NCP1031 ON, NCP1031 Datasheet
NCP1031
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NCP1031 Summary of contents
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... V input applications. The NCP103x can be configured in any single−ended topology such as forward or flyback. The NCP1030 is targeted for applications requiring and the NCP1031 is targeted for applications requiring The internal error amplifier allows the NCP103x family to be easily configured for secondary or primary side regulation operation in isolated and non− ...
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... Feedback Input FB 4 COMP Error Amplifier Compensation 5 OV Line Overvoltage Shutdown 6 UV Line Undervoltage Shutdown 7 V Supply Voltage Power Switch and DRAIN Startup Circuits NCP1030, NCP1031 R SENSE Current Limit LEB Comparator − − Reset Dominant Latch R PWM Latch 4.5 V Figure 1 ...
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... 2 DRAIN 0 V Power−up & standby Operation Figure 3. Auxiliary Winding Operation with Output Overload Timing Diagram NCP1030, NCP1031 Normal Operation Output Overload http://onsemi.com 3 COMP Voltage Current Limit Propagation Delay Current Limit Threshold Output Overload ...
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... Machine Model Method 200 V. Pin 8 is connected to the High Voltage Startup and Power Switch Circuits and rated only to the maximum voltage rating of the part, or 200 V. B. This device contains Latchup protection and exceeds $100 mA per JEDEC Standard JESD78. NCP1030, NCP1031 Rating http://onsemi.com ...
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... Overvoltage Lockout ( COMP Voltage Threshold (V Increasing) in Voltage Hysteresis Input Bias Current 1. Production testing for NCP1030DMR2 is performed only; limits at −40 C and 125 C are guaranteed by design. NCP1030, NCP1031 ( 560 pF, V DRAIN unless otherwise noted.) (Note 1) J Symbol ...
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... L Rise Time Fall Time CURRENT LIMIT AND OVER TEMPERATURE PROTECTION Current Limit Threshold ( NCP1030 (di/dt = 0.5 A/ms) NCP1031 (di/dt = 1.0 A/ms) Propagation Delay, Current Limit Threshold to Power Switch Circuit Output (Leading Edge Blanking plus Current Limit Delay) Thermal Protection (Note 4) Shutdown Threshold (T Increasing) J Hysteresis TOTAL DEVICE Supply Current After UV Turn− ...
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... Voltage NCP1030, NCP1031 TYPICAL CHARACTERISTICS 20 NCP1030 DRAIN Figure 5. NCP1031 Startup Current vs. Supply 20 NCP1030 DRAIN 100 125 150 −50 −25 Figure 7. NCP1031 Startup Current vs. ...
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... Figure 12. Minimum Startup Voltage vs. Junction Temperature 145 140 135 130 125 120 115 110 105 100 95 −50 − JUNCTION TEMPERATURE ( C) J Figure 14. COMP Source Current vs. Junction Temperature NCP1030, NCP1031 TYPICAL CHARACTERISTICS 6.80 6.75 6.70 6.65 6.60 6.55 6.50 6.45 6.40 6.35 6.30 100 125 150 −50 −25 T Figure 11. Undervoltage Lockout Threshold 2. − 0.2 V CC(on) 2 ...
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... OSC 74.0 73.5 73.0 72.5 72.0 −50 − JUNCTION TEMPERATURE ( C) J Figure 20. Maximum Duty Cycle vs. Junction Temperature NCP1030, NCP1031 TYPICAL CHARACTERISTICS 220 210 200 190 180 170 160 150 140 130 120 100 125 150 −50 − JUNCTION TEMPERATURE ( C) J Figure 17. Line Under/Overvoltage Hysteresis ...
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... NCP1030 1150 1100 1050 1000 950 900 850 800 750 700 475 500 750 800 CURRENT SLEW RATE (mA/mS) Figure 27. NCP1031 Current Limit Threshold http://onsemi.com − 125 C J 100 150 200 250 V , DRAIN VOLTAGE (V) DRAIN ...
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... V , SUPPLY VOLTAGE (V) CC Figure 28. Operating Supply Current vs. Supply Voltage 200 Figure 30. Operating Supply Current vs. NCP1030, NCP1031 TYPICAL CHARACTERISTICS 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0 −50 −25 Figure 29. Supply Current vs. Junction T NCP1031 NCP1030 300 400 500 600 700 800 f , OSCILLATOR FREQUENCY (kHz) ...
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... GND V DRAIN COMP OV Figure 31. Secondary Side Bias Supply Configuration + V in − NCP103x GND COMP Figure 32. Boost Circuit Configuration NCP1030, NCP1031 V DRAIN http://onsemi.com out − SECONDARY SIDE CONTROL V GND BIAS out ...
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... The NCP1030 is available in the space saving Micro8t package and is targeted for applications requiring The NCP1031 is targeted for applications and is available in the SO−8 package. The NCP103x includes an extensive set of features ...
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... V and 3.5 V. Under normal operating conditions, the charge (I ) and discharge (I CT(C) currents are typically 215 mA and 645 mA, respectively. The charge:discharge current ratio of 1:3 discharges of the total period. The Power Switch is disabled while C NCP1030, NCP1031 is discharging, guaranteeing a maximum duty cycle shown in Figure 35. C Ramp T Power Switch ...
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... Current Limit Comparator. If the sense voltage exceeds the reference level, the comparator resets the PWM Latch and switching is terminated. The NCP1030 and NCP1031 drain current limit thresholds are 0.5 A and 1.0 A, respectively. Each time the Power Switch Circuit turns ON, a narrow voltage spike appears across R ...
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... 1.04 8X 0.041 3.20 0.126 0.65 6X 0.0256 NCP1030, NCP1031 PACKAGE DIMENSIONS Micro8 DM SUFFIX CASE 846A−02 ISSUE F NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSION A DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0 ...
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... 0.25 (0.010 −Y− SEATING PLANE −Z− 0.25 (0.010 NCP1030, NCP1031 PACKAGE DIMENSIONS SO−8 D SUFFIX CASE 751−07 ISSUE 0.10 (0.004 SOLDERING FOOTPRINT 1.52 0.060 7.0 4.0 0.275 0.155 0.6 1.270 0.024 0.050 SCALE 6:1 http://onsemi ...
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... Micro8 is a trademark of International Rectifier. SENSEFET is a trademark of Semiconductor Components Industries, LLC. The products described herein (NCP1030 and NCP1031) may be covered by one or more of the following U.S. patents: 5,418,410; 5,477,175. There may be other patents pending. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein ...