Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Type | Simple Reset/Power-On Reset |
| NumberofVoltagesMonitored | 1 |
| Voltage-Threshold | 2.93V |
| Output | Push-Pull, Totem Pole |
| Reset | Active Low |
| ResetTimeout | 130ms Minimum |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | TO-236-3, SC-59, SOT-23-3 |
Tổng quan
Description
TLV809EA29DBZR is a Texas Instruments device from the TLV809 voltage detector/supervisor family. It’s a fixed-threshold “reset supervisor” that monitors the supply voltage (Vcc) and asserts a reset output to a microcontroller or digital logic when Vcc falls below its threshold. The EA29 variant denotes a specific fixed threshold and package option (DBZR). Key points: very low quiescent current, fast response, small package suitable for battery-powered designs, and typically used for power-on/brown-out reset or supervisor duties in MCU systems. For exact electrical specs (threshold value, hysteresis, reset delay, output type, and pinout), refer to the TI datasheet for TLV809EA29DBZR. If you need, I can pull or summarize the exact figures from the datasheet.
Equivalent
Equivalents (2.9 V reset, push‑pull output, 2.7–5.5 V supply):
- Onsemi CAT809/CAT810 series
- Microchip MCP1316/MCP1317 series
- Maxim MAX809/MAX810 series
Note: verify package, pinout, and reset polarity when cross-referencing for your board.
- Onsemi CAT809/CAT810 series
- Microchip MCP1316/MCP1317 series
- Maxim MAX809/MAX810 series
Note: verify package, pinout, and reset polarity when cross-referencing for your board.
Features
Here are concise features for TLV809EA29DBZR:
- Fixed 2.9 V reset threshold (voltage detector)
- Active-low reset output (push-pull)
- Ultra-low quiescent current
- Wide operating supply: ~1.65 V to 5.5 V
- Temperature range: -40°C to 125°C
- Small 5-pin SOT-23 (DBZR) package, RoHS-compliant
- Fast, clean power-on reset with built-in hysteresis
- Suitable for MCU supervision and brown-out protection
Note: exact specifications can vary by revision; consult the datasheet for precise numbers.
- Fixed 2.9 V reset threshold (voltage detector)
- Active-low reset output (push-pull)
- Ultra-low quiescent current
- Wide operating supply: ~1.65 V to 5.5 V
- Temperature range: -40°C to 125°C
- Small 5-pin SOT-23 (DBZR) package, RoHS-compliant
- Fast, clean power-on reset with built-in hysteresis
- Suitable for MCU supervision and brown-out protection
Note: exact specifications can vary by revision; consult the datasheet for precise numbers.
Pinout
- Pin count: 3 (SOT-23-3)
- Function: Fixed-threshold voltage detector / reset supervisor. Monitors Vcc and asserts an active-low reset when Vcc falls below 2.9 V (EA29). Pins: Vcc, GND, RESET_OUT.
- Function: Fixed-threshold voltage detector / reset supervisor. Monitors Vcc and asserts an active-low reset when Vcc falls below 2.9 V (EA29). Pins: Vcc, GND, RESET_OUT.
Manufacturer
- Manufacturer: Texas Instruments (TI).
- What kind of company: TI is an American multinational semiconductor design and manufacturing company that specializes in analog and mixed-signal integrated circuits and embedded processing solutions. It is headquartered in Dallas, Texas, and serves a wide range of industries with diverse electronic components.
- What kind of company: TI is an American multinational semiconductor design and manufacturing company that specializes in analog and mixed-signal integrated circuits and embedded processing solutions. It is headquartered in Dallas, Texas, and serves a wide range of industries with diverse electronic components.
Application
TLV809EA29DBZR is a voltage detector/supervisor that asserts a reset when Vcc falls below its threshold. Common applications include:
- MCU/processor reset supervision for reliable startup
- Brown-out protection in battery-powered devices
- Power-supply monitoring in IoT, sensors, wearables, and consumer electronics
- Automotive and industrial electronics requiring safe reset on rail faults
- FPGA/ASIC/PLD configuration and reset conditioning
- Power-on reset generation to ensure proper operation after power-up
These use cases apply to rail monitoring and reset signaling across digital, mixed-signal, and embedded systems.
- MCU/processor reset supervision for reliable startup
- Brown-out protection in battery-powered devices
- Power-supply monitoring in IoT, sensors, wearables, and consumer electronics
- Automotive and industrial electronics requiring safe reset on rail faults
- FPGA/ASIC/PLD configuration and reset conditioning
- Power-on reset generation to ensure proper operation after power-up
These use cases apply to rail monitoring and reset signaling across digital, mixed-signal, and embedded systems.
Package
SOT-23-3 (SC-70-3) package, RoHS lead-free variant (DBZR suffix).
