參數(shù)資料
型號(hào)： MAX6885ETP+
廠(chǎng)商： MAXIM INTEGRATED PRODUCTS INC
元件分類(lèi)： 電源管理
英文描述： EEPROM-Programmable, Hex, Power-Supply Supervisors with an ADC
中文描述： 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC20
封裝： 5 X 5 MM, 0.80 MM PITCH, MO-220WHHC, QFN-20
文件頁(yè)數(shù)： 16/34頁(yè)
文件大?。?/td> 310K
代理商： MAX6885ETP+
Configuration Register Bank
and EEPROM
The configuration registers can be directly modified by
the serial interface without modifying the EEPROM
after the power-up procedure terminates and the con-
figuration EEPROM data has been loaded into the con-
figuration register bank. Use the write byte or block
write protocols to write directly to the configuration reg-
isters. Changes to the configuration registers take
effect immediately and are lost upon power removal.
At device power-up, the register bank loads configura-
tion data from the EEPROM. Configuration data may
be directly altered in the register bank during applica-
tion development, allowing maximum flexibility.
Transfer the new configuration data, byte by byte, to
the configuration EEPROM with the write byte protocol.
The next device power-up or software reboot automati-
cally loads the new configuration. See Table 12 for a
complete register map.
Configuration EEPROM
The configuration EEPROM addresses range from 80h to
97h. Write data to the configuration EEPROM to set up
the MAX6884/MAX6885 automatically upon power-up.
Data transfers from the configuration EEPROM to the
configuration registers when VCC exceeds UVLO during
power-up or after a software reboot. After VCC exceeds
UVLO, an internal 1MHz clock starts after a 5s delay,
and data transfer begins. Data transfer disables access
to the configuration registers and EEPROM. The data
transfer from EEPROM to configuration registers takes
2.5ms maximum. Read configuration EEPROM and con-
figuration register data any time after power-up or soft-
ware reboot. Write commands to the configuration
EEPROM and configuration registers are allowed at any
time after power-up or software reboot unless the config-
uration lock bit is set (see Table 10). When the configura-
tion lock bit is set, all write access to EEPROM and
registers is disabled with the exception of the configura-
tion lock bit itself. The maximum cycle time to write a sin-
gle byte in EEPROM is 11ms (max).
User EEPROM
The 512-bit user EEPROM addresses range from 40h to
7Fh (see Figure 11). Store revision data, board revision
data, or other data in these registers. The maximum
cycle time to write a single byte is 11ms (max). Disable
writes to the user EEPROM during RESET or UV/OV
assertion by programming bit R16h[1] or R16h[0],
respectively (see Table 11).
MAX6884/MAX6885
EEPROM-Programmable, Hex
Power-Supply Supervisory Circuits
______________________________________________________________________________________
23
REGISTER
ADDRESS
EEPROM
MEMORY
ADDRESS
BIT RANGE
DESCRIPTION
[1]
1 = User EEPROM Writes Disabled on RESET Assertion
0 = User EEPROM Writes Enabled on RESET Assertion
16h
96h
[0]
1 = User EEPROM Writes Disabled on UV/OV Assertion
0 = User EEPROM Writes Enabled on UV/OV Assertion
Table 11. User EEPROM Write Disable Bits
相關(guān)PDF資料
PDF描述
MAX6886ETP+ Pin-Selectable, Hex Power-Supply Supervisory Circuit
MAX6886ETP+T Pin-Selectable, Hex Power-Supply Supervisory Circuit
MAX6887AETE+ Hex/Quad, Power-Supply Supervisory Circuits
MAX6887AETE+T Hex/Quad, Power-Supply Supervisory Circuits
MAX6887BETE+ Hex/Quad, Power-Supply Supervisory Circuits
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX6885ETP+ 功能描述:監(jiān)控電路 EEPROM-Prog Hex Power-Sup Sequencer RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類(lèi)型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MAX6885ETP+T 功能描述:監(jiān)控電路 EEPROM-Prog Hex Power-Sup Sequencer RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類(lèi)型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MAX6885ETP-T 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類(lèi)型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MAX6886ETP 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類(lèi)型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MAX6886ETP+ 功能描述:監(jiān)控電路 Pin-Selectable Hex Power-Sup Supervisor RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類(lèi)型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
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