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...
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...
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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 |
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.