Спецификации
| Атрибут | Ценность |
| 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 | 20ms Minimum |
| OperatingTemperature | -40°C ~ 105°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | TO-236-3, SC-59, SOT-23-3 |
Обзор
Description
MAX809SN293D2T1G is a fixed-threshold voltage supervisor (reset generator) from Maxim Integrated. It monitors Vcc and asserts a microcontroller reset when the supply falls below its 2.93 V threshold (the SN293 variant). It provides a reliable power-on reset and is designed for 2.7–5.5 V operation. The part typically requires no external components and delivers a clean reset signal suitable for MCU reset pins (active-low reset in many applications). The “D2”/“T1G” suffixes refer to its packaging and temperature/lot options, with T1G indicating RoHS-compliant packaging. For exact pinout, timing, and reset polarity, consult the MAX809 datasheet.
Equivalent
Equivalent parts (2.93 V fixed-threshold reset supervisors in common 3-pin packages):
- TI TLV803-293
- TI TMP390 (2.93 V option)
- Microchip MCP131/MCP132 family (2.93 V variants)
- Analog Devices ADM803/ADM809 (2.93 V variants)
- ON Semiconductor NCP803/NCP803A
Note: verify packaging, pull-up requirements, and reset polarity to match MAX809SN293D2T1G.
- TI TLV803-293
- TI TMP390 (2.93 V option)
- Microchip MCP131/MCP132 family (2.93 V variants)
- Analog Devices ADM803/ADM809 (2.93 V variants)
- ON Semiconductor NCP803/NCP803A
Note: verify packaging, pull-up requirements, and reset polarity to match MAX809SN293D2T1G.
Features
MAX809SN293D2T1G is a low-power voltage supervisor for 3V systems. Key features:
- Fixed 2.93 V reset threshold (suitable for 3V rails)
- Active-low reset output (RESET#) with push-pull drive
- Manual reset input (MR)
- Power-on reset and brown-out protection: asserts reset during power-up and when Vcc drops
- Very low quiescent current (microamp range)
- Wide operating voltage: 2.7 V to 5.5 V
- Temperature range: -40°C to +85°C
- Small 6-pin package (D2). RoHS compliant (typical for SC70/SOT23-6 variants)
- No external components required for basic operation
Note: Specifics like timing (reset pulse width) are defined in the datasheet and depend on the exact package and variant.
- Fixed 2.93 V reset threshold (suitable for 3V rails)
- Active-low reset output (RESET#) with push-pull drive
- Manual reset input (MR)
- Power-on reset and brown-out protection: asserts reset during power-up and when Vcc drops
- Very low quiescent current (microamp range)
- Wide operating voltage: 2.7 V to 5.5 V
- Temperature range: -40°C to +85°C
- Small 6-pin package (D2). RoHS compliant (typical for SC70/SOT23-6 variants)
- No external components required for basic operation
Note: Specifics like timing (reset pulse width) are defined in the datasheet and depend on the exact package and variant.
Pinout
Pin count: 3 pins.
Function: MAX809SN293D2T1G is a 2.93 V threshold voltage supervisor (reset generator). It monitors Vcc and asserts its RESET output during power-up or whenever Vcc falls below 2.93 V, providing a reset signal for a microcontroller. Pinout typically: VCC, GND, RESET (output).
Function: MAX809SN293D2T1G is a 2.93 V threshold voltage supervisor (reset generator). It monitors Vcc and asserts its RESET output during power-up or whenever Vcc falls below 2.93 V, providing a reset signal for a microcontroller. Pinout typically: VCC, GND, RESET (output).
Manufacturer
- Manufacturer: Maxim Integrated (now part of Analog Devices).
- What kind of company: A global semiconductor company that designs and manufactures analog and mixed-signal integrated circuits, including voltage supervisors, power-management ICs, sensors, and interfaces for consumer, industrial, and automotive markets.
- What kind of company: A global semiconductor company that designs and manufactures analog and mixed-signal integrated circuits, including voltage supervisors, power-management ICs, sensors, and interfaces for consumer, industrial, and automotive markets.
Application
MAX809SN293D2T1G is a fixed 2.93 V voltage supervisor used to generate a proper reset for microcontrollers and digital ICs when Vcc rises/falls. Common applications include:
- Microcontrollers, DSPs, and SOCs in consumer, IoT, and portable devices
- Power-on/reset and brown-out protection for 3 V systems
- Reset control for DC-DC regulators and power rails
- Reliable reset signaling in battery-powered instruments, sensors, and wearables
- Embedded industrial equipment and instrumentation requiring deterministic reset on supply fluctuations
In short: any system needing a clean, deterministic reset on power-up/down or voltage dips.
- Microcontrollers, DSPs, and SOCs in consumer, IoT, and portable devices
- Power-on/reset and brown-out protection for 3 V systems
- Reset control for DC-DC regulators and power rails
- Reliable reset signaling in battery-powered instruments, sensors, and wearables
- Embedded industrial equipment and instrumentation requiring deterministic reset on supply fluctuations
In short: any system needing a clean, deterministic reset on power-up/down or voltage dips.
Package
SOT-23-3 (SC-70-3) package; RoHS lead-free (T1G).
