Datasheet > FAN3121_13

FAN3121_13

更新时间： 2022-04-19 09:59:18

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		驱动器栅极栅极驱动
页数	文件大小	规格书
21页	1617K
描述
Single 9-A High-Speed, Low-Side Gate Driver

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FAN3121_13 数据手册

June 2013

FAN3121 / FAN3122

Single 9-A High-Speed, Low-Side Gate Driver

Features

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

input thresholds (FAN312xT) or V_DD-proportional CMOS

input thresholds (FAN312xC). Internal circuitry provides

an under-voltage lockout function by holding the output

low until the supply voltage is within the operating range.

Industry-Standard Pin-out with Enable Input

4.5-V to 18-V Operating Range

11.4 A Peak Sink at V_DD= 12 V

9.7-A Sink / 7.1-A Source at V_OUT= 6 V

Inverting Configuration (FAN3121) and

Non-Inverting Configuration (FAN3122)

Internal Resistors Turn Driver Off If No Inputs

23-ns / 19-ns Typical Rise/Fall Times (10 nF Load)

20-ns Typical Propagation Delay Time

Choice of TTL or CMOS Input Thresholds

MillerDrive™ Technology

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 V_DDfor active HIGH logic and can be left open for

standard operation.

Available in Thermally Enhanced 3x3 mm 8-Lead

MLP or 8-Lead SOIC Package (Pb-Free Finish)

Rated from –40°C to +125°C

Automotive Qualified to AEC-Q100 (F085 Versions)

The commercial FAN3121/22 is available in a 3x3 mm

8-lead thermally-enhanced MLP package or an 8-lead

SOIC package. The AEC-Q100 automotive-qualified

versions are available in the 8-lead SOIC package.

Applications

Synchronous Rectifier Circuits

High-Efficiency MOSFET Switching

Switch-Mode Power Supplies

DC-to-DC Converters

Motor Control

Automotive-Qualified Systems (F085 Versions)

VDD

OUT

GND

OUT

GND

Figure 1. FAN3121 Pin Configuration

Figure 2. FAN3122 Pin Configuration

FAN3121 / FAN3122 • Rev. 1.0.2

www.fairchildsemi.com

12 3 4 5 6 7...21

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