音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

8925 Datasheet

  • 8925

  • 3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER WITH LINEAR CUR...

  • 89.34KB

  • 8頁(yè)

  • ALLEGRO   ALLEGRO

掃碼查看芯片數(shù)據(jù)手冊(cè)

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

8925
3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER
WITH LINEAR CURRENT CONTROL
AND POWER DMOS OUTPUTS
8925
Data Sheet
26301.30
3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER
WITH LINEAR CURRENT CONTROL
AND POWER DMOS OUTPUTS
LOGIC GROUND
LOGIC SUPPLY
POWER
GROUND
7
8
9
39
38
37
36
35
34
33
32
31
POWER
GROUND
SUB
V
BB
POWER
GROUND
ABSOLUTE MAXIMUM RATINGS
AT T
A
= +25
擄
C
Load Supply Voltage, V
BB
.....................
14 V
Output Current, I
OUT
..........................
鹵
4.0 A
Logic Supply Voltage, V
CC
.....................
14 V
Logic Input Voltage Range,
V
IN
................................
-0.3 V to +6.0 V
Package Power Dissipation,
P
D
.........................................
See Graph
Operating Temperature Range,
T
A
.....................................
0
擄
C to +70
擄
C
Junction Temperature, T
J
...............
+150
擄
C鈥?/div>
Storage Temperature Range,
T
S
................................
-55
擄
C to +150
擄
C
鈥?Fault conditions that produce excessive
junction temperature will activate device thermal
shutdown circuitry. These conditions can be
tolerated, but should be avoided.
Output current rating may be restricted to a value
determined by system concerns and factors.
These include: system duty cycle and timing,
ambient temperature, and use of any heatsinking
and/or forced cooling. For reliable operation, the
specified maximum junction temperature should
not be exceeded.
T
C
U Y
D L
O N
R O
P E
D C
E N
U E
IN ER
T F
N E
O R
C R
IS O
D F
鈥?/div>
10
11
12
13
14
15
16
17
CHARGE PUMPS
AND CONTROL
SEQUENCING
CIRCUITRY
The A8925CEB is a DMOS three-phase brushless dc motor con-
troller/driver designed for use in Winchester disk drives and other data
storage applications. The power output stages are capable of
鹵4
A
output currents and have DMOS power outputs with less than 0.25
鈩?/div>
r
DS(on)
for low power dissipation. Intrinsic ground clamp and flyback
diodes protect the output drivers when switching inductive loads.
Thermal shutdown circuitry is provided to protect the device from ex-
cessive junction temperature.
A transconductance amplifier is used to linearly regulate the load
current and control motor speed. Internal current-sensing circuitry
eliminates the need for external sense resistors. Analog and digital
control circuitry provide complete sequencing of the output drivers as
well as providing brake, disable, and tachometer functions. A FAULT
output flag indicates the presence of an under-voltage condition on the
12 V supply, excessive junction temperature, or an invalid Hall input
combination. The A8925CEB鈥檚 commutation logic is compatible with
motors that have digital Hall-effect sensors with 120擄 of electrical
separation. Internal charge pump circuitry is provided to drive the N-
channel DMOS source drivers to their required gate voltages.
The A8925CEB is provided in a 44-lead PLCC power package for
surface-mount applications. The copper batwing provides for maxi-
mum allowable package power dissipation in the smallest possible
construction.
ENABLE
V
CC
40
FAULT
43
TACH
4
OUT
C
44
POLE
1
OUTB
42
OUT
A
NC
41
NC
6
5
3
2
30
+
29
POWER
GROUND
SUB
25
26
27
19
20
18
21
22
23
COMP.
1
24
NC
2
ERROR AMP
REFERENCE
LOAD SUPPLY
VSENSE
BRAKE
NC
H
H
H
3
28
Dwg. PP-034
FEATURES
s
s
s
s
s
s
s
s
s
DMOS Outputs
Low r
DS(on)
- 0.25
鈩?/div>
Maximum
Linear Current Control
Internal Commutation Circuitry
Internal Current Sensing
Thermal Shutdown Circuitry
Under Voltage Detection Circuitry
Fault Output Flag
Power Surface-Mount Package
Always order by complete part number:
A8925CEB
.

8925 產(chǎn)品屬性

  • 100

  • 光電元件

  • LED - 墊片，支座

  • -

  • 黑

  • 0.650"（16.51mm）

  • 三引線

  • PVC

  • 8925K

8925相關(guān)型號(hào)PDF文件下載

  • 型號(hào)
    版本
    描述
    廠商
    下載
  • 英文版
    3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER WITH LINEAR CUR...
    ALLEGRO
  • 英文版
    3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER WITH LINEAR CUR...
    ALLEGRO [A...
  • 英文版
    50V CERAMIC DISC
    NTE [NTE E...
  • 英文版
    FUSE CARTRIDGE 15A 600VAC 5AG

您可能感興趣的PDF文件資料

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時(shí)間周一至周五
9:00-17:30

關(guān)注官方微信號(hào)，
第一時(shí)間獲取資訊。

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫(kù)提出的寶貴意見，您的參與是維庫(kù)提升服務(wù)的動(dòng)力！意見一經(jīng)采納，將有感恩紅包奉上哦！