Overview
The SN75468NSRG4, produced by Texas Instruments, is a high-voltage, high-current Darlington transistor array. This device consists of seven NPN Darlington pairs, each capable of handling up to 500 mA of collector current. It is designed to operate with various types of logic, including TTL and CMOS, and is particularly useful for driving high-voltage and high-current peripherals from microcontrollers or logic devices that cannot handle such conditions. The SN75468NSRG4 features common-cathode clamp diodes for switching inductive loads, making it versatile across a wide range of applications.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Collector-Current Rating (Single Output) | - | - | - | 500 | mA |
| High-Voltage Output | - | - | - | 100 | V |
| On-state Input Voltage (VI(on)) | VCE = 2 V, IC = 250 mA | 2.4 | 2.7 | - | V |
| Collector-Emitter Saturation Voltage (VCE(sat)) | IC = 100 mA, II = 250 µA | 0.9 | 1.1 | - | V |
| Operating Temperature Range | - | -40 | - | 105 | °C |
| Package Type | - | - | - | SO (Small Outline) | - |
| Pins | - | - | - | 16 | - |
Key Features
- High-voltage output up to 100 V
- High-current capability with 500 mA rated collector current per output
- Common-cathode clamp diodes for switching inductive loads
- Inputs compatible with TTL and 5-V CMOS logic
- Series base resistor (2700 Ω) for direct operation with TTL or CMOS
- High current gain (β2) due to Darlington configuration
- Ability to drive high voltage and/or current peripherals from microcontrollers or logic devices
- Operating temperature range from –40°C to 105°C
Applications
- Relay drivers
- Hammer drivers
- Lamp drivers (LED and gas discharge)
- Display drivers (LED and gas discharge)
- Line drivers
- Logic buffers
- Driving solenoids, motors, and small inductive loads
Q & A
- What is the maximum collector current rating per output of the SN75468NSRG4?
The maximum collector current rating per output is 500 mA.
- What is the high-voltage output capability of the SN75468NSRG4?
The high-voltage output capability is up to 100 V.
- What type of logic is the SN75468NSRG4 compatible with?
The SN75468NSRG4 is compatible with TTL and 5-V CMOS logic.
- What is the purpose of the common-cathode clamp diodes in the SN75468NSRG4?
The common-cathode clamp diodes are used for switching inductive loads and to suppress kick-back voltage.
- What is the operating temperature range of the SN75468NSRG4?
The operating temperature range is from –40°C to 105°C.
- Can the outputs of the SN75468NSRG4 be paralleled for higher current capability?
- What types of loads can the SN75468NSRG4 drive?
The SN75468NSRG4 can drive inductive loads, resistive loads, relays, solenoids, lamps, and small motors.
- What is the package type of the SN75468NSRG4?
The package type is SO (Small Outline) with 16 pins.
- Is the SN75468NSRG4 RoHS compliant?
- What is the typical on-state input voltage (VI(on)) for the SN75468NSRG4?
The typical on-state input voltage (VI(on)) is around 2.7 V when VCE = 2 V and IC = 250 mA.
