UPD16873A Просмотр технического описания (PDF) - NEC => Renesas Technology
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UPD16873A Datasheet PDF : 16 Pages
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µPD16873/A/B/C
FUNCTION OPERATION TABLE
(1) ST/SP (start/stop) function
ON/OFF of the movement can be set up under the condition which makes oscillation circuit work. Setting is done
with ST/SP terminal.
When ST/SP terminal is high level, it becomes active (operating) condition. And, when ST/SP terminal is low
level, it becomes stop condition. It becomes short brake condition under the stop condition.
• ST/SP = “H”
Input signal (Hall amplifier output)
CMP 0
CMP 1
CMP 2
PWM
H
H
L
H
H
H
L
L
H
L
L
H
H
L
L
L
H
L
H
H
H
L
H
L
L
L
H
H
L
L
H
L
L
H
H
H
L
H
H
L
L
H
L
H
L
H
L
L
Operation mode
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
exciting phase
W→V
W→U
V→U
V→W
U→W
U→V
In addition, the movement in OFF varies in the product.
Loop is composed through parasitic diode of the high-side MOSFET. (µPD16873/µPD16873A)
Loop is composed through channel of the high-side MOSFET. (µPD16873B/µPD16873C)
• ST/SP = “L”
Input signal (Hall amplifier output)
CMP 0
CMP 1
CMP 2
PWM
−
−
−
−
Operation mode
Stop (short brake)
It becomes short brake condition. (High side switch is “ON” and low side switch is “OFF”)
8
Data Sheet S13870EJ1V0DS00
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