LP3809

LP3809-datasheet

Oct.-2004

2-2

Functional Pin Description

Pin Name Pin Function

GND

Ground

RESET

Active Low Open-Drain Reset Output

VDD

Power Pin

Function Block Diagram

Absolute Maximum Ratings

Supply Input Voltage---------------------------------------------------------------------------------------------------6V

Power Dissipation, PD @ TA = 25°C

SOT-23 --------------------------------------------------------------------------------------------------------------------400mW

Package Thermal Resistance

SOT-23, θJA -------------------------------------------------------------------------------------------------------------250°C/W

ESD Susceptibility

HBM (Human Body Mode) ---------------------------------------------------------------------------------------------2kV

MM(Machine-Mode)-----------------------------------------------------------------------------------------------------200V

Recommended Operating Conditions

Supply Input Voltage-----------------------------------------------------------------------------0.3V to 6V

Operation Ambient Temperature Range------------------------------------------------−40°C to 85°C

Electrical Characteristics

Parameter

Symbol

Test Conditions

Min

Typ

Max

Units

Quiescent Current

IQ

VEN ≥ 1.2V, IOUT =

0mA

3

μ

A

Reset Threshold

VTH

TA = 27°C

1.2

1.5

V

Threshold Voltage Accuracy

Δ

VTH

-1.5

1.5

%

VDD Drop to Reset Delay

Trd

Drop = VTH -125mV

20

uS

Reset Active Time

LP3809A/B VDD ≥ 1.02×VTH

210

mS

RESET Output Voltage Low

VOL

3 = VDD < VTH ISINK

>3.5mA

0.4

V

Thermal Shutdown

Temperature

TSD

165

°

C