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| 型号： | A3959SLP-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC MOTOR DRIVER PWM FULL 28TSSOP |
| 标准包装： | 50 |
| 应用： | PWM 电机驱动器 |
| 输出数： | 1 |
| 电流 - 输出： | ±3A |
| 电压 - 负载： | 9.5 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： | 28-SOIC（0.173"，4.40mm 宽）裸露焊盘 |
| 供应商设备封装： | 28-TSSOP 裸露焊盘 |
| 包装： | 管件 |
| 其它名称： | 620-1071 |
A3959
DMOS Full-Bridge PWM Motor Driver
Features and Benefits
? ±3 A, 50 V Output Rating
? Low r DS(on) Outputs (270 m ? , Typical)
? Mixed, Fast, and Slow Current-Decay Modes
? Synchronous Rectification for Low Power Dissipation
? Internal UVLO and Thermal-Shutdown Circuitry
? Crossover-Current Protection
? Internal Oscillator for Digital PWM Timing
Packages:
Package B, 24-pin DIP
with exposed tabs
Package LB, 24-pin SOIC
with internally fused pins
Package LP, 28-pin TSSOP
Description
Designed for pulse width modulated (PWM) current control of
DC motors, the A3959 is capable of output currents to ±3 A and
operating voltages to 50 V. Internal fixed off-time PWM current-
control timing circuitry can be adjusted via control inputs to
operate in slow, fast, and mixed current-decay modes.
PHASE and ENABLE input terminals are provided for use
in controlling the speed and direction of a DC motor with
externally applied PWM-control signals. Internal synchronous
rectification control circuitry is provided to reduce power
dissipation during PWM operation.
Internal circuit protection includes thermal shutdown with
hysteresis, undervoltage monitoring of supply and charge
pump, and crossover-current protection. Special power-up
sequencing is not required.
The A3959 provides a choice of three power packages, a 24-pin
DIP with batwing tabs (package suffix ‘B’), a 24-lead SOIC
with four internally-fused pins (package suffix ‘LB’), and a
thin (<1.2 mm) 28-pin TSSOP with an exposed thermal pad
(suffix ‘LP’). In all cases, the power pins and tabs are at ground
potential and need no electrical isolation. Each package is lead
(Pb) free, with 100% matte tin leadframes.
with exposed thermal pad
Not to scale
Functional Block Diagram
V DD
V BB
+
LOGIC
SUPPLY
LOAD
SUPPLY
TO V DD
CHARGE PUMP
BANDGAP
V DD
C REG
UNDER-
VOLTAGE &
FAULT DETECT
CHARGE
PUMP
BANDGAP
REGULATOR
V REG
TSD
SLEEP
EXT MODE
PHASE
ENABLE
TO V DD
CONTROL LOGIC
OUT A
OUT B
SENSE
BLANK
PFD1
PFD2
ROSC
PWM
TIMER
OSC
ZERO
CURRENT
DETECT
CURRENT
SENSE
REFERENCE
BUFFER &
10
REF
R S
C S
V REF
Dwg. FP-048-2A
29319.37L
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相关代理商/技术参数 |
参数描述 |
|---|---|
| A3959SLP-T | 制造商:Allegro MicroSystems 功能描述:Motor Driver IC |
| A3959SLPTR | 功能描述:IC MOTOR DRIVER PWM FULL 28TSSOP RoHS:否 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:直流电机驱动器，步进电机驱动器 评估套件:- 输出数:1 或 2 电流 - 输出:750mA 电压 - 负载:10 V ~ 40 V 电源电压:4.5 V ~ 5.5 V 工作温度:-20°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-BFSOP（0.295"，7.50mm 宽） 供应商设备封装:24-SOP 包装:Digi-Reel® 其它名称:MTS62C19A-HS105DKR |
| A3959SLPTR-T | 功能描述:IC MOTOR DRIVER PWM FULL 28TSSOP 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 |
| A3960-0000T | 制造商:3M 制造商全称:3M Electronics 功能描述:100 x 100, PCB Two Row |
| A3960-0010T | 制造商:3M 制造商全称:3M Electronics 功能描述:100 x 100, PCB Two Row |
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