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A3959 PDF预览

A3959

更新时间: 2024-01-18 13:46:16
品牌 Logo 应用领域
急速微 - ALLEGRO 驱动器电机
页数 文件大小 规格书
12页 275K
描述
DMOS FULL-BRIDGE PWM MOTOR DRIVER

A3959 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:TSSOP
包装说明:HTSSOP, TSSOP28,.25针数:28
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:1.06
模拟集成电路 - 其他类型:STEPPER MOTOR CONTROLLERJESD-30 代码:R-PDSO-G28
JESD-609代码:e3长度:9.7 mm
湿度敏感等级:2功能数量:1
端子数量:28最高工作温度:85 °C
最低工作温度:-20 °C最大输出电流:6 A
封装主体材料:PLASTIC/EPOXY封装代码:HTSSOP
封装等效代码:TSSOP28,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):260
电源:5 V认证状态:Not Qualified
座面最大高度:1.2 mm子类别:Motion Control Electronics
最大供电电流 (Isup):10 mA最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):4.5 V标称供电电压 (Vsup):5 V
表面贴装:YES技术:NMOS
温度等级:OTHER端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:0.65 mm
端子位置:DUAL处于峰值回流温度下的最长时间:40
宽度:4.4 mmBase Number Matches:1

A3959 数据手册

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3959  
DMOS FULL-BRIDGE PWM  
MOTOR DRIVER  
Designed for pulse-width modulated (PWM) current control of dc  
motors, the A3959SB, A3959SLB, and A3959SLP are 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 A3959SB/SLB/SLP is a choice of three power packages, a  
24-pin plastic DIP with a copper batwing tab (package suffix ‘B’), a  
24-lead plastic SOIC with a copper batwing tab (package suffix ‘LB’),  
and a thin (<1.2 mm) 28-lead plastic TSSOP with an exposed thermal  
pad (suffix ‘LP’). In all cases, the power tab is at ground potential and  
needs no electrical isolation. Each package is available in a lead-  
free version (100% matte tin leadframe).  
A3959SLB (SOIC)  
CP  
24  
VREG  
1
2
3
4
CP  
2
23 SLEEP  
NO  
22  
CP  
1
NC  
BB  
CONNECTION  
θ
PHASE  
ROSC  
21  
OUT  
B
V
20  
19  
18  
5
6
7
8
LOAD SUPPLY  
GROUND  
GROUND  
SENSE  
GROUND  
GROUND  
LOGIC SUPPLY  
V
DD  
17  
9
9
ENABLE  
16 OUTA  
NO  
CONNECTION  
NC  
PFD  
2
15  
14  
13  
10  
EXT MODE  
REF  
BLANK 11  
PFD 12  
÷
10  
1
Dwg. PP-069-4  
Note that the A3959SLB(SOIC), A3959SB (DIP),  
and A3959SLP (TSSOP) do not share a common  
terminal assignment.  
ABSOLUTE MAXIMUM RATINGS  
Load Supply Voltage, VBB ......................... 50 V  
Output Current, IOUT (Repetitive) ........... ±3.0 A  
(Peak, <3 µs)................................... ±6.0 A  
Logic Supply Voltage, VDD ....................... 7.0 V  
Logic Input Voltage Range, VIN  
(Continuous)............ -0.3 V to VDD + 0.3 V  
(tw <30 ns) ............... -1.0 V to VDD + 1.0 V  
Sense Voltage, VS (Continuous) .............. 0.5 V  
(tw <3 µs) ........................................... 2.5 V  
Reference Voltage, VREF ............................ VDD  
Package Power Dissipation (TA = 25°C), PD  
A3959SB ........................................ 3.3 W*  
A3959SLB ...................................... 2.5 W*  
A3959SLP ...................................... 3.1 W*  
Operating Temp. Range, TA .... -20°C to +85°C  
Junction Temperature, TJ ..................... +150°C  
Storage Temp. Range, TS ..... -55°C to +150°C  
FEATURES  
±3 A, 50 V Output Rating  
Low rDS(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  
Always order by complete part number:  
Part Number  
A3959SB  
Package  
24-pin batwing DIP  
24-pin batwing DIP; Lead-free  
24-lead batwing SOIC  
24-lead batwing SOIC; Lead-free  
28-lead thin shrink SOIC  
RθJA  
*
RθJT  
38°C/W 6°C/W  
38°C/W 6°C/W  
50°C/W 6°C/W  
50°C/W 6°C/W  
A3959SB-T  
A3959SLB  
A3959SLB-T  
A3959SLP  
A3959SLP-T  
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 150°C.  
40°C/W  
28-lead thin shrink SOIC; Lead-free 40°C/W  
* Double-sided board, one square inch copper each side. See also, Layout, page 7.  

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