UPD168102 Просмотр технического описания (PDF) - NEC => Renesas Technology
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UPD168102 Datasheet PDF : 16 Pages
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µPD168102
FUNCTION OPERATION TABLE
The logic of each channel is shown in the table below.
I/O Truth Table for Channels 1 to 6
Input
Output
VIsel
IN1, 3, 5,
7, 9, 11
IN2, 4, 6,
8, 10, 12
OUTA
OUTB
L
L
L
Z
Z
L
H
L
H
H
L
H
L
H
H
L
L
H
L
L
Z
Z
L
H
L
H
H
L
H
L
H
H
L
L
H: High level, L: Low level, Z: High impedance
Output Status
Stopped (output open, standby)
Reverse (OUTB → OUTA)
Forward (OUTA → OUTB)
Stopped (short brake)
Stopped (output open)
Reverse (OUTB → OUTA)
Forward (OUTA → OUTB)
Stopped (short brake)
Operating Mode of
Ch 5 and Ch 6
Voltage control
output
Constant current
chopping
Constant current chopping is possible for channels 5 and 6.
When VIsel is set to high level, if the voltage becomes higher than the reference voltage (external input) and the
current becomes higher than the current set by the feedback resistor, the output can be forcibly chopped.
When VIsel is set to low level, channels 5 and 6 function in the same way as channels 1 to 4.
Standby function
The µPD168102 realizes a standby function by combining the input signals.
By setting all the control input signals of channels 1 to 6 to low level, a standby mode in which the current
consumption of the internal circuit is suppressed is entered. Note that the output status is high impedance
(output open).
BRKsel pin function
By using the logic of BRKsel, whether the function that prevents the motor power supply rising in the Hi-Z output
status (input L, L) is enabled or disabled can be selected. Refer to the truth table below.
BRKsel Truth Table
BRKsel
L
H
Function
Hi-Z status
Regenerates output current using an internal channel. An internal timer is incorporated, through which the
regeneration period is set for approx. 1 ms, and then the Hi-Z status is entered.
Data Sheet S15301EJ1V0DS
5
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