NCP1294 ON Semiconductor, NCP1294 Datasheet
NCP1294
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NCP1294 Summary of contents
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... In addition, this device includes such features as: Soft−Start, accurate duty cycle limit control, less than 50mA startup current, over and undervoltage protection, and bidirectional synchronization. The NCP1294 is available lead SOIC narrow surface mount package. Features • ...
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... Figure 1. Application Diagram, 36 V− 5.0 V/5.0 A Converter NCP1294 http://onsemi.com 2 ...
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MAXIMUM RATINGS Operating Junction Temperature, T Lead Temperature Soldering: Storage Temperature Range, T www.datasheet4u.com ESD (Human Body Model) Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is ...
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ELECTRICAL CHARACTERISTICS 390 pF; unless otherwise specified Characteristic Reference Voltage Total Accuracy Line Regulation www.datasheet4u.com Load Regulation Noise Voltage Op Life Shift Fault Voltage V Voltage REF(OK) V Hysteresis REF(OK) Current Limit ...
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ELECTRICAL CHARACTERISTICS 390 pF; unless otherwise specified Characteristic Gate Driver High Saturation Voltage Low Saturation Voltage www.datasheet4u.com High Voltage Clamp Output Current Output UVL Leakage Rise Time Fall Time Max Gate Voltage ...
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PACKAGE PIN DESCRIPTION Package Pin Pin # Symbol 1 GATE External power switch driver with 1.0 A peak capability. Rail to rail output occurs when the capacitive load is between 470 pF and 10 nF Current sense comparator ...
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UVL − + − UV Lockout Start/Stop www.datasheet4u.com SYNC 2 1.0 V Trip Points V 3 (1.263 V) + EAMP − COMP FF I SET DISABLE 150 ...
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... CC + comparator allows the controller to operate until the V − stop threshold is reached. The NCP1294 requires only 50 mA during startup. The output stage is held at a low impedance state in lock out mode. During power up and fault conditions, the Soft−Start clamps the Comp pin voltage and limits the duty cycle. The ...
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... However, the low pass filter will inevitably change the shape of the current pulse and also add cost. The NCP1294 uses leading edge blanking circuitry that blocks out the first 150 ns (typ) of each current pulse. This removes the leading edge spikes without altering the current waveform. The blanking is disabled during Soft− ...
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Figure 8. The SYNC Pin Generates a Sync Pulse at the Beginning of Each Switching Cycle. CH2: GATE Pin, CH3: R Figure 9. Operation with External Sync. CH2: SYNC Pin, CH3: GATE Pin, CH4 external pulse signal ...
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500 400 www.datasheet4u.com 300 200 100 0.0001 Figure 10. Typical Performance Characteristics, Oscillator Frequency vs. C that during steady state, V ...
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G −T− SEATING PLANE 0.25 (0.010) PACKAGE THERMAL DATA R qJC R qJA PACKAGE DIMENSIONS SOIC−16 D SUFFIX CASE 751B−05 ISSUE K 9 −B− 0.25 (0.010 ...
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... For additional information, please contact your local Sales Representative INCHES MIN MAX 0.193 0.200 0.169 0.177 −−− 0.047 0.002 0.006 0.020 0.030 0.026 BSC 0.007 0.011 0.004 0.008 0.004 0.006 0.007 0.012 0.007 0.010 0.252 BSC NCP1294D ...