參數(shù)資料
型號: LTPH245
廠商: Seiko Instruments Inc.
英文描述: LINE THERMAL PRINTER MECHANISM TECHNICAL REFERENCE
中文描述: 熱敏打印機芯線技術(shù)參考
文件頁數(shù): 30/64頁
文件大?。?/td> 841K
代理商: LTPH245
3-17
3.5.6 Thermal Head Electrical Characteristics
Table 3-9 Thermal Head Electrical Characteristics
(Vdd=4.5 to 5.5V, Ta=0 to 50
°
C)
Rated Values
TYP
MAX
170
195.5
Item
Simbol
Conditions
MIN
144.5
Unit
Head resistance
RH
V
Head drive voltage
Vp
4.2
7.2
8.5
Head drive current
Ip
max. common activated dot 64
1.3
2.6
3.5
A
Logic block voltage
Vdd
4.5
5.0
5.5
V
Waiting for activation
-
-
0.5
mA
fclk=4MHz,DAT=fixed
-
-
6
mA
Logic block current
Idd
Ta=
25
°
C
fclk=4MHz,DAT=1/2fclk
CLK,DAT,LATCH,DST
-
-
10
mA
"High" input voltage
Vih
0.8
×
Vdd
-
Vdd
V
"Low" input voltage
Vil
CLK,DAT,LATCH,DST
0
-
0.2
×
Vdd
V
CLK
-
-
3
μ
A
DAT
-
-
0.5
μ
A
LATCH
-
-
3
μ
A
"High" input
current
DST
Iih
Ta=25
°
C
Vdd=5.0(V)
Vih=5.0(V)
-
-
55
μ
A
CLK
-
-
-3
μ
A
DAT
-
-
-0.5
μ
A
LATCH
-
-
-3
μ
A
"Low" input
current
DST
Iil
Ta=25
°
C
Vdd=5.0(V)
Vil=0(V)
-
-
-0.5
μ
A
Driver leak current
I leak Vp=7(V), for 1 bit
-
-
1.0
μ
A
CLK frequency
fclk
-
-
4
MHz
CLK pulse width
t1
See the Timing Chart
80
-
-
ns
DAT setup-time
t2
See the Timing Chart
50
-
-
ns
DAT hold time
t3
See the Timing Chart
50
-
-
ns
LATCH setup time
t4
See the Timing Chart
120
-
-
ns
LATCH pulse width
t5
See the Timing Chart
120
-
-
ns
LATCH hold time
t6
See the Timing Chart
120
-
-
ns
DST setup time
t7
See the Timing Chart
120
-
-
ns
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