TPS3610U18PWR

Manual Reset : Not Resettable
Watchdog : Watchdog
Supply Voltage - Max : 5.5 V
Maximum Operating Temperature : + 85 C
Mounting Style : SMD/SMT
Packaging : Reel
Number of Voltages Monitored : 1
Supply Current (Typ) : 20 uA
Battery Backup Switching : Backup
Maximum Power Dissipation : 700 mW
Output Type : Push-Pull
Power-Up Reset Delay (Typ) : 100 ms
Supply Voltage - Min : 1.65 V
Package / Case : TSSOP-14
Undervoltage Threshold : 1.71 V
Overvoltage Threshold : 1.74 V
Monitored Voltage : 1.8 V, 5 V


Features:

` Supply Current of 40 A (Max)
` Battery Supply Current of 100 nA (Max)
` Precision Supply-Voltage Monitor,
  1.8 V, 5 V; Other Options on Request
` Watchdog Timer With 800-ms Time-Out
` Backup-Battery Voltage Can Exceed VDD
` Power-On Reset Generator With Fixed
  100-ms Reset Delay Time
` Battery-OK Output
` Voltage Monitor for Power-Fail or
  Low-Battery Monitoring
` Manual Switchover to Battery-Backup Mode
` Chip-Enable Gating . . . 3 ns (at VDD = 5 V)
  Max Propagation Delay
` Battery-Freshness Seal
` 14-pin TSSOP Package
` Temperature Range . . . 40°C to 85°C


Application

· Fax Machines
· Set-Top Boxes
· Advanced Voice Mail Systems
· Portable Battery-Powered Equipment
· Computer Equipment
· Advanced Modems
· Automotive Systems
· Portable Long-Time Monitoring Equipment
· Point of Sale Equipment


Pinout




Specifications

Supply voltage, V_DD (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 V
All other pins (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.3 V to 7 V
Continuous output current at V_OUT, I_O(V_OUT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400 mA
Continuous output current (all other pins) I_O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±10 mA
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .See Dissipation Rating Table
Operating free-air temperature range, T_A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40°C to 85°C
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C
Lead temperature soldering 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . 260°C
† 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 2: All voltage values are with respect to GND. For reliable operation the device must not be operated at 7 V for more than t=1000h
continuously


Description

The TPS3610 family of supervisory circuits monitors and controls processor activity by providing backup-battery switchover for data retention of CMOS RAM. Other features include an additional power-fail comparator, low-line indication, watchdog function, battery-status indicator, manual switchover, and write protection for CMOS RAM.

The TPS3610 family allow usage of 3-V or 3.6-V lithium batteries as the backup supply in systems with, e.g., VDD = 1.8 V. During power-on, RESET is asserted when the supply voltage (VDD or VBAT) becomes higher than 1.1 V. Thereafter, the supply-voltage supervisor monitors VDD and keeps RESET output 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 starts after VDD has risen above the threshold voltage VIT.

When the supply voltage drops of TPS3610 below the threshold voltage VIT, the output becomes active (low) again.

The product spectrum is designed for supply voltages of 1.8 V and 5 V. The circuits are available in a 14-pin TSSOP package. TPS3610 devices are characterized for operation over a temperature range of 40°C to 85°C.

Parameters:

Technical/Catalog Information	TPS3610U18PWR
Vendor	Texas Instruments (VA)
Category	Integrated Circuits (ICs)
Output	Push-Pull, Totem Pole
Reset	Active Low
Package / Case	14-TSSOP
Packaging	Digi-Reel?
Number of Voltages Monitored	1
Reset Timeout	60 ms Minimum
Type	Battery Backup Circuit
Voltage - Threshold	1.71V
Operating Temperature	-40°C ~ 85°C
Drawing Number	296; 4040064; PW; 8, 14, 16, 20, 24, 28
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	TPS3610U18PWR TPS3610U18PWR 296 10911 6 ND 296109116ND 296-10911-6