参数资料
型号: MCP3905EV
厂商: Microchip Technology
文件页数: 5/30页
文件大小: 0K
描述: BOARD DEMO FOR MCP3905
产品培训模块: MCP3901 Analog Front End
标准包装: 1
主要目的: 电源管理,电度表/功率表
嵌入式:
已用 IC / 零件: MCP3905/6
主要属性: 1 相 120/220 VAC 板载无变压器 AC/DC 5V 电源
已供物品: 板,CD
产品目录页面: 677 (CN2011-ZH PDF)
相关产品: MCP3905L-I/SS-ND - IC POWER METERING-1 PHASE 24SSOP
MCP3905LT-I/SSTR-ND - IC POWER METERING-1 PHASE 24SSOP
MCP3906AT-I/SS-ND - IC POWER METERING-1 PHASE 24SSOP
MCP3905AT-I/SS-ND - IC POWER METERING-1 PHASE 24SSOP
MCP3906A-I/SS-ND - IC POWER METERING-1 PHASE 24SSOP
MCP3905A-I/SS-ND - IC POWER METERING-1 PHASE 24SSOP
MCP3905/06
TIMING CHARACTERISTICS
Electrical Specifications: Unless otherwise indicated, all parameters apply at AV DD = DV DD = 4.5V – 5.5V,
A GND , D GND = 0V, MCLK = 3.58 MHz; T A = -40°C to +85°C.
Parameter
Sym
Min
Typ
Max
Units
Comment
Frequency Output
F OUT0 and F OUT1 Pulse Width
t FW
275
ms
984376 MCLK periods
(Logic-Low)
HF OUT Pulse Width
t HW
90
ms
322160 MCLK periods
F OUT0 and F OUT1 Pulse Period
HF OUT Pulse Period
t FP
t HP
Refer to Equation 4-1
Refer to Equation 4-2
s
s
F OUT0 to F OUT1 Falling-Edge Time
F OUT0 to F OUT1 Min Separation
t FS2
t FS
0.5 t FP
4/MCLK
F OUT0 and F OUT1 Output High Voltage
F OUT0 and F OUT1 Output Low Voltage
HF OUT Output High Voltage
HF OUT Output Low Voltage
High-Level Input Voltage
V OH
V OL
V OH
V OL
V IH
4.5
4.0
2.4
0.5
0.5
V
V
V
V
V
I OH = 10 mA, DV DD = 5.0V
I OL = 10 mA, DV DD = 5.0V
I OH = 5 mA, DV DD = 5.0V
I OL = 5 mA, DV DD = 5.0V
DV DD = 5.0V
(All Digital Input Pins)
Low-Level Input Voltage
V IL
0.85
V
DV DD = 5.0V
(All Digital Input Pins)
Input Leakage Current
Pin Capacitance
±3
10
μA
pF
V IN = 0, V IN = DV DD
Note 1:
2:
3:
If output pulse period (t FP ) falls below 984376*2 MCLK periods, then t FW = 1/2 t FP .
If output pulse period (t HP ) falls below 322160*2 MCLK periods, then t HW = 1/2 t HP .
Specified by characterization, not production tested.
t FP
t FW
F OUT0
t FS
t FS2
F OUT1
t HW
HF OUT
t HP
NEG
FIGURE 1-1:
Output Timings for Pulse Outputs and Negative Power Pin.
? 2009 Microchip Technology Inc.
DS21948E-page 5
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