Datenblatt-Suchmaschine für elektronische Bauteile |
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FAN3180 Datenblatt(PDF) 2 Page - ON Semiconductor |
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FAN3180 Datenblatt(HTML) 2 Page - ON Semiconductor |
2 / 19 page June 2013 © 2012 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN3180 • Rev. 1.0.3 FAN3180 Single 2-A Low-Side Driver with 3.3-V LDO Features LDO 3.3-V, 15-mA Output ±1% at 25°C, ±2.5% Total Variation Gate Driver Peak 2.8-A Sink / 2.5-A Source at V DD = 12 V Controlled Output Pulses at Startup and Shutdown Non-Inverting Logic Configuration TTL-Compatible Input Thresholds 23-ns Typical Delay Time 19-ns / 13-ns Rise and Fall Times with 1-nF Load General -40°C to +125°C Operation Temperature 5-V to 18-V Operating Range V ON / VOFF UVLO of 4.75 V / 4.55 V 200-µA Maximum Standby Supply Current Lead (Pb)-Free Green 5-Pin SOT23 Package Applications Gate Drive with Power for the MCU Switched-Mode Power Supplies, Consumer Electronics, Portable Hand Tools Description The FAN3180 combines a high-speed low-side gate driver with a 3.3-V output Low Drop Out (LDO) regulator. The gate driver is rated to 2.8-A peak current at VDD of 12 V and is designed to drive an N-channel enhancement-mode MOSFET in low-side switching applications. The FAN3180 also integrates a 3.3-V, 15- mA LDO with tight voltage tolerance of ±1% at 25°C and ±2.5% of total variation for powering external microcontrollers. Internal circuitry provides an Under-Voltage Lockout (UVLO) function by holding the output low until the supply voltage is within the operating range and the first full input pulse is detected. The FAN3180 has UVLO thresholds of 4.75-V VON and 4.55-V VOFF and a maximum standby supply current of 200 µA. The driver delivers fast MOSFET switching performance to maximize efficiency in high-frequency power converter designs. It incorporates the MillerDrive™ architecture for the final output driver stage. This bipolar-MOSFET combination provides high peak current during the Miller plateau stage of the MOSFET turn-on / turn-off process to minimize switching loss, while providing rail-to-rail voltage swing and reverse- current capability. Thermal shutdown function is included as an additional safety feature. 3V3 VDD MCU PWM Input Load 1 4 5 3 2 UVLO LDO OUT IN+ GND VDD Figure 1. Typical Application |
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