Overview
The TLVH431BQPK is a low-voltage, adjustable precision shunt regulator produced by Texas Instruments. It is designed to offer excellent temperature stability and high output current handling capabilities. This device is a variant of the TLV431 series, optimized for a wide range of applications including industrial, automotive, and telecommunications. The TLVH431BQPK operates with a reference voltage of 1.24V and can be adjusted to output voltages from 1.24V to 18V, making it versatile for various voltage regulation needs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Reference Voltage (VREF) | 1.24 | V |
| Reference Voltage Tolerance at 25°C | 0.5% | - |
| Adjustable Output Voltage Range | 1.24V to 18V | V |
| Minimum Cathode Current (IK(min)) | 80µA | A |
| Maximum Cathode Current (IK(max)) | 20mA | A |
| Typical Output Impedance | 0.25Ω | Ω |
| Operating Temperature Range | -40°C to 125°C | °C |
| Storage Temperature Range | -65°C to 150°C | °C |
| Package Type | SOT-89 (PK) | - |
Key Features
- Low-voltage operation with a reference voltage of 1.24V.
- Adjustable output voltage from 1.24V to 18V using external resistors.
- High temperature stability with typical temperature drifts of 4mV (0°C to 70°C), 6mV (-40°C to 85°C), and 11mV (-40°C to 125°C).
- Low operational cathode current of 80µA typical.
- Low output impedance of 0.25Ω typical.
- AEC-Q100 qualified for automotive applications with a temperature grade 1 rating (-40°C to 125°C).
- Lead-free finish; RoHS compliant, halogen and antimony free.
Applications
- Isolated low-output voltage power supplies.
- Improving the accuracy and/or extending the range and flexibility of fixed-voltage regulators.
- Voltage regulation in industrial, automotive, and telecommunications equipment.
- On-board regulation and adjustable power supplies.
- Isolated feedback circuits for 3V to 3.3V switching-mode power supplies when used with an optocoupler.
Q & A
- What is the reference voltage of the TLVH431BQPK?
The reference voltage of the TLVH431BQPK is 1.24V.
- What is the adjustable output voltage range of the TLVH431BQPK?
The adjustable output voltage range is from 1.24V to 18V.
- What is the minimum cathode current required for the TLVH431BQPK to operate?
The minimum cathode current required is 80µA.
- What is the typical output impedance of the TLVH431BQPK?
The typical output impedance is 0.25Ω.
- What is the operating temperature range of the TLVH431BQPK?
The operating temperature range is -40°C to 125°C.
- Is the TLVH431BQPK AEC-Q100 qualified?
- What package type does the TLVH431BQPK come in?
The TLVH431BQPK comes in an SOT-89 (PK) package).
- What are some common applications of the TLVH431BQPK?
- Is the TLVH431BQPK RoHS compliant?
- Can the TLVH431BQPK be used in isolated feedback circuits?
