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參數(shù)資料
| 型號： | A3953S |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | FULL-BRIDGE PWM MOTOR DRIVER |
| 中文描述： | 全橋PWM電機(jī)驅(qū)動 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大?。?/td> | 230K |
| 代理商： | A3953S |
Part Number
A3953SB
A3953SLB
Package
16-Pin DIP
16-Lead SOIC
R
θ
JA
43
°
C/W
67
°
C/W
R
θ
JT
6
°
C/W
6
°
C/W
FULL-BRIDGE PWM MOTOR DRIVER
Always order by complete part number:
Note the A3953SB (DIP) and the A3953SLB
(SOIC) are electrically identical and share a
common terminal number assignment.
ABSOLUTE MAXIMUM RATINGS
Load Supply Voltage, V
BB
. . . . . . . . . .
50 V
Output Current, I
OUT
(Continuous) . . . . . . . . . . . . . .
±
1.3 A*
Logic Supply Voltage, V
CC
. . . . . . . . .
7.0 V
Logic/Reference Input Voltage Range,
V
IN
. . . . . . . . . . .
-0.3 V to V
CC
+ 0.3 V
Sense Voltage, V
SENSE
(V
CC
= 5.0 V) . . . . . . . . . . . . . . . .
1.0 V
(V
CC
= 3.3 V) . . . . . . . . . . . . . . . .
0.4 V
Package Power Dissipation,
P
D
. . . . . . . . . . . . . . . . . . . .
See Graph
Operating Temperature Range,
T
A
. . . . . . . . . . . . . . . . .
-20C to +85C
Junction Temperature, T
J
. . . . . . .
+150C
Storage Temperature Range,
T
S
. . . . . . . . . . . . . . . .
-55C to +150C
* 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 150C.
Fault conditions that produce excessive junction
temperature will activate the device’s thermal
shutdown circuitry. These conditions can be
tolerated but should be avoided.
Designed for bidirectional pulse-width modulated (PWM) current control
of inductive loads, the A3953S— is capable of continuous output currents to
±
1.3 A and operating voltages to 50 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. Internal circuit
protection includes thermal shutdown with hysteresis, transient-suppression
diodes, and crossover current protection. Special power-up sequencing is not
required.
With the ENABLE input held low, the PHASE input controls load current
polarity by selecting the appropriate source and sink driver pair. The MODE
input determines whether the PWM current-control circuitry operates in a
slow current-decay mode (only the selected source driver switching) or in a
fast current-decay mode (selected source and sink switching). A user-
selectable blanking window prevents false triggering of the PWM current-
control circuitry. With the ENABLE input held high, all output drivers are
disabled. A sleep mode is provided to reduce power consumption.
When a logic low is applied to the BRAKE input, the braking function is
enabled. This overrides ENABLE and PHASE to turn off both source drivers
and turn on both sink drivers. The brake function can be used to dynamically
brake brush dc motors.
The A3953S— is supplied in a choice of two power packages; a 16-pin
dual-in-line plastic package with copper heat-sink tabs, and a 16-lead plastic
SOIC with copper heat-sink tabs. For both package styles, the power tab is at
ground potential and needs no electrical isolation.
FEATURES
I
±
1.3 A Continuous Output Current
I
50 V Output Voltage Rating
I
3 V to 5.5 V Logic Supply Voltage
I
Internal PWM Current Control
I
Saturated Sink Drivers (Below 1 A)
I
Fast and Slow Current-Decay Modes
I
Automotive Capable
I
Sleep (Low Current
Consumption) Mode
I
Internal Transient-
Suppression Diodes
I
Internal Thermal-
Shutdown Circuitry
I
Crossover-Current
and UVLO Protection
D
2
3953
MODE
GROUND
GROUND
LOGIC
SUPPLY
PHASE
GROUND
GROUND
RC
SENSE
LOAD
SUPPLY
Dwg. PP-056
BRAKE
REF
LOAD
SUPPLY
V
CC
OUTB
OUTA
V
BB
V
BB
LOGIC
ENABLE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| A3953SB | FULL-BRIDGE PWM MOTOR DRIVER |
| A3953 | FULL-BRIDGE PWM MOTOR DRIVER |
| A3953SLB | FULL-BRIDGE PWM MOTOR DRIVER |
| A3961S | DUAL FULL-BRIDGE PWM MOTOR DRIVER |
| A3961SB | DUAL FULL-BRIDGE PWM MOTOR DRIVER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| A3953SB | 功能描述:IC MOTOR DRIVER PWM FULL 16-DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 電機(jī)和風(fēng)扇控制器，驅(qū)動器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:直流電機(jī)驅(qū)動器，步進(jìn)電機(jī)驅(qū)動器 評估套件:- 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:MTS62C19A-HS105DKR |
| A3953SB-T | 功能描述:IC MOTOR DRIVER PWM FULL 16-DIP RoHS:是 類別:集成電路 (IC) >> PMIC - 電機(jī)和風(fēng)扇控制器，驅(qū)動器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:直流電機(jī)驅(qū)動器，步進(jìn)電機(jī)驅(qū)動器 評估套件:- 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:MTS62C19A-HS105DKR |
| A3953SB-T | 制造商:Allegro MicroSystems 功能描述:Driver IC Number of Drivers:1 |
| A3953SLB | 功能描述:IC MOTOR DRIVER PWM FULL 16-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 電機(jī)和風(fēng)扇控制器，驅(qū)動器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:直流電機(jī)驅(qū)動器，步進(jìn)電機(jī)驅(qū)動器 評估套件:- 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:MTS62C19A-HS105DKR |
| A3953SLB-T | 功能描述:IC MOTOR DRIVER PWM FULL 16-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 電機(jī)和風(fēng)扇控制器，驅(qū)動器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:直流電機(jī)驅(qū)動器，步進(jìn)電機(jī)驅(qū)動器 評估套件:- 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:MTS62C19A-HS105DKR |
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