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MICROPAC INDUSTRIES, INC. HYBRID MICROELECTRONICS PRODUCTS DIVISION • 905 E. Walnut St., Garland, TX 75040 • (972) 272-3571 • Fax (972) 494-2281

www.micropac.com

E-MAIL: hybridsales@micropac.com

02/15/01

53124

RADIATION TOLERANT, ± 90V - 0.8A

POWER MOSFET OPTOCOUPLER

Mii

HYBRID MICROELECTRONICS

PRODUCTS DIVISION

Features:

•

Design Tested to 100 krad (Si) Total Dose

•

Hermetically Sealed in 8-Pin Dual-In-Line

Package

•

Performance over –55°C to +125°C

•

Compact Solid State Bi-directional Switch

•

AC/DC Power Switching

•

Maximum Average Current

AC/DC:

0.8 A

(1)

DC only: 1.6 A

(1)

Per Derating Curves (Figure 3)

AC/DC:

0.5 A

DC only: 1.0 A

•

Optically Coupled

•

Input/Output Isolation Tested to 1500 VDC

•

High Level of Transient Immunity

•

3 A Output Surge Current

•

Shock and Vibration Resistant

•

MIL-PRF-38534

•

Same foot print as HSSR7111 / Mii 53111 &

Electrically Similar

Applications:

•

Satellite/Space systems

•

Military/High Reliability Systems

•

Standard 28 VDC and 48 VDC Load Driver

•

Standard 24 VAC Load Driver

•

Aircraft Controls

•

AC/DC Electromechanical and Solid State

Relay Replacement

•

I/O Modules

•

Switching Heaters

DESCRIPTION

The 53124 is a single channel power MOSFET optocoupler which is suitable as a pin for pin replacement for the Mii

53111 when radiation tolerant performance and similar electrical performance to the 53111 is required. The primary

difference between the 53124 and 53111 is that the radiation tolerant power MOSFETs employed in the 53124

higher power dissipation for the same current levels relative to the 53111.

The popular eight pin, hermetic dual-in-line ceramic package combined with 1500 VDC isolation between input and

output, makes this optocoupler ideal for solid-state relay applications. Performance is specified over the full military

temperature range. This device is available as COTS, or as fully compliant MIL-PRF-38534 Class H or with custom

screening. Lead options support both through-hole and surface-mount assembly. Gold plated leads are standard,

but other lead finishes per MIL-PRF-38534 are also available.

Functionally, the device operates as a single-pole, normally open (1 Form A) solid-state relay. The device is

actuated by an input current, which can be supplied from standard logic types such as open-collector TTL. The

input current biases a light emitting diode that is optically coupled to an integrated photovoltaic diode array. The

photovoltaic array powers control circuitry that operates the output MOSFETs. Optimum switching of either AC or

DC loads is provided by a configurable output. For AC loads, Connection A in Figure 1 must be used. Connection

A will also switch DC loads but Connection B, in Figure 1, provides DC-only operation with the advantages of

substantial reduction in on-resistance and twice the output current capability as that obtained with Connection A.