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| 型号： | LTC4261CUFD-2#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源管理 |
| 英文描述： | Negative Voltage Hot Swap Controllers with ADC and I2C Monitoring; Package: QFN; No of Pins: 24; Temperature Range: 0°C to +70°C |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC24 |
| 封装： | 4 X 5 MM, LEAD FREE, PLASTIC, QFN-24 |
| 文件页数： | 22/34页 |
| 文件大小： | 357K |
| 代理商： | LTC4261CUFD-2#PBF |
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LTC4261/LTC4261-2
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Table 3. STATUS Register A (00h)—Read Only
BIT
NAME
OPERATION
A7
FET On
Indicates State of FET; 1 = FET On, 0 = FET Off
A6
PGIO Input
Indicates State of the PGIO Pin when Configured to General Purpose Input: 1 = PGIO High, 0 = PGIO Low
A5
FET Short
Indicates Potential FET Short if Current Sense Voltage Exceeds 2mV While FET is Off; 1 = FET is Shorted, 0 = FET is Not Shorted
A4
EN
Indicates State of the EN Pin; 1 = EN Pin High, 0 = EN Pin Low
A3
Power Bad
Indicates Power is Bad when PGI is High at the End of the PGI Check Timer; 1 = PGI High, 0 = PGI Low
A2
Overcurrent
Indicates Overcurrent Condition; 1 = Overcurrent, 0 = Not Overcurrent
A1
Undervoltage
Indicates Input Undervoltage when Both UVH and UVL are Low; 1 = UVH and UVL Low, 0 = UVH or UVL High
A0
Overvoltage
Indicates Input Overvoltage when OV is High; 1 = OV High, 0 = OV Low
Table 4. FAULT Register B (01h)—Read/Write
BIT
NAME
OPERATION
B7
External Fault
Occurred
Latched to 1 if FLTIN Goes Low; 1 = FLTIN Low State Detected, 0 = FLTIN has Not Been Low
B6
PGIO Input
High Occurred
Latched to 1 if the PGIO Pin Goes High when Configured to General Purpose Input; 1 = PGIO High Detected,
0 = PGIO has Been Low
B5
FET Short Fault
Occurred
Indicates Potential FET Short was Detected When Measured Current Sense Voltage Exceeded 2mV While FET was Off;
1 = FET Short Fault Occurred, 0 = No FET Short Fault
B4
EN Changed
State
Indicates That a Board was Inserted or Extracted when EN Changed State; 1 = EN Changed State, 0 = EN Unchanged
B3
Power Bad
Fault Occurred
Indicates Power was Bad when PGI was High at the End of the PGI Check Timer; 1 = Power Bad Fault Occurred,
0 = No Power Bad Fault
B2
Overcurrent
Fault Occurred
Indicates Overcurrent Fault Occurred; 1 = Overcurrent Fault Occurred, 0 = No Overcurrent Fault
B1
Undervoltage
Fault Occurred
Indicates Input Undervoltage Fault Occurred when Both UVH and UVL went Low; 1 = Undervoltage Fault Occurred,
0 = No Undervoltage Fault
B0
Overvoltage
Fault Occurred
Indicates Input Overvoltage Fault Occurred when OV was High; 1 = Overvoltage Fault Occurred, 0 = No Overvoltage Fault
Table 5. ALERT Register C (02h)—Read/Write
BIT
NAME
OPERATION
C7
External Fault
Alert
Enables Alert for External Fault When FLTIN was Low; 1 = Enable Alert, 0 = Disable Alert (Default)
C6
PGIO Output
Output Data Bit to PGIO Pin when Configured as Output. Defaults to 0
C5
FET Short Alert Enables Alert for FET Short Fault; 1 = Enable Alert, 0 = Disable Alert (Default)
C4
EN State
Change Alert
Enables Alert when EN Changed State; 1 = Enable Alert, 0 Disable Alert (Default)
C3
Power Bad
Alert
Enables Alert for Power Bad Fault; 1 = Enable Alert, 0 Disable Alert (Default)
C2
Overcurrent
Alert
Enables Alert for Overcurrent Fault; 1 = Enable Alert, 0 Disable Alert (Default)
C1
Undervoltage
Alert
Enables Alert for Undervoltage Fault; 1 = Enable Alert, 0 Disable Alert (Default)
C0
Overvoltage
Alert
Enables Alert for Overvoltage Fault; 1 = Enable Alert, 0 Disable Alert (Default)
APPLICATIONS INFORMATION
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| LTC4261IGN#TRPBF | 功能描述:IC CTRLR HOTSWAP W/ADC 28-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:119 系列:- 类型:热交换控制器 应用:通用型，PCI Express? 内部开关:无 电流限制:- 电源电压:3.3V，12V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:80-TQFP 供应商设备封装:80-TQFP（12x12） 包装:托盘 产品目录页面:1423 (CN2011-ZH PDF) |
| LTC4261IGN-2 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Negative Voltage Hot Swap Controllers with ADC and I2C Monitoring |
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