音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

A3979SLP-T Datasheet

  • A3979SLP-T

  • Microstepping DMOS Driver with Translator

  • 14頁

  • ALLEGRO   ALLEGRO

掃碼查看芯片數(shù)據(jù)手冊

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

A3979
Microstepping DMOS Driver with Translator
Package LP, 28-pin TSSOP
with Exposed Thermal Pad
SENSE1 1
HOME 2
DIR 3
OUT1A 4
PFD 5
RC1 6
AGND 7
REF 8
RC2 9
VDD 10
OUT2A 11
MS2 12
MS1 13
SENSE2 14
AGND
PWM
Timer
Charge
Pump
28 VBB1
27 SLEEP
26 ENABLE
25 OUT1B
24 CP2
Translator
and
Control
Logic
23 CP1
22 VCP
21 PGND
Reg
20 VREG
19 STEP
18 OUT2B
17 RESET
16 SR
15 VBB2
The A3979 is a complete microstepping motor driver with built-in
translator, designed as a pin-compatible replacement for the successful
A3977, with enhanced microstepping (
1
/
16
step) precision. It is designed
to operate bipolar stepper motors in full-, half-, quarter-, and sixteenth-
step modes, with an output drive capacity of up to 35 V and 鹵2.5 A. The
A3979 includes a fixed off-time current regulator that has the ability
to operate in Slow, Fast, or Mixed decay modes. This current-decay
control scheme results in reduced audible motor noise, increased step
accuracy, and reduced power dissipation.
The translator is the key to the easy implementation of the A3979. It
allows the simple input of one pulse on the STEP pin to drive the motor
one microstep, which can be either a full step, half, quarter, or sixteenth,
depending on the setting of the MS1 and MS2 logic inputs. There are no
phase-sequence tables, high-frequency control lines, or complex inter-
faces to program. The A3979 interface is an ideal fit for applications
where a complex microprocessor is unavailable or is overburdened.
Internal synchronous-rectification control circuitry is provided to
improve power dissipation during PWM operation. Internal circuit
protection includes: thermal shutdown with hysteresis, UVLO (under-
voltage lockout), and crossover-current protection. Special power-on
sequencing is not required.
The A3979 is supplied in a low-profile (maximum height
鈮?/div>
1.20 mm),
28-pin TSSOP with exposed thermal pad. The package is available in a
lead (Pb) free version, with 100% matte tin leadframe plating.
梅8
and
PGND
must be
connected together externally.
Approximate Scale 1:1
ABSOLUTE MAXIMUM RATINGS
Load Supply Voltage,V
BB
...................................35
V
Output Current, I
OUT
......................................
鹵2.5 A
*
Logic Supply Voltage, V
DD
...............................7.0
V
Logic Input Voltage Range, V
IN
t
W
> 30 ns........................
鈥?.3 V to V
DD
+ 0.3 V
t
W
< 30 ns..............................
鈥? V to V
DD
+ 1 V
Sense Voltage, V
SENSE
.......................................0.5
V
Reference Voltage, V
REF
......................................V
DD
Package Power Dissipation, P
D
.................See
page 5
Operating Temperature Range
Ambient, T
A
, Range S ...................
鈥?0擄C to 85擄C
Junction Temperature, T
J(MAX)
.....................150擄C
Storage Temperature, T
S
....................
鈥?5擄C to 150擄C
*
Output current rating may be limited by duty cycle,
FEATURES
鹵2.5 A, 35 V output rating
Low R
DS(On)
outputs: 0.28
惟
source, 0.22
惟
sink, typical
Automatic current decay mode detection/selection
3.0 to 5.5 V logic supply voltage range
Slow, Fast or Mixed current decay modes
Home output
Synchronous rectification for low power dissipation
Internal UVLO and thermal shutdown circuitry
Crossover-current protection
ambient temperature, and heat sinking. Under any set of
conditions, do not exceed the specified current rating or a
junction temperature of 150擄C.
Use the following complete part number when ordering:
Part Number
A3979SLP
A3979SLP-T
Pb-free
鈥?/div>
Yes
Ambient, T
A
(擄C)
鈥?0 to 85
26184.23

A3979SLP-T 產(chǎn)品屬性

  • 50

  • 集成電路 (IC)

  • PMIC - 電機和風(fēng)扇控制器，驅(qū)動器

  • -

  • 步進電機驅(qū)動器

  • -

  • 1

  • ±2.5A

  • 8 V ~ 35 V

  • 3 V ~ 5.5 V

  • -20°C ~ 85°C

  • 表面貼裝

  • 28-SOIC（0.173"，4.40mm 寬）裸露焊盤

  • 28-TSSOP 裸露焊盤

  • 管件

  • 620-1080

A3979SLP-T相關(guān)型號PDF文件下載

  • 型號
    版本
    描述
    廠商
    下載
  • 英文版
    DUAL DMOS FULL-BRIDGE MICROSTEPPING PWM MOTOR DRIVER
    ALLEGRO
  • 英文版
    DUAL DMOS FULL-BRIDGE MICROSTEPPING PWM MOTOR DRIVER
    ALLEGRO [A...
  • 英文版
    DMOS DUAL FULL-BRIDGE PWM MOTOR DRIVER
    ALLEGRO
  • 英文版
    DMOS DUAL FULL-BRIDGE PWM MOTOR DRIVER
    ALLEGRO [A...
  • 英文版
    DUAL FULL BRIDGE PROTECTED MOTOR DRIVER
    ETC
  • 英文版
    DUAL FULL BRIDGE PROTECTED MOTOR DRIVER
    allegromicro
  • 英文版
    Microstepping DMOS Driver with Translator
    ALLEGRO
  • 英文版
    Microstepping DMOS Driver with Translator
    ALLEGRO [A...
  • 英文版
    DUAL DMOS FULL-BRIDGE MICROSTEPPING PWM MOTOR DRIVER
    ALLEGRO
  • 英文版
    DUAL DMOS FULL-BRIDGE MICROSTEPPING PWM MOTOR DRIVER
    ALLEGRO [A...
  • 英文版
    DUAL FULL BRIDGE PROTECTED MOTOR DRIVER
    ALLEGRO
  • 英文版
    DUAL FULL BRIDGE PROTECTED MOTOR DRIVER
    ALLEGRO [A...
  • 英文版
    DUAL DMOS FULL-BRIDGE MICROSTEPPING PWM MOTOR DRIVER
    ALLEGRO
  • 英文版
    DUAL DMOS FULL-BRIDGE MICROSTEPPING PWM MOTOR DRIVER
    ALLEGRO [A...
  • 英文版
    DUAL DMOS FULL-BRIDGE DRIVER
    ALLEGRO
  • 英文版
    DUAL DMOS FULL-BRIDGE DRIVER
    ALLEGRO [A...
  • 英文版
    DUAL DMOS FULL-BRIDGE MICROSTEPPING PWM MOTOR DRIVER
    ALLEGRO
  • 英文版
    DUAL DMOS FULL-BRIDGE MICROSTEPPING PWM MOTOR DRIVER
    ALLEGRO [A...
  • 英文版
    DMOS DUAL FULL-BRIDGE PWM MOTOR DRIVER
    ALLEGRO
  • 英文版
    DMOS DUAL FULL-BRIDGE PWM MOTOR DRIVER
    ALLEGRO [A...

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時間周一至周五
9:00-17:30

關(guān)注官方微信號，
第一時間獲取資訊。

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫提出的寶貴意見，您的參與是維庫提升服務(wù)的動力！意見一經(jīng)采納，將有感恩紅包奉上哦！