For Packaging High-speed Printers AH Series
AH3004-DC50A
Data Sheet
Ideal for packaging printers requiring high reliability.
Applications
Distribution / Food label printers
Packaging printers
Date-code printers
Features
These thermal heads feature a near-edge structure based on the high-speed, high-quality, reliable step-free SE, SF series,
enabling straight path for hand media or high speed printing
External
dimensions
(Unit : mm)
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2015 ROHM Co., Ltd. All rights reserved.
1/5
2015.04 - Rev.A
AH3004-DC50A
Equivalent
circuit
DOT#1280
DOT#1
Data Sheet
VH(COM)
220μ F
35V
#1280
#641
#640
#1
VDD
0.1μ F
50V
GND
BEO
/STB2
/STB1
/LAT
LATCH REGISTER
CLK
DI2
DI1
SHIFT
REGISTER
SHIFT
REGISTER
SENS1
SENS2
SENS3
TM
TM
CONNECTOR
DI, STB DIVISION DOT No. CORRESPONDENCE
DI No.
DI 2
DI 1
DOT No.
1280 to 641
640 to 1
/STB No.
/STB 2
/STB 1
DOT No.
1280 to 641
640 to 1
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2015 ROHM Co., Ltd. All rights reserved.
2/5
2015.04 - Rev.A
AH3004-DC50A
Pin
assignments
Connector A : HIF3FC-20PA-2.54DS(91) or equivalent
No.
1
3
5
7
9
11
13
15
17
19
Circuit
V
DD
GND
N.C.
/LAT
GND
N.C.
V
DD
/STB1
TM
SENS2
No.
2
4
6
8
10
12
14
16
18
20
Circuit
BEO
DI 2
CLK
GND
DI 1
GND
/STB2
TM
SENS1
SENS3
Data Sheet
CONNECTOR B : B6P-VH-2.2(LF)(SN) or equivalent
No.
1
3
5
Circuit
V
H
V
H
GND
No.
2
4
6
Circuit
V
H
GND
GND
Pin number : Refer to External dimensions
DI: Data In (Serial Input)
CLK : Clock Pulse)
/LAT: Data Latch
TM: Thermistor
/STBn: Strobe
V
DD
: Power Supply for Driver IC
N.C. : Non Connection
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2015 ROHM Co., Ltd. All rights reserved.
3/5
2015.04 - Rev.A
AH3004-DC50A
Timing Chart
Data Sheet
tw CLK
CLK
(CLOCK)
t setup DI
DI(DATA IN)
"High":BLACK
"LOW" :WHITE
t hold DI
BEO
min.1μ sec
t setup LAT
/LAT
(LATCH)
"High": HOLD
"LOW" : THROUGH
t hold LAT
(Max. tdo)*
t setup STB
tw LAT
/STB
(STROBE)
tdo
DRIVER
OUT
tdo
*If delay time for Driver Out can not be secured enough, there is a possibility that VH would fluctuate greatly. Please design the
circuit so that VH does not exceed peak voltage (Vp).
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2015 ROHM Co., Ltd. All rights reserved.
4/5
2015.04 - Rev.A
AH3004-DC50A
Characteristics
Parameter
Effective printing width
Dot pitch
Total dot number
Average resistance value
Applied voltage
Applied power
Print cycle
Pulse width
Maximum number of dots energized simultaneously
Maximum clock frequency
Maximum platen diameter
Running life / pulse life
Operating temperature
symbol
-
-
-
R
ave
V
H
Po
SLT
T
ON
-
-
-
-
-
Typical
108.416
0.0847
1280
1250
24
0.41
1.5
0.305
1280
10
∞
50/1×10
8
5 to 45
Data Sheet
Unit
mm
mm
dots
Ω
V
W/dot
ms/line
ms
dots
MHz
mm
Km/pulse
°C
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2015 ROHM Co., Ltd. All rights reserved.
5/5
2015.04 - Rev.A
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