- 您現在的位置：買賣IC網 > PDF目錄180478 > MAX5961ETM+ (MAXIM INTEGRATED PRODUCTS INC) 0 to 16V, Quad, Hot-Swap Controller with 10-Bit Current and Voltage Monitor; Package: THIN QFN, 48 pin ; Temperature Range: -40°C to +85°C PDF資料下載
參數資料
| 型號： | MAX5961ETM+ |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 0 to 16V, Quad, Hot-Swap Controller with 10-Bit Current and Voltage Monitor; Package: THIN QFN, 48 pin ; Temperature Range: -40°C to +85°C |
| 中文描述： | 4-CHANNEL POWER SUPPLY SUPPORT CKT, QCC48 |
| 封裝： | 7 X 7 MM, ROHS COMPLIANT, MO-220, TQFN-48 |
| 文件頁數： | 29/42頁 |
| 文件大?。?/td> | 335K |
| 代理商： | MAX5961ETM+ |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁當前第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁
MAX5961
0 to 16V, Quad, Hot-Swap Controller
with 10-Bit Current and Voltage Monitor
______________________________________________________________________________________
35
If the circular buffer contents are retrieved as 10-bit
data, the first byte read-out is the high-order 8 bits of
the 10-bit sample, and the second byte read-out con-
tains the two least-significant bits (LSBs) of the sample.
This is repeated for each of the 50 samples in the
buffer. Thus, 2 bytes must be read for each 10-bit sam-
ple retrieved. Conversely, if the buffer contents are
retrieved as 8-bit data, then each byte read-out con-
tains the 8 MSB of each successive sample. It is impor-
tant to remember that in 10-bit mode, 100 bytes must
be read to extract the entire buffer contents, but in 8-bit
mode, only 50 bytes must be read.
The circular buffer system has a user-programmable
“stop delay” that specifies a certain number of sample
cycles to continue recording to the buffer after a shut-
down occurs. This delay value is stored in register
cbuf_dly_stop[5:0] (see Table 44).
The default (reset) value of the buffer stop-delay is 25
samples, which means that an equal number of sam-
ples are stored in the buffer preceding and following
the moment of the shutdown event. The buffer stop
delay is analogous to an oscilloscope trigger delay,
because it allows the MAX5961 to record what hap-
pened both immediately before and after a shutdown.
In other words, when the contents of a circular buffer
are read-out of the MAX5961, the shutdown event will
by default be located in the middle of the recorded
data. The balance of data before and after an event
can be altered by writing a different value (between 0
and 50) to the buffer stop-delay register.
Autoretry or Latched-Off
Fault Management
In the event of an overcurrent, undervoltage, or overvolt-
age condition that results in the shutdown of one or more
channels, the MAX5961 device can be configured to
either latch off or automatically restart the affected chan-
nel. The MAX5961 stays off if the RETRY input is set low
(latched-off), and will autoretry if the RETRY input is high.
The RETRY input is read once during initialization and sets
the value of bit 6 of the status3 register (see Table 30).
The autoretry feature has a fixed 200ms timeout delay
between fault shutdown and the autorestart attempt. Be
aware that if the MAX5961 is configured for autoretry
operation, the startup event will occur every 200ms if a
short circuit occurs. A short circuit during startup caus-
es the output current to increase rapidly as the MOS-
FET is enhanced, until the slow-trip threshold is
reached and the gate is pulled low again. Be sure to
evaluate the MOSFET junction temperature rise for this
repeated-stress condition if autoretry is used.
To restart a channel that has been shut down in latched-
off operation (RETRY low), the user must either cycle
power to the IN pin, or toggle one or more of the ON_
input, Chx_EN1 bit, or the Chx_EN2 bit for the affected
channel.
Force-On Function
When the force-on bit for a channel is set to 1 in regis-
ter foset[3:0] (see Table 45), the channel is enabled
regardless of the ON_ pin voltage or the Chx_EN1 and
Chx_EN2 bits in register chxen. In forced-on operation,
all functions operate normally with the notable excep-
tion that the channel will not shut down due to any fault
conditions that may arise.
There is a force-on key register, fokey, that must be set
to 0xA5 for the force-on function to become active (see
Table 46). If this register contains any value other than
0xA5, writing 1 to the force-on bits in register
foset will
have no effect. This provides protection against acci-
dental force-on operation that might otherwise be
caused by an erroneous I2C write.
Table 44. Circular Buffer Stop-Delay Register Format
Description:
Circular buffer stop-delay: any integer number between 0 and 50 samples that are to be recorded to
a buffer after a shutdown event, before the buffer stops storing new data.
Register Title:
cbuf_dly_stop
Register Address:
0x72
R
R/W
RESET
VALUE
00
0x19
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
相關PDF資料 |
PDF描述 |
|---|---|
| MAX5965AEAX+ | High-Power, Quad, Monolithic, PSE Controllers for Power over Ethernet; Package: SSOP;36 pin;163 mm² ; Temperature: -40°C to +85°C |
| MAX5965AUAX+ | High-Power, Quad, Monolithic, PSE Controllers for Power over Ethernet; Package: SSOP;36 pin;163 mm² ; Temperature: 0°C to +85°C |
| MAX5965BEAX+ | High-Power, Quad, Monolithic, PSE Controllers for Power over Ethernet; Package: SSOP;36 pin;163 mm² ; Temperature: -40°C to +85°C |
| MAX5965BUAX+ | High-Power, Quad, Monolithic, PSE Controllers for Power over Ethernet; Package: SSOP;36 pin;163 mm² ; Temperature: 0°C to +85°C |
| MAX6317HUK25AW-T | Versatile Customizable SOT Reset + Watchdog ICs Offer 3224 Unique Options[Japanese] |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX5961ETM+ | 功能描述:熱插拔功率分布 Quad Hot-Swap Controller RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX5961ETM+T | 功能描述:熱插拔功率分布 Quad Hot-Swap Controller RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX5961EVKIT+ | 功能描述:電源管理IC開發(fā)工具 MAX5961 Eval Kit RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| MAX5963UTL+ | 功能描述:熱插拔功率分布 Dl 7.5-76V Hot-Swap & Diode ORing Ctlr RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX5963UTL+T | 功能描述:熱插拔功率分布 Dl 7.5-76V Hot-Swap & Diode ORing Ctlr RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
發(fā)布緊急采購，3分鐘左右您將得到回復。