SMP402SC POWERINT [Power Integrations, Inc.], SMP402SC Datasheet
SMP402SC
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SMP402SC Summary of contents
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... Protection features include undervoltage lockout, thermal shutdown, and input polarity and level sensing. The SMP402 is available in a 16-pin plastic SOIC package VDC - Figure 1. Typical Application. non-isolated ISDN Figure 2. Pin Configuration. SMP402SC SMP402 V IN OUT POLARITY ENABLE ...
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SMP402 ENABLE V BIAS HV REG REF A GND BANDGAP R EXT REF D GND C EXT OSC EA OUT + ERROR AMPLIFIER SENSE ...
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Pin Functional Description Pin the high-voltage input to the IN switching regulator. This is the Source connection of the P-Channel power MOSFET pass transistor. Pin internal supply for the level LS shift circuit ...
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SMP402 Functional Description (cont.) Oscillator The oscillator frequency can be adjusted by changing the external C capacitor. EXT This capacitor is charged and discharged by switched constant current sources. The voltage switch points are determined by hysteresis built into a ...
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Functional Description (cont.) POLARITY current threshold. Regulation of the output voltage is detected by a comparator which looks for error amplifier saturation in the output high (maximum duty cycle) state. Power supply turn on and turn off with a slowly ...
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SMP402 + D1 D2 INPUT 1N4002 100 1 1 3.3 M 3.3 M Figure 6. Schematic Diagram of a Non-isolated ISDN Regulator Circuit Utilizing ...
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General Circuit Operation (cont.) The line and load regulation graphs were measured on the circuit shown in Figure 6. The switching frequency of the power supply was measured at 230 kHz. The maximum output power curve shows Typical Performance Characteristics ...
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SMP402 V Voltage .................................................................. Drain-Source Voltage (V to OUT) ........................... Voltage .............................................................. 5.5 V BIAS SENSE Current .................................................... 200 A OUT Voltage ........................................ V OUT Current .......................................................... 250 mA Logic Input Voltage ........................... ...
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Parameter Symbol CIRCUIT PROTECTION Thermal Shutdown Temperature Thermal Shutdown Hysteresis LOGIC Input Current I High IH Input Current I Low IL Input Voltage V High IH Input Voltage V Low IL Output Voltage V High OH Output Voltage V Low ...
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SMP402 Parameter Symbol OUTPUT (cont.) OFF-State I Current DSS Breakdown BV Voltage DSS SUPPLY HV Regulator V Voltage IN Off-line Supply I Current IN V Supply V BIAS Voltage BIAS V Supply I BIAS BIAS Current NOTES low ...
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BREAKDOWN vs. TEMPERATURE 1.1 1.0 0.9 -50 - 100 125 150 Junction Temperature ( C) C OSS vs. DRAIN VOLTAGE 100 Drain Voltage (V) DRAIN CAPACITANCE ENERGY ...
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SMP402 PACKAGE POWER DERATING Case Temperature ( C) S16A DIM inches mm A .398-.413 10.10-10.50 B .050 BSC 1.27 BSC C .014-.018 0.36-0.46 E .093-.104 2.35-2.65 F .004-.012 0.10-0.30 J .394-.418 ...
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NOTES SMP402 D 13 1/96 ...
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SMP402 14 D 1/96 NOTES ...
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NOTES SMP402 D 15 1/96 ...
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SMP402 Power Integrations reserves the right to make changes to its products at any time to improve reliability or manufacturability. Power Integrations does not assume any liability arising from the use of any device or circuit described herein, nor does ...