KA7500CD datasheet(3/8 Pages) FAIRCHILD

部件名	KA7500CD

功能描述	SMPS Controller

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制造商	FAIRCHILD [Fairchild Semiconductor]

网页	http://www.fairchildsemi.com

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3 / 8 page

KA7500C

3

Electrical Characteristics

(VCC = 20V, f = 10kHz, TA = -25

°C to +85°C, unless otherwise specified)

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Unit

REFERENCE SECTION

Reference Output Voltage

VREF

IREF = 1mA, TA=25

°C(Note1)

4.95

5.0

5.05

V

IREF = 1mA

4.9

5.0

5.1

Line Regulation

RLine

VCC = 7V to 40V

-

2.0

25

mV

Load Regulation

RLOAD

IREF = 1mA to 10mA

-

1.0

15

mV

Short Circuit Output Current

ISC

VREF = 0V

10

35

50

mA

OSCILLATOR SECTION

Oscillation Frequency

fosc

CT = 0.001

µF, RT = 30KΩ

-40

-

kHz

CT = 0.001

µF, RT = 12KΩ,TA=25°C

9.2

10

10.8

CT = 0.001

µF, RT = 30KΩ,

TA=Tlow to Thigh

9.0

-

12

Frequency Change with

Temperature

∆f/∆TCT = 0.01µF, RT = 12KΩ

--

2

%

DEAD TIME CONTROL SECTION

Input Bias Current

IBIAS

VCC = 15V, 0V

≤ V4 ≤ 5.25V

-

-2.0

-10

µA

Maximum Duty Cycle

D(MAX)

VCC = 15V, V4 = 0V

O.C Pin = VREF

45

-

%

Input Threshold Voltage

VITH

Zero Duty Cycle

-

3.0

3.3

V

Max. Duty Cycle

0

-

ERROR AMP SECTION

Input Offset Voltage

VIO

V3 = 2.5V

-

2.0

10

mV

Input Offset Current

IIO

V3 = 2.5V

-

25

250

mA

Input Bias Current

IBIAS

V3 = 2.5V

-

0.2

1.0

µA

Common Mode Input Voltage

VCM

7V

≤ VCC ≤ 40V

-0.3

-

VCC

V

Open-Loop Voltage Gain

GVO

0.5V

≤ V3 ≤ 3 .5V

70

95

-

dB

Unit-Gain Bandwidth

BW

-

650

-

kHz

PWM COMPARATOR SECTION

Input Threshold Voltage

VITH

Zero Duty Cycle

-

4

4.5

V

Input Sink Current

ISINK

V3 = 0.7V

-0.3

-0.7

-

mA

OUTPUT SECTION

Output Saturation Voltage

Common Emitter

VCE(SAT)

VE = 0V, IC = 200mA

-

1.1

1.3

V

类似零件编号 - KA7500CD

制造商	部件名	数据表	功能描述
Fairchild Semiconductor	KA7500CD	358Kb / 8P	SMPS Controller
ON Semiconductor	KA7500CD	436Kb / 9P	SMPS Controller April 2009 Rev. 1.0.2
Fairchild Semiconductor	KA7500CDTF	358Kb / 8P	SMPS Controller
ON Semiconductor	KA7500CDTF	436Kb / 9P	SMPS Controller April 2009 Rev. 1.0.2

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