參數(shù)資料
型號： 71M6531D-IMR/F
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC68
封裝： LEAD FREE, QFN-68
文件頁數(shù)： 87/120頁
文件大?。?/td> 2477K
代理商： 71M6531D-IMR/F
FDS 6531/6532 005
Data Sheet 71M6531D/F-71M6532D/F
v1.3
2005-2010 TERIDIAN Semiconductor Corporation
69
R
1
RESET
71M6533
DGND
100
Ω
R
1
RESET
71M6533
DGND
100
Ω
3.11
Connecting the Reset Pin
Even though a functional meter will not necessarily need a reset switch, it is useful to have a reset push-
button for prototyping as shown in Figure 38, left side. The RESET signal may be sourced from V3P3SYS
(functional in MISSION mode only), V3P3D (MISSION and BROWNOUT modes), or VBAT (all modes, if
a battery is present), or from a combination of these sources, depending on the application.
For a production meter, the RESET pin should be protected by the by the external components shown in
Figure 38, right side. R1 should be in the range of 100
and mounted as closely as possible to the IC.
Figure 38: External Components for the RESET Pin: Push-button (Left), Production Circuit (Right)
Since the 71M6531 generates its own power-on reset, a reset button or circuitry, as shown in Figure 38,
is only required for test units and prototypes.
3.12
Connecting the Emulator Port Pins
Even when the emulator is not used, small shunt capacitors to ground (22 pF) should be used for protection
from EMI as illustrated in Figure 39. Production boards should have the ICE_E pin connected to ground.
Figure 39: External Components for the Emulator Interface
3.13
Connecting a Battery
It is important that a valid voltage is connected to the VBAT pin at all times. For meters without a battery,
VBAT should be connected directly to V3P3SYS. Designs for meters with batteries need to ensure that
the meter functions even when the battery voltage decreases below the specified voltage for VBAT. This
can be achieved by connecting a diode from V3P3SYS to VBAT. However, the battery test will yield
inaccurate results if that technique is used, since the voltage at V3P3SYS will feed current to the VBAT
pin. A better solution is shown in Figure 40: During the battery test, a DIO pin is activated as an output
and applies a low voltage to the anode of the diode. This prevents the voltage at the power supply to in-
fluence the voltage at the VBAT pin.
E_RST
71M6531D/F
71M6532D/F
E_TCLK
62
Ω
62
62
22 pF
LCD Segments
ICE_E
V3P3D
E_RXT
(optional)
R1
RESET
GNDD
V3P3D
R2
VBAT/
V3P3D
Reset
Switch
1k
0.1F
10k
71M6531D/F
71M6532D/F
71M6531D/F
71M6532D/F
相關(guān)PDF資料
PDF描述
71M6532F-IGTR/F 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP100
71M6532D-IGT/F 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP100
71M6531D-IM/F 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC68
71M6532F-IGTR/F 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP100
71M6534-IGT/F SPECIALTY ANALOG CIRCUIT, PQFP120
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
71M6531F 制造商:TERIDIAN 制造商全稱:TERIDIAN 功能描述:Energy Meter IC
71M6531F-DB 功能描述:開發(fā)板和工具包 - 8051 71M6531F Demo Brd RoHS:否 制造商:Silicon Labs 產(chǎn)品:Development Kits 工具用于評估:C8051F960, Si7005 核心: 接口類型:USB 工作電源電壓:
71M6531F-IM/F 功能描述:計量片上系統(tǒng) - SoC Residential Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 處理器系列:71M6511 類型:Metering SoC 最大時鐘頻率:70 Hz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:7 KB 接口類型:UART 可編程輸入/輸出端數(shù)量:12 片上 ADC: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-64 封裝:Reel
71M6531F-IM/F3 功能描述:計量片上系統(tǒng) - SoC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 處理器系列:71M6511 類型:Metering SoC 最大時鐘頻率:70 Hz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:7 KB 接口類型:UART 可編程輸入/輸出端數(shù)量:12 片上 ADC: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-64 封裝:Reel
71M6531F-IM/F4 功能描述:計量片上系統(tǒng) - SoC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 處理器系列:71M6511 類型:Metering SoC 最大時鐘頻率:70 Hz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:7 KB 接口類型:UART 可編程輸入/輸出端數(shù)量:12 片上 ADC: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-64 封裝:Reel
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