Darlington Driver 7 Channel Array MSKSEMI ULN2003 for Relay Stepper Motor and Inductive Load Driving
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Product Description
Product Overview
The ULN2003 is a monolithic integrated high-voltage, high-current Darlington array featuring 7 independent Darlington driver channels. Each channel includes a clamp diode for inductive load suppression, making it suitable for driving relays, stepper motors, and other inductive loads. By paralleling Darlingtons, higher output current capability can be achieved. The circuit is widely applicable in relay driving, lighting driving, display driving (LED), stepper motor driving, and as logic buffers. Each Darlington channel has a 2.7K base resistor, allowing direct connection to TTL/CMOS circuits with a 5V operating voltage.
Product Attributes
- Brand: Msksemi
- Origin: China (implied by website domain and language)
Technical Specifications
| Symbol | Parameter | Test Condition | Min | Typ | Max | Unit |
| VIN | Input Voltage | 0 | 30 | V | ||
| VCE | Output Voltage | 50 | V | |||
| IC | Collector Current | IOUT = 350mA, IIN=500A | 500 | mA | ||
| IB | Base Current | 25 | mA | |||
| TA | Operating Temperature | -40 | 85 | |||
| TS | Storage Temperature | -65 | 150 | |||
| TW | Soldering Temperature | 260 (10s) | ||||
| ICEX | Output High Leakage Current | VCE = 50V, TA=25 | 1 | 50 | A | |
| ICEX | Output High Leakage Current | VCE = 50V, TA=85 | 0 | 100 | A | |
| VCE(SAT) | Output Low Voltage | IOUT = 350mA, IIN=500A | 1.6 | V | ||
| VCE(SAT) | Output Low Voltage | IOUT = 200mA, IIN=350A | 0.9 | 1.3 | V | |
| VCE(SAT) | Output Low Voltage | IOUT = 100mA, IIN=250A | 0.8 | 1.1 | V | |
| IIN(ON) | Input Current | VIN=3.85V, IOUT =350mA | 0.7 | 1.35 | mA | |
| IIN(OFF) | Input Current | IOUT = 500A, TA=85 | 4 | 50 | 63 | A |
| VIN(ON) | Input Voltage | VCE = 2V, IOUT = 200mA | 1.8 | 2.4 | V | |
| VIN(ON) | Input Voltage | VCE = 2V, IOUT = 250mA | 1.85 | 2.7 | V | |
| VIN(ON) | Input Voltage | VCE = 2V, IOUT = 300mA | 1.9 | 3.0 | V | |
| IR | Clamp Diode Reverse Leakage Current | VR=50V, TA=25 | 0 | 50 | A | |
| IR | Clamp Diode Reverse Leakage Current | VR=50V, TA=85 | 0 | 100 | A | |
| VF | Clamp Diode Forward Voltage | IF=350mA, TA=25 | 1.7 | 2.0 | V | |
| tON | Turn-on Delay Time | VOUT=50V, RL=125, CL=15pF | 0.1 | 1 | s | |
| tOFF | Turn-off Delay Time | VOUT=50V, RL=125, CL=15pF | 0.2 | 1 | s |
Package Data
| P/N | PKG | QTY |
| ULN2003 | SOP-16 | 4000 |
| ULN2003 | DIP-16 | 1000 |
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