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參數(shù)資料
| 型號： | A3976KLB |
| 廠商： | Allegro MicroSystems, Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | DUAL FULL BRIDGE PROTECTED MOTOR DRIVER |
| 中文描述： | 全橋雙電機驅動保護 |
| 文件頁數(shù)： | 1/5頁 |
| 文件大小： | 57K |
| 代理商： | A3976KLB |
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3976
The A3976 is designed to drive both windings of a bipolar stepper
motor or bidirectionally control two DC Motors. Both H-Bridges are capable
of continuous output currents of up to +/- 500 mA and operating voltages to
30V. Free wheeling, substrate isolated diodes are included for output transient
suppression when switching motors or other inductive loads. For each bridge
the PHASE input controls load current polarity by selecting the appropriate
source and sink driver pair. The ENABLE input, when held high, enables the
respective output H-bridge. When both ENABLE pins are held low the device
will enter SLEEP mode and consume less than 100
μ
A.
The 3976 is protected to ensure safe operation in harsh operating
environments and was designed specifically for automotive applications.
Protection circuitry will check for open or shorted load, motor lead short to
ground or supply, VBB overvoltage, VCC undervoltage, and thermal
shutdown. If any of these conditions are detected the outputs will be disabled
and fault information will be output to diagnostic pins FAULT1 and FAULT2.
The 3976 is supplied in a choice of two power packages, a 16-lead
plastic DIP with a copper batwing tab (suffix ‘B’), and a 24-lead plastic SOIC
with a copper batwing tab (suffix ‘LB’). In both cases, the power tab is at
ground potential and needs no electrical isolation.
FEATURES
n
30 V , ±500 mA Continuous Output Rating
n
35V Load Dump Survival
n
Output Short Circuit Protection
n
Coded Fault Diagnostic Outputs
n
Low Current Standby Mode
n
Open Load Monitor
n
Low Current Standby Mode
n
VBB Over Voltage Shutdown
n
Internal Thermal Shutdown Circuitry
n
Internal Low Parasitic Free Wheeling Diodes
n
Crossover Current Protection
4
3
2
1
8
6
7
5
12
11
10
9
21
22
23
24
17
19
18
20
13
14
15
16
ENABLE1
V
BB
PHASE1
n/c
n/c
GROUND
GROUND
n/c
OUT1A
n/c
FAULT1
OUT1B
PHASE2
n/c
V
CC
ENABLE2
FAULT2
OUT2B
OUT2A
n/c
n/c
GROUND
GROUND
n/c
A3976KLB
ABSOLUTE MAXIMUM RATINGS
at TA = +25
°
C
Operating Supply Voltage, V
BB
....................
30 V
Non-Operating Supply Voltage.....................
35 V
Output Current, I
OUT
............................
±
500 mA*
Logic Supply Voltage, V
CC
..........................
7.0 V
Fault Output Voltage ...................................
7.0 V
Logic Input Voltage Range,
V
IN
..........................
-0.3 V to V
CC
+ 0.3 V
Package Power Dissipation (TA = +25
°
C), P
D
A3976KLB..................................
2.2 W
A3976KB....................................
2.9 W
Operating Temperature Range,
T
A
..............................
-40
°
C to +125
°
C
Junction Temperature, T
J
.........................
+150
°
C
Storage Temperature Range,
T
S
...............................
-55
°
C to +150
°
C
*
Output current rating may be limited by duty cycle,
ambient temperature, and heat sinking. Under any set of
conditions, do not exceed the specified current rating or a
junction temperature of 150
°
C.
PART NUMBER
A3976KLB
A3973KB
PACKAGE
24 Lead SOIC
16 Lead DIP
R
JA
56
°
C/W
43
°
C/W
R
JT
6
°
C/W
6
°
C/W
ADVANCED DATASHEET - 02/19/99
(Subject to change without notice)
DUAL FULL BRIDGE
PROTECTED MOTOR DRIVER
相關PDF資料 |
PDF描述 |
|---|---|
| A3976 | Dual Full-Bridge Protected Motor Driver(雙全橋保護型電機驅動器（額定輸出電壓30V，恒定輸出電流±500mA）) |
| A3977XED | Microstepping DMOS Driver with Translator |
| A3977XLP | Microstepping DMOS Driver with Translator |
| A3977SED | MICROSTEPPING DMOS DRIVER WITH TRANSLATOR |
| A3977SED-T | MICROSTEPPING DMOS DRIVER WITH TRANSLATOR |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| A3977 | 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:MICROSTEPPING DMOS DRIVER WITH TRANSLATOR |
| A3977KED | 功能描述:IC MOTOR DRVR PWM DUAL 44-PLCC RoHS:否 類別:集成電路 (IC) >> PMIC - 電機和風扇控制器，驅動器 系列:- 標準包裝:1 系列:- 應用:直流電機驅動器，步進電機驅動器 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） 供應商設備封裝:24-SOP 包裝:Digi-Reel® 其它名稱:MTS62C19A-HS105DKR |
| A3977KED-T | 功能描述:IC MOTOR DRIVER PWM DUAL 44-PLCC RoHS:是 類別:集成電路 (IC) >> PMIC - 電機和風扇控制器，驅動器 系列:- 標準包裝:1 系列:- 應用:直流電機驅動器，步進電機驅動器 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） 供應商設備封裝:24-SOP 包裝:Digi-Reel® 其它名稱:MTS62C19A-HS105DKR |
| A3977KEDTR | 功能描述:IC MOTOR DRVR PWM DUAL 44-PLCC RoHS:否 類別:集成電路 (IC) >> PMIC - 電機和風扇控制器，驅動器 系列:- 標準包裝:1 系列:- 應用:直流電機驅動器，步進電機驅動器 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） 供應商設備封裝:24-SOP 包裝:Digi-Reel® 其它名稱:MTS62C19A-HS105DKR |
| A3977KEDTR-T | 功能描述:IC MOTOR DRVR PWM DUAL 44-PLCC RoHS:是 類別:集成電路 (IC) >> PMIC - 電機和風扇控制器，驅動器 系列:- 標準包裝:1 系列:- 應用:步進電機驅動器，1-2 相，2 相 評估套件:- 輸出數(shù):1 電流 - 輸出:800mA 電壓 - 負載:10 V ~ 28 V 電源電壓:4.75 V ~ 5.25 V 工作溫度:-20°C ~ 90°C 安裝類型:表面貼裝 封裝/外殼:28-SOP + 2 翼片裸露焊盤 供應商設備封裝:28-HSOPHC（15.2x7.9） 包裝:剪切帶 (CT) 其它名稱:869-1268-1 |
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