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| 型号： | A3950SLPTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 4/12页 |
| 文件大小： | 0K |
| 描述： | IC MOTOR DVR FULL BRIDGE 16TSSOP |
| 标准包装： | 1 |
| 应用： | PWM 电机驱动器 |
| 输出数： | 1 |
| 电流 - 输出： | ±2.8A |
| 电源电压： | 8 V ~ 36 V |
| 工作温度： | -20°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm）裸露焊盘 |
| 供应商设备封装： | 16-TSSOP-EP |
| 包装： | 标准包装 |
| 产品目录页面： | 1140 (CN2011-ZH PDF) |
| 其它名称： | 620-1297-6 |
A3950
DMOS Full-Bridge Motor Driver
ELECTRICAL CHARACTERISTICS at TJ = 25°C, V BB = 8 to 36 V, unless noted otherwise
Characteristics Symbol Test Conditions
Min. Typ. Max. Units
V IH
V IL
I IH
I IL
I IH
I IL
I IH
I IL
Motor Supply Current I BB
PHASE, ENABLE, MODE Input V IH
Voltage V IL
SLEEP Input Voltage
PHASE, MODE Input Current 1
ENABLE Input Current
SLEEP Input Current
NFAULT Output Voltage V OL
Input Hysteresis, except SLEEP V IHys
Output On Resistance R DS(on)
Body Diode Forward Voltage 1 V f
Propagation Delay Time t pd
Crossover Delay t COD
Protection Circuitry
f PWM < 50 kHz
Charge pump on, outputs disabled
Sleep mode
V IN = 2.0 V
V IN = 0.8 V
V IN = 2.0 V
V IN = 0.8 V
V IN = 2.7 V
V IN = 0.8 V
I sink = 1.0 mA
Source driver, I OUT = -2.8 A, T J =25°C
Source driver, I OUT = -2.8 A, T J =125°C
Sink driver, I OUT = 2.8 A, T J =25°C
Sink driver, I OUT = 2.8 A, T J =125°C
Source diode, I f = –2.8 A
Sink diode, I f = 2.8 A
PWM, change to source or sink ON
PWM, change to source or sink OFF
– 6 8.5 mA
– 3 4.5 mA
– – 10 μ A
2.0 – – V
– – 0.8 V
2.7 – – V
– – 0.8 V
– <1.0 20 μ A
–20 <–2.0 20 μ A
– 40 100 μ A
– 16 40 μ A
– 27 50 μ A
– <1 10 μ A
– – 0.4 V
100 150 250 mV
– 0.35 0.48 Ω
– 0.55 0.8 Ω
– 0.3 0.43 Ω
– 0.45 0.7 Ω
– – 1.4 V
– – 1.4 V
– 600 – ns
– 100 – ns
– 500 – ns
UVLO Threshold V UV V BB increasing – 6.5
UVLO Hysteresis V UVHys – 250
Overcurrent Threshold 2 I OCP 3 –
Overcurrent Protection Period t OCP – 1.2
Thermal Warning Temperature T JW Temperature increasing – 160
Thermal Warning Hysteresis T JWHys Recovery = T JW – T JWHys – 15
Thermal Shutdown Temperature T JTSD Temperature increasing – 175
Thermal Shutdown Hysteresis T JTSDHys Recovery = T JTSD – T JTSDHys – 15
1 For input and output current specifications, negative current is defined as coming out of (sourcing) the specified device pin.
2 Overcurrent
protection is tested at 25°C in a restricted range and guaranteed by characterization.
THERMAL CHARACTERISTICS may require derating at maximum conditions, see application information
–
–
–
–
–
–
–
–
V
mV
A
ms
°C
°C
°C
°C
Characteristic
Package Thermal Resistance
Symbol
R θ JA
Test Conditions*
Preliminary: EU package, 4-layer PCB based on JEDEC standard
LP package, 4-layer PCB based on JEDEC standard
LP package, 2-layer PCB with 3.8 in. 2 copper both sides, connected by
thermal vias
Value
30
34
43
Units
oC/W
oC/W
oC/W
*Additional thermal data available on the Allegro Web site.
Allegro MicroSystems, LLC
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
4
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