LH1544AB

Control Voltage Range :
Product Type : PCB Mount
Output Device : MOSFET
Mounting Style : Through Hole
Contact Form : 2 Form A (DPST-NO)
Load Voltage Rating : 200 V
Package / Case : PDIP-8
Load Current Rating : 0.055 A


Features:

• Dual Channel, LH1541 Type
• Low Capacitance Switch (5.0 pF)
• Isolation Test Voltage 5300 VRMS
• Extremely High OFF-resistance
• Load Voltage 200 V
• Clean Bounce Free Switching
• Low Power Consumption
• High Reliability Monolithic detector
• Lead-free component
• Component in accordance to RoHS 2002/95/EC and WEEE 2002/96/EC

Application

Instrumentation
- Thermocouple Switching
- Analog Multiplexing
Reed Relay Replacement
Programmable Logic Controllers
Data Acquisition
Test Equipment

Specifications

Absolute Maximum Ratings, Tamb = 25
Stresses in excess of the absolute Maximum Ratings can cause permanent damage to the device. Functional peration of the device is not implied at these or any other conditions in excess of those given in the operational sections of this document. Exposure to absolute Maximum Ratings for extended periods of time can adversely affect reliability. Absolute Maximum Ratings, Tamb = 25
Stresses in excess of the absolute Maximum Ratings can cause permanent damage to the device. Functional operation of the device is not implied at these or any other conditions in excess of those given in the operational sections of this document. Exposure to absolute Maximum Ratings for extended periods of time can adversely affect reliability.

Parameter	Test condition	Symbol	Value	Unit
LED continuous forward current		IF	50	mA
LED reverse voltage	IR 10 A	VR	8.0	V
DC or peak AC load voltage	IL 50 A	VL	200	V
Continuous DC load current - one pole operating		IL	55	mA
Continuous DC load current - two pole operating		IL	40	mA
Peak load current (single shot)	t = 100 ms	IP	100	mA
Ambient temperature range		Tamb	- 40 to + 85
Storage temperature range		Tstg	- 40 to + 150
Pin soldering temperature	t = 10 s max	Tsld	260
Input/output isolation voltage		VISO	5300	VRMS
Pole-to-pole isolation voltage (S1 to S2)1)	dry air, dust free, at sea level		1600	V
Output power dissipation (continuous)		Pdiss	600	mW

¹⁾ Breakdown occurs between the output pins external to the package




Description

These dual SSRs (LH1544AB, Dual 1 Form A) are SPST normally open switches which can replace electromechanical relays in many applications. The relays provide a low-capacitance, high-voltage switch contact with high off-resistance and low switch-offset voltage. These characteristics, combined with high-speed actuation, result in an SSR which is ideal for small signal and dc instrumentation applications. The LH1544AB are constructed by using a GaAlAs LED for actuation control and an integrated monolithic die for the switch output. The die is comprised of a photodiode array, switch-control circuity, and low-capacitance MOSFET switches.