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FAN3122TMX Scheda tecnica(PDF) 1 Page - Fairchild Semiconductor |
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FAN3122TMX Scheda tecnica(HTML) 1 Page - Fairchild Semiconductor |
1 / 21 page September 2008 © 2008 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN3121 / FAN3122 • Rev. 1.0.0 FAN3121 / FAN3122 Single 9A High-Speed, Low-Side Gate Driver Features Industry-Standard Pin-out with Enable Input 4.5 to 18V Operating Range 11.4A Peak Sink at VDD = 12V 9.7A Sink / 7.1A Source at VOUT = 6V Inverting Configuration (FAN3121) and Non-Inverting Configuration (FAN3122) Internal Resistors Turn Driver Off If No Inputs 23ns/19ns Typical Rise/Fall Times with 10nF Load 20ns Typical Propagation Delay Time Choice of TTL or CMOS Input Thresholds MillerDrive™ Technology Available in Thermally Enhanced 3x3mm 8-Lead MLP or 8-Lead SOIC Package (Pb-Free Finish) Rated from –40°C to +125°C Applications Synchronous Rectifier Circuits High-Efficiency MOSFET Switching Switch-Mode Power Supplies DC-to-DC Converters Motor Control Description The FAN3121 and FAN3122 MOSFET drivers are designed to drive N-channel enhancement MOSFETs in low-side switching applications by providing high peak current pulses. The drivers are available with either TTL (FAN312xT) or CMOS (FAN312xC) input thresholds. Internal circuitry provides an under-voltage lockout function by holding the output low until the supply voltage is within the operating range. FAN312x drivers incorporate the MillerDrive™ architecture for the final output stage. This bipolar / MOSFET combination provides the highest peak current during the Miller plateau stage of the MOSFET turn-on / turn-off process. The FAN3121 and FAN3122 drivers implement an enable function on pin 3 (EN), previously unused in the industry-standard pin-out. The pin is internally pulled up to VDD for active HIGH logic and can be left open for standard operation. The FAN3121/22 is available in a 3x3mm 8-lead thermally- enhanced MLP package or an 8-lead SOIC package. 1 2 3 6 7 8 4 5 VDD GND EN IN VDD OUT GND OUT 1 2 3 6 7 8 4 5 EN IN VDD GND VDD GND OUT OUT Figure 1. FAN3121 Pin Configuration Figure 2. FAN3122 Pin Configuration |
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