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LTPH245 데이터시트(PDF) 29 Page - Seiko Instruments Inc

부품명 LTPH245
상세설명  LINE THERMAL PRINTER MECHANISM TECHNICAL REFERENCE
PDF  64 Pages
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제조업체  SII [Seiko Instruments Inc]
홈페이지  http://www.sii.co.jp
Logo SII - Seiko Instruments Inc

LTPH245 데이터시트(HTML) 29 Page - Seiko Instruments Inc

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3-16
3.5.4
Head Voltage
The printer has a built-in head driver IC. Table 3-8 shows the head voltage.
Table 3-8 Head Voltage
Item
Voltage Range
Head drive voltage
Vp
4.2 to 8.5 V
Head logic voltage
Vdd
4.5 to 5.5 V
3.5.5
Peak Current
Since the peak current (maximum current) may reach the values calculated using equation (2) when the
thermal head is driven, make sure that the allowable current for the cable material and the voltage drop
on the cables are well within the specified range.
Equation (2):
Ip:
Peak current (A)
N:
Number of dots that are driven simultaneously
Vp:
Head drive voltage (V)
RH:
Head resistance (
Ω)
N
× Vp
Ip=

RH



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