- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄378256 > 8932-A (Allegro MicroSystems, Inc.) VOICE-COIL MOTOR DRIVER PDF資料下載
參數(shù)資料
| 型號： | 8932-A |
| 廠商： | Allegro MicroSystems, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | VOICE-COIL MOTOR DRIVER |
| 中文描述： | 音圈電機(jī)驅(qū)動 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 164K |
| 代理商： | 8932-A |
Providing control and drive of the voice-coil motor used for head
positioning in 5 V disk drive applications, the second-generation
A8932CLWA is a full-bridge driver that can be configured so that its
output current is a direct function of an externally applied control
voltage or current. This linear current control function is supplemented
by additional circuitry to protect the heads and the data disk during
system failure or normal system shutdown.
The two
±
500 mA MOS driver outputs provide very low saturation
voltage and minimal power dissipation. Additional headroom is
achieved by the sense-FET structure eliminating the need for an exter-
nal current-sense resistor. Internal circuitry can be configured to
provide closed-loop velocity control of the actuator by utilizing the
generated back-EMF of the voice-coil motor. Thermal protection and
under-voltage lockout disables the system in a controlled sequence if a
fault condition occurs.
VOICE-COIL MOTOR DRIVER
FEATURES
I
Class-B, 2
r
DS(on)
at 500 mA Output
I
Lossless Current Sensing
I
Zero Current-Loop Deadband
I
High Transconductance Bandwidth
I
User-Adjustable Transconductance Gain
I
Digital Transconductance Gain Switch (4:1 Ratio)
I
5 Volt Monitor with Selectable UV Trip Point
I
Retract Circuitry Functional to 0 Volts
I
Sleep Mode Function
I
Internal Back-EMF Velocity Loop Option
I
Internal Thermal Shutdown Circuitry
D
2
Always order by complete part number, e.g.,
A8932CLWA
.
ABSOLUTE MAXIMUM RATINGS
Supply Voltages, V
CC
and V
DD
............
6.0 V
Output Current, I
OUT
(peak)...........
±
600 mA
(continuous) ...........................
±
500 mA
Analog Input Voltage Range,
V
IN
....................................
-0.3 V to V
CC
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
°
C to +70
°
C
Junction Temperature, T
J
...............
+150
°
C
Storage Temperature Range,
T
S
................................ -
55
°
C to +150
°
C
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.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
RET SET
LOAD
SUPPLY
ACT
REFERENCE
H GAIN
PWR OFF
RET REF
GROUND
SWITCH
OUT
SIGNAL
SUPPLY
OUT
SW
IN
N
R
OUT P
UV
SET
V
BEMF
V
FLT
CC
V
V
SENS
V
LOAD
V
SENS FB
SGND
N
OUT
P
OUT
N
V
DD
SGND
P
ACT
FB
RETRACT
FAULT
MP
RESET
2 V
–
+
–
+
+
–
–
+
V
REF
PROTECT
CIRCUIT
PROTECT
CIRCUIT
8932-A
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 8936 | VOICE COIL MOTOR DRIVER |
| 8946 | Connector,D-Shell,Cable Mnt,RECEPT,79 Contacts,PIN,0.075 Pitch,#4-40 |
| 8958 | 2DC-79SA183F172 |
| 8980 | SUPERSERVO SPINDLE & VOICE-COIL ACTUATION MANAGER/DRIVER |
| 8983 | SPINDLE & VOICE-COIL ACTUATION MANAGER/DRIVER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 8933 | 制造商:Thomas & Betts 功能描述:RECEPT MDGT HUB TYPETYPE |
| 8933 JB | 制造商:JET TEC 功能描述:INK CARTRIDGE EQUIV T027401 |
| 8933.2 | 功能描述:工業(yè)繼電器 RM1G1, 1 Channel RelayModule, 24VDC, SPDT RoHS:否 制造商:TE Connectivity / Kilovac 觸點(diǎn)形式:1 Form A (SPST-NO) 觸點(diǎn)電流額定值: 線圈電壓:9 VDC to 36 VDC 線圈電阻:38 Ohms 線圈電流: 切換電壓: 安裝風(fēng)格:Panel 觸點(diǎn)材料:Silver Palladium |
| 8933.3 | 功能描述:工業(yè)繼電器 RM1G2, 2 channel RelayModule, SPDT, 24VDC RoHS:否 制造商:TE Connectivity / Kilovac 觸點(diǎn)形式:1 Form A (SPST-NO) 觸點(diǎn)電流額定值: 線圈電壓:9 VDC to 36 VDC 線圈電阻:38 Ohms 線圈電流: 切換電壓: 安裝風(fēng)格:Panel 觸點(diǎn)材料:Silver Palladium |
| 8933.5 | 功能描述:工業(yè)繼電器 RC1G1,1 Channel Relay Mod24VDC, SPDT,Carrier Only RoHS:否 制造商:TE Connectivity / Kilovac 觸點(diǎn)形式:1 Form A (SPST-NO) 觸點(diǎn)電流額定值: 線圈電壓:9 VDC to 36 VDC 線圈電阻:38 Ohms 線圈電流: 切換電壓: 安裝風(fēng)格:Panel 觸點(diǎn)材料:Silver Palladium |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。