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Solid state relay driver Broadcom ACPL-K308U-500E with photovoltaic diode array and turn off circuit

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Solid state relay driver Broadcom ACPL-K308U-500E with photovoltaic diode array and turn off circuit

Operating Temperature : -40℃~+125℃

Isolation voltage(Vrms) : 5kV

Voltage - Supply : 1.4V

Number of Channels : 1

Description : 1.4V SOIC-8-6.8mm Isolators - Gate Drivers RoHS

Mfr. Part # : ACPL-K308U-500E

Model Number : ACPL-K308U-500E

Package : SOIC-8-6.8mm

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Product Overview

The Broadcom ACPL-K308U is an industrial photovoltaic driver designed for high-voltage MOSFETs in solid-state relay applications. It features an AlGaAs infrared LED input optically coupled to a photovoltaic diode array and a turn-off circuit. This driver enables fast turn-on and turn-off for applications such as inrush current prevention, insulation resistance measurement, and leakage current detection. It offers galvanic isolation and high input-to-output insulation voltage, making it suitable for demanding industrial environments.

Product Attributes

Brand: Broadcom
Model: ACPL-K308U
Package: Stretched SO-8
Certifications: IEC/EN/DIN EN 60747-5-5, UL 1577, CSA Component Acceptance
Material Group: IIIa (DIN VDE 0109)
Pollution Degree: 2 (DIN VDE 0110/1.89)
Climatic Classification: 40/125/21

Technical Specifications

Parameter	Symbol	Minimum	Typical	Maximum	Units	Test Conditions	Notes
Operating Temperature Range	TA	-40		125	C
Open Circuit Voltage	VOC	5.4	8.0		V	IF = 5 mA, IO = 0 mA
Open Circuit Voltage	VOC	5.8	8.2		V	IF = 10 mA, IO = 0 mA
Short Circuit Current	ISC	11	40		A	IF = 5 mA, VO = 0V
Short Circuit Current	ISC	24	70		A	IF = 10 mA, VO = 0V
Input Forward Voltage	VF	1.25	1.4	1.85	V	IF = 5 mA
Turn On Time	TON		100	295	s	IF = 5 mA, CL = 1 nF
Turn On Time	TON		50	140	s	IF = 10 mA, CL = 1 nF
Turn Off Time	TOFF		28	45	s	IF = 5 mA, CL = 1 nF
Turn Off Time	TOFF		23	40	s	IF = 10 mA, CL = 1 nF
Input-Output Momentary Withstand Voltage	VISO			5000	VRMS	RH 50%, t = 1 minute; TA = 25C	UL 1577
External Air Gap (Clearance)	L(101)	8			mm
External Tracking (Creepage)	L(102)	8			mm
Maximum Working Insulation Voltage	VIORM			1140	VPEAK		IEC/EN/DIN EN 60747-5-5
Input Current (ON)	IF(ON)	5		10	mA
Input Voltage (OFF)	VF(OFF)	0		0.8	V

Applications

Solid state relay module
Inrush current prevention
Insulation resistance measurement in battery systems, solar PV inverters, EV charging systems, and motor winding insulation.

2411221123_Broadcom-ACPL-K308U-500E_C17484739.pdf

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