參數(shù)資料
型號: MAX6875ETJ+
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 電源管理
英文描述: EEPROM-Programmable, Hex/Quad, Power-Supply Sequencers/Supervisors
中文描述: 4-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC32
封裝: 7 X 7 MM, 0.80 MM HEIGHT, MO-220, TQFN-32
文件頁數(shù): 30/40頁
文件大小: 337K
代理商: MAX6875ETJ+
MAX6874/MAX6875
EEPROM-Programmable, Hex/Quad,
Power-Supply Sequencers/Supervisors
36
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4) Any attempt to communicate with the device prior to
this download completion results in a NACK being
issued from the MAX6874/MAX6875.
Forcing Programmable
Outputs High During Power-Up
A weak 10A pulldown holds all programmable outputs
low during power-up until ABP exceeds the undervolt-
age lockout (UVLO) threshold. Applications requiring a
guaranteed high programmable output for ABP down to
GND require external pullup resistors to maintain the
logic state until ABP exceeds UVLO. Use 20k resis-
tors for most applications.
Uses for General-Purpose
Inputs (GPI1–GPI4)
Watchdog Timer
Program GPI_ as an input to the watchdog timer in the
MAX6874/MAX6875. The GPI_ input must toggle within
the watchdog timeout period, otherwise any program-
mable output dependent on the watchdog timer
asserts.
Additional Manual Reset Functions
Program PO7 (MAX6874)/PO5 (MAX6875) to depend
on one of the GPI_ inputs. Any output that depends on
GPI_ asserts when GPI_ is held in its active state, effec-
tively acting as a manual reset input.
Other Fault Signals from C
Connect a general-purpose output from a C to one of
the GPI_ inputs to allow interrupts to assert any output
of the MAX6874/MAX6875. Configure one of the pro-
grammable outputs to assert on whichever GPI_ input
connects to the general purpose output of the C.
Layout and Bypassing
For better noise immunity, bypass each of the voltage
detector inputs to GND with 0.1F capacitors installed
as close to the device as possible. Bypass ABP and
DBP to GND with 1F capacitors installed as close to
the device as possible. ABP and DBP are internally
generated voltages and should not be used to supply
power to external circuitry.
Configuration Latency Period
A delay of less than 5s occurs between writing to the
configuration registers and the time when these
changes actually take place, except when changing
one of the voltage-detector thresholds. Changing a
voltage-detector threshold typically takes 150s. When
changing EEPROM contents, a software reboot or
cycling of power is required for these changes to trans-
fer to volatile memory.
Chip Information
PROCESS: BiCMOS
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參數(shù)描述
MAX6875ETJ+ 功能描述:監(jiān)控電路 EEPROM-Prog Quad Power-Sup Sequencer RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 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
MAX6875ETJ+T 功能描述:監(jiān)控電路 EEPROM-Prog Quad Power-Sup Sequencer RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 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
MAX6875ETJ-T 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 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 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 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+ 功能描述:監(jiān)控電路 EEPROM-Prog Quad Power-Sup Sequencer RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 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