TPS361750

BATTERY BACKUP SUPERVISOR

FOR RAM RETENTION

SLVS339B – DECEMBER 2000 – REVISED DECEMBER 2002

8

POST OFFICE BOX 655303

recommended operating conditions

MIN

MAX

UNIT

Supply voltage, VDD

1.65

5.5

V

Battery supply voltage, VBAT

1.5

5.5

V

Input voltage, VI

0

VDD + 0.3

V

High-level input voltage, VIH

0.7 x VDD

V

Low-level input voltage, VIL

0.3 x VDD

V

Continuous output current at VOUT, IO

300

mA

Input transition rise and fall rate at MR,

∆t/∆V, WDI

100

ns/V

Slew rate at VDD or VBAT

1

V/

µs

Operating free-air temperature range, TA

–40

85

°C

electrical characteristics over recommended operating conditions (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VDD = 1.8 V, IOH = –400 µA

VDD – 0.2 V

VOH

High level output voltage

RESET

VDD = 3.3 V, IOH = –2 mA

VDD = 5 V,

IOH = –3 mA

VDD – 0.4 V

V

VOH

High-level output voltage

VDD = 1.8 V, IOH = –20 µA

VDD – 0.3 V

V

PFO

VDD = 3.3 V, IOH = –80 µA

VDD = 5 V,

IOH = –120 µA

VDD – 0.4 V

RESET

VDD = 1.8 V, IOL = 400 µA

0.2

VOL

Low-level output voltage

RESET

PFO

VDD = 3.3 V, IOL = 2 mA

VDD = 5 V,

IOL = 3 mA

0.4

V

Vres

Power-up reset voltage (see Note 2)

VBAT > 1.1 V, or

VDD > 1.1 V, IOL = 20 µA

0.4

V

IO = 8.5 mA,

VDD = 1.8 V, VBAT = 0 V

VDD – 50 mV

Normal mode

IO = 125 mA,

VDD = 3.3 V, VBAT = 0 V

VDD – 150 mV

VOUT

IO = 200 mA,

VDD = 5 V,

VBAT = 0 V

VDD – 200 mV

V

Batter back p mode

IO = 0.5 mA,

VBAT = 1.5 V, VDD = 0 V

VBAT – 20 mV

Battery-backup mode

IO = 7.5 mA,

VBAT = 3.3 V, VDD = 0 V

VBAT – 113 mV

NOTE 2: The lowest supply voltage at which RESET becomes active. tr, VDD ≥ 15 µs/V.