SA56004X_5

© NXP B.V. 2008. All rights reserved.

Product data sheet

Rev. 05 — 22 May 2008

22 of 36

NXP Semiconductors

SA56004X

Digital temperature sensor with overtemperature alarms

10. Characteristics

[1]

[2]

minimum of 200 mV above the power-on reset. During the time that it is disabled, the temperature that is in the ‘read temperature

registers’ will remain at the value that it was before the A/D was disabled. This is done to eliminate the possibility of reading unexpected

is stored in the ‘read temperature registers’ will be the default value of 0

°C. V

will function correctly and the normal temperature will be read.

[3]

[4]

Table 18.

Electrical characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

local temperature error

−2

±1+2

°C

−3-

+3

°C

remote temperature error

−1-

+1

°C

−3-

+3

°C

remote temperature

resolution

-

11

-

bit

-

0.125

-

°C

local temperature resolution

-

11

-

bit

-

0.125

-

°C

conversion period

-

38

-

ms

supply voltage

[1] 3.0

-

5.5

V

quiescent current

during conversion,

16 Hz conversion rate

-

500

-

µA

shut-down current

SMBus inactive

-

10

-

µA

remote diode source current

high setting: D+

− D− = +0.65 V

-

160

-

µA

low setting

-

10

-

µA

UVL

UnderVoltage Lockout (UVL)

threshold voltage[2]

conversion

[3] 2.6

-

2.95

V

Power-On Reset (POR)

threshold voltage

[4] 1.8

-

2.4

V

local and remote ALERT high

default temperature settings

default values set at power-up

-

+70

-

°C

local and remote ALERT low

default temperature settings

default values set at power-up

-

0

-

°C

local and remote T_CRIT

default temperature settings

default values set at power-up

-

+85

-

°C

T_CRIT hysteresis

default value set at power-up

-

+10

-

°C

ALERT and T_CRIT output

saturation voltage

-

-

0.4

V