TPS3305-33

` Dual Supervisory Circuits for DSP and Processor-Based Systems
` Power-On Reset Generator with Fixed Delay Time of 200 ms, no External Capacitor Needed
` Watchdog Timer Retriggers the RESET Output at SENSEn V<sub>IT</sub>+
` Temperature-Compensated Voltage Reference
` Maximum Supply Current of 40 mA
` Supply Voltage Range . . . 2.7 V to 6 V
` Defined RESET Output from V<sub>DD</sub> 1.1 V
` MSOP-8 and SO-8 Packages
` Temperature Range . . . 40 to 85

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage, V_DD (see Note1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
All other pins (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to 7 V
Maximum low output current, I_OL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  5 mA
Maximum high output current, I_OH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 mA
Input clamp current, I_IK (V_I < 0 or V_I > V_DD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA
Output clamp current, I_OK (V_O < 0 or V_O > V_DD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  ±20 mA
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  See Dissipation Rating Table
Operating free-air temperature range, T_A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40 to 85
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 to 150
Soldering temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260

† Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTE 1: All voltage values are with respect to GND. For reliable operation the device must not be operated at 7 V for more than t = 1000 h continuously.

The TPS3305 family is a series of micropower supply voltage supervisors designed for circuit initialization, primarily in DSP and processor-based systems, which require two supply voltages.

The TPS3305 spectrum of the TPS3305 is designed for monitoring two independent supply voltages of 3.3 V/1.8 V, 3.3 V/2.5 V or 3.3 V /5 V.