MH88612BV-K

Features:

• Transformerless 2-wire to 4-wire conversion
• Battery and ringing feed to line.
• Off-hook and dial pulse detection.
• Ring ground over-current protection.
• Constant current feed with constant voltage foldover.
• Relay driver.
• Power Denial.
• Wide Operating Range.
• Pin for pin compatible 600R and 900R variants.


Application

Line interface for:
• PABX
• Intercoms
• Key Telephone Systems
• Control Systems


Pinout




Specifications

	Parameter	Symbol	Min	Max	Units
1	DC Supply Voltage LPGND = AGND	VCC	-0.3	9	V
		VEE	-9	0.3	V
		VBAT	-60	0.3	V
		VRLY	-0.3	40	V
2	Storage Temperature	TS	-40	100	°C
3	3 Package Power Dissipation	PD		2	W

Description

The SLIC MH88612BV-K provides a complete interface between a switching system and a subscriber loop. Functions of MH88612BV-K provided include battery feed and ringing feed to the subscriber line, 2-Wire to 4-Wire hybrid interfacing, constant current feed with constant voltage foldback, and dial pulse detection. The device is fabricated using thick film hybrid technology in a 20-pin single in-line package.