參數(shù)資料
型號(hào)： MAX6876ETX+
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 電源管理
英文描述： EEPROM-Programmable, Quad, Power-Supply Tracker/Sequencer Circuit
中文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, QCC36
封裝： 6 X 6 MM, 0.80 MM HEIGHT, MO-220WJJD-1, TQFN-36
文件頁(yè)數(shù)： 25/39頁(yè)
文件大?。?/td> 425K
代理商： MAX6876ETX+
MAX6876
EEPROM-Programmable, Quad,
Power-Supply Tracker/Sequencer Circuit
______________________________________________________________________________________
31
6) The master generates a repeated start condition.
7) The master sends the 7-bit slave address and a
read bit (high).
8) The slave asserts an ACK on SDA.
9) The slave sends the 8-bit byte count (16).
10) The master asserts an ACK on SDA.
11) The slave sends 8 bits of data.
12) The master asserts an ACK on SDA.
13) Repeat steps 8 and 9 fifteen times.
14) The master generates a stop condition.
Address Pointers
Use the send byte protocol to set the register address
pointers before read and write operations. For the con-
figuration registers, valid address pointers range from
00h to 13h. Register addresses outside of this range
result in a NACK being issued from the MAX6876.
When using the block write protocol, the address point-
er automatically increments after each data byte,
except when the address pointer is already at 13h. If
the address pointer is already 13h, and more data
bytes are being sent, these subsequent bytes overwrite
address 13h repeatedly, leaving only the last data byte
sent stored at this register address.
For the configuration EEPROM, valid address pointers
range from 20h to 33h. When using the block write pro-
tocol, the address pointer automatically increments
after each data byte, except when the address pointer
is already at 33h. If the address pointer is already 33h,
and more data bytes are being sent, these subsequent
bytes overwrite address 33h repeatedly, leaving only
the last data byte sent stored at this register address.
Configuration EEPROM
The configuration EEPROM addresses range from 20h
to 33h. Write data to the configuration EEPROM to auto-
matically set up the MAX6876 upon power-up. Data
transfers from the configuration EEPROM to the config-
uration registers when ABP exceeds UVLO during
power-up. After ABP exceeds UVLO, an internal 1MHz
clock starts after a 5s delay, and data transfer begins.
Data transfer disables access to the configuration reg-
isters and EEPROM. The data transfer from EEPROM to
the configuration registers takes 2ms (max). Read con-
figuration EEPROM data at any time after power-up or
software reboot. Write commands to the configuration
EEPROM are allowed at any time, unless the configura-
tion lock bit is set (see Table 15). The maximum cycle
time to write a single byte is 11ms (max).
Configuration Register Bank and EEPROM
The configuration registers can be directly modified
with 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 are lost
upon power removal.
At device power-up, the register bank loads configura-
tion data from the EEPROM. Configuration data can be
directly altered in the register bank during application
development, allowing maximum flexibility. Transfer the
new configuration data byte-by-byte to the configura-
tion EEPROM with the write byte protocol. The next
device power-up or software reboot automatically loads
the new configuration (Table 16).
REGISTER
ADDRESS
EEPROM MEMORY
ADDRESS
BIT RANGE
DESCRIPTION
If 1, configuration registers are locked
13h
33h
2
If 0, configuration registers unlocked
Table 15. Configuration of Lock Bit
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX6876ETX+ 功能描述:監(jiān)控電路 EEPROM-Prog Quad 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
MAX6876ETX+T 功能描述:監(jiān)控電路 EEPROM-Prog Quad 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
MAX6876ETX-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
MAX6876EVCMOD2 功能描述:監(jiān)控電路 Programmers, Development Systems 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
MAX6876EVKIT 功能描述:監(jiān)控電路 Programmers, Development Systems 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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