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MC34023

Features: • 50 ns Propagation Delay to Output• High Current Totem Pole Output• Wide Bandwidth Error Amplifier• FullyLatched Logic with Double Pulse Suppression• Latching PWM for CycleByCycle Current Limiting• SoftStart Control with Latched Overcurrent Reset̶...

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SeekIC No. : 004415863 Detail

MC34023: Features: • 50 ns Propagation Delay to Output• High Current Totem Pole Output• Wide Bandwidth Error Amplifier• FullyLatched Logic with Double Pulse Suppression• Latchin...

MC34023 Data Sheet

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Part Number:
MC34023
Supply Ability:
5000

Price Break

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

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Product Details

Description



Features:

• 50 ns Propagation Delay to Output
• High Current Totem Pole Output
• Wide Bandwidth Error Amplifier
• FullyLatched Logic with Double Pulse Suppression
• Latching PWM for CycleByCycle Current Limiting
• SoftStart Control with Latched Overcurrent Reset
• Input Undervoltage Lockout with Hysteresis
• Low StartUp Current (500 A Typ)
• Internally Trimmed Reference with Undervoltage Lockout
• 90% Maximum Duty Cycle (Externally Adjustable)
• Precision Trimmed Oscillator
• Voltage or Current Mode Operation to 1.0 MHz
• Functionally Similar to the UC3823


Pinout

Connection Diagram


Specifications

Rating
Symbol
Value
Unit
Power Supply Voltage
VCC
30
V
Output Driver Supply Voltage
VC
20
V
Output Current, Source or Sink (Note 1)
DC
Pulsed (0.5 s)
IO
0.5
2.0
A
Current Sense, SoftStart, Ramp, and Error Amp Inputs
Vin
0.3 to +7.0
V
Error Amp Output and SoftStart Sink Current
IO
10
mA
Clock and RT Output Current
ICO
5.0
mA
Power Dissipation and Thermal Characteristics
SO16 Package (Case 751G)
Maximum Power Dissipation @ TA = +25°C
Thermal Resistance, JunctiontoAir DIP Package (Case 648)
Maximum Power Dissipation @ TA = +25°C
Thermal Resistance, JunctiontoAir
PD
RJA

PD
RJA
862
145

1.25
100
mW
/W

W
/W
Operating Junction Temperature
TJ
+150
Operating Ambient Temperature (Note 2)
MC34023
MC33023
TA
0 to +70
40 to +105
Storage Temperature Range
Tstg
55 to +150



Description

The MC34023 series are high speed, fixed frequency, singleended pulse width modulator controllers optimized for high frequency operation. MC34023 series are specifically designed for OffLine and DCtoDC converter applications offering the designer a costeffective solution with minimal external components. MC34023 series feature an oscillator, a temperature compensated reference, a wide bandwidth error amplifier, a high speed current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET.

MC34023 series include protective features consisting of input and reference undervoltage lockouts each with hysteresis, cyclebycycle current limiting, and a latch for single pulse metering.

The flexibility of MC34023 series allows it to be easily configured for either current mode or voltage mode control.




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