6/10/03
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© 2003 Fairchild Semiconductor Corporation
MCT5200 MCT5201 MCT5210 MCT5211
LOW INPUT CURRENT
PHOTOTRANSISTOR OPTOCOUPLERS
Description
The MCT52XX series consists of a high-efficiency AlGaAs, infrared emitting
diode, coupled with an NPN phototransistor in a six pin dual-in-line package.
The MCT52XX is well suited for CMOS to LSTT/TTL interfaces, offering
250% CTR
CE(SAT)
with 1 mA of LED input current. When an LED input
current of 1.6 mA is supplied data rates to 20K bits/s are possible.
The MCT52XX can easily interface LSTTL to LSTTL/TTL, and with use of an
external base to emitter resistor data rates of 100K bits/s can be achieved.
Features
• High CTR
CE(SAT)
comparable to Darlingtons
• CTR guaranteed 0°C to 70°C
• High common mode transient rejection 5kV/µs
• Data rates up to 150 kbits/s (NRZ)
• Underwriters Laboratory (UL) recognized (file #E90700)
• VDE recognized (file #94766)
– Add option 300 (e.g., MCT5211.300)
Applications
• CMOS to CMOS/LSTTL logic isolation
• LSTTL to CMOS/LSTTL logic isolation
• RS-232 line receiver
• Telephone ring detector
• AC line voltage sensing
• Switching power supply
Parameters Symbol Device Value Units
TOTAL DEVICE
Storage Temperature T
STG
All -55 to +150 °C
Operating Temperature T
OPR
All -55 to +100 °C
Lead Solder Temperature T
SOL
All 260 for 10 sec °C
Total Device Power Dissipation @ 25°C (LED plus detector)
P
D
All
260 mW
Derate Linearly From 25°C 3.5 mW/°C
EMITTER
Continuous Forward Current I
F
All 50 mA
Reverse Input Voltage V
R
All 6 V
Forward Current - Peak (1 µs pulse, 300 pps) I
F
(pk) All 3.0 A
LED Power Dissipation
P
D
All 75 mW
Derate Linearly From 25°C All 1.0 mW/°C
DETECTOR
Continuous Collector Current I
C
All 150 mA
Detector Power Dissipation
P
D
All 150 mW
Derate Linearly from 25°C All 2.0 mW/°C
SCHEMATIC
6
1
6
1
6
1
1
2
6
5
COL
4 EMITTER
BASE
ANODE
CATHODE
3