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参数资料
| 型号： | A3998SETTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 12/20页 |
| 文件大小： | 0K |
| 描述： | IC MOTOR DRIVER DUAL DMOS QFN |
| 标准包装： | 1 |
| 应用： | 直流电机驱动器，PWM 电机驱动器，步进电机驱动器 |
| 输出数： | 1 或 2 |
| 电流 - 输出： | ±1.5A |
| 电压 - 负载： | 9 V ~ 50 V |
| 电源电压： | 3 V ~ 5.5 V |
| 工作温度： | -20°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-VFQFN 裸露焊盘 |
| 供应商设备封装： | 32-QFN |
| 包装： | 标准包装 |
| 其它名称： | 620-1459-6 |
A3998
Table 1. Configuration Register Bit Map
Dual DMOS Full Bridge Motor Driver
With Serial Port Control and Dual Regulators
Bit #
Word 0
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
Word 1
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
Function
Bridge 1 Blank Time LSB
Bridge 1 Blank Time MSB
Bridge 1 Off Time LSB
Bridge 1 Off Time Bit 1
Bridge 1 Off Time Bit 2
Bridge 1 Off Time Bit 3
Bridge 1 Off Time MSB
Bridge 1 Fast Decay LSB
Bridge 1 Fast Decay Bit 1
Bridge 1 Fast Decay Bit 2
Bridge 1 Fast Decay MSB
Bridge 1 Synchronous Rectification Control:
0 = Active
1 = Passive
Unused
Unused
Word Select 0 = 0
Word Select 1 = 0
Bridge 2 Blank Time LSB
Bridge 2 Blank Time MSB
Bridge 2 Off Time LSB
Bridge 2 Off Time Bit 1
Bridge 2 Off Time Bit 2
Bridge 2 Off Time Bit 3
Bridge 2 Off Time MSB
Bridge 2 Fast Decay LSB
Bridge 2 Fast Decay Bit 1
Bridge 2 Fast Decay Bit2
Bridge 2 Fast Decay MSB
Bridge 2 Synchronous Rectification Control:
0 = Active
1 = Passive
Unused
Unused
Word Select 0 = 1
Word Select 1 = 0
Reset (POR) Value
0
0
0
0
0
0
1
0
0
0
0
0
0
–
–
–
0
0
0
0
0
0
1
0
0
0
0
0
0
–
–
–
Continued on the next page…
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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