SA56004X Datasheet, PDF (22/36 Pages) NXP Semiconductors – 1 Degrees Celcious accurate, SMBus-compatible, 8-pin, remote/local digital temperature sensor with over temperature alarms

NXP Semiconductors
SA56004X
Digital temperature sensor with overtemperature alarms
10. Characteristics
Table 18. Electrical characteristics
V_DD = 3.0 V to 3.6 V; T_amb = −40 °C to +125 °C; unless otherwise specified.
Symbol Parameter
Conditions
T_ERRL local temperature error
T_ERRR remote temperature error
T_amb = +60 °C to +100 °C
T_amb = −40 °C to +125 °C
T_amb = +25 °C to +85 °C;
T_RD = +60 °C to +100 °C
T_amb = −40 °C to +85 °C;
T_RD = −40 °C to +125 °C
T_RESR
remote temperature
resolution
T_RESL local temperature resolution
T_conv
V_DD
I_DD
I_RD
UVL
conversion period
supply voltage
quiescent current
during conversion,
16 Hz conversion rate
shut-down current
SMBus inactive
remote diode source current high setting: D+ − D− = +0.65 V
low setting
UnderVoltage Lockout (UVL) V_DD input disables A/D
threshold voltage^[2]
conversion
Power-On Reset (POR)
threshold voltage
V_DD input falling edge
local and remote ALERT high default values set at power-up
default temperature settings
local and remote ALERT low default values set at power-up
default temperature settings
local and remote T_CRIT
default values set at power-up
default temperature settings
T_CRIT hysteresis
default value set at power-up
ALERT and T_CRIT output I_O = 6.0 mA
saturation voltage
Min
−2
−3
−1
−3
-
-
-
-
-
[1] _3.0
-
-
-
-
[3] _2.6
[4] _1.8
-
-
-
-
-
Typ
Max
Unit
±1
+2
°C
-
+3
°C
-
+1
°C
-
+3
°C
11
-
bit
0.125 -
°C
11
-
bit
0.125 -
°C
38
-
ms
-
5.5
V
500
-
µA
10
-
µA
160
-
µA
10
-
µA
-
2.95
V
-
2.4
V
+70
-
°C
0
-
°C
+85
-
°C
+10
-
°C
-
0.4
V
[1] The SA56004X is optimized for 3.3 V V_DD operation.
[2] Definition of Under Voltage Lockout (UVL): The value of V_DD below which the internal A/D converter is disabled. This is designed to be a
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
false temperatures due to the A/D converter not working correctly due to low voltage. In case of power-up (rising V_DD), the reading that
is stored in the ‘read temperature registers’ will be the default value of 0 °C. V_DD will rise to the value of the UVL, at which point the A/D
will function correctly and the normal temperature will be read.
[3] V_DD (rising edge) voltage below which the A/D converter is disabled.
[4] V_DD (falling edge) voltage below which the logic is reset.
SA56004X_5
Product data sheet
Rev. 05 — 22 May 2008
© NXP B.V. 2008. All rights reserved.
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