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| 型号： | 78M6618-SOCKET68 |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 27/32页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD 78M6618 68PIN QFN |
| 标准包装： | 1 |
| 系列： | * |
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DS_6618_005
4 Pin Descriptions
78M6618 Data Sheet
4.1
Power and Ground Pins
Table 26: Power and Ground Pins
Name
GNDA
Type
P
Circuit
–
Description
Analog ground: This pin should be connected directly to the ground
plane.
GNDD
V3P3A
P
P
–
–
Digital ground: This pin should be connected directly to the ground plane.
Analog power supply: A 3.3 V power supply should be connected to this
pin, must be the same voltage as V3P3SYS.
V3P3SYS
P
–
System 3.3 V supply. This pin should be connected to a 3.3 V power
supply.
V3P3D
O
13
Auxiliary voltage output of the chip, controlled by the internal 3.3 V
selection switch. In mission mode, this pin is internally connected to
V3P3SYS. In BROWNOUT mode, it is internally connected to VBAT.
This pin is left unconnected in LCD and sleep mode. A bypass capacitor
to ground should not exceed 0.1 μ F.
VBAT
P
12
Battery backup and oscillator power supply. A battery or super-capacitor
is to be connected between VBAT and GNDD. If no battery is used,
connect VBAT to V3P3SYS.
V2P5
4.2
O
Analog Pins
10
Output of the internal 2.5 V regulator. Leave this pin open.
Table 27: Analog Pins
Name
IA, IB,
IC, ID,
IE, IF,
Type
I
Circuit
6
Description
Line Current Sense Inputs: These pins are voltage inputs to the internal A/D
converter. Typically, they are connected to the outputs of current sensors.
Unused pins must be tied to V3P3A .
IG, IH
VA, VB
I
6
Line Voltage Sense Inputs: These pins are voltage inputs to the internal A/D
converter. Typically, they are connected to the outputs of resistor dividers.
Unused pins must be tied to V3P3A.
V1
I
7
Comparator Input: This pin is a voltage input to the internal comparator.
The voltage applied to the pin is compared to the internal BIAS voltage
(1.6 V). If the input voltage is above VBIAS, the comparator output will be
high (1). If the comparator output is low, a voltage fault will occur. A series
5 k ? resistor should be connected from V1 to the resistor divider.
VREF
O
9
Voltage Reference for the ADC. Normally disabled and left unconnected. If
enabled, a 0.1 μ F capacitor to V3P3A should be connected to this pin.
XIN
XOUT
I
8
Crystal Inputs: A 32 kHz crystal should be connected across these pins.
Typically, a 33 pF capacitor is also connected from XIN to GNDA and a
15 pF capacitor is connected from XOUT to GNDA. It is important to mi-
nimize the capacitance between these pins. See the crystal manufacturer
datasheet for details. If an external clock is used, a 150 mV (p-p) clock
signal should be applied to XIN, and XOUT should be left unconnected.
1)
Pin types: P = Power, O = Output, I = Input, I/O = Input/Output
The circuit number denotes the equivalent circuit, as specified under Section 5 , I/O Equivalent Circuits .
Rev. 1.4
27
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| 78M6631 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:3-Phase Power-Measurement IC |
| 78M6631_1204 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:3-Phase Power-Measurement IC |
| 78M6631-EVM-1 | 功能描述:电源管理IC开发工具 78M6631 Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| 78M6631-IM/F | 功能描述:计量片上系统 - SoC 3-Phase Power Measure/Mtr SoC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel |
| 78M6631-IM/F/P2 | 功能描述:IC POWER MEAS/MON 3 PHASE 56TQFN 制造商:maxim integrated 系列:Teridian?? 包装:管件 零件状态:停产 输入阻抗:40 千欧 ~ 90 千欧 测量误差:0.5% 电压 - I/O 高:2V 电压 - I/O 低:0.8V 电流 - 电源:9.1mA 电压 - 电源:3 V ~ 3.6 V 表计类型:3 相 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:68-VFQFN 裸露焊盘 供应商器件封装:68-QFN（8x8） 标准包装:260 |
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