Datasheet

AC/DC TO LOGIC INTERFACE
OPTOCOUPLER
200003A
8
1
8
1
8
1
FEATURES
• AC or DC input
• Programmable sense voltage
• Logic level compatibility
• Threshold guaranteed over temperature
(0°C to 70°C)
• Optoplanar™ construction for high common
mode immunity
• UL recognized (file # E90700)
DESCRIPTION
The HCPL-3700 voltage/current threshold detection optocoupler consists of
an AlGaAs LED connected to a threshold sensing input buffer IC which are
optically coupled to a high gain darlington output. The input buffer chip is
capable of controlling threshold levels over a wide range of input voltages
with a single resistor. The output is TTL and CMOS compatible.
APPLICATIONS
• Low voltage detection
• 5 V to 240 V AC/DC voltage sensing
• Relay contact monitor
• Current sensing
• Microprocessor Interface
• Industrial controls
A 0.1
µF bypass capacitor
must be connected between
pins 8 and 5.
AC/DC
POWER
LOGIC
R
X
HCPL-3700
GND 1 GND 2
Parameter Symbol Value Units
Storage Temperature T
STG
-55 to +125 °C
Operating Temperature T
OPR
-40 to +85 °C
Lead Solder Temperature T
SOL
260 for 10 sec °C
EMITTER Average 50 (MAX)
Input Current Surge 3 ms, 120 Hz Pulse Rate I
IN
140 (MAX) mA
Transient 10 µs, 120 Hz Pulse Rate 500 (MAX)
Input Voltage (Pins 2-3) V
IN
-0.5 (MIN) V
Input Power Dissipation (Note 1) P
IN
230 (MAX) mW
Total Package Power Dissipation (Note 2) P
T
305 (MAX) mW
DETECTOR
Output Current (Average) (Note 3) I
O
30 (MAX) mA
Supply Voltage (Pins 8-5) V
CC
-0.5 to 20 V
Output Voltage (Pins 6-5) V
O
-0.5 to 20 V
Output Power Dissipation (Note 4) P
O
210 (MAX) mW
ABSOLUTE MAXIMUM RATINGS
(No derating required up to 70°C)
Input Output
HL
LH
TRUTH TABLE
(Positive Logic)
1
2
3
4 5
8
6
7
AC
DC+
DC-
AC GND
V
NC
V
O
CC
HCPL-3700