KA7500CD View Datasheet(PDF) - Fairchild Semiconductor

Part Name

Description

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KA7500CD

SMPS Controller

Fairchild Semiconductor 

Electrical Characteristics

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

Symbol

Parameter

Conditions

Min.

Reference Section

VREF Reference Output Voltage

RLINE Line Regulation

RLOAD Load Regulation

ISC

Short-Circuit Output Current

Oscillation Frequency

IREF=1mA, TA=25°C(1)

IREF=1mA

VCC=7V to 40V

IREF=1mA to 10mA

VREF=0V

4.95

4.90

10

CT=0.001µF, RT=30KΩ

fOSC Oscillation Frequency

CT=0.01µF, RT=12KΩ,

TA=25°C

9.2

CT=0.01µF, RT=12KΩ,

TA=TLOW to THIGH

9.0

Δf/Δt Frequency Change with Temperature CT=0.01µF, RT=12KΩ

Dead-Time Control Section

IBIAS

D(MAX)

Input Bias Current

Maximum Duty Cycle

VITH Input Threshold Voltage

VCC=15V, 0V≤ V4≤ 5.25V

VCC=15V, V4=0V, OC

Pin=VREF

45

Zero Duty Cycle

Maximum Duty Cycle

0

Error Amplifier Section

VIO

Input Offset Voltage

V3=2.5V

IIO

Input Offset Current

V3=2.5V

IBIAS Input Bias Current

V3=2.5V

VCIM Common Mode Input Voltage

7V≤ VCC ≤ 40V

-0.3

GVO Open-Loop Voltage Gain

0.5V≤ V3 ≤ 3.5V

70

BW

Unit-Gain Bandwidth

PWM Comparator Section

VITH Input Threshold Voltage

ISINK Input Sink Current

Output Section

Zero Duty Cycle

V3=0.7V

-0.3

VCE(SAT)

Output Saturation Voltage Common

Emitter

VE=0V, IC=200mA

VCC(SAT) Emitter-Follower

IC(OFF) Collector Off-State Current

IE(OFF) Emitter Off-State Current

Total Device

VC=15V, IE=-200mA

VCC=40V, VCE=40V

VCC=VC=40V, VE=40V

ICC

Supply Current

Output Switching Characteristics

Pin6=VREF, VCC=15V

tR

Rise Time, Common Emitter,

Common Collector

tF

Fall Time, Common Emitter,

Common Collector

Note:

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

Typ.

5.00

5.00

2

1

35

40.0

10.0

-2

3.0

2

25

0.2

95

650

4.0

-0.7

1.0

1.5

2

6

100

25

Max. Units

5.05

V

5.10

25

mV

15

mV

50

mA

10.8 kHz

12.0

2

%

-10

µA

%

3.3

V

10

mV

250 mA

1.0

µA

VCC

V

dB

kHz

4.5

V

mA

1.3

V

2.5

100

µA

-100

10

mA

200

ns

100

© 2003 Fairchild Semiconductor Corporation

KA7500C • Rev. 1.0.2

5

www.fairchildsemi.com

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