STMICROELECTRONICS L702

L702
2A QUAD DARLINGTON SWITCH
SUSTAINING VOLTAGE: 70 V
2 A OUTPUT
HIGH CURRENT GAIN
IDEAL FOR DRI VING SOLENOIDS, DC
MOTORS, STEPPER MOTORS, RELAYS,
DISPLAYS, ETC.
Multiwatt-11
DESCRIPTION
The L702 is a monolithic integrated circuit for high
current and high voltage switching applications. It
comprises four darlington transistors with common
emitter and open collector suitable for current sinking applications mounted on the new POWERDIP
and Multiwatt® packages.
This circuit reduces components, sizes and costs;
it can provide direct interface between low level
logic and a variety of high current applications.
Powerdip 8 + 8
ORDER CODES : L702B - Powerdip
L702N - Multiwatt
ABSOLUTE MAXIMUM RATINGS
Symbol
Value
Unit
Collector-emitter Voltage (input open)
90
V
Vi
Input Voltage
30
V
IC
Collector Current
3
A
4
W
1.1
W
VCEX
Ptot
Parameter
Total Power Dissipation at Tpin 9 to 16 ≤ 90 °C
Total Power Dissipation at Tamb ≤ 70 °C
Total Power Dissipationa t Tcase ≤ 90 °C
Tstg
Tj
}
Powerdip
Multiwatt
20 W
Storage Temperature
-55 to 150
°C
Operating Junction Temperature
-25 to 150
°C
October 1991
1/7
L702
STEPPING MOTOR BUFFER
CONNECTION DIAGRAMS (top view)
Powerdip
SCHEMATIC DIAGRAM (each Darlington)
2/7
Multiwatt
L702
THERMAL DATA
Symbol
Rth j-amb
Rth j-pins 9/16
Rth j-case
Parameter
}
Thermal Resistance Junction Ambient
Powerdip
Thermal Resistance Junction Pins 9 to 16
Thermal Resistance Junction-case
Multiwatt
Value
Unit
Max
70
°C/W
Max
14
°C/W
Max
3
°C/W
ELECTRICAL CHARACTERISTICS (Tcase = 25°C unless otherwise specified)
Symbol
ICEX
Parameter
Test conditions
Output Leakage Current
VCE = 90 V
VCE(sust)
Collector Emitter (°) Sustaining
Voltage
IC = 100 mA
VCE(sat)
Collector Emitter Saturation
Voltage
IC = 1.25 A
Ii = 2 mA
DC Forward Current Gain
IC = 1 A
VCE = 3 V
Ii
Input Current
Vi = 3.75 V
Vi = 2.4 V
Open Collector
Vi
Input Voltage
hFE
Min.
Typ.
Max.
Unit
10
50
µA
70
V
1.3
1.000
VCE = 70 V
IC ≤ 0.1 mA
On Condition
VCE = 3 V
IC ≥ 1 A
V
11
6
mA
mA
0.4
V
4.000
7
3
Off Condition
1.9
2.4
V
Ton
Turn On Time
Vs = 12 V
0.3
µs
Toff
Turn Off Time
RL = 10 Ω
1
µs
Figure 1. Switching Time.
Figure 2. ton and toff Test Circuit.
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L702
Figure 3. Peak Collector Current
vs. Duty Cycle and Number of
Outputs (L702B only)
Fi g ure 4 . C ol l ector Emi tter
Saturation Voltage vs. Collector
Current.
Figure 5. Collector Current vs.
Input Voltage.
Figure 6. Input Current vs. Input
Voltage.
Figure 7. Safe Operating Areas
(L702B).
Figure 8. Safe Operating Areas
(L702N).
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L702
MULTIWATT11 PACKAGE MECHANICAL DATA
mm
DIM.
MIN.
TYP.
inch
MAX.
MIN.
TYP.
MAX.
A
5
0.197
B
2.65
0.104
C
1.6
D
0.063
1
0.039
E
0.49
0.55
0.019
F
0.88
0.95
0.035
0.022
G
1.57
1.7
1.83
0.062
0.067
0.072
G1
16.87
17
17.13
0.664
0.669
0.674
H1
19.6
0.037
0.772
H2
20.2
0.795
L
21.5
22.3
0.846
0.878
L1
21.4
22.2
0.843
0.874
L2
17.4
18.1
0.685
L3
17.25
17.5
17.75
0.679
0.689
0.699
0.713
L4
10.3
10.7
10.9
0.406
0.421
0.429
L7
2.65
2.9
0.104
M
4.1
4.3
4.5
0.161
0.169
0.177
M1
4.88
5.08
5.3
0.192
0.200
0.209
0.114
S
1.9
2.6
0.075
0.102
S1
1.9
2.6
0.075
0.102
Dia1
3.65
3.85
0.144
0.152
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L702
POWERDIP PACKAGE MECHANICAL DATA
mm
DIM.
MIN.
a1
0.51
B
0.85
b
b1
TYP.
MAX.
MIN.
TYP.
MAX.
0.020
1.40
0.033
0.50
0.38
0.055
0.020
0.50
D
0.015
0.020
20.0
0.787
E
8.80
0.346
e
2.54
0.100
e3
17.78
0.700
F
7.10
0.280
I
5.10
0.201
L
Z
6/7
inch
3.30
0.130
1.27
0.050
L702
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectronics.
© 1994 SGS-THOMSON Microelectronics - All Rights Reserved
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