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GP3843

Features: ·Trimmed Oscillator for Precise Frequency Control·Oscillator Frequency Guaranteed at 250kHz·Current Mode Operation to 500kHz·Automatic Feed Forward Compensation·latching PWM for Cycle-By-Cycle Current Limiting·Internally Trimmed Reference with Undervoltage Lockout·High Current Totem Pole...

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SeekIC No. : 004355007 Detail

GP3843: Features: ·Trimmed Oscillator for Precise Frequency Control·Oscillator Frequency Guaranteed at 250kHz·Current Mode Operation to 500kHz·Automatic Feed Forward Compensation·latching PWM for Cycle-By-C...

GP3843 Data Sheet

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Part Number:
GP3843
Supply Ability:
5000

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

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Upload time: 2024/4/26

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Product Details

Description



Features:

·Trimmed Oscillator for Precise Frequency Control
·Oscillator Frequency Guaranteed at 250kHz
·Current Mode Operation to 500kHz
·Automatic Feed Forward Compensation
·latching PWM for Cycle-By-Cycle Current Limiting
·Internally Trimmed Reference with Undervoltage Lockout
·High Current Totem Pole Output
·Undervoltage Lockout with Hysteresis
·Low Startup and Operating Current


Pinout

Connection Diagram


Specifications

Parameter Symbol VALUE Unit
Total power Supply and Zener current (ICC+Iz) 30 mA
Output current, source or sink(note1) Io 1.0 A
Output energy(capacitive load per cycle) W 5.0 J
Current sense and voltage feedback inputs Vin -0.3 to 5.5 V
Error Amplifier Output Sink Current Io 10 mA
Power Dissipation at Thermal
Characteristics		 PD
PJA		 1250
100		 mW
/W
Storage Temperature Range Tstg -65 to 150
Operating Junction Temperature TJ +150
Operating ambient Temperature TA 0~+70



Description

The GP3843 is specifically designed for Off-Line and dc-to-dc converter applications offering the designer a cost-effective solution with minimal external components.

The GP3843 has UVLO thresholds 8.5V(on) and 7.6V(off),ideally suited for off-line converters.




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