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KA7500B Datasheet(PDF) 3 Page - Fairchild Semiconductor

Part No. KA7500B
Description  SMPS Controller
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Manufacturer  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

KA7500B Datasheet(HTML) 3 Page - Fairchild Semiconductor

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KA7500B
3
Electrical Characteristics
(VCC = 20V, f = 10kHz, TA = 0
°C to +70°C, unless otherwise specified)
Note:
1. This parameter, although guaranteed, is not 100% tested in production.
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
REFERENCE SECTION
Reference Output Voltage
VREF
IREF = 1mA
4.75
5.0
5.25
V
Line Regulation
∆VREF
VCC = 7V to 40V
-
2.0
25
mV
Temperature Coefficient of VREF
∆VREF/∆TTA = 0°C to 70°C
-
0.01
0.03
%/
°C
Load Regulation
∆VREF
IREF = 1mA to 10mA
-
1.0
15
mV
Short-Circuit Output Current
ISC
VREF = 0V
10
35
50
mA
OSCILLATOR SECTION
Oscillation Frequency
f
CT = 0.01
µF, RT = 12kΩ
-10-
kHz
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 (Note1)
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
-
mV
OUTPUT SECTION
Output Saturation Voltage
Common Emitter
VCE(SAT)
VE = 0, IC = 200mA
-
1.1
1.3
V
Common Collector
VCC(SAT)
VC = 15V, IE = -200mA
-
1.5
2.5
Collector Off-State Current
IC(OFF)
VCC = 40V, VCE = 40V
-
2
100
µA
Emitter Off-State Current
IE(OFF)
VCC = VC = 40V, VE = 0
-
-
-100
TOTAL DEVICE
Supply Current
ICC
Pin 6 = VREF, VCC = 15V
-
6
10
mA
OUTPUT SWITCHING CHARACTERISTICS
Rise Time
tR
-
----
Common Emitter
-
-
-100
200
ns
Common Collector
-
-
-100
200
Fall Time
tF
-
----
Common Emitter
-
-
-25
100
ns
Common Collector
-
-
-40
100


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