6N138 - Product Detail

Circuit and Package

Circuit

Package

Features

High CTR - 600%Typical
3000V Isolation
High Output Current - 60mA
Low Input Current Requirement - 0.5mA

Description

The 6N138 is an optically coupled isolator. It consists of an infrared emitting diode and an integrated high gain photon detector to provide 3000Vdc electrical insulation, 500V/µS common mode transient immunity and extremely high current transfer ratio between input and output. Separate pins for the photodiode and output stage result in TTL compatible saturation voltages and high speed operation. Where desired the VCC and VO terminals may be tied together to achieve conventional photodarlington operation. A base access terminal allows a gain bandwidth adjustment to be made.

Datasheet

Absolute Maximum Ratings (Ta=25°C)

Storage Temperature	-55°C to +125°C
Operating Temperature	0°C to +70°C
Lead Soldering Temperature	260°C 1.6mm from case for 10S
Input-to-Output Isolation Voltage	3000V

Input Diode

Forward DC Current	20mA
Reverse DC Voltage	5V
Peak forward Current	1.0A	<1µS p.w. 300 pps
Power Dissipation	35mW

Output Transistor

Current	60mA	I_O
Emitter-Base Reverse Voltage (pin 5-7)	0.5V
Supply and Output Voltage- V_CC (pin 8-5), V_O (pin 6-5)	-0.5 to 7.0V
Power Dissipation	35mW

Electro-optical Characteristics

Input Diode Electrical Characteristics

Parameter	Symbol	Test Conditions	Min	Typ	Max	Units
Forward Voltage	V_F	I_F = 1.6, T_A= 25^°C		1.4	1.7	V
Reverse Breakdown Voltage	BV_R	I_R= 10mA T_A= 25^°C	5.0			V

Coupled Electrical Characteristics

Parameter	Symbol	Test Conditions	Min	Typ	Max	Units
DC Current Transfer Ratio	CTR	I_F= 1mA, VO= 0.4V V_CC= 4.5V	300	600		%
Logic Low Output Voltage	V_OL	I_F= 1.6mA, I_O= 4.8mA, V_CC= 4.5V		0.1	0.4	V
Logic High Output Current	I_OH	I_F= 0, V_O=V_CC= 7V		0.1	250	mA
Logic Low Supply Current	I_CCL	I_F= 1.6mA, V_O= open V_CC= 5.0V		0.2		mA
Logic High Supply Current	I_CCH	I_F= 0mA, V_O= open V_CC= 5.0V		10		nA
Input Capacitance	C_IN	f= 1Mhz, v_F= 0		60		pF
Input-Output Insulation Leakage Current	I_IO	45% Relative Humidity, T_A= 25^°C, t= 5S, V_IO= 3KVdc			1.0	mA
Input-to-Output Isolation Resistance	R_IO	V_IO= 500V		10¹¹		Ω
Capacitance	C_IO	f= 1Mhz		0.6		pF
Delay Time High-Low	t_PHL	I_F= 1.6 mA, R_L= 2.2KΩ		1	10	mS
Delay Time Low-High	t_PLH	I_F= 1.6 mA, R_L= 2.2KΩ		4	35	mS
Input-to-Output Isolation Voltage			3000			V