Product Description:
vishay solid state relay LH1539AB FEATURES
Solid-state relay and autopolarity optocoupler
in one 8-pin
package
Isolation test voltage 5300 VRMS
Surface mountable
Optocoupler
- Bidirectional current detection
- High CTR: 300 %
Solid state relay
- Form A LH1525 type
- Low operating current
- Typical RON 25
- Load voltage 400 V
- Load current 120 mA
- Current limit protection
- Linear, AC/DC operation
- Clean bounce free switching
- Low power consumption
Compliant to RoHS Directive 2002/95/EC and in
accordance to WEEE 2002/96/EC
Applications
General telecom switching
- On/off hook switching
- Dial pulse
- Ring current detection
- Loop current sensing DESCRIPTION
The LH1539 telecom switch consists of an optically isolated
solid-state relay (SSR) form A and a bidirectional input
optocoupler in a single 8-pin package. The SSR is ideal for
switch hook and dial-pulse switching while the optocoupler
performs ring detect and loop current sensing functions.
Both the SSR and optocoupler provide 5300 VRMS of
input-to-output isolation voltage.
The SSR is integrated on a monolithic receptor die using
smart power technology. The SSR features low On
resistance, high breakdown voltage, and current-limit
circuitry that protects the relay from telephone line induced
lightning surges.
The optocoupler provides bidirectional current sensing via
two anti parallel GaAs infrared emitting diodes. Very high
current transfer ratio (CTR) is achieved by coupling to a
photodarlington transistor. This high CTR allows the user to
minimize the size of the ring detector capacitor
Company Contact:
Contact Name: Amy Chow
Company Name: A&s Automation Co, Ltd
Email:
Tel: 862866915552
Fax: 862886129221
Street Address: 2nd Floor,
Xinhelinghang Building, Middle
Section Airport Highway(west),
Gaoxin District, Chengdu City, S
Chengu, China 610000
China
Member name: relays
Country:
China
Member Since: 17 July 2014
Total Leads:
110 relays Import Export Business Leads
Business focus: Relays, Sensors
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