TPS3307

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Datenblatt

document-pdfAcrobat Triple Processor Supervisors datasheet (Rev. C) (Englisch)

TPS3307

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Number of supplies monitored

3

Threshold voltage 1 (typ) (V)

1.25, 1.68, 2.25, 2.93, 4.55

Features

Complimentary output, Manual reset capable, Reset time delay, Separate VDD & sense, Undervoltage monitor only

Reset threshold accuracy (%)

3.2

Iq (typ) (mA)

0.04

Output driver type/reset output

Active-high, Active-low, Push-Pull

Time delay (ms)

200

Supply voltage (min) (V)

2

Supply voltage (max) (V)

6

Rating

Catalog

Watchdog timer WDI (s)

None

Operating temperature range (°C)

-40 to 85

Number of supplies monitored

3

Threshold voltage 1 (typ) (V)

1.25, 1.68, 2.25, 2.93, 4.55

Features

Complimentary output, Manual reset capable, Reset time delay, Separate VDD & sense, Undervoltage monitor only

Reset threshold accuracy (%)

3.2

Iq (typ) (mA)

0.04

Output driver type/reset output

Active-high, Active-low, Push-Pull

Time delay (ms)

200

Supply voltage (min) (V)

2

Supply voltage (max) (V)

6

Rating

Catalog

Watchdog timer WDI (s)

None

Operating temperature range (°C)

-40 to 85

HVSSOP (DGN)

8

14.7 mm² 3 x 4.9

SOIC (D)

8

29.4 mm² 4.9 x 6

Triple Supervisory Circuits for DSP and Processor-Based Systems
Power-On Reset Generator With Fixed Delay Time of 200ms, No External Capacitor Needed
Temperature-Compensated Voltage Reference
Maximum Supply Current of 40µA
Supply Voltage Range: 2V to 6V
Defined RESET Output From V_DD ≥ 1.1V
MSOP-8 and SO-8 Packages
Temperature Rang: -40°C to +85°C

APowerPAD is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.

Triple Supervisory Circuits for DSP and Processor-Based Systems
Power-On Reset Generator With Fixed Delay Time of 200ms, No External Capacitor Needed
Temperature-Compensated Voltage Reference
Maximum Supply Current of 40µA
Supply Voltage Range: 2V to 6V
Defined RESET Output From V_DD ≥ 1.1V
MSOP-8 and SO-8 Packages
Temperature Rang: -40°C to +85°C

APowerPAD is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.

The TPS3307 family is a series of micropower supply voltage supervisors designed for circuit initialization primarily in DSP and processor-based systems, which require more than one supply voltage.

The product spectrum of the TPS3307-xx is designed for monitoring three independent supply voltages: 3.3V/1.8V/adj, 3.3V/2.5V/adj or 3.3V/5V/adj. The adjustable SENSE input allows the monitoring of any supply voltage >1.25V.

The various supply voltage supervisors are designed to monitor the nominal supply voltage.

During power-on, RESET is asserted when the supply voltage V_DD becomes higher than 1.1V. Thereafter, the supply voltage supervisor monitors the SENSEn inputs and keeps RESET active as long as SENSEn remain below the threshold voltage V_IT+.

An internal timer delays the return of the RESET output to the inactive state (high) to ensure proper system reset. The delay time, t_{d (typ)}= 200ms, starts after all SENSEn inputs have risen above the threshold voltage V_IT+. When the voltage at any SENSE input drops below the threshold voltage V_IT-, the RESET output becomes active (low) again.

The TPS3307-xx family of devices incorporates a manual reset input, MR. A low level at MR causes RESET to become active. In addition to the active-low RESET output, the TPS3307-xx family includes an active-high RESET output.

The devices are available in either 8-pin MSOP or standard 8-pin SO packages.

The TPS3307-xx devices are characterized for operation over a temperature range of -40°C to +85°C.