LH1547 查看數據表（PDF） - Siemens AG

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LH1547

Dual 1 Form A High-Voltage Solid State Relays

Siemens AG 

LH1525ACD

1 Form A, Dual 1 Form A

SOP Solid-State Relays

FEATURES

• High-speed operation

• 1500 Vrms I/O isolation

• Current-limit protection

• High surge capability

• Linear, ac/dc operation

• Clean, bounce-free switching

• Extremely low power consumption

• High-reliability monolithic receptor

• Surface-mountable

APPLICATIONS

• PCMCIA Type 2 cards

• Battery powered switch applications

• General telecom switching

• Telephone line interface

– On/off hook

– Ring relay

– Ground start

• Programmable controllers

• Instrumentation

DESCRIPTION

The LH1525 relay is an SPST normally open switche (1 Form A

and Dual 1 Form A respectively) in small-outline packages (SOP).

They require a minimal amount of LED drive current to operate,

making them ideal for battery powered and power consumption

sensitive applications.

The relays are constructed using a GaAlAs LED for actuation

control and an integrated monolithic die for the switch output.

The die, fabricated in a high-voltage dielectrically isolated

BCDMOS technology, is comprised of a photodiode array, switch-

control circuitry, and MOSFET switches. In addition, the relays

employ current-limiting circuitry enabling it to pass FCC 68.302

and other regulatory surge requirements when overvoltage

protection is provided.

The LH1525 (1 Form A) is packaged in an 8-pin, plastic SOP

(LH1525ACD). Available in sticks or on tape and reel.

Figure 1. LH1525ACD Functional/Pin Diagram

S

HEAT SINK

S'

8

5

S

S

S

S'

1

2

3

4

Siemens Microelectronics, Inc. • Optoelectronics Division

www.smi.siemens.com/opto/

8 of 25

October 1998

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