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M51996AP

Features: •500kHz operation to MOS FET•Output current...............................................................±1A•Output rise time 60ns,fall time 40ns•Modified totempole output method with small through current•Compact and light-weight power supply•Small s...

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SeekIC No. : 004405503 Detail

M51996AP: Features: •500kHz operation to MOS FET•Output current...............................................................±1A•Output rise time 60ns,fall time 40ns•Modified totempol...

M51996AP Data Sheet

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Part Number:
M51996AP
Supply Ability:
5000

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

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Upload time: 2024/11/27

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Product Details

Description



Features:

•500kHz operation to MOS FET
•Output current...............................................................±1A
•Output rise time 60ns,fall time 40ns
•Modified totempole output method with small through current
•Compact and light-weight power supply
•Small start-up current............................................100A typ.
•Big difference between "start-up voltage" and "stop voltage" makes the smoothing capacitor of the power input section small.
  Start-up threshold 16V,stop voltage 10V
•Packages with high power dissipation are used to with-stand the heat generated by the gate-drive current of MOS FET.
  14-pin DIP,16-pin SOP 1.5W(at 25°C)
•Simplified peripheral circuit with protection circuit and built-in large-capacity totempole output
•High-speed current limiting circuit using pulse-by-pulse method(CLM+pin)
•Over-voltage protection circuit with an externally re-settable latch(OVP)
•Protection circuit for output miss action at low supply voltage(UVLO)
•High-performance and highly functional power supply
•Triangular wave oscillator for easy dead time setting
•SOFT start function by expanding period 


Pinout

Connection Diagram 


Specifications

Symbol Parameter Conditions
Ratings
Unit
VCC Supply Voltage  
31
V
VC Collector voltage  
31
V
IO Output current Peak
±1
A
Continuous
±0.15
IVREG VF terminal voltage  
-6
mA
VSOFT ON/OFF terminal voltage   VREG +0.2
V
VCLM+ CLM+terminal voltage  
-0.3 to +3
V
VDET DET terminal voltage   6
V
IOVP DET terminal input current  
8
mA
IFB F/B terminal voltage  
-10
mA
ITON T-ON terminal input current  
-1
mA
ITOFF T-OFF terminal input current  
-2
mA
Pd Power dissipation  
1.5
W
K Thermal derating factor Ta= 25
12
mW/
Topr Operating temperature Ta> 25
-30 to +85
Tstg Storage temperature  
40 to +125

Note 1."+" sign shows the direction of current flowing into the IC and "-" sign shows the current flowing out from the IC.
2.The low impedance voltage supply should not be applied to the OVP terminal.

 






Description

M51996A is the primary switching regulator controller which is especially designed to get the regulated DC voltage from AC power supply.

This IC can directly drive the MOS-FET with fast rise and fast fall output pulse and with a large-drive totempole output.

Type M51996A has the functions of not only high frequency OSC and fast output drive but also current limit with fast response and high sensibility so the true "fast switching regulator" can be realized.

The M51996A is equivalent to the M51978 with externally resettable OVP(over voltage protection)circuit.




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