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参数资料
| 型号： | LB1889D |
| 元件分类： | 运动控制电子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 1.3 A, PDIP28 |
| 封装： | 0.500 INCH, HSDIP-28 |
| 文件页数： | 7/13页 |
| 文件大小： | 198K |
| 代理商： | LB1889D |
Continued from preceding page.
Parameter
Symbol
Conditions
min
typ
max
Unit
[TRC]
Torque ripple correction factor
TRC
At bottom and peak in Rf waveform at IO = 200 mA
(RF = 0.5
, ADJ-OPEN)
Note 2
9%
ADJ pin voltage
Vadj
2.37
2.50
2.63
V
[FG Amplifier]
FG amplifier input offset voltage
Voff (FG)
–8
+8
mV
FG amplifier input bias current
Ib (FG)
–100
nA
FG amplifier output saturation
voltage
VOsat (FG)
At internal pull-up resistor load on sink side
0.5
V
FG amplifier common-mode
input voltage
VCM (FG)
0.5
4.0
V
[Saturation]
Saturation prevention circuit
lower set voltage
VOsat (DET)
Voltage between each OUT and Rf at IO =10mA,
Rf = 0.5
,VCTL =VLIM =5V
0.175
0.25
0.325
V
[TSD]
TSD operation temperature
T-TSD
(Design target)
Note 1
180
°C
TSD temperature hysteresis
width
TSD
(Design target)
Note 1
20
°C
Note 1: No measurements are performed for any values listed in the conditions column as design targets.
Note 2: The torque ripple correction factor is calculated using the Rf voltage waveform as follows.
Truth Table & Control Function
Source
→ Sink
Hall input
FR
UV
W
1
V
→ W
HH
L
H
W
→ VL
2
U
→ W
HL
L
H
W
→ UL
3
U
→ V
HLH
H
V
→ UL
4
W
→ V
LL
H
V
→ WL
5
W
→ U
LH
H
U
→ WL
6
V
→ U
LHL
H
U
→ VL
Note: ‘‘H’’ in the FR column represents a voltage of 2.75 V or
more; ‘‘L’’ represents a voltage of 2.25 V or less.
(At VCC =5V)
Note: ‘‘H’’ in the Hall input columns represents a state in
which ‘‘+’’ has a potential which is higher by 0.01 V or
more than that of the ‘‘’’ phase inputs.
Conversely, ‘‘L’’ represents a state in which ‘‘+’’ has a
potential which is lower by 0.01 V or more than that of
the ‘‘’’ phase input.
Note: Since 180° energized system is used as the drive system, other phases than the sink and source phases are turned off.
Hall input logic settings
GND level
Correction factor =
2
× (Vp Vb)
Vp + Vb
× 100 (%)
LB1889, 1889M, 1889D
No.5131 - 3/13
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