2

500

1.8

5

5.5

Charge current for

Csoft start

Ich

6

Discharge current for

Csoft start

Idch

2

Upper limiting voltage Vlim

5

Switching voltage K4 VK4

1.5

Operational Amplifier K1 (TDA 4700; TDA 4700 A)

Open-loop voltage

gain

Input offset voltage

Temperature

coefficient of VIO

Input current

Common-mode input

voltage range

Output current

Rise time of output

voltage

Transition frequency

Phase at fT

Output voltage

GV0

VIO

TC

– II

VIC

IQ

∆V/∆t

fT

ϕT

VQ H/L

60

– 10

– 30

0

–3

1.5

1) At the input: step function ∆V = – 100 mV

80

10

30

2

5

1.5

1

3

120

5.5

∆V = + 100 mV

Unit Test

Condition

µA

ns

for duty cycle

V

D=0

V

D = max.

V

µA

µA

V

V

dB

mV

µV/K

µA

V

mA

V/µs

MHz

deg.

V

– 3 mA < I < 1.5 mA

Semiconductor Group

14

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