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| 型号： | A3992SLPTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 1/13页 |
| 文件大小： | 0K |
| 描述： | IC MOTOR DRVR PWM DUAL 24-TSSOP |
| 标准包装： | 1 |
| 应用： | PWM 电机驱动器，步进电机驱动器 |
| 输出数： | 1 |
| 电流 - 输出： | ±1.5A |
| 电压 - 负载： | 15 V ~ 50 V |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -20°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-TSSOP（0.173"，4.40mm）裸露焊盘 |
| 供应商设备封装： | 24-TSSOP 裸露焊盘 |
| 包装： | 标准包装 |
| 其它名称： | 620-1170-6 |
A3992
DMOS Dual Full-Bridge Microstepping PWM Motor Driver
Features and Benefits
Description
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±1.5 A, 50 V continuous output rating
Low R DS(on) DMOS output drivers
Short-to-ground protection
Shorted load protection
Optimized microstepping via six bit linear DACs
Programmable mixed, fast, and slow current decay modes
4 MHz internal oscillator for digital timing
Serial interface controls chip functions
Synchronous rectification for low power dissipation
Internal UVLO and thermal shutdown circuitry
Crossover-current protection
Inputs compatible with 5 or 3.3 V control signals
Sleep and Idle modes
Designed for pulse width modulated (PWM) current control of
bipolar microstepped stepper motors, the A3992 is capable of
continuous output currents to ±1.5 A and operating voltages to
50 V. Internal fixed off-time PWM current control timing circuitry
can be programmed via the serial interface to operate in slow, fast,
or mixed decay modes.
The desired load current level is set via the serial port with two
six bit linear DACs in conjunction with a reference voltage. The
six bits of control allow maximum flexibility in torque control for
a variety of step methods, from microstepping to full step drive.
Load current is set in 1.56% increments of the maximum value.
Synchronous rectification circuitry allows the load current to flow
through the low R DS(on) of the DMOS output driver during current
decay. This feature eliminates the need for external clamp diodes
Packages
24 pin batwing DIP (suf ? x B) and 24 pin TSSOP with
exposed thermal pad (suf ? x LP)
LP package approximate scale
in most applications, saving cost and external component count,
while minimizing power dissipation.
Internal circuit protection includes short-to-ground, shorted load,
thermal shutdown with hysteresis, and crossover current protection.
Special power up sequencing is not required.
The A3992 is supplied in a thin profile (1.2 mm maximum height)
24 pin TSSOP (suffix LP) with exposed thermal pad and a 24 pin
plastic DIP with dual copper batwing tabs (suffix B). The exposed
thermal pad on the LP is at ground potential and needs no electrical
isolation. Both packages are lead (Pb) free with 100% matte tin
leadframe plating.
Typical Application
0.22 μ F
0.22 μ F
10 μ F
VREG
VDD
CP1
CP2
VCP
0.22 μ F
5 k Ω
Microcontroller or
Controller Logic
ROSC
A3992
VBB1
VBB2
100 μ F
CLOCK
DATA
STROBE
REF
SLEEP
OUT1A
OUT1B
SENSE1
OUT2A
OUT2B
SENSE2
0.1 μ F
0.1 μ F
3992DS, Rev. 2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| A3995 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:DMOS Dual Full Bridge PWM Motor Driver |
| A3995SEV-T | 制造商:Allegro MicroSystems 功能描述:MOTOR DRIVER FULL BRIDGE PWM SMD 制造商:Allegro MicroSystems 功能描述:MOTOR DRIVER, FULL BRIDGE, PWM, SMD 制造商:Allegro MicroSystems 功能描述:MOTOR DRIVER, FULL BRIDGE, PWM, SMD; Motor Type:Stepper; No. of Outputs:8; Output Current:3.5A; Output Voltage:36V; Driver Case Style:QFN; No. of Pins:36; Supply Voltage Min:3V; Supply Voltage Max:5.5V; Operating Temperature ;RoHS Compliant: Yes |
| A3995SEV-T | 制造商:Allegro MicroSystems 功能描述:Motor Driver IC |
| A3995SEVTR-T | 功能描述:IC MOTOR DRIVER PWM DUAL 36-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电机和风扇控制器，驱动器 系列:- 标准包装:1 系列:- 应用:步进电机驱动器，1-2 相，2 相 评估套件:- 输出数:1 电流 - 输出:800mA 电压 - 负载:10 V ~ 28 V 电源电压:4.75 V ~ 5.25 V 工作温度:-20°C ~ 90°C 安装类型:表面贴装 封装/外壳:28-SOP + 2 翼片裸露焊盘 供应商设备封装:28-HSOPHC（15.2x7.9） 包装:剪切带 (CT) 其它名称:869-1268-1 |
| A3998 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Designed to provide the motor driver and power supply requirements for printers and office automation equipment. |
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