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参数资料
| 型号： | MC34921AER2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 4/36页 |
| 文件大小： | 0K |
| 描述： | IC MOTOR DRVR PWM DC DUAL 64LQFP |
| 标准包装： | 1,500 |
| 应用： | DC 电机驱动器，步进电机驱动器，H 桥式 |
| 输出数： | 2 |
| 电流 - 输出： | ±4.5A |
| 电压 - 负载： | 0 V ~ 38 V |
| 电源电压： | 4.8 V ~ 5.2 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 64-LQFP 裸露焊盘 |
| 供应商设备封装： | 64-LQFP EP（10x10） |
| 包装： | 带卷 (TR) |
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TERMINAL CONNECTIONS
Table 1. Terminal Function Description (continued)
A functional description of each terminal can be found in the Functional Terminal Description section beginning on page 18
Terminal
10
Terminal Name
3.3 V SWITCH
Formal Name
3.3 V Switching
3.3 V regulator switching output.
Definition
Regulator Switch
Output
11
3.3 V
3.3 V Regulator
Feedback terminal for 3.3 V switching regulator and internal logic supply.
Feedback
12
13
14, 15
18, 19
22
23
26
27
V CORE SUPPLY
V CORE
ADCMA
ADCMB
VBOOST
CP2
CP1
GATEOUT
Core Voltage
Regulator Input
Core Voltage
Regulator Output
DC Motor A Output A
DC Motor A Output B
Boost Voltage
Switching Capacitor 2
Switching Capacitor 1
High-Side MOSFET
Core regulator input supply.
Core regulator output voltage.
DC motor driver A output A.
DC motor driver A output B.
Boost voltage storage node.
Charge pump capacitor connection 2.
Charge pump capacitor connection 1.
Gate driver for external N-channel switch.
Gate Driver
30, 31
34, 35
36
BDCMB
BDCMA
5 V SELECT
DC Motor B Output B
DC Motor B Output A
5.0 V Regulator Mode
DC motor driver B output B.
DC motor driver B output A.
5.0 V regulator operating mode select.
Select
37
5 V SWITCH
5.0 V Switching
5.0 V switching regulator switching output.
Regulator Switch
Output
38
5 V SUPPLY
5.0 V Regulator Input
5.0 V regulator input voltage.
Supply
39
5V
5.0 V Regulator
5.0 V regulator feedback.
Feedback
42
43
44
45
46
AN0/ANALOGOUT_A
AN1/ANALOGOUT_B
AN2/ANALOGIN_A
AN3/ANALOGIN_B
ENC_FILTB
AN0/Analogout_A
AN1/Analogout_B
AN2/Analogin_A
AN3/Analogin_B
Analog Encoder
A/D input 0 or analog encoder output A.
A/D input 1 or analog encoder output B.
A/D input 2 or analog encoder input A.
A/D input 3 or analog encoder input B.
I/V amplifier channel B filter.
Channel B Filter
47
ENC_FILTA
Analog Encoder
I/V amplifier channel A filter.
Channel A Filter
50
51
52
53
RST
MISO
MOSI
SCLK
Reset
Master In Slave Out
Master Out Slave In
Serial Clock
Reset input and output.
Serial data out to MCU.
Serial data in from MCU.
Serial data clock.
34921
Analog Integrated Circuit Device Data
4
Freescale Semiconductor
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