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參數(shù)資料
| 型號： | A3971SLB |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | Dual DMOS Full-Bridge PWM Driver(用于直流電機，步進電機的雙DMOS全橋脈寬調(diào)制驅(qū)動器（工作電壓50V，每個橋負載電流容量±2.5A)) |
| 中文描述： | 雙DMOS全橋PWM驅(qū)動器（用于直流電機，步進電機的雙的DMOS全橋脈寬調(diào)制驅(qū)動器（工作電壓50V的每個橋負載電流容量±包2.5a）） |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 141K |
| 代理商： | A3971SLB |
D
2
3971
DUAL DMOS
FULL-BRIDGE DRIVER
Designed to interface between external PWM control logic and
inductive loads such as relays, solenoids, dc motors, or stepper motors,
each full bridge can operate with output currents to
±
2.5 A and operating
voltages to 50 V.
Low r
DS(on)
DMOS output drivers provide low power dissipation
during PWM operation. Internal charge pump circuitry is used to create
a boosted voltage to fully enhance the high-side DMOS switches.
Three TTL-compatible logic-input terminals per bridge allow flex-
ibility in configuring PWM control.
Internal circuit protection includes thermal shutdown with hysteresis,
and crossover-current protection. Special power -up sequencing is not
required.
The A3971SLB is supplied in a 24-lead plastic SOIC with a copper
batwing tab. The power tab is at ground potential and needs no electri-
cal isolation.
FEATURES
I
±
2.5 A Load Current Capability per Bridge
I
Parallel Outputs for 5 A Load-Current Capability
I
Low r
DS(on)
Outputs
Typically 325 m
source, 175 m
sink
I
Synchronous Rectification via Control Logic
I
Internal Undervoltage Monitor
I
Crossover-Current Protection
I
Source Connections for External Current Sensing
I
Thermal Shutdown Circuitry
ADVANCE INFORMATION
(Subject to change without notice)
May 2, 2000
ABSOLUTE MAXIMUM RATINGS
at TA = +25
°
C
Load Supply Voltage, V
BB
................
50 V
Output Current, I
Transient (<500 ns) ...................
±
5 A
Logic Supply Voltage,
V
............................................
7.0 V
Sense Voltage, V
......................
0.5 V
Logic Input Voltage Range,
V
..................
-0.3 V to V
+ 0.3 V
High-Side Gate Voltage ...........
V
BB
+ 8 V
Package Power Dissipation,
P
.............................................
2.2 W
Operating Temperature Range,
T
.............................
-20
°
C to +85
°
C
Junction Temperature, T
.............
+150
°
C
Storage Temperature Range,
T
S
...........................
-55
°
C to +150
°
C
Output duty cycle, ambient temperature, and
heat sinking may limit current rating. Under
any set of conditions, do not exceed the
specified current rating or a junction tempera-
ture of 150
°
C.
Always order by complete part number:
A3971SLB
.
L
L
CHARGE PUMP
24
23
22
21
20
19
18
17
16
15
14
13
GROUND
GROUND
PWM
2
S
20
OUT
2A
LOAD
SUPPLY
2
SENSE
2
OUT
2B
S
21
V
CP
CP2
V
DD
Dwg. PP-069-2
1
2
3
4
5
6
7
8
9
12
11
10
9
GROUND
GROUND
NO
CONNECTION
LOGIC
GROUND
S
10
OUT
1A
OUT
1B
S
11
PWM
1
CP1
SENSE
1
LOAD
SUPPLY
1
NC
LOGIC
SUPPLY
V
BB2
V
BB1
相關(guān)PDF資料 |
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| A3972 | MODULE RABBITCORE RCM3400 |
| A3972SB | MODULE RABBITCORE RCM3410 |
| A3973SB | DUAL DMOS FULL-BRIDGE MICROSTEPPING PWM MOTOR DRIVER |
| A3973KB | DUAL FULL BRIDGE PROTECTED MOTOR DRIVER |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| A3972 | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:DUAL DMOS FULL-BRIDGE MICROSTEPPING PWM MOTOR DRIVER |
| A3972SB | 功能描述:IC MOTOR DRIVER PWM DUAL 24-DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 電機和風扇控制器，驅(qū)動器 系列:- 標準包裝:1 系列:- 應用:直流電機驅(qū)動器，步進電機驅(qū)動器 評估套件:- 輸出數(shù):1 或 2 電流 - 輸出:750mA 電壓 - 負載:10 V ~ 40 V 電源電壓:4.5 V ~ 5.5 V 工作溫度:-20°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-BFSOP（0.295"，7.50mm 寬） 供應商設(shè)備封裝:24-SOP 包裝:Digi-Reel® 其它名稱:MTS62C19A-HS105DKR |
| A3972SB-T | 功能描述:IC MOTOR DRIVER PWM DUAL 24-DIP RoHS:是 類別:集成電路 (IC) >> PMIC - 電機和風扇控制器，驅(qū)動器 系列:- 標準包裝:1 系列:- 應用:直流電機驅(qū)動器，步進電機驅(qū)動器 評估套件:- 輸出數(shù):1 或 2 電流 - 輸出:750mA 電壓 - 負載:10 V ~ 40 V 電源電壓:4.5 V ~ 5.5 V 工作溫度:-20°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-BFSOP（0.295"，7.50mm 寬） 供應商設(shè)備封裝:24-SOP 包裝:Digi-Reel® 其它名稱:MTS62C19A-HS105DKR |
| A3973KB | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:DUAL FULL BRIDGE PROTECTED MOTOR DRIVER |
| A3973SB | 功能描述:IC MOTOR DRIVER PWM DUAL 24-DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 電機和風扇控制器，驅(qū)動器 系列:- 標準包裝:1 系列:- 應用:直流電機驅(qū)動器，步進電機驅(qū)動器 評估套件:- 輸出數(shù):1 或 2 電流 - 輸出:750mA 電壓 - 負載:10 V ~ 40 V 電源電壓:4.5 V ~ 5.5 V 工作溫度:-20°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-BFSOP（0.295"，7.50mm 寬） 供應商設(shè)備封裝:24-SOP 包裝:Digi-Reel® 其它名稱:MTS62C19A-HS105DKR |
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