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參數(shù)資料
| 型號： | MAX16047 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 12-Channel/8-Channel EEPROM-Programmable System Managers with Nonvolatile Fault Registers |
| 中文描述： | 12/8通道EEPROM可編程系統(tǒng)管理器，提供非易失故障寄存器 |
| 文件頁數(shù)： | 53/62頁 |
| 文件大?。?/td> | 535K |
| 代理商： | MAX16047 |
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M
LOAD ADDRESS:
This is an extension to the standard
IEEE 1149.1 instruction set to support access to the
memory in the MAX16047/MAX16049. When the LOAD
ADDRESS instruction latches into the instruction regis-
ter, TDI connects to TDO through the 8-bit memory
address test data register during the shift-DR state.
READ DATA:
This is an extension to the standard IEEE
1149.1 instruction set to support access to the memory
in the MAX16047/MAX16049. When the READ instruc-
tion latches into the instruction register, TDI connects to
TDO through the 8-bit memory read test data register
during the shift-DR state.
WRITE DATA:
This is an extension to the standard
IEEE 1149.1 instruction set to support access to the
memory in the MAX16047/MAX16049. When the WRITE
instruction latches into the instruction register, TDI con-
nects to TDO through the 8-bit memory write test data
register during the shift-DR state.
REBOOT:
This is an extension to the standard IEEE
1149.1 instruction set to initiate a software controlled
reset to the MAX16047/MAX16049. When the REBOOT
instruction latches into the instruction register, the
MAX16047/MAX16049 resets and immediately begins
the boot-up sequence.
SAVE:
This is an extension to the standard IEEE 1149.1
instruction set that triggers a fault log. The current ADC
conversion results along with fault information are
saved to EEPROM depending on the configuration of
the Critical Fault Log Control register (r47h).
SETEXTRAM
: This is an extension to the standard IEEE
1149.1 instruction set that allows access to the extend-
ed page. Extended registers include ADC conversion
results, DACOUT enables, and GPIO input/output data.
RSTEXTRAM:
This is an extension to the standard IEEE
1149.1 instruction set. Use RSTEXTRAM to return to the
default page and disable access to the extended page.
SETEEPADD:
This is an extension to the standard IEEE
1149.1 instruction set that allows access to the EEPROM
page. Once the SETEEPADD command has been sent, all
addresses are recognized as EEPROM addresses only.
RSTEEPADD:
This is an extension to the standard IEEE
1149.1 instruction set. Use RSTEEPADD to return to the
default page and disable access to the EEPROM.
Applications Information
Unprogrammed Device Behavior
When the EEPROM has not been programmed using the
JTAG or I
2
C interface, the default configuration of the
EN_OUT_ outputs is open-drain active-low. If it is neces-
sary to hold an EN_OUT_ high or low to prevent prema-
ture startup of a power supply before the EEPROM is
programmed, connect a resistor to ground or the supply
voltage. Avoid connecting a resistor to ground if the out-
put is to be configured as open-drain with a separate
pullup resistor.
Device Behavior at Power-Up
When V
CC
is ramped from 0V, the
RESET
output is high
impedance until V
CC
reaches 1.4V, at which point it is
driven low. All other outputs are high impedance until
V
CC
reaches 2.85V, when the EEPROM contents are
copied into register memory, and after which the out-
puts assume their programmed states.
Maintaining Power During a
Fault Condition
Power to the MAX16047/MAX16049 must be main-
tained for a specific period of time to ensure a success-
ful EEPROM fault log operation during a fault that
removes power to the circuit. The amount of time
required depends on the settings in the fault control
register (r47h[1:0]) according to Table 30.
Maintain power for shutdown during fault conditions in
applications where the always-on power supply cannot
be relied upon by placing a diode and a large capaci-
tor between the voltage source, V
IN
, and V
CC
(Figure
15). The capacitor value depends on V
IN
and the time
delay required, t
FAULT_SAVE
. Use the following formula
to calculate the capacitor size:
where the capacitance is in Farads and t
FAULT_SAVE
is
in seconds. I
CC(MAX)
is 5mA, V
DIODE
is the voltage
drop across the diode, and V
UVLO
is 2.85V. For exam-
ple, with a V
IN
of 14V, a diode drop of 0.7V, and a
t
FAULT_SAVE
of 0.204s, the minimum required capaci-
tance is 100μF.
C
t
V
I
V
V
FAULT_SAVE
CC(MAX)
IN
DIODE
CC(MIN)
=
×
Table 30. EEPROM Fault Log Operation
Period
FAULT CONTROL
REGISTER VALUE
r47h[1:0]
DESCRIPTION
REQUIRED
PERIOD
t
FAULT_SAVE
(ms)
00
Failed lines and
ADC values saved
204
01
10
Failed lines saved
ADC values saved
60
168
11
No information
saved
N/A
12-Channel/8-Channel EEPROM-Programmable
System Managers with Nonvolatile Fault Registers
______________________________________________________________________________________
53
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX16047ETN | 12-Channel/8-Channel EEPROM-Programmable System Managers with Nonvolatile Fault Registers |
| MAX16049 | Hold function, Loop detection; Vin (V) max.: 24; Icc (mA) max.: 6.45; Fmax (kHz) max.: 400; Topr [Tjopr] (°C): -40 to +125; Remarks: Power factor collection; Package: DIP; Pin count: 16 |
| MAX16049ETN | Hold function, Loop detection; Vin (V) max.: 24; Icc (mA) max.: 6.45; Fmax (kHz) max.: 400; Topr [Tjopr] (°C): -40 to +125; Remarks: Power factor collection; Package: SOP; Pin count: 16 |
| MAX16048 | 12-Channel/8-Channel EEPROM-Programmable System Managers with Nonvolatile Fault Registers |
| MAX16046 | 12-Channel/8-Channel EEPROM-Programmable System Managers with Nonvolatile Fault Registers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX16047ACB+ | 功能描述:監(jiān)控電路 12Ch EEPROM Prob System Manager 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 |
| MAX16047ACB+T | 功能描述:監(jiān)控電路 12Ch EEPROM Prob System Manager 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 |
| MAX16047ATN+ | 功能描述:監(jiān)控電路 12Ch EEPROM Prob System Manager 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 |
| MAX16047ATN+T | 功能描述:監(jiān)控電路 12Ch EEPROM Prob System Manager 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 |
| MAX16047ETN | 制造商:Maxim Integrated Products 功能描述:VOLT SUPERVISOR SEQUENCER 56TQFN EP - Rail/Tube |
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