M63028 データシートの表示（PDF） - Renesas Electronics
部品番号
コンポーネント説明
メーカー
M63028 Datasheet PDF : 22 Pages
| |||
M63028/029FP
Channel Select Function
Logic control
MU1
MU2
SPIN
Drive channel
Loading Slide1
SELECT 6 H
H
H
Off
On
SELECT 5 H
L
H
Off
On
SELECT 4 H
H
L
Off
On
SELECT 3 H
L
L
Off
On
SELECT 2 L
H
--
On
Off
SELECT 1 L
L
--
Off
Off
Slide2
On
On
On
On
Off
Off
Focus
On
On
On
On
Off
Off
Tracking Spindle
On
On
On
On
On
On
On
On
Off
Off
Off
Off
SPIN<REF
Curren
limit
56%
100%
--
--
--
--
SPIN>REF
Currentlim
it (Brake
select)
--
--
56%
(PWM)
(Short)
--
--
This IC has two MUTE terminal (MU1 and MU2).
It is possible to control ON / OFF of each channel and to select current limit under acceleration by external logic inputs.
It has six kinds of function for select.In case of SELECT1,the bias of all circuit becomes OFF.
Therefore,this mode is available in order to reduce the power dissipation when the waiting mode.
In case of SELECT2,the bias of other than Loading circuit becomes OFF.
Therefore,this mode is available in order to reduce the power dissipation when the active mode.
In case of SELECT3,it is possible to select the short braking to tak e the brake of Spindle motor. in case of SELECT4,it
is possible to select PWM reverse braking when in the same.
In case of SELECT5,it is possible to select the 100%current limit under acceleration.
Also,in case of SELECT6,it is possible to select the 56%current limit under acceleration.
Therefore,this mode is available in order to reduce a temperature under acceleration.
Loading channel
The loading channel is the circuit of BTL voltage drive.This circuit has
the referential input.Output swing is determined with ∆Vin X 8.Also,it is possible for this channel to use for the slide
motor ,the focus coil and the tracking coil.
The input terminal is high impedance.It is possible to do variable a gain by external resistor.
In case of one MCU port,if use three state port,it is possible for this channel to have the stop function.
VM3
LOIN+
REF
LOADING
Channel
LO+
+
Vo
-
LO-
Forward
M
Reverse
Rev.1.0, Sep.16.2003, page 10 of 21
Share Link: 