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參數資料
型號: MAX5978ETJ+
廠商: Maxim Integrated
文件頁數: 28/38頁
文件大小: 2412K
描述: IC CTLR HOT-SWAP 32TQFN
產品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 1
類型: 熱交換控制器
應用: 刀峰式服務器,網絡應用設備
內部開關:
電流限制: 可調
電源電壓: 2.7 V ~ 16 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 32-WFQFN 裸露焊盤
供應商設備封裝: 32-TQFN-EP(5x5)
包裝: 管件
0 to 16V, Hot-Swap Controller with 10-Bit
Current, Voltage Monitor, and 4 LED Drivers
28
Deglitching of Digital Comparators
The five digital comparators (undervoltage/overvoltage
warning and critical, overcurrent warning) all have a
user-selectable deglitching feature that requires two
consecutive positive compares before the device takes
action as determined by the particular compare and the
setting of the PROT input.
The deglitching functions are enabled or disabled by
registers dgl_i, dgl_uv, and dgl_ov (Tables 37, 38, and
39). Writing a 1 to the appropriate bit location in these
registers enables the deglitch function for the corre-
sponding digital comparator.
Circular Buffer
The device features two 10-bit circular buffers (in vola-
tile memory) that contain a history of the 50 most-recent
voltage and current digital-conversion results. These cir-
cular buffers can be read back through the I
2
C interface.
The recording of new data to the buffer for a given signal
is stopped under any of the following conditions:
"   The hot-swap channel is shut down because of a fault
condition.
"   A read of the circular buffer base address is per-
formed through the I
2
C interface.
"   The hot-swap channel is turned off by a combination
of the EN1, EN2, or ON signals.
The buffers allow the user to recall the voltage and cur-
rent waveforms for analysis and troubleshooting. The
buffer contents are accessed through the I
2
C interface
at two fixed addresses in the device register address
space (see Table 40).
Each buffer can also be stopped under user control by
register cbuf_chx_store (see Table 41).
Table 37. OI Warning Comparators Deglitch Enable Register Format
Table 38. UV Warning and Critical Comparators Deglitch Enable Register Format
Table 39. OV Warning and Critical Comparators Deglitch Enable Register Format
Description:
Deglitch enable register for overcurrent warning digital comparators
Register Title:
dgl_i
Register Address:
0x3C
RESET
VALUE
R
R
R
R
R
R
R/W
R/W






Unused
dgl_i
0x00
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0

Description:
Deglitch enable register for undervoltage warning and critical digital comparators
Register Title:
dgl_uv
Register Address:
0x3D
RESET
VALUE
R
R
R
R
R/W
R/W
R/W
R/W




Unused
Unused
dgl_uv2
dgl_uv1
0x00
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0

Description:
Deglitch enable register for overvoltage warning and critical digital comparators
Register Title:
dgl_ov
Register Address:
0x3E
RESET
VALUE
R
R
R
R
R/W
R/W
R/W
R/W




Unused
Unused
dgl_ov2
dgl_ov1
0x00
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0

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相關代理商/技術參數
參數描述
MAX5978ETJ+ 功能描述:熱插拔功率分布 0-16V 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
MAX5978ETJ+T 功能描述:熱插拔功率分布 0-16V 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
MAX5980EVKIT# 功能描述:電源開關 IC - POE / LAN MAX5980 Eval Kit RoHS:否 制造商:Fairchild Semiconductor 開關數量:Single 開關配置:SPST 開啟電阻(最大值):7.3 Ohms 串話: 帶寬: 開啟時間(最大值):13 ns 關閉時間(最大值):20 ns 切換電壓(最大): 工作電源電壓:8 V to 26 V 最大工作溫度:+ 125 C 安裝風格:Through Hole 封裝 / 箱體:TO-220F-6
MAX5980EVKIT+ 功能描述:電源開關 IC - POE / LAN RoHS:否 制造商:Fairchild Semiconductor 開關數量:Single 開關配置:SPST 開啟電阻(最大值):7.3 Ohms 串話: 帶寬: 開啟時間(最大值):13 ns 關閉時間(最大值):20 ns 切換電壓(最大): 工作電源電壓:8 V to 26 V 最大工作溫度:+ 125 C 安裝風格:Through Hole 封裝 / 箱體:TO-220F-6
MAX5980GTJ+ 功能描述:電源開關 IC - POE / LAN 0-16V Hot-Swap Controller RoHS:否 制造商:Fairchild Semiconductor 開關數量:Single 開關配置:SPST 開啟電阻(最大值):7.3 Ohms 串話: 帶寬: 開啟時間(最大值):13 ns 關閉時間(最大值):20 ns 切換電壓(最大): 工作電源電壓:8 V to 26 V 最大工作溫度:+ 125 C 安裝風格:Through Hole 封裝 / 箱體:TO-220F-6
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