TPS3610U18, TPS3610T50

BATTERY BACKUP SUPERVISORS FOR RAM RETENTION

SLVS327B – DECEMBER 2000 – REVISED DECEMBER 2002

2

POST OFFICE BOX 655303

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.,

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.

standard and application-specific versions (see Note 1)

Tape and Reel

TI Package Designator

Nominal Supply Voltage

Nominal Battok Threshold Voltage

R

PW

18

TPS3610U

APPLICATION-SPECIFIC VERSIONS,

NOMINAL SUPPLY AND BATTOK VOLTAGE

TA

NOMINAL SUPPLY

VOLTAGE, VDD(NOM)

(V)

NOMINAL BATTOK

THRESHOLD VOLTAGE,

VIT(BOK) (V)

PACKAGED DEVICES

TSSOP (PW)†

40

°Cto85°C

1.8

1.6

TPS3610U18PWR

–40

°C to 85°C

5

2.4

TPS3610T50PWR

† The PW package is only available taped and reeled (indicated by the R suffix on the device type).

NOTE 1: For other NOMINAL and BATTOK voltage versions, contact your local TI sales office for availability and order lead time.