2543 Datasheet, PDF (1/8 Pages) Allegro MicroSystems – PROTECTED QUAD POWER DRIVER

2543
UDN/UDQ2543B
OUT₄ 1
K2
OUT₃ ³
GROUND ⁴
GROUND 5
OUT₂ 6
K7
OUT₁ 8
16 IN₄
15 IN₃
14 ENABLE
13 GROUND
12 GROUND
11 V _CC
10 IN ₂
9 IN ₁
Dwg. PP-017-1
ABSOLUTE MAXIMUM RATINGS
at T_A = 25°C
Output Voltage, V_OUT . . . . . . . . . . . . . 60 V
Over-Current Protected Output Voltage,
V_OUT . . . . . . . . . . . . . . . . . . . . . . . 25 V
Output Current, I_OUT . . . . . . . . . . . . . 1.0 A*
Supply Voltage, V_CC . . . . . . . . . . . . . . 7.0 V
Input Voltage, V_IN or V_EN . . . . . . . . . . 18 V
Package Power Dissipation,
P_D . . . . . . . . . . . . . . . . . . . . See Graph
Operating Temperature Range, T_A
(UDN2543B/EB) . . . . -20°C to +85°C
(UDQ2543B/EB) . . . . -40°C to +85°C
Storage Temperature Range,
T_S . . . . . . . . . . . . . . . -55°C to +150°C
*Outputs are peak current limited at approxi-
mately 1.0 A per driver. See Circuit Description
and Applications for further information.
PROTECTED
QUAD POWER DRIVER
Providing interface between low-level logic and power loads to
100 W, the UDx2543B and UDx2543EB quad power drivers combine
AND logic gates and high-current bipolar outputs. Each of the four
independent outputs can sink up to 700 mA in the ON state. The
outputs have a minimum breakdown voltage (load dump) of 60 V and
a sustaining voltage of 35 V. The inputs are compatible with most
TTL, DTL, LSTTL, and 5 V CMOS and PMOS logic systems.
Over-current protection has been designed into each channel of
the UDx2543B/EB and typically occurs at 1 A. It protects any one
channel from output short circuits with supply voltages up to 25 V.
When the maximum output current is reached, that output stage is
driven linearly. If the over-current condition continues, that output’s
thermal limiting will operate, limiting that output’s power dissipation to
approximately 2.4 W. The outputs also include diodes for voltage
clamping with inductive loads such as relays, solenoids, or dc stepper
motors.
These devices are supplied in a 16-pin power DIP of batwing
construction (suffix ‘B’) to provide for maximum package power dissi-
pation. They are also available in a 28-lead PLCC (suffix ‘EB’) for
surface-mount applications. All devices are rated for continuous
operation over the temperature range of -20°C to +85°C (UDN2543B/
EB) or for use in automotive applications over an extended tempera-
ture range as the UDQ2543B/EB.
FEATURES
I 700 mA Output Current per Channel
I Low Output-Saturation Voltage
I Integral Output Transient-Suppression Diodes
I TTL, CMOS, PMOS, NMOS Compatible Inputs
I Independent Over-Current Protection for Each Output
Always order by complete part number:
Part Number
Package
Operating Temperature
UDN2543B
16-Pin DIP
-20°C to +85°C
UDN2543EB
28-Lead PLCC -20°C to +85°C
UDQ2543B
16-Pin DIP
-40°C to +85°C
UDQ2543EB
28-Lead PLCC -40°C to +85°C