ULN2003V12, ULN2003F12 MULTI CHANNEL RELAY AND INDUCTIVE LOAD SINK DRIVER Description Pin Assignments The ULN2003V12 and ULN2003F12 are multi-channel sink drivers comprised 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 compared 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 compatible 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 common-cathode configuration at the COM pin which provides flexibility of increasing current sink capability through combining several adjacent channels in parallel. Under typical conditions the ULN2003V12 can support up to 1.0A of load current when all 7- channels are connected in parallel. Features 4- and 7-Channel High Current Sink Drivers Supports up to 20V Output Pull-up Voltage Low Output VOL of 0.6V (Typical) with 100mA (Typ.) Current Sink per Channel at 3.3V Logic Input 140mA (Typ.) Current Sink per Channel at 5.0V Logic Input Compatible to 3.3V and 5.0V Micro-Controllers and Logic Applications Interface Inputs Compatible with Popular Logic Types Internal Free-Wheeling Diodes for Inductive Kick-back Protection Relay Driver Applications Input Pull-down Resistors Allows Tri-Stating the Input Driver Stepping Motor Applications Input RC-Snubber to Eliminate Spurious Operation in Noisy Logic Level Shifter Environments ESD: 4kV HBM, 1kV CDM Available in 16-Pin SOIC, 16-Pin TSSOP and 10-Pin DFN3030 packages Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. Green Device (Note 3) For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. ULN2003V12, ULN2003F12 Functional Diagram Pin Descriptions Package Number Pin Name Description SO16 TSSOP16 DFN3030-10 1~7 1~7 1~4 Logic Input Pins IN1 through IN7 IN1 ~ IN7 8 8 5 Ground Reference Pin GND 9 9 6 Internal Free-Wheeling Diode Common Cathode Pin COM 10~16 10~16 7~10 OUT7 ~ OUT1 Channel Output Pins OUT7 through OUT1 Functional Block Diagram (Single Channel) 2 of 11 May 2021 ULN2003V12, ULN2003F12 Diodes Incorporated www.diodes.com Document number: DS37620 Rev. 3 - 2