HCPL3700S Datasheet, PDF (1/9 Pages) Fairchild Semiconductor – AC/DC TO LOGIC INTERFACE OPTOCOUPLER

AC/DC TO LOGIC INTERFACE
OPTOCOUPLER
HCPL-3700
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.
8
1
FEATURES
TRUTH TABLE
• AC or DC input
(Positive Logic)
• Programmable sense voltage
• Logic level compatibility
• Threshold guaranteed over temperature
(0°C to 70°C)
• Optoplanar™ construction for high common
mode immunity
Input
H
L
Output
L
H
8
8
1
• UL recognized (file # E90700)
APPLICATIONS
• Low voltage detection
A 0.1 ^{µF bypass capacitor}
must be connected between
pins 8 and 5.
AC 1
• 5 V to 240 V AC/DC voltage sensing
• Relay contact monitor
DC+ 2
• Current sensing
• Microprocessor Interface
• Industrial controls
AC/DC
POWER
RX
HCPL-3700
LOGIC
DC- 3
AC 4
GND 1
GND 2
ABSOLUTE MAXIMUM RATINGS (No derating required up to 70°C)
Parameter
Storage Temperature
Operating Temperature
Lead Solder Temperature
EMITTER
Average
Input Current Surge
3 ms, 120 Hz Pulse Rate
Transient
10 µs, 120 Hz Pulse Rate
Input Voltage (Pins 2-3)
Input Power Dissipation
(Note 1)
Total Package Power Dissipation
(Note 2)
DETECTOR
Output Current (Average)
(Note 3)
Supply Voltage (Pins 8-5)
Output Voltage (Pins 6-5)
Output Power Dissipation
(Note 4)
Symbol
T_STG
T_OPR
T_SOL
I_IN
V_IN
P_IN
P_T
I_O
V_CC
V_O
P_O
Value
-55 to +125
-40 to +85
260 for 10 sec
50 (MAX)
140 (MAX)
500 (MAX)
-0.5 (MIN)
230 (MAX)
305 (MAX)
30 (MAX)
-0.5 to 20
-0.5 to 20
210 (MAX)
1
8 VCC
7 NC
6 VO
5 GND
Units
°C
°C
°C
mA
V
mW
mW
mA
V
V
mW
200003A