Overview
The ULN2004AINSE4, produced by Texas Instruments, is a high-voltage, high-current Darlington transistor array. This device consists of seven NPN Darlington pairs, each featuring high-voltage outputs with common-cathode clamp diodes. These diodes are integral for switching inductive loads, making the ULN2004AINSE4 versatile for various applications. The device is designed to operate directly with CMOS devices using supply voltages from 6V to 15V, thanks to its 10.5kΩ series base resistor.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Collector Current (single output) | 500 mA | mA |
| Peak Collector Current | 600 mA | mA |
| Output Voltage | 50 V | V |
| Input Current (ON) | 0.35 - 1.45 mA | mA |
| Input Current (OFF) | 50 - 65 μA | μA |
| Input Voltage (ON) | 4.4 - 6 V | V |
| Collector-Emitter Saturation Voltage | 0.9 - 1.6 V | V |
| Turn-On Delay Time | 0.25 - 1 μs | μs |
| Turn-Off Delay Time | 0.25 - 1 μs | μs |
| Clamp Diode Forward Voltage | 1.7 - 2 V | V |
| Operating Temperature Range | -20 to 70 °C | °C |
| Package Types | DIP-16, SO-16 |
Key Features
- Seven NPN Darlington pairs with high-voltage outputs up to 50V
- Integral clamp diodes for switching inductive loads
- Inputs compatible with various types of logic (TTL, CMOS, PMOS, DTL)
- 10.5kΩ series base resistor for operation directly from CMOS devices with supply voltages of 6V to 15V
- Collector-current rating of 500mA per Darlington pair, with the ability to parallel for higher current capability
- Low input current requirements
Applications
- Relay drivers
- Hammer drivers
- Lamp drivers
- Display drivers (LED and gas discharge)
- Line drivers
- Logic buffers
- Solenoids and DC motors
- Thermal printheads and high-power buffers
Q & A
- What is the maximum collector current per Darlington pair in the ULN2004AINSE4?
The maximum collector current per Darlington pair is 500mA, with a peak current of 600mA.
- What is the maximum output voltage of the ULN2004AINSE4?
The maximum output voltage is 50V.
- What types of logic are the inputs of the ULN2004AINSE4 compatible with?
The inputs are compatible with TTL, CMOS, PMOS, and DTL logic.
- What is the purpose of the integral clamp diodes in the ULN2004AINSE4?
The integral clamp diodes are for switching inductive loads.
- What is the operating temperature range of the ULN2004AINSE4?
The operating temperature range is -20 to 70 °C.
- Can the Darlington pairs in the ULN2004AINSE4 be paralleled for higher current capability?
Yes, the Darlington pairs can be paralleled for higher current capability.
- What are the typical package types for the ULN2004AINSE4?
The typical package types are DIP-16 and SO-16.
- What is the series base resistor value in the ULN2004AINSE4?
The series base resistor value is 10.5kΩ.
- What are some common applications of the ULN2004AINSE4?
Common applications include relay drivers, hammer drivers, lamp drivers, display drivers, line drivers, and logic buffers.
- How do the turn-on and turn-off delay times of the ULN2004AINSE4 compare?
The turn-on and turn-off delay times are both in the range of 0.25 to 1 μs.
