Epson S1D15722 Series, Техническое руководство, Страница: 63 / 77

9. DC CHARACTERISTICS
58 EPSON S1D15722D01B000 Technical Manual (Rev.1.1)
9.4 Temperature Sensor Characteristics
9.4.1 Analog Voltage Output Characteristics
Table 9.8
Standard value
Item Symbol Conditions
Min. Typ. Max.
Unit
Applicable
pin
Operating Voltage range V
SV
- 3.0 - 5.5 V V
DD
* 16
Operating temperature range T
a
- -40 - 90
°
C
Temperature accuracy T
ACCA
TBD to TBD
°
C
-5 - +5
°
C
SVD2
*
12,
*
13
Output voltage V
SVD2
-40
°
C
1.490 1.467 1.444 V SVD2
25
°
C
1.185 1.160 1.136
*
12,
*
13
90
°
C
0.857 0.831 0.805
Output voltage temperature
gradient
V
GRA
* 14 - -5.06 -
mV/
°
C
SVD2
*
12,
*
13
Output voltage setup time
t
SEN
* 15 100 - - ms SVD2
*
12,
*
15
Operating current I
SEN
25
°
C
- 100 250
µ
A
V
DD
* 16
[References marked with an asterisk (*)]
*12: To obtain an accurate output voltage value, it should be noted that current path and capacity must not be
provided between the SVD2 and V
DD
, V
DI
, V
DD2
.
*13: The curve of the sensor analog output voltage SVD2 is approximated by the following expression.
] [ 281 . 1 10 763 . 4 10 641 . 2
3 2 6
2
V T T V
SVD
+ • × − • × − = − −
(Expression 9.1)
The accuracy is
±
5
°
C at -40 to 90
°
C.
*14: It is temperature gradient of V
SVD2
output approximation strait line. Accuracy of analog sensor output is
caliculated as following.
∆
V
SVD2
=
±
(5.06
×
5)
≅ ±
25[mV]
Temperature [
℃
]
O
u
tput
vo
lt
ag
e
V
SV
D2
[V
]
center value
by (Expression 9.1)
Ta
V
SVD2
Ta+5 Ta-5
V
SVD2
(min)
V
SVD2
(max)
5
℃
5
℃
25mV
25mV
Accuracy of V
SVD2
±
(5.06
×
5)
±
25mV
Accuracy
Fig.9.5
*15: The wait time after inputting the temperature sensor ON command until the output voltage can be
monitored steadily. It is applied not to connect capacitance to SVD2 pin. Be sure to sample the output
voltage after a fixed wait time or longer.
*16: Include operating current of built-in V
DI
generating circuit.