LP3470 datasheet(5/22 Pages) TI1

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LP3470

www.ti.com

SNVS003G – JUNE 1999 – REVISED APRIL 2016

Product Folder Links: LP3470

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(1)

Minimum and maximum limits in standard typeface are 100% production tested at 25°C. Minimum and maximum limits in full operating

temperature range are ensured through correlation using Statistical Quality Control (SQC) methods. The limits are used to calculate TI's

Average Outgoing Quality Level (AOQL).

(2)

Typical numbers are at 25°C and represent the most likely parametric norm.

(3)

VHYST affects the relation between VCC and Reset as shown in the timing diagram.

(4)

tRP is programmable by varying the value of the external capacitor (C1) connected to pin SRT. The equation is: tRP = 2000 × C1 (C1 in

µF and tRP in ms).

6.5 Electrical Characteristics

Limits and typical numbers are for TJ = 25°C, and VCC = 2.4 V to 5 V (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN(1)

TYP(2)

MAX(1)

UNIT

VCC

Operating voltage

TJ = –20°C to 85°C

0.5

5.5

ICC

VCC supply current

VCC = 4.5 V

TJ = 25°C

µA

TJ = –20°C to 85°C

VRTH

Reset threshold voltage

LP3470

0.99 × VRTH

VRTH

1.01 × VRTH

LP3470I

TJ = 25°C

0.99 × VRTH

VRTH

1.01 × VRTH

TJ = –40°C to 85°C

0.985 × VRTH

1.015 × VRTH

VHYST

Hysteresis voltage(3)

TJ = 25°C

TJ = –20°C to 85°C

tPD

VCC to reset delay

VCC falling at 1 mV/µs

TJ = 25°C

100

µs

TJ = –20°C to 85°C

300

tRP

Reset time-out period(4)

C1 = 1 nF

TJ = 25°C

TJ = –20°C to 85°C

3.5

VOL

Reset output voltage low

VCC = 0.5 V, IOL = 30 µA, TJ = –20°C to 85°C

0.1

VCC = 1 V, IOL = 100 µA, TJ = –20°C to 85°C

0.1

VCC =VRTH − 100 mV, IOL = 4 mA,

TJ = –20°C to 85°C

0.4

External pullup resistor

0.68

ILEAK

Reset output leakage current

TJ = 25°C

0.15

µA

TJ = –20°C to 85°C

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