LB1673M 데이터 시트보기 (PDF) - SANYO -> Panasonic
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LB1673M Datasheet PDF : 4 Pages
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Sample Peripheral Circuit
LB1673M
Pin Assignment
Top view
Unit (resistance : Ω, capacitance : F)
Pin Description
Make the capacitance of the oscillation blocking capacitor
(C1) in the output section as small as possible and the
capacitance of C2 as large as possible.
If the capacitance of the capacitor in the output section is
large and the capacitance of CS is small, the starting votlage
may rise at low temperatures. In 3V-use, reverse rotation of
a motor would not be well, consider the resistance of Rcom.
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Pin name
GND
V
PW
DW
W
DR
Vref
START
Vsp
IN⊕
OUT
GND
RI
IN1
IN2
OUT1
OSC
COMΘ
VCC
PU
DU
U
PV
DV
Description
GND pin for the whole circuit.
V phase output pin
W phase output drive transistor base
W phase output transistor base
W phase output pin
Pin for selecting the direction of rotation (H : forward)
Reference voltage (0.5V)
High active
Speed signal (induced voltage) detection
Speed signal error amp reference input
Speed signal error amp output. The motor current is fed back.
GND pin for logic circuiit.
Pin for detecting the motor current
Θinput of internal comparator (PNP base input)
⊕ input of internal comparator (PNP base input)
Output of internal comparator (NPN open collector)
Pin for setting the starting pulse width
Pin for providing a supplementary function for the current control circuit at the time of start or selection of direction of
rotation
Power supply pin
U phase output drive transistor base
U phase output transistor base
U phase output pin
V phase output drive transisitor base
V phase output transistor base
No.3473-3/4
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