NCP391FCALT2G ONSEMI [ON Semiconductor], NCP391FCALT2G Datasheet
NCP391FCALT2G
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NCP391FCALT2G Summary of contents
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NCP391 Positive Overvoltage Protection Controller with Internal Low R ON The NCP391 is able to disconnect the systems from its output pin when wrong input operating conditions are detected. The system is positive overvoltage protected up to +28 V. This ...
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Wall Adapter − AC/DC − USB ENABLE/ Microprocessor Figure 1. Typical Application Circuit 1 INPUT 2 EN Block EN 6 Figure 2. Functional Block Diagram NCP391 CC/CV OUT 3 Charger or 4 ...
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PIN FUNCTION DESCRIPTION Pin No. Symbol Function INPUT Input Voltage Pins. These pins are connected to the Wall Adapoter (AC−DC, Vbus ..). low A1, A2 ESR ceramic capacitor, or larger, must be connected ...
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ELECTRICAL CHARACTERISTICS unless otherwise noted.) Characteristic Input Voltage Range Undervoltage Lockout Threshold (Note 4) NCP391FCAL Undervoltage Lockout Hysteresis Overvoltage Lockout Threshold (Note 4) NCP391FCAL Overvoltage Lockout Hysteresis NCP391FCAL V versus V Resistance in out Supply Quiescent Current UVLO Supply Current ...
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UVLO 0.3 V out t start 1.2 V FLAG Figure 3. Startup 1 dis out V − DS(on) 0.3 V FLAG Figure 5. Disable ...
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TYPICAL OPERATING CHARACTERISTICS Figure 7. Startup V = Ch1 Ch3 in out Figure 9. FLAG Going Up Delay V = Ch3, FLAG = Ch2 out Figure 11. Initial Overvoltage Delay V = Ch1 Ch2, FLAG = ...
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TYPICAL OPERATING CHARACTERISTICS Figure 13. Inrush Current with C I charge = 1 A, Output Wall Adaptor Inductance 1 mH Figure 15. Output Short Circuit (Zoom Fig. 14) = 100 mF, out http://onsemi.com 7 Figure 14. Output Short Circuit ...
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IN IN Operation The NCP391 provides overvoltage protection for positive voltage low R protects the systems (i.e.: charger) connected on the Vout pin, against positive overvoltage. At powerup, with EN pin = low, the output ...
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out FLAG = Low Reset Timer V < UVLO > OVLO out FLAG = Low Timer Count OVLO > V > UVLO in Timer Check Reset Timer V < UVLO ...
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Undervoltage Lockout (UVLO) To ensure proper operation under any conditions, the device has a built−in undervoltage lockout (UVLO) circuit. During V positive going slope, the output remains in disconnected from input until V voltage is below UVLO, in plus hysteresis, ...
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... ORDERING INFORMATION Device NCP391FCALT2G †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. SELECTION GUIDE The NCP391 can be available in several undervoltage and overvoltage thresholds versions. Part number is designated as follows: ...
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D PIN A1 È È REFERENCE È È 0.10 C TOP VIEW 0. 0.05 C NOTE 3 A1 SIDE VIEW BOTTOM VIEW ...