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参数资料
| 型号： | MAX5978ETJ+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 28/38页 |
| 文件大小： | 2412K |
| 描述： | IC CTLR HOT-SWAP 32TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 类型： | 热交换控制器 |
| 应用： | 刀峰式服务器，网络应用设备 |
| 内部开关： | 无 |
| 电流限制： | 可调 |
| 电源电压： | 2.7 V ~ 16 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 供应商设备封装： | 32-TQFN-EP（5x5） |
| 包装： | 管件 |
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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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相关代理商/技术参数 |
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|---|---|
| MAX5978ETJ+ | 功能描述:热插拔功率分布 0-16V Hot-Swap Controller RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5978ETJ+T | 功能描述:热插拔功率分布 0-16V Hot-Swap Controller RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5980EVKIT# | 功能描述:电源开关 IC - POE / LAN MAX5980 Eval Kit RoHS:否 制造商:Fairchild Semiconductor 开关数量:Single 开关配置:SPST 开启电阻（最大值）:7.3 Ohms 串话: 带宽: 开启时间（最大值）:13 ns 关闭时间（最大值）:20 ns 切换电压（最大）: 工作电源电压:8 V to 26 V 最大工作温度:+ 125 C 安装风格:Through Hole 封装 / 箱体:TO-220F-6 |
| MAX5980EVKIT+ | 功能描述:电源开关 IC - POE / LAN RoHS:否 制造商:Fairchild Semiconductor 开关数量:Single 开关配置:SPST 开启电阻（最大值）:7.3 Ohms 串话: 带宽: 开启时间（最大值）:13 ns 关闭时间（最大值）:20 ns 切换电压（最大）: 工作电源电压:8 V to 26 V 最大工作温度:+ 125 C 安装风格:Through Hole 封装 / 箱体:TO-220F-6 |
| MAX5980GTJ+ | 功能描述:电源开关 IC - POE / LAN 0-16V Hot-Swap Controller RoHS:否 制造商:Fairchild Semiconductor 开关数量:Single 开关配置:SPST 开启电阻（最大值）:7.3 Ohms 串话: 带宽: 开启时间（最大值）:13 ns 关闭时间（最大值）:20 ns 切换电压（最大）: 工作电源电压:8 V to 26 V 最大工作温度:+ 125 C 安装风格:Through Hole 封装 / 箱体:TO-220F-6 |
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