My Inquiry
My Account
Diodes Incorporated ULN2003V12S16-13
- Part No.:
- ULN2003V12S16-13
- Manufacturer:
- Diodes Incorporated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ULN2003V12S16-13.pdf
- Description:
- IC PWR RELAY N-CHAN 1:1 16SO
- Quantity:
- Payment:
- Shipping:
Inventory:11,984
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ULN2003V12S16-13 from Diodes Incorporated is a 7-channel high-current NPN Darlington sink driver IC designed for interfacing microcontrollers with inductive loads such as relays, solenoids, and stepper motors. It supports 3.3V/5V logic inputs, delivers up to 140mA per channel at 5V input, features integrated freewheeling diodes, and achieves 0.6V typical VOL at 140mA sink current - enabling efficient 12V relay driving with 12× lower power dissipation than ULN2003A.
For engineers reviewing the ULN2003V12S16-13 datasheet, ULN2003V12S16-13 pinout, ULN2003V12S16-13 application, or ULN2003V12S16-13 equivalent, key selection considerations include per-channel sink current capability (100mA @ 3.3V / 140mA @ 5V), COM-pin common-cathode diode configuration for inductive kickback protection, input RC snubber for noise immunity, and SOIC-16 package thermal performance (θJA = 97°C/W).
Technical Context
The ULN2003V12S16-13 integrates seven independent Darlington transistor pairs with base resistors, input pull-downs (210–390kΩ), and an RC snubber network per input to suppress EMI-induced false triggering. Each output stage includes a built-in freewheeling diode connected cathode-to-COM, allowing parallel channel operation to achieve up to 1.0A total sink current.
It operates with logic-compatible input thresholds (VI(on) = 1.65V min, VI(off) = 0.6V max) and delivers low saturation voltage (VOL = 0.6V typ at 140mA), supporting reliable switching of 12V inductive loads while maintaining compatibility with modern low-voltage MCUs and reducing external component count.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VOUT Max | 20V - Enables direct interface with 12V relay coils and other industrial-level inductive loads without external clamping. |
| IOUT per Channel | 140mA @ 5V input - Sustains full-rated current per channel under standard MCU logic drive conditions. |
| VOL (Saturation) | 0.6V typical @ 140mA - Minimizes power loss (PLOSS ≈ 84mW/channel) and thermal stress during continuous conduction. |
| Input VI(on) | 1.65V min - Ensures robust recognition of 3.3V logic HIGH across temperature and process variation. |
| θJA | 97°C/W (SOIC-16) - Defines thermal derating limit: max 412mW power dissipation at TA = +85°C. |
| ESD Rating | 4kV HBM - Provides baseline handling robustness for board assembly and field operation in non-automotive environments. |
| tPHL/tPLH | 50/121ns typical - Supports fast-switching applications like microstepping motor control with predictable timing margins. |
Pinout & Package
ULN2003V12S16-13 is housed in a 16-pin SOIC (Small Outline Integrated Circuit) package with 1.27mm pitch, 10.0mm × 6.1mm body size, and matte tin-plated leads compliant with MIL-STD-202 solderability requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN1–IN7 (Pins 1–7) | Logic Input | CMOS-compatible inputs with internal pull-down (210–390kΩ) and RC snubber; accept 3.3V/5V logic levels and support tri-state operation. |
| GND (Pin 8) | Ground Reference | Common emitter reference for all Darlington pairs; rated for up to 1.0A continuous current below +100°C junction temperature. |
| COM (Pin 9) | Freewheeling Diode Cathode | Common cathode node for all seven internal flyback diodes; connects externally to load supply rail (e.g., +12V) to clamp inductive kickback. |
| OUT7–OUT1 (Pins 10–16) | Sink Output | Open-collector NPN Darlington outputs; each sinks current from load to GND when corresponding INx is HIGH. |
Key Features
| Feature | Design Value |
|---|---|
| 7-channel Darlington sink architecture | Enables single-package control of multi-coil relays or unipolar stepper motor phases without external transistors. |
| Integrated freewheeling diodes (common-cathode) | Eliminates need for 7 discrete external diodes; COM pin simplifies PCB layout and ensures consistent clamping behavior. |
| Input RC snubber + pull-down resistor | Suppresses false triggering in electrically noisy environments (e.g., industrial PLC cabinets) and allows safe floating of unused inputs. |
| Low VOL (0.6V @ 140mA) | Reduces channel power dissipation by >50% vs. legacy ULN2003A, enabling higher duty-cycle operation in space-constrained designs. |
| 3.3V/5V logic compatibility | Direct interface with ARM Cortex-M, ESP32, PIC, and other modern MCUs without level-shifting circuitry. |
Applications
| Industrial Relay Control | Unipolar Stepper Motor Driver |
|---|---|
|
Use Scenario: Driving 12V DC electromagnetic relays in programmable logic controllers (PLCs) and industrial I/O modules. IC Role / Device Role / Timing Role: High-side load switch controller that sinks relay coil current to ground, with COM pin tied to +12V for flyback energy recirculation. Use Value: Eliminates 7 external flyback diodes and reduces board area by ~25mm² versus discrete transistor+diode solutions. |
Use Scenario: Controlling phase windings of 5V/12V unipolar stepper motors in CNC positioning stages and 3D printer extruders. IC Role / Device Role / Timing Role: Current-sinking driver for each motor phase; sequenced via MCU GPIO to generate precise step pulses with controlled rise/fall times (tPHL/tPLH ≤ 140ns). Use Value: Enables microstepping resolution up to 1/8-step using PWM-modulated enable signals, leveraging low VOL for minimal torque ripple. |
| Automated Test Equipment (ATE) | Legacy Logic Interface Adapter |
|
Use Scenario: Actuating solenoid valves and pneumatic actuators in semiconductor wafer probers and functional test handlers. IC Role / Device Role / Timing Role: Load interface between FPGA I/O banks and 24V industrial actuators; GND pin handles up to 1.0A aggregate current. Use Value: Achieves <100ns channel-to-channel skew (max 50ns), ensuring synchronized actuation across multiple solenoids in time-critical test sequences. |
Use Scenario: Bridging TTL/CMOS logic outputs to legacy 12V lamp indicators, buzzer drivers, and LED arrays in retro instrumentation panels. IC Role / Device Role / Timing Role: Level-shifting sink buffer that converts 3.3V logic HIGH into 12V load current path via open-collector output and external pull-up. Use Value: Maintains signal integrity over long traces (>30cm) due to input RC filtering, preventing spurious activation from EMI coupling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-channel sink driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ULN2003A (SO-16) | Higher VOL (1.0V @ 100mA), no input RC snubber, no pull-down resistors, 7× higher power dissipation at 12V relay drive. | Limited to low-noise, low-duty-cycle relay use; unsuitable for dense PCB layouts or thermally constrained enclosures. | Select only if legacy design reuse is required and thermal headroom exceeds 2.5× that needed for ULN2003V12S16-13. |
| TB6570AFG (TSSOP-20) | Integrated current regulation, 500mA per channel, SPI interface, thermal shutdown, but requires external flyback diodes and 5V supply. | Targeted at precision stepper motor control with closed-loop current feedback; not drop-in compatible due to different pinout and protocol. | Choose when per-phase current limiting and fault reporting are mandatory, and board space allows additional passive components. |
Compared with ULN2003A, ULN2003V12S16-13 delivers 12× lower power dissipation and noise-immune inputs; compared with TB6570AFG, it offers simpler integration for basic on/off control but lacks programmable current regulation and diagnostics.
Availability
ULN2003V12S16-13 is available at Aetrix Electronics and suitable for industrial automation, motion control, and test equipment requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for ULN2003V12S16-13 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and interface solutions for industrial, computing, and consumer markets.
The ULN2003V12 product line targets cost-sensitive, high-volume applications demanding robust inductive load switching with minimal external components - emphasizing thermal efficiency, noise immunity, and logic-level compatibility.
FAQ
Can ULN2003V12S16-13 drive 24V relays?
No - its absolute maximum VOUT rating is 20V. Driving a 24V relay risks permanent damage to the output transistors during turn-off due to inductive voltage spikes exceeding this limit. For 24V systems, use a TVS diode clamped to ≤20V at the COM pin or select a driver rated for ≥30V, such as the STMicroelectronics ULN2803A.
What is the maximum continuous current when paralleling all 7 channels?
When all seven OUT pins are wired in parallel with shared COM and GND connections, the device supports up to 1.0A total sink current at TJ < +100°C, as confirmed in the datasheet's "Functional Diagram" section and Absolute Maximum Ratings table under "Max GND-Pin Continuous Current." Derating applies above +100°C.
Does the COM pin require an external capacitor?
No external capacitor is required at the COM pin. The internal freewheeling diodes provide sufficient energy recirculation for typical relay and solenoid loads. However, a 100nF ceramic capacitor placed between COM and GND near the IC improves high-frequency noise suppression during simultaneous multi-channel switching events.
Is ULN2003V12S16-13 qualified for automotive applications?
No - it is not AEC-Q100 qualified and lacks PPAP documentation or IATF 16949 manufacturing certification. Diodes Incorporated explicitly states in the datasheet that automotive-grade variants require direct consultation; this part is intended for industrial and commercial applications only.
ULN2003V12S16-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Series:
- ULx200xA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- Relay, Solenoid Driver
- Number of Outputs:
- 7
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- Low Side
- Output Type:
- Darlington
- Interface:
- Parallel
- Voltage - Load:
- 20V (Max)
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 700mA
- Rds On (Typ):
- -
- Input Type:
- Inverting
- Features:
- -
- Fault Protection:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
ULN2003V12S16-13 FAQ
1.How can I place an order for ULN2003V12S16-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for ULN2003V12S16-13 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ULN2003V12S16-13 reliable?
The price and inventory of ULN2003V12S16-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ULN2003V12S16-13 is usually 5 days.
3.What payment methods are accepted for ULN2003V12S16-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ULN2003V12S16-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ULN2003V12S16-13?
ULN2003V12S16-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ULN2003V12S16-13 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ULN2003V12S16-13?
For technical support, including ULN2003V12S16-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ULN2003V12S16-13 requirements.
6.How does Aetrix verify that ULN2003V12S16-13 is sourced from the original manufacturer or authorized distributors?
All ULN2003V12S16-13 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ULN2003V12S16-13 meets industry standards.
7.What is the process for return or replacement of ULN2003V12S16-13?
All ULN2003V12S16-13 units undergo pre-shipment inspection (PSI). If there is an issue with ULN2003V12S16-13, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ULN2003V12S16-13 part is unused and in its original packaging.
Return procedure for ULN2003V12S16-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ULN2003V12S16-13 Tags
-
TPS22919DCKR
Texas Instruments
-
MIC2091-1YM5-TR
Microchip Technology
-
MIC2090-1YM5-TR
Microchip Technology
-
TPS22995RZFR
Texas Instruments
-
TPS22975DSGR
Texas Instruments
-
SIP32510DT-T1-GE3
Vishay Siliconix
-
ULN2003D1013TR
STMicroelectronics
-
MIC2005A-1YM5-TR
Microchip Technology
-
MIC2005A-1YM6-TR
Microchip Technology
-
TPS22916BYFPR
Texas Instruments
-
TPS22917DBVR
Texas Instruments
-
ULN2003APWR
Texas Instruments
Tech Hub
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
