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AMS2263MP Datasheet(PDF) 4 Page - Advanced Monolithic Systems Ltd |
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AMS2263MP Datasheet(HTML) 4 Page - Advanced Monolithic Systems Ltd |
4 / 12 page TERMINAL ASSIGNMENTS Pin Name I/O Description GND P Ground FB I Feedback input pin. The PWM duty cycle is determined by voltage level into this pin and SENSE pin input. RI I Internal Oscillator frequency setting pin. A resistor connected between RI and GND sets the PWM frequency. SENSE I Current sense input pin. Connected to MOSFET current sensing resistor node. VDD P Chip DC power supply pin. GATE O Totem-pole gate drive output for the power MOSFET. RECOMMENDED OPERATING CONDITION Symbol Parameter Min - Max Unit VDD VDD Supply Voltage 10 to 30 V RI RI Resistor Value 100 Kohm TA Operating Ambient Temperature -20 to 85 oC ELECTRICAL CHARACTERISTICS (TA = 25OC if not otherwise noted) Symbol Parameter Test Conditions Min Typ Max Unit Supply Voltage (VDD) I_VDD_Startup VDD Start up Current VDD =12.5V, RI=100K Measure Leakage current into VDD 3 20 uA I_VDD_Ops Operation Current VDD=16V, RI=100Kohm, VFB=3V 1.4 mA UVLO(ON) VDD Under Voltage Lockout Enter 7.5 8.5 9.5 V UVLO(OFF) VDD Under Voltage Lockout Exit (Recovery) 13.5 14.5 15.5 V VDD_Clamp VDD Zener Clamp Voltage IVDD = 5 mA 34 V Feedback Input Section(FB Pin) AVCS PWM Input Gain Δ VFB /ΔVcs 2.0 V/V VFB_Open VFB Open Loop Voltage 4.8 V IFB_Short FB pin short circuit current Short FB pin to GND and measure current 1 mA AMS 2263 4 Advanced Monolithic Systems http://www.ams-semitech.com |
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