TLV803

ACTIVE

3-pin voltage supervisor (reset IC) with active-low & open-drain reset

Product details

Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 2.25, 2.64, 2.93, 4.38 Features Reset time delay, Undervoltage monitor only Reset threshold accuracy (%) 2, 2.2, 2.3 Iq (typ) (mA) 0.009 Output driver type/reset output Active-low, Open-drain Time delay (ms) 200 Supply voltage (min) (V) 1.1 Supply voltage (max) (V) 6 Rating Catalog Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
Number of supplies monitored 1 Threshold voltage 1 (typ) (V) 2.25, 2.64, 2.93, 4.38 Features Reset time delay, Undervoltage monitor only Reset threshold accuracy (%) 2, 2.2, 2.3 Iq (typ) (mA) 0.009 Output driver type/reset output Active-low, Open-drain Time delay (ms) 200 Supply voltage (min) (V) 1.1 Supply voltage (max) (V) 6 Rating Catalog Watchdog timer WDI (s) None Operating temperature range (°C) -40 to 125
SOT-23 (DBZ) 3 6.9204 mm² 2.92 x 2.37
  • 3-Pin SOT23 Package
  • Supply Current: 9 µA (Typical)
  • Precision Supply Voltage Monitor: 2.5 V, 3 V, 3.3 V, 5 V
  • Power-On Reset Generator with Fixed Delay Time of 200 ms
  • Pin-for-Pin Compatible with MAX803
  • Temperature Range: –40°C to +125°C
  • Open-Drain, RESET Output
  • 3-Pin SOT23 Package
  • Supply Current: 9 µA (Typical)
  • Precision Supply Voltage Monitor: 2.5 V, 3 V, 3.3 V, 5 V
  • Power-On Reset Generator with Fixed Delay Time of 200 ms
  • Pin-for-Pin Compatible with MAX803
  • Temperature Range: –40°C to +125°C
  • Open-Drain, RESET Output

The TLV8x3 family of supervisory circuits provides circuit initialization and timing supervision, primarily for DSPs and processor-based systems.

The TLV803, TLV853, and TLV863 are functionally equivalent. The TLV853 and TLV863 provide an alternate pinout of the TLV803. The newer TLV803E device is a pin-to-pin alternative to all of these 3.

During power on, RESET asserts when the supply voltage (VDD) exceeds 1.1 V. Thereafter, the supervisory circuit monitors VDD and keeps RESET active as long as VDD remains below the threshold voltage VIT. An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time (td(typ) = 200 ms) starts after VDD exceeds the threshold voltage, VIT. When the supply voltage drops below the VIT threshold voltage, the output is active (low) again. All the devices in this family have a fixed sense-threshold voltage (VIT) set by an internal voltage divider.

The product spectrum is designed for supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V. These devices are available in a 3-pin SOT-23 package. The TLV803 devices are characterized for operation over a temperature range of –40°C to +125°C.

 

The TLV8x3 family of supervisory circuits provides circuit initialization and timing supervision, primarily for DSPs and processor-based systems.

The TLV803, TLV853, and TLV863 are functionally equivalent. The TLV853 and TLV863 provide an alternate pinout of the TLV803. The newer TLV803E device is a pin-to-pin alternative to all of these 3.

During power on, RESET asserts when the supply voltage (VDD) exceeds 1.1 V. Thereafter, the supervisory circuit monitors VDD and keeps RESET active as long as VDD remains below the threshold voltage VIT. An internal timer delays the return of the output to the inactive state (high) to ensure proper system reset. The delay time (td(typ) = 200 ms) starts after VDD exceeds the threshold voltage, VIT. When the supply voltage drops below the VIT threshold voltage, the output is active (low) again. All the devices in this family have a fixed sense-threshold voltage (VIT) set by an internal voltage divider.

The product spectrum is designed for supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V. These devices are available in a 3-pin SOT-23 package. The TLV803 devices are characterized for operation over a temperature range of –40°C to +125°C.

 

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Design & development

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Firmware

TIDCB51 Driving a Stepper Motor With TM4C MCU Firmware

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Supported products & hardware

Supported products & hardware

Products
Supervisor & reset ICs
TLV803 3-pin voltage supervisor (reset IC) with active-low & open-drain reset
Firmware

TIDCBC1 TIDA-00447 Firmware

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Supported products & hardware

Supported products & hardware

Products
Supervisor & reset ICs
TLV803 3-pin voltage supervisor (reset IC) with active-low & open-drain reset
Support software

TIDCC99 TIDM-TM4C123XSUB1GHZ Project Source Software

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Supported products & hardware

Supported products & hardware

Products
Supervisor & reset ICs
TLV803 3-pin voltage supervisor (reset IC) with active-low & open-drain reset
Simulation model

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SOT-23 (DBZ) 3 View options

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