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參數(shù)資料
| 型號(hào)： | A3933 |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | THREE-PHASE POWER MOSFET CONTROLLER |
| 中文描述： | 三相功率MOSFET控制器 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 168K |
| 代理商： | A3933 |
B
4
5
6
7
8
9
2
3
P
D
A
3
1
10
R
GHC
26
27
28
29
19
23
24
25
SENSE
22
21
1
1
1
V
C
F
M
L
V
1
1
H
1
2
Dwg. PP-068
11
12
13
3
3
G
S
R
CC
GLB
SB
GHB
CB
GLA
SA
GHA
RC
PWM
BRKSEL
BRKCAP
BRAKE
DIR
H2
H3
C
F
D
2
The A3933SEQ is a three-phase MOSFET controller for use with
bipolar brushless dc motors. It drives all n-channel external power
FETs, allowing system cost savings and minimizing
r
(DS)on
power loss.
The high-side drive block is implemented with bootstrap capacitors at
each output to provide the floating positive supply for the gate drive.
The high-side circuitry also employs a unique “intelligent” FET
monitoring circuit that ensures the gate voltages are at the proper levels
before turn-on and during the ON cycle. This device is targeted for
applications with motor supplies from 12 V to 28 V.
Internal fixed off-time PWM current-control circuitry can be used to
regulate the maximum load current to a desired value. The peak load-
current limit is set by the user’s selection of an input reference voltage
and external sensing resistor. The fixed off-time pulse duration is set
by a user-selected external RC timing network.
A power-loss braking circuit brakes the motor on an under-voltage
condition. The device is configured to either coast or dynamically
brake the motor when this occurs.
The A3933SEQ is supplied in a 32-lead rectangular (9 x 7) plastic
chip carrier (quad pack) for minimum-area, surface-mount applica-
tions.
3933
FEATURES
AND
BENEFITS
I
Drives External N-Channel FETs
I
Intelligent High-Side Gate Drive
I
Selectable Coast or Dynamic Brake on Power Down
I
Adjustable Dead Time for Cross-Conduction Protection
I
Selectable Fast or Slow Current-Decay Modes
I
Internal PWM Peak Current Control
I
Reset/Coast Input
I
120
°
Hall Commutation with Internal Pullup
I
Internal 5-V Regulator
I
Low-Side Synchronous Rectification
I
Direction Control
I
PWM Speed-Control Input
I
Fault-Diagnostic Output
I
Under-Voltage Protection
THREE-PHASE POWER
MOSFET CONTROLLER
ABSOLUTE MAXIMUM RATINGS
at T
A
= 25
°
C
Supply Voltage, V
BB
.............................
28 V
(peak)..............................................
30 V
Terminal Voltage, V
CCOUT
.................
13.2 V
(peak)..............................................
15 V
Logic Input Voltage Range,
V
IN
..................
-0.3 V to V
LCAP
+ 0.3 V
Sense Voltage Range,
V
SENSE
.............................
-5 V to V
LCAP
Output Voltage Range,
V
SA
, V
SB
, V
SC
..................
-5 V to +30 V
V
GHA
, V
GHB
, V
GHC
.
-5 V to V
BB
+ 14 V
V
CA
, V
CB
, V
CC
.....................
V
SX
+ 14 V
Operating Temperature Range,
T
A
.................................
-20
°
C to +85
°
C
Junction Temperature, T
J
.................
+150
°
C
Storage Temperature Range,
T
S
...............................
-55
°
C to +150
°
C
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| A3933SEQ | THREE-PHASE POWER MOSFET CONTROLLER |
| A3935KJP | 3-PHASE POWER MOSFET CONTROLLER |
| A3935KE | 3-PHASE POWER MOSFET CONTROLLER |
| A3935KLQ | 3-PHASE POWER MOSFET CONTROLLER |
| A3936SED | DMOS THREE-PHASE PWM MOTOR DRIVER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| A3933SEQ | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:THREE-PHASE POWER MOSFET CONTROLLER |
| A3934-0000T | 制造商:3M 制造商全稱:3M Electronics 功能描述:100 x 100, PCB Two Row |
| A3934-0010T | 制造商:3M 制造商全稱:3M Electronics 功能描述:100 x 100, PCB Two Row |
| A3934-2000T | 制造商:3M 制造商全稱:3M Electronics 功能描述:100 x 100, PCB Two Row |
| A3934-2010T | 制造商:3M 制造商全稱:3M Electronics 功能描述:100 x 100, PCB Two Row |
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