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參數(shù)資料
| 型號： | A3979 |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | Microstepping DMOS Driver with Translator |
| 中文描述： | 微步驅動器，帶有翻譯的DMOS |
| 文件頁數(shù)： | 3/14頁 |
| 文件大?。?/td> | 330K |
| 代理商： | A3979 |
3
26184.23
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
A3979
DMOS Microstepping Driver with Translator
ELECTRICAL CHARACTERISTICS
at T
A
= 25°C, V
BB
= 35 V, V
DD
= 3.0 to 5.5 V (unless otherwise noted)
Characteristics
Symbol
Test Conditions
Min.
Typ.
1
Max.
Units
Output Drivers
Load Supply Voltage Range
V
BB
Operating
During Sleep mode
V
OUT
= V
BB
V
OUT
= 0 V
Source driver, I
OUT
= –2.5 A
Source driver, I
OUT
= 2.5 A
Source diode, I
F
= –2.5 A
Sink diode, I
F
= 2.5 A
f
PWM
< 50 kHz
Operating, outputs disabled
Sleep mode
8
0
–
–
–
–
–
–
–
–
–
–
–
35
35
20
–20
0.335
0.265
1.4
1.4
8.0
6.0
20
V
V
μ
A
μ
A
Ω
Ω
V
V
mA
mA
μ
A
Output Leakage Current
2
I
DSS
<1.0
<1.0
0.28
0.22
–
–
–
–
–
Output On Resistance
R
DS(On)
Body Diode Forward Voltage
V
F
Motor Supply Current
I
BB
Control Logic
Logic Supply Voltage Range
V
DD
Operating
f
PWM
< 50 kHz
Outputs off
Sleep mode
3.0
–
–
–
5.0
–
–
–
–
–
<1.0
<1.0
5.5
12
10
20
–
V
Logic Supply Current
I
DD
mA
mA
μ
A
V
V
μ
A
μ
A
Logic Input Voltage
V
IN(1)
V
IN(0)
I
IN(1)
I
IN(0)
V
REF
I
REF
V
HOME(1)
V
HOME(0)
V
PFDH
V
PFDL
0.7
×
V
DD
–
–20
–20
0.3
×
V
DD
20
20
Logic Input Current
2
V
IN
= 0.7
×
V
DD
V
IN
= 0.3
×
V
DD
Operating
Reference Input Voltage Range
Reference Input Current
0
–
–
0
–
–
V
DD
±3
–
V
μ
A
V
V
V
V
%
%
%
μ
s
ns
μ
s
ns
HOME Output Voltage
I
HOME(1)
= –200
μ
A
I
HOME(0)
= 200
μ
A
0.7
×
V
DD
–
–
–
–
–
–
1
700
30
100
0.3
×
V
DD
–
–
±10
±5.0
±5.0
–
1200
46
800
Mixed Decay Mode Trip Point
0.6
×
V
DD
0.21
×
V
DD
–
–
–
–
950
38
475
Gain (G
m
) Error
3
E
G
V
REF
= 2 V,
Phase Current =
38.27%
V
REF
= 2 V,
Phase Current
= 70.71%
V
REF
= 2 V,
Phase Current
= 100.00%
STEP Pulse Width
Blank Time
Fixed Off-Time
Crossover Dead Time
t
W
t
BLANK
t
OFF
t
DT
R
T
= 56 k
Ω
, C
T
= 680 pF
R
T
= 56 k
Ω
, C
T
= 680 pF
Synchronous rectification enabled
Continued on the next page...
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| A3979SLP | 功能描述:IC DRIVER MICROSTEPPING 28-TSSOP 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 |
| A3979SLP-T | 功能描述:IC MOTOR DRIVER MICROSTEP 28-TSS 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 |
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