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KA7577

Linear Regulators - Standard SMPS Controller

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SeekIC No. : 00505953 Detail

KA7577: Linear Regulators - Standard SMPS Controller

KA7577 Data Sheet

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Part Number:
KA7577
Mfg:
Fairchild Semiconductor
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/5/15

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Product Details

Quick Details

Input Voltage MAX : 31 V Mounting Style : Through Hole
Package / Case : DIP-16    

Description

Output Type :
Polarity :
Output Voltage :
Output Current :
Load Regulation :
Line Regulation :
Maximum Operating Temperature :
Mounting Style : Through Hole
Input Voltage MAX : 31 V
Package / Case : DIP-16


Features:

• Low Stand-By Current
• Pulse by Pulse Current Limiting
• Over Voltage Protection
• Over Current Protection
• Integrated Thermal Shutdown Circuit
• Output Driver Current of ± 2A
• Totem pole Output


Specifications

Parameter
Symbol
Value
Unit
Supply Voltage
VCC
31
V
Supply Voltage
VC
31
V
Output DC Current
IO(DC)
± 0.5
A
Output Peak Voltage
IOPK
± 2
A
VF Terminal Voltage
V(VF)
31
V
VON/OFF Terminal Voltage
V(ON/OFF)
31
V
Current Limiting (-) Terminal Voltage
V(CLM - )
- 4 ~+4
V
Current Limiting (+) Terminal Voltage
V(CLM -+)
- 0.3 ~+4
V
Over Voltage Protection Terminal Voltage
V(OVP)
31
V
Detection Terminal Voltage (Note 1)
V(DET)

6
V
Detection Terminal Sink Current (Note 1)
ISINK(DET)
5
mA
Feedback Terminal Voltage
V(FB)
0 - 10
V
Timer ON Terminal Source Current
ISOURCE(T-ON)
-1
mA
Timer OFF Terminal Source Current
ISOURCE(T-OFF)
-1
mA
Power Dissipation
PD
1.5
W
hermal Derating Factor
KTD
12
mW/°C
Operating Temperature Range
TOPR
- 25 ~ +85
°C
Storage Temperature Range
TSTG
- 40 ~ +125
°C
Junction Temperature
TJ
150
°C


Note:
1. This terminal has the constant voltage characteristics of 6-8V, when current is supplied from out side.
The maximum allowable voltage is 6V when the constant voltage is applied to this terminal.
And maximum allowable current is 5mA, it is recommended to use current limiting resistor.




Description

KA7577 is fixed frequency PWM controller and specially designed for SMPS to get regulated DC voltage from AC power supply. This integrated circuit has so fast rise and fall output pulse that it can directly drive power transistor as well as power MOSFET. This device features high speed and high sensitive current limiting. Protection circuitry include current limiting function against short and over current at secondary side, owing to the integrated timertype-protection circuit.




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