KA7500CD datasheet(5/8 Pages) FAIRCHILD

Teilenummer	KA7500CD

Bauteilbeschribung	SMPS Controller

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Hersteller	FAIRCHILD [Fairchild Semiconductor]

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KA7500C • Rev. 1.0.2

5

Electrical Characteristics

VCC = 20V, f = 10kHz, TA = -25°C to +85°C, unless otherwise specified.

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Units

Reference Section

IREF=1mA, TA=25°C

(1)

4.95

5.00

5.05

VREF

Reference Output Voltage

IREF=1mA

4.90

5.00

5.10

V

RLINE

Line Regulation

VCC=7V to 40V

2

25

mV

RLOAD

Load Regulation

IREF=1mA to 10mA

1

15

mV

ISC

Short-Circuit Output Current

VREF=0V

10

35

50

mA

Oscillation Frequency

CT=0.001µF, RT=30KΩ

40.0

CT=0.01µF, RT=12KΩ,

TA=25°C

9.2

10.0

10.8

fOSC

Oscillation Frequency

CT=0.01µF, RT=12KΩ,

TA=TLOW to THIGH

9.0

12.0

kHz

Δf/Δt

Frequency Change with Temperature

CT=0.01µF, RT=12KΩ

2

%

Dead-Time Control Section

IBIAS

Input Bias Current

VCC=15V, 0V≤ V4≤ 5.25V

-2

-10

µA

D(MAX)

Maximum Duty Cycle

VCC=15V, V4=0V, OC

Pin=VREF

45

%

Zero Duty Cycle

3.0

3.3

VITH

Input Threshold Voltage

Maximum Duty Cycle

0

V

Error Amplifier Section

VIO

Input Offset Voltage

V3=2.5V

2

10

mV

IIO

Input Offset Current

V3=2.5V

25

250

mA

IBIAS

Input Bias Current

V3=2.5V

0.2

1.0

µA

VCIM

Common Mode Input Voltage

7V

≤ VCC ≤ 40V

-0.3

VCC

V

GVO

Open-Loop Voltage Gain

0.5V

≤ V3 ≤ 3.5V

70

95

dB

BW

Unit-Gain Bandwidth

650

kHz

PWM Comparator Section

VITH

Input Threshold Voltage

Zero Duty Cycle

4.0

4.5

V

ISINK

Input Sink Current

V3=0.7V

-0.3

-0.7

mA

Output Section

VCE(SAT)

Output Saturation Voltage Common

Emitter

VE=0V, IC=200mA

1.0

1.3

VCC(SAT)

Emitter-Follower

VC=15V, IE=-200mA

1.5

2.5

V

IC(OFF)

Collector Off-State Current

VCC=40V, VCE=40V

2

100

IE(OFF)

Emitter Off-State Current

VCC=VC=40V, VE=40V

-100

µA

Total Device

ICC

Supply Current

Pin6=VREF, VCC=15V

6

10

mA

Output Switching Characteristics

tR

Rise Time, Common Emitter,

Common Collector

100

200

tF

Fall Time, Common Emitter,

Common Collector

25

100

ns

Note:

1.

This is guaranteed where the marking code of the package surface is over 027.

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