ST L2293Q User Manual
Push-pull four channel driver with diodes
Features
■ 600 mA output current capability per channel
■ 1.2 A peak output current (non repetitive) per
channel
■ Enable facility
■ Overtemperature protection
■ Logical “0” input voltage up to 1.5 V (high noise
immunity)
■ Internal clamp diodes
Description
The device is a monolithic integrated high voltage,
high current four channel driver designed to
accept standard DTL or TTL logic levels and drive
inductive loads (such as relays solenoides, DC
and stepping motors) and switching power
transistors.
L2293Q
VFQFPN 5 mm x 5 mm 32L
To simplify use as two bridges each pair of
channels is equipped with an enable input. A
separate supply input is provided for the logic,
allowing operation at a lower voltage and internal
clamp diodes are included.
This device is suitable for use in switching
applications at frequencies up to 50 kHz.
The L2293Q is assembled in a VFQFPN-32L 5x5
package which has exposed pad available for
heatsinking.
Figure 1. Block diagram
August 2009 Doc ID 14899 Rev 3 1/13
www.st.com
13
Contents L2293Q
Contents
1 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Recommended conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2/13 Doc ID 14899 Rev 3
L2293Q Electrical data
1 Electrical data
1.1 Absolute maximum ratings
Table 1. Absolute maximum ratings
Symbol Parameter Value Unit
V
V
V
P
T
Supply voltage 36 V
S
Logic supply voltage 36 V
SS
V
Input voltage 7 V
i
Enable voltage 7 V
en
Peak output current (100 μs non repetitive) 1.2 A
I
o
Total power dissipation at T
tot
Junction temperature 150 °C
T
J
Storage temperature – 40 to 150 °C
STG
pins
1.2 Recommended conditions
Table 2. Recommended conditions
Symbol Parameter
V
V
T
1. See Figure 2
Supply voltage V
S
Logic supply voltage 2.8
SS
Junction temperature -20
J
= 90 °C 4 W
Value
Unit
Min Typ Max
SS
(1)
(1)
36 V
36 V
125 °C
Doc ID 14899 Rev 3 3/13
Electrical data L2293Q
1.3 Thermal data
Figure 2. Typical minimum logic supply voltage vs junction temperature
V
SS_min
[V]
2.8
2.7
T
j
0-10-20
Table 3. Thermal data
Symbol Parameter Value Unit
R
th(JA)
1. Mounted on a double-layer FR4 PCB with a dissipating copper surface of 0.5 cm2 on the top side plus
6 cm2 ground layer connected through 18 via holes (9 below the IC).
Thermal resistance junction-ambient max.
(1)
[°C]
42 °C/W
4/13 Doc ID 14899 Rev 3
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