UC3702 Unitrode, UC3702 Datasheet - Page 2

• Manufacturer Part Number: UC3702
• Description: Quad PWM Relay Driver
• Manufacturer: Unitrode

ABSOLUTE MAXIMUM RATINGS
Currents are positive into, negative out of the specified termi-
nal. Consult Packaging Section of Databook for thermal limita-
tions and considerations of packages.
VBUS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +50V
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +9V
Input Voltage . . . . . . . . . . . . . . . . . . . . . . –0.3V to VCC + 0.3V
Average Current per Relay. . . . . . . . . . . . . . . . . . . . . . . . 50mA
Total Output Capacitance. . . . . . . . . . . . . . . . . . . . . . . . . 25pF
Storage Temperature . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . . –55°C to +150°C
Lead Temperature (Soldering, 10 sec.) . . . . . . . . . . . . . +300°C
ELECTRICAL CHARACTERISTICS:
UC1702; –25°C to +85°C for UC2702; 0°C to +70°C for UC3702; VBUS = 34V, VCC = 5V, RESET = VCC, R2 = 43.2k ;
R1 = 203k ; CT = 220pF, T
Note 1: Programmed Average Voltage =
Supply Voltage Section
Oscillator Section
Output Driver VBUS = 20V
Control Inputs (INA, INB, INC, IND)
RESET
VCC
VCC Supply Current
VBUS
NOMINAL Operating Frequency
R1
R2
CT
Rated Relay Current
Short Circuit Current
Diode Leakage Current
Diode Forward Voltage
Averaged Output Voltage Error
Logic Low
Logic High
TON / TOFF Delay
Input Current
Input Current
TON / TOFF Delay
Input Current
Input Current
PARAMETER
A
= T
J
.
1 06
.
•
2
Unless otherwise stated these specifications apply for T
R VCC
RESET, INA, INB, INC, IND = VCC
R1 = 203k , R2 = 43.2k , CT = 220pF
Control Input Low, V
UC2702, UC3702 (Note 1)
UC1702
V
V
V
•
R
1
IN
IN
IN
•
2
= 5V
= 0.3V
= 5V
–
400
mV
TEST CONDITIONS
2
CONNECTION DIAGRAM
OUTX
DIL-16, SOIC-16 (Top View)
J or N, D Package
= VBUS
MIN
150
100
100
100
–10
–20
–10
4.5
20
–1
–8
3
A
= –55°C to +125°C for
TYP
42.5
0.05
175
202
175
500
70
–5
5
4
0
0
MAX UNITS
VCC
42.5
200
500
250
120
0.5
80
50
10
20
10
8
6
5
1
2
UC1702
UC2702
UC3702
kHz
mA
mA
mA
mV
k
k
pF
ns
%
%
V
V
V
V
A
A
A
A
A
s