NIS5101 ON Semiconductor, NIS5101 Datasheet
NIS5101
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NIS5101 Summary of contents
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... Thermal 4, 8 Shutdown Drain 3 Current Current Limit Limit Input − http://onsemi.com MARKING DIAGRAM 8 S−PAK NIS5101EX EX SUFFIX 1 AYWWG CASE 553AA for Thermal Latch or 2 for Thermal Auto−retry A = Assembly Location Y = Year WW = Work Week G = Pb−Free Device ORDERING INFORMATION ...
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... Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 1. Applied between Input + and Input − pins only, and using an external 68 V bi−directional TVS device (P6SMB68AT3) connected across these pins. NIS5101 Description Symbol 2 Cu, double−sided board, 1 oz.) ...
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... UVLO 2. Pulse Test: Pulse width 300 ms, duty cycle 2%. 3. Switching characteristics are independent of operating junction temperatures. 4. Verified by design. 5. Please refer to explanation about the device’s current limit operation in short circuit and overload conditions. NIS5101 = 25°C unless otherwise noted LIMIT , kHz) ...
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... Figure 4. OVLO Adjustment, T 100 90 Turn−Off −40° 100 OVLO_R (kW) ext Figure 6. OVLO Adjustment, T NIS5101 TYPICAL PERFORMANCE CURVES (T = 25°C unless otherwise noted Overload −40°C 35 Overload 25°C Overload 120° 1000 10 100 ...
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... A R UVLO R OVLO + + Figure 8. Typical Application Bounce Bus Voltage Load Voltage Load Current 1 A/div Figure 9. Turn On Waveforms for 470 mF Load Capacitor http://onsemi.com 5 + Input + DC−DC Converter UVLO/EN NIS5101 Drain OVLO Current Limit Input − R limit Load Capacitor 470 mF GND −48 V ...
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... NIS5101 Bus Voltage Device Reaching Thermal Shutdown Figure 10. Typical Operation Waveforms of the Auto−Retry Device Load Voltage Bus Voltage Load Current 1 A/div Device Reaching Thermal Shutdown Figure 11. Typical Operation Waveforms of the Latch Off Device http://onsemi.com 6 Load Capacitor 4200 mF GND Load ...
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... Figure 14. Increased Delay Time Circuit NIS5101 + Pwr Good NUD3048 100 k Input + NIS5101 Drain Current NUD3048 Limit Input − MM3Z5V1 R OVLO 422 k + Input + 100 mF OVLO NIS5101 R UVLO Drain UVLO/EN Current + Limit Input − limit delay Open UVLO R = 470k UVLO R = 200k UVLO 80 ...
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... TYPICAL DEVICE PERFORMANCE FOR DIFFERENT SYSTEM INDUCTANCE VALUES System Inductance + + Figure 15. System Inductance Test Circuit 10 1 0.1 0. Figure 16. Total System Inductance vs. Current NIS5101 R UVLO Input + UVLO/EN NIS5101 R OVLO Drain OVLO Current Limit Input − CURRENT (AMPS) http://onsemi.com ...
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... UVLO/ ENABLE 100 Input − NIS5101 OPERATION DESCRIPTION Faults Once the load capacitance is charged, the SENSEFET will become fully enhanced as long as the current does not reach the current limit threshold shut−down due to an overvoltage, undervoltage or thermal fault. Both the UVLO and OVLO circuits incorporate hysteresis to assure clean turn− ...
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... Input − Figure 18. Overvoltage Lockout Circuit NIS5101 To reduce nuisance tripping due to transients and noise spikes, a capacitor may be added from the UVLO pin to the Input – pin. This will create a low pass filter with a cutoff frequency of f. The required capacitance on this pin is: ...
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... NIS5101 it is important to know is that the current sense reference . A short voltage of the device is 50 mV. Knowing this information, DSon it is possible to use Figure 2 on the datasheet for the current limit to calculate the ratio for any condition. For ”normal” operating condition, the overload curve would apply ...
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... The product described herein (NIS5101), may be covered by one or more of the following U.S. patents: 6,781,502; 7,099,135. Other patents may be pending. SENSEFET and SMART HotPlug are trademarks of Semiconductor Components Industries, LLC. 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 ...