DS56
DC ELECTRICAL CHARACTERISTICS:
Bandgap Voltage Reference V
REF
PARAMETER
V
REF
Output
Power Supply
Regulation
Load Regulation
SYMBOL
V
REF
?
V
REF
/
?
V
DD
?
V
REF
/
?
I
L
CONDITION
2.7V≤
DD
≤
V 3.3V
30V≤
DD
≤
V
5.5V
+3.0µA≤
L
≤
I
+50µA
(-40°C to +125°C; 2.7V
≤
V
DD
≤
5.5V)
MIN
1.238
TYP
1.25
MAX
1.263
±1.45
±0.2
0.15
UNITS
V
mV
mV/V
mV/µA
NOTES
DC ELECTRICAL CHARACTERISTICS:
Trip Point Inputs V
T1
/V
T2
PARAMETER
Input Bias Current
Input Range
SYMBOL
I
BIAS
V
TIN
CONDITION
(-40°C to +125°C; 2.7V
≤
V
DD
≤
5.5V)
MIN
0
TYP
MAX
300
(V
DD
-1.0)
UNITS
nA
V
NOTES
DC ELECTRICAL CHARACTERISTICS:
Thermostat Outputs T
OUT1
/T
OUT2
PARAMETER
Logic 1 Output
Leakage Current
LOGICAL 0
Output Voltage
SYMBOL
I
OUT1
V
OUT0
CONDITION
V
DD
= 5.0V
I
OUT
= +50 µA
(-40°C to +125°C; 2.7V
≤
V
DD
≤
5.5V)
MIN
TYP
MAX
1.0
0.4
UNITS
µA
V
NOTES
NOTES:
1. All voltages are referenced to ground, unless otherwise specified.
2. Solder according to IPC standards.
3. Specified for V
TEMP
sourcing 1.0 µA (max) and V
REF
load current = 50 µA.
4. Includes error associated with internal temperature sensor, bandgap voltage V
REF
, and comparator
offset. External resistance tolerance and temperature coefficient not included in this spec.
5. Thermometer error (expressed in °C) is the difference between [V
O
(T) - 395]/6.20 and the DS56 case
temperature at V
DD
= 3.0V, thus taking into account sensor error, DC offset error, sensor amplifier
gain variations, and amplifier nonlinearity.
TYPICAL DS56 THERMOMETER ERROR
Figure 3
TBD
TYPICAL DS56 V
TEMP
TRANSFER FUNCTION
Figure 4
TBD
5 of 6
102299
DALLAS [ DALLAS SEMICONDUCTOR ]
