Product Summary

The TPS3828-33DBVR supervisor provides circuit initialization and timing supervision, primarily for DSP and processor based systems. During power-on, RESET is asserted when supply voltage VDD becomes higher than 1.1 V. Thereafter, the supply voltage supervisor 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, starts after VDD has risen above the threshold voltage VIT–. When the supply voltage drops below the threshold voltage VIT–, the output becomes active (low) again. No external components are required. The TPS3828-33DBVR has a fixed-sense threshold voltage VIT– set by an internal voltage divider.

Parametrics

TPS3828-33DBVR absolute maixmum ratings: (1)Supply voltage, VDD: 6 V; (2)RESET, RESET, MR, WDI: –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

TPS3828-33DBVR features: (1)Power-On Reset Generator With Fixed; (2)Delay Time of 200 ms (TPS3823/4/5/8) or 25 ms (TPS3820); (3)Manual Reset Input (TPS3820/3/5/8); (4)Reset Output Available in Active-Low (TPS3820/3/4/5), Active-High (TPS3824) and Open-Drain (TPS3828); (5)Supply Voltage Supervision Range 2.5 V, 3 V, 3.3 V, 5 V; (6)Watchdog Timer (TPS3820/3/4/8); (7)Supply Current of 15 μA (Typ); (8)SOT23-5 Package; (9)Temperature Range: –40℃ to 85℃.

Diagrams

TPS3828-33DBVR functional block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
TPS3828-33DBVR
TPS3828-33DBVR

Texas Instruments

Supervisory Circuits Processor Sprvisry Circuits

Data Sheet

0-1: $1.04
1-25: $0.82
25-100: $0.74
100-250: $0.60
TPS3828-33DBVRG4
TPS3828-33DBVRG4

Texas Instruments

Supervisory Circuits Processor Sprvisry Circuits

Data Sheet

0-2070: $0.40
2070-3000: $0.37
3000-6000: $0.36
6000-12000: $0.34