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Fairchild Semiconductor Electronic Components Datasheet

KA7500B Datasheet

SMPS Controller

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KA7500B
SMPS Controller
www.fairchildsemi.com
Features
• Internal Regulator Provides a Stable 5V Reference Supply
Trimmed to 5%
• Uncommitted Output TR for 200mA Sink or Source
Current
• Output Control For Push-Pull or Single Ended Operation
• Variable Duty Cycle By Dead Time Control (Pin 4)
Complete PWM Control Circuit
• On-Chip Oscillator With Master or Slave Operation
• Internal Circuit Prohibits Double Pulse at Either Output
Description
The KA7500B is used for the control circuit of the PWM
switching regulator. The KA7500B consists of 5V reference
voltage circuit, two error amplifiers, a flip flop, an output
control circuit, a PWM comparator, a dead time comparator
and an oscillator. This device can be operated in the
switching frequency of 1kHz to 300kHz.
16-DIP
1
16-SOP
1
Internal Block Diagram
©2002 Fairchild Semiconductor Corporation
Rev. 1.0.0


Fairchild Semiconductor Electronic Components Datasheet

KA7500B Datasheet

SMPS Controller

No Preview Available !

KA7500B
Absolute Maximum Ratings
Parameter
Supply Voltage
Collector Supply Voltage
Output Current
Amplifier Input Voltage
Power Dissipation (TA = 25°C)
Operating Temperature Range
Storage Temperature Range
Symbol
VCC
VC
IO
VIN
PD
TOPR
TSTG
Value
42
42
250
VCC +0.3
1 (KA7500B)
0.9 (KA7500BD)
0 ~ +70
-65 ~ +150
Unit
V
V
mA
V
W
°C
°C
2


Part Number KA7500B
Description SMPS Controller
Maker Fairchild
Total Page 8 Pages
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