4
Recommended Protection for
Output Transistors
During switching transitions, the
output transistors Q1 and Q2 of
the HCPL-3000 can conduct
large amounts of current. Figure
1 describes a recommended
circuit design showing current
limiting resistors R
1
and R
2
which are necessary in order to
prevent damage to the output
transistors Q1 and Q2 (see Note
7). A bypass capacitor C
1
is also
recommended to reduce power
supply noise.
Absolute Maximum Ratings
Parameter Symbol Min. Max. Unit Conditions Fig. Note
Storage Temperature T
S
-55 125 °C
Operating Temperature T
A
-20 80 °C
Input Continuous Current I
F
25 mA 9 1
Reverse Voltage V
R
6VT
A
= 25°C
Supply Voltage V
CC
18 V
Output 1 Continuous Current I
O1
0.5 A 10,11 1
Peak Current 1.0 A Pulse Width < 5 µs, 1
Duty cycle = 1%
Voltage V
O1
18 V
Output 2 Continuous Current I
O2
0.6 A 10,11,12 1
Peak Current 2.0 A Pulse Width < 5 µs, 12 1
Duty cycle = 1%
Output Power Dissipation P
O
500 mW 10 1
Total Power Dissipation P
T
550 mW 11 1
Lead Solder Temperature 260°C for 10 s, 1.0 mm below seating plane
Insulation and Safety Related Specifications
Parameter Symbol Value Units Conditions
Min. External Air Gap L(IO1) 6.0 mm Shortest distance measured through air, between
(External Clearance) two conductive leads, input to output
Min. External Tracking L(IO2) 6.0 mm Shortest distance path measured along outside surface
Path (External Creepage) of optocoupler body between the input and output leads
Min. Internal Plastic 0.15 mm Through insulation distance conductor to conductor
Gap (Internal Clearance) inside the optocoupler cavity
Recommended Operating Conditions
Parameter Symbol Min. Max. Units
Power Supply Voltage V
CC
5.4 13 V
Input Current (ON) I
F(ON)
8* 20 mA
Input Current (OFF) I
F(OFF)
-0.2mA
Operating Temperature T
A
-20 80 °C
*The initial switching threshold is 5 mA or less.