描述 Description

The FOD8318 is an advanced 2.5 A output current IGBT drive

optocoupler capable of driving most 1200 V / 150 A IGBTs. It is

ideally suited for fast?switching driving of power IGBTs and

MOSFETs used in motor control inverter applications and

high?performance power systems. It consists of an integrated gate

drive optocoupler featuring low RDS(ON) CMOS transistors to drive

the IGBT from rail to rail and an integrated high?speed isolated

feedback for fault sensing. The FOD8318 has an active Miller clamp

fuction to shut off the IGBT during a high dv/dt situation without the

need of a negative supply voltage. It offers critical protection features

necessary for preventing fault conditions that lead to destructive

thermal runaway of IGBTs.

It utilizes onsemi’s proprietary OPTOPLANAR? coplanar

packaging technology and optimized IC design to achieve high noise

immunity, characterized by high common mode rejection and power

supply rejection specifications.

The device is housed in a compact 16?pin small outline plastic

package that meets the 8 mm creepage and clearance requirements.

特性 Features

? High Noise Immunity Characterized by Common Mode Rejection

? 35 kV / s Minimum Common Mode Rejection

(Vcm = 1500 Vpeak)

? 2.5 A Peak Output Current Driving Capability for Most 1200 V /

150 A IGBT

? Optically Isolated Fault Sensing Feedback

? Active Miller Clamp to Shut Off the IGBT During High dv/dt

without Needing a Negative Supply Voltage

? “Soft” IGBT Turn?off

? Built?in IGBT Protection

? Desaturation Detection

? Under?voltage Lock Out (UVLO) Protection

? Wide Supply Voltage Range from 15 V to 30 V

? Use of P?Channel MOSFETs at Output Stage Enables Output

Voltage Swing Close to the Supply Rail (Rail?to?rail Output)

? 3.3 V / 5 V, CMOS/TTL?compatible Inputs

? High Speed

? 250 ns Max. Propagation Delay over Full Operating

Temperature Range

Features (continued)

? Extended Industrial Temperate Range,

?40°C to 100°C Temperature Range

? Safety and Regulatory Approvals

? UL1577, 4,243 VRMS for 1 min.

? DIN EN/IEC 60747?5?5,1,414 Vpeak

Working Insulation Voltage, 8000 Vpeak

Transient Isolation Voltage Ratings

? RDS(ON) of 1  (Typ.) Offers Lower Power

Dissipation

? User Configurable: Inverting, Non?inverting,

Auto?reset, Auto?shutdown

? 8 mm Creepage and Clearance Distances

Applications

? Industrial Inverter

? Induction Heating

? Isolated IGBT Drive