(China (Mainland))
Product Summary
The TPS3820-33DBVR supervisor provides circuit initialization and timing supervision, primarily for DSP and processor-based systems. It incorporates a manual reset input, MR. A low level at MR causes RESET to become active. The TPS3820-33DBVR has a watchdog timer that is periodically triggered by a positive or negative transition at WDI. In applications where the input to the WDI pin may be active (transitioning high and low) when the TPS3820-33DBVR is asserting RESET, the TPS3820-33DBVR does not return to a non-reset state when the input voltage is above Vt. The product spectrum is designed for supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V. The circuits are available in a 5-pin SOT23-5 package.
Parametrics
Absolute maximum ratings over operating free-air temperature range: (1)Supply voltage, VDD (see Note 1): 6 V; (2)RESET, RESET, MR, WDI (see Note 1): –0.3 V to (VDD + 0.3 V); (3)Maximum low output current, IOL: 5 mA; (4)Maximum high output current, IOH: –5 mA; (5)Input clamp current range, IIK (VI < 0 or VI > VDD): ±10 mA; (6)Output clamp current range, IOK (VO < 0 or VO > VDD): ±10 mA; (7)Continuous total power dissipation: See Dissipation Rating Table; (8)Operating free-air temperature range, TA: –40℃ to 85℃; (9)Storage temperature range, Tstg: –65℃ to 150℃; (10)Soldering temperature: 260℃.
Features
Features: (1)Power-On Reset Generator With Fixed Delay Time of 200 ms (TPS3823/4/5/8)or 25 ms (TPS3820); (2)Manual Reset Input (TPS3820/3/5/8); (3)Reset Output Available in Active-Low (TPS3820/3/4/5), Active-High (TPS3824) and Open-Drain (TPS3828); (4)Supply Voltage Supervision Range 2.5 V, 3 V, 3.3 V, 5 V; (5)Watchdog Timer (TPS3820/3/4/8); (6)Supply Current of 15 μA (Typ); (7)SOT23-5 Package; (8)Temperature Range: –40℃ to 85℃.
Diagrams
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 TPS3820-33DBVR |
Texas Instruments |
Supervisory Circuits Processor Sprvisry Circuits |
Data Sheet |
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TPS3820-33DBVRG4 |
Texas Instruments |
Supervisory Circuits Processor Sprvisry Circuits |
Data Sheet |
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