參數(shù)資料
型號(hào)： A3949
廠商： Allegro MicroSystems, Inc.
元件分類(lèi)： 基準(zhǔn)電壓源/電流源
英文描述： DMOS Full-Bridge Motor Driver
中文描述： DMOS全橋式電動(dòng)機(jī)驅(qū)動(dòng)器
文件頁(yè)數(shù)： 1/8頁(yè)
文件大?。?/td> 357K
代理商： A3949
D
2
A3949
DMOS Full-Bridge Motor Driver
Designed for PWM (pulse width modulated) control of dc motors, the
A3949 is capable of peak output currents to ±2.8 A and operating volt-
ages to 36 V.
PHASE and ENABLE input terminals are provided for use in control-
ling the speed and direction of a dc motor with externally applied PWM
control signals. Internal synchronous recti
fi
cation control circuitry is
provided to reduce power dissipation during PWM operation.
Internal circuit protection includes thermal shutdown with hysteresis,
undervoltage monitoring of V
BB
and V
CP
, and crossover current protec-
tion.
The A3949 is supplied in a choice of two power packages, a 16-pin
plastic SOIC with a copper batwing tab (part number suf
fi
x
LB
), and
a low pro
fi
le (1.1mm) 16-pin TSSOP (suf
fi
x
LP
) with exposed power
tab. Both packages are available in a lead-free version (100% matte tin
leadframe).
Single supply operation
Very small outline package
Low R
outputs
Sleep function
Internal UVLO
Crossover current protection
Thermal shutdown protection
Use the following complete part numbers when ordering:
AB SO LUTE MAX MUM RAT NGS
Part Number
A3949SLB
A3949SLB-T
A3949SLP
A3949SLP-T
Package
16-pin, SOIC
16-pin, SOIC
16-pin, TSSOP
16-pin, TSSOP
Description
Copper batwing tab
Copper batwing tab; Lead-free
Exposed thermal pad
Exposed thermal pad; Lead-free
Load Supply Voltage
V
BB
...............................................................
36 V
V
BB
(Peak < 2 μs)........................................
38 V
Output Current, I
OUT
(Repetitive)
1
....................
±2.8 A
Sense Voltage, V
SENSE
.........................................
0.5 V
Logic Input Voltage, V
IN
.....................
–0.3 V to 7 V
Package Power Dissipation, P
D
A3949SLB
2
.........................................
52oC / W
A3949SLP
3
..........................................
34oC / W
Operating Temperature Range
Ambient Temperature, T
A
.............
–20°C to +85°C
Junction Temperature, T
J
..................
+150°C Max.
Storage Temperature, T
S
..........
–55°C to +150°C
1
Output current rating may be limited by duty cycle,
ambient temperature, and heat sinking. Under any set of
conditions,
DO NOT
exceed the speci
fi
ed I
OUT
or T
J
.
2
Measured on a typical two-sided PCB with 2 in.
2
copper
ground plane.
3
Measured on a JEDEC-standard "High-K" 4-layer PCB.
FEATURES
A3949SLB SOIC
A3949SLP TSSOP
3
4
5
6
7
8
2
1
14
13
12
11
10
9
15
16
N/C
MODE
PHASE
GND
SLEEP
ENABLE
OUTA
SENSE
N/C
VREG
VCP
GND
CP2
CP1
OUTB
VBB
3
4
5
6
7
8
2
1
14
13
12
11
10
9
15
16
N/C
MODE
PHASE
GND
SLEEP
ENABLE
OUTA
SENSE
N/C
VREG
VCP
GND
CP2
CP1
OUTB
VBB
Scale 1:1
Scale 1:1
相關(guān)PDF資料
PDF描述
A3949SLB DMOS Full-Bridge Motor Driver
A3949SLB-T DMOS Full-Bridge Motor Driver
A3949SLP DMOS Full-Bridge Motor Driver
A3949SLP-T DMOS Full-Bridge Motor Driver
A3950 DMOS Full-Bridge Motor Driver
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
A3949_04 制造商:ALLEGRO 制造商全稱(chēng):Allegro MicroSystems 功能描述:DMOS Full-Bridge Motor Driver
A3949SLB 功能描述:IC MOTOR DRIVER PWM FULL 16-SOIC RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 電機(jī)和風(fēng)扇控制器，驅(qū)動(dòng)器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:直流電機(jī)驅(qū)動(dòng)器，步進(jìn)電機(jī)驅(qū)動(dòng)器 評(píng)估套件:- 輸出數(shù):1 或 2 電流 - 輸出:750mA 電壓 - 負(fù)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(lèi)型:表面貼裝 封裝/外殼:24-BFSOP（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOP 包裝:Digi-Reel® 其它名稱(chēng):MTS62C19A-HS105DKR
A3949SLB-T 功能描述:IC MOTOR DRIVER PWM FULL 16-SOIC RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 電機(jī)和風(fēng)扇控制器，驅(qū)動(dòng)器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:直流電機(jī)驅(qū)動(dòng)器，步進(jìn)電機(jī)驅(qū)動(dòng)器 評(píng)估套件:- 輸出數(shù):1 或 2 電流 - 輸出:750mA 電壓 - 負(fù)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(lèi)型:表面貼裝 封裝/外殼:24-BFSOP（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOP 包裝:Digi-Reel® 其它名稱(chēng):MTS62C19A-HS105DKR
A3949SLB-T 制造商:Allegro MicroSystems 功能描述:Driver IC
A3949SLBTR 功能描述:IC MOTOR DRIVER PWM FULL 16-SOIC RoHS:否 類(lèi)別:集成電路 (IC) >> PMIC - 電機(jī)和風(fēng)扇控制器，驅(qū)動(dòng)器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:直流電機(jī)驅(qū)動(dòng)器，步進(jìn)電機(jī)驅(qū)動(dòng)器 評(píng)估套件:- 輸出數(shù):1 或 2 電流 - 輸出:750mA 電壓 - 負(fù)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(lèi)型:表面貼裝 封裝/外殼:24-BFSOP（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOP 包裝:Digi-Reel® 其它名稱(chēng):MTS62C19A-HS105DKR
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