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FODM8801B

OptoHiT™ Series, High-Temperature Phototransistor Optocoupler in Half-Pitch Mini-Flat 4-Pin Package

Fairchild Semiconductor 

April 2013

FODM8801A, FODM8801B, FODM8801C

OptoHiT™ Series, High-Temperature Phototransistor

Optocoupler in Half-Pitch Mini-Flat 4-Pin Package

Features

■ Utilizing Proprietary Process Technology to Achieve

High Operating Temperature: up to 125°C

■ Guaranteed Current Transfer Ratio (CTR)

Specifications Across Full Temperature Range

– Excellent CTR Linearity at High-Temperature

– CTR at Very Low Input Current, IF

■ High Isolation Voltage Regulated by Safety Agency:

C-UL / UL1577, 3750 VACRMS for 1 minute and

DIN EN/IEC60747-5-5

■ Compact Half-Pitch, Mini-Flat, 4-Pin Package

(1.27 mm Lead Pitch, 2.4 mm Maximum Standoff

Height)

■ > 5mm Creepage and Clearance Distance

■ Applicable to Infrared Ray Reflow, 245°C

Applications

■ Primarily Suited for DC-DC Converters

■ Ground-Loop Isolation, Signal-Noise Isolation

■ Communications – Adapters, Chargers

■ Consumer – Appliances, Set-Top Boxes

■ Industrial – Power Supplies, Motor Control,

Programmable Logic Control

Description

In the OptoHiT™ series, the FODM8801 is a first-of-kind

phototransistor, utilizing Fairchild’s leading-edge

proprietary process technology to achieve high operating

temperature characteristics, up to 125°C. The opto-

coupler consists of an aluminum gallium arsenide

(AlGaAs) infrared light-emitting diode (LED) optically

coupled to a phototransistor, available in a compact half-

pitch, mini-flat, 4-pin package. It delivers high current

transfer ratio at very low input current. The input-output

isolation voltage, VISO, is rated at 3750 VACRMS.

Schematic

Package

ANODE 1

4 COLLECTOR

CATHODE 2

3 EMITTER

Figure 1. Schematic

Figure 2. Half-Pitch Mini-Flat

©2010 Fairchild Semiconductor Corporation

FODM8801X Rev. 1.1.2

www.fairchildsemi.com

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