TLVH431B Overview
The TLVH431 and TLVH432 devices are lowvoltage 3-terminal adjustable voltage references, with specified thermal stability over applicable industrial and mercial temperature ranges. Output voltage can be set to any value between VREF (1.24V) and 18V with two external resistors (see Figure 6-2). These devices operate from a lower voltage (1.24V) than the widely used TL431 and TL1431 shunt-regulator references.
TLVH431B Key Features
- Low-voltage operation: down to 1.24V
- Reference voltage tolerances at 25°C
- 0.5% for B grade
- 1% for A grade
- 1.5% for standard grade
- Adjustable output voltage, VO = VREF to 18V
- Wide operating cathode current range: 100μA to 70mA
- 0.25Ω typical output impedance
- 40°C to +125°C specifications
- TLVH432 provides alternative pinouts for SOT-23-3 and SOT-89 packages
TLVH431B Applications
- Adjustable voltage reference for data Converters
- Secondary side regulation in flyback SMPSs
- Zener replacement with low leakage current
- Voltage monitoring for power rails
- parator with integrated reference
