• Part: ULN2003F12
  • Description: Multi-Channel Relay and Inductive Load Sink Driver
  • Manufacturer: Diodes Incorporated
  • Size: 426.91 KB
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ULN2003F12 Datasheet Text

ULN2003V12, ULN2003F12 Multi-Channel Relay and Inductive Load Sink Driver Description The ULN2003V12 and ULN2003F12 are multi-channel sink drivers prised of 7-channel and 4-channel output stages respectively. The ULN2003V12 sink driver Features 7 low output impedance drivers that minimize on-chip power dissipation and an actual low power upgrade version for popular ULN2003A family in real applications. When driving a typical 12V relay coil, a ULN2003V12 will dissipate 12 times lower power pared to ULN2003A. ULN2003F12 is a lower power variant benefiting from fewer channel integration and a better fit for applications requiring only 4-channel drivers, such as driving low voltage stepping motors, etc. The ULN2003V12 and ULN2003F12 both support 3.3V to 5V CMOS logic input interface, thus making it patible to a wide range of micro-controllers and other logic interfaces, and also feature an improved input interface that minimizes the input DC current drawn from the external drivers. The input RC snubber circuit integrated at ULN2003V12 and ULN2003F12 improves the performance in noisy operating conditions, and the internal pull-down resistor at input stage helps allow input logic to be tri-stated. As shown in the Functional Diagram, each output of the ULN2003V12 and ULN2003F12 Features an internal free-wheeling diode connected in a mon-cathode configuration at the pin which provides flexibility of increasing current sink capability through bining several adjacent channels in parallel. Under typical conditions the ULN2003V12 can support up to 1.0A of load current when all 7channels are connected in parallel. Pin Assignments ( Top View ) IN1 1 IN2 2 IN3 3 IN4 4 IN5 5 IN6 6 IN7 7 GND 8 16 OUT1 15 OUT2 14 OUT3 13 OUT4 12 OUT5 11 OUT6 10 OUT7 9 SO-16...