UDN2540
UDN2540 is QUAD DARLINGTON POWER DRIVER manufactured by Allegro MicroSystems.
feature a minimum breakdown and sustaining voltage of 50 V. The logic inputs are patible with TTL and 5 V CMOS logic systems.
Typical applications include print heads, relays, solenoids, and dc stepping motors. These drivers can also be used to drive highcurrent incandescent lamps, LEDS, and heaters.
The UDN2540B is supplied in a 16-pin batwing power DIP; the A2540SLB is supplied in a 20-lead batwing power SOIC for surfacemount applications. The batwing construction provides for maximum package power dissipation in a standard construction. At 25°C, and with pcb copper foil heat dissipators at the ground tabs, either package is capable of safely dissipating more than 2 W.
NTINRUEFEEREN ABSOLUTE MAXIMUM RATINGS at TA = 25°C
O R Output Voltage, VOUT 50 V C O Output Current, IOUT (peak) 2.5 A IS F (continuous) 1.8 A
Logic Supply Voltage, VCC 7.0 V
- Input Voltage, VIN 7.0 V
FEATURES s 1.8 A Continuous Output Current s Output Voltage to 50 V s TTL and 5 V CMOS patible Inputs s Efficient Input/Output Pinning s Integral Transient-Suppression Diodes s Replaces L6221A and L6221CD
Package Power Dissipation,
PD See Graph Operating Temperature Range,
TA -20°C to +85°C
Storage Temperature Range, TS -55°C to +150°C
Always order by plete part number:
Part Number Package
UDN2540B
16-pin batwing DIP
A2540SLB
20-lead batwing SOIC
2540 QUAD DARLINGTON POWER DRIVER
A2540SLB (SOIC)
OUT4 1 K2
NO 3 NC CONNECTION
OUT3 4 GROUND 5 GROUND 6
OUT2 7 NO 8 NC
CONNECTION K9
OUT1 10
20 IN4
19 IN3
NC 18
NO CONNECTION
17 ENABLE
16 GROUND 15 GROUND
VCC 14 SUPPLY
NC 13
NO CONNECTION
12 IN 2
11 IN 1
Dwg. PP-017-3
ALLOWABLE PACKAGE POWER DISSIPATION IN...
