參數(shù)資料
型號: MAX16049
廠商: Maxim Integrated Products, Inc.
元件分類: 基準電壓源/電流源
英文描述: 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
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): 38/62頁
文件大?。?/td> 535K
代理商: MAX16049
M
12-Channel/8-Channel EEPROM-Programmable
System Managers with Nonvolatile Fault Registers
38
______________________________________________________________________________________
Power-Up/Power-Down Faults
All EN_OUTs are deasserted if an overvoltage or under-
voltage fault is detected during power-up/power-down.
Under these conditions, information of the failing slot is
stored in EEPROM r00h[3:0] unless the fault register is
configured not to store any information by setting
r47h[1:0] to ‘11’ (see Table 17).
If there is a tracking fault on a channel configured for
closed-loop tracking, a fault log operation occurs and the
bits representing the failed tracking channels are set to
‘0’ unless the fault register is configured not to store any
information by setting r47h[1:0] to ‘11’ (see Table 17).
Autoretry/Latch Mode
For critical faults, the MAX16047/MAX16049 can be
configured for one of two fault management methods:
autoretry or latch-on-fault. Set r4Fh[3] to ‘0’ to select
autoretry mode. In this configuration, the device will
shut down after a critical fault event then restart follow-
ing a configurable delay. Use r4Fh[2:0] to select an
autoretry delay from 20μs to 1.6s. See Table 19 for
more information on setting the autoretry delay.
Set r4Fh[3] to ‘1’ to select the latch-on-fault mode. In
this configuration EN_OUT_s are deasserted after a
critical fault event. The device does not re-initiate the
power-up sequence until EN is toggled or the
Software
Enable
bit is reset to ‘0.’ See the Enable section for
more information on setting the
Software Enable
bit.
If fault information is stored in EEPROM (see the Critical
Faults section) and autoretry mode is selected, set an
autoretry delay greater than the time required for the
storing operation. If fault information is stored in EEP-
ROM and latch-on-fault mode is chosen, toggle EN or
reset the
Software Enable
bit only after the completion
of the storing operation. If saving information about the
failed lines only, ensure a delay of at least 60ms before
the restart procedure. Otherwise, ensure a minimum
204ms timeout. This ensures that ADC conversions are
completed and values are stored correctly in EEPROM.
See Table 20 for more information about required fault
log operation periods.
Table 19. Fault Recovery Configuration
REGISTER/
EEPROM
ADDRESS
BIT RANGE
DESCRIPTION
[2:0]
Autoretry Delay
000 = 20μs
001 = 12.5ms
010 = 25ms
011 = 50ms
100 = 100ms
101 = 200ms
110 = 400ms
111 = 1.6s
[3]
Fault Recovery Mode
0 = Autoretry procedure is performed following a fault event
1 = Latchoff on fault
[5:4]
Slew Rate
00 = 800V/s
01 = 400V/s
10 = 200V/s
11 = 100V/s
4Fh
[7:6]
Fault Deglitch
00 = 2 conversions
01 = 4 conversions
10 = 8 conversions
11 = 16 conversions
相關(guān)PDF資料
PDF描述
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
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MAX16049ATN+T 功能描述:監(jiān)控電路 8Ch 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 人工復位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復位延遲(典型值):10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
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