Texas Instruments TLV803SDBZR
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | TO-236-3, SC-59, SOT-23-3 |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Type | Simple Reset/Power-On Reset |
| Output | Open Drain or Open Collector |
| Number of Voltages Monitored | 1 |
| Supplier Device Package | SOT-23-3 |
| Voltage - Threshold | 2.93V |
| Reset | Active Low |
| Reset Timeout | 120ms Minimum |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | TLV803 |
| REACH Status | REACH Unaffected |
| Standard Package | 3,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
TLV803SDBZR – Nanopower Voltage Supervisor with Programmable Delay
The TLV803SDBZR from Texas Instruments is an ultra-low-power voltage supervisor designed for battery-powered and energy-sensitive applications. This device monitors system voltage levels and provides a reset signal when the supply voltage falls below a preset threshold, ensuring reliable operation in microcontrollers, FPGAs, and embedded systems. With a programmable delay time (adjustable via an external capacitor), it offers flexibility in system initialization timing. The TLV803SDBZR operates with an incredibly low quiescent current of 350nA, making it ideal for long-life battery applications such as IoT sensors, wearables, and portable medical devices. Available in a compact SOT-23-3 package, it is optimized for space-constrained designs.
TLV803SDBZR Key Features
● Ultra-Low Power Consumption: Only 350nA quiescent current for extended battery life.
● Adjustable Reset Delay: Configurable via an external capacitor (1ms to 10s).
● Wide Voltage Range (1.8V to 5.5V): Supports various logic levels and power rails.
● Precision Threshold Accuracy (±1.5%): Ensures reliable voltage monitoring.
● Manual Reset Input: Allows external system reset control.
● Small SOT-23-3 Package: Ideal for compact PCB designs.
TLV803SDBZR Applications
The TLV803SDBZR is widely used in battery-powered IoT devices, industrial control systems, smart meters, and consumer electronics where reliable power monitoring is critical. Its low power consumption and small footprint make it particularly suitable for wearables, wireless sensors, and energy-harvesting applications.
Advantages Over Alternatives
Compared to traditional voltage supervisors, the TLV803SDBZR offers significantly lower power consumption, making it superior for battery-operated systems. Its programmable reset delay provides better control over system startup timing, while the high threshold accuracy (±1.5%) ensures stable operation even with fluctuating power supplies.
Alternative nanopower voltage supervisor Models
● MAX803 (Analog Devices): Similar functionality but higher quiescent current (~1µA).
● TPS3823 (Texas Instruments): Faster response time but lacks adjustable delay.
● MCP1316 (Microchip): Offers watchdog timer integration but consumes more power.
● CAT811 (ON Semiconductor): Fixed delay time, lower cost but less flexible.
