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| 型号： | ADM1172 |
| 厂商： | Analog Devices, Inc. |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | 2.7 V to 16.5 V Hot Swap Controller with Power-Fail Comparator |
| 中文描述： | 2.7 V至16.5 V热风热插拔控制器与电源失效比较 |
| 文件页数： | 5/16页 |
| 文件大小： | 181K |
| 代理商： | ADM1172 |
ADM1172
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
Rev. 0 | Page 5 of 16
0
TIMER
1
GND
2
PFO
3
ON
4
V
CC
SENSE
8
7
PFI
6
GATE
5
ADM1172-1AUJ
TOP VIEW
(Not to Scale)
0
ON-CLR
TIMER
1
GND
2
PFO
3
4
V
CC
SENSE
8
7
PFI
6
GATE
5
ADM1172-2AUJ
TOP VIEW
(Not to Scale)
Figure 2. Pin Configuration, 1AUJ Model
Figure 3. Pin Configuration, 2AUJ Model
Table 4. Pin Function Descriptions
Pin No.
Mnemonic
1
TIMER
Description
Timer Input Pin. The initial and circuit breaker timing cycles are set by this external capacitor. The initial timing
delay is 272.9 ms/μF, and 21.7 ms/μF for a circuit breaker delay. When the TIMER pin is pulled beyond the upper
threshold, the GATE turns off.
Chip Ground Pin.
Power-Fail Comparator Output. Digital output from the power-fail comparator.
Input Pin. The ON (ON-CLR) pin is an input to a comparator that has a low-to-high threshold of 1.3 V with 80 mV
hysteresis and a glitch filter. The ADM1172 is reset when the ON (ON-CLR) pin is low. When the ON (ON-
Error!
)
pin is high, the ADM1172 is enabled. A rising edge on this pin has the added function of clearing a fault and
restarting the device on the latched off model, the ADM1172-2.
Gate Output Pin. An internal charge pump provides a 12 μA pull-up current to drive the gate of an N-channel
MOSFET. In an overcurrent condition, the ADM1172 controls the external FET to maintain a constant load
current.
Power-Fail Comparator Input. Comparator threshold = 0.6 V.
Current Limit Sense Input Pin. The current limit is set via a sense resistor between the V
CC
and SENSE pins. In an
overcurrent condition, the gate of the FET is controlled to maintain the SENSE voltage at 50 mV. When this limit is
reached, the TIMER circuit breaker mode is activated. The circuit breaker limit can be disabled by connecting the
V
CC
pin and SENSE pin together.
Positive Supply Input Pin. The ADM1172 operates between 2.7 V to 16.5 V. An undervoltage lockout (UVLO)
circuit with a glitch filter resets the ADM1172 when the supply voltage drops below the specified UVLO limit.
2
3
4
GND
PFO
ON (ON-CLR)
5
GATE
6
7
PFI
SENSE
8
V
CC
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| ADM1172-1AUJZ-RL7 | 功能描述:IC CTRLR HOTSWAP 16.5V TSOT-23-8 RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 标准包装:50 系列:- 类型:热交换控制器 应用:-48V 远程电力系统，AdvancedTCA ? 系统，高可用性 内部开关:无 电流限制:可调 电源电压:11.5 V ~ 14.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
| ADM1172-2AUJZ-RL7 | 功能描述:IC CTRLR HOTSWAP 16.5V TSOT-23-8 RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 标准包装:50 系列:- 类型:热交换控制器 应用:-48V 远程电力系统，AdvancedTCA ? 系统，高可用性 内部开关:无 电流限制:可调 电源电压:11.5 V ~ 14.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
| ADM1175 | 制造商:AD 制造商全称:Analog Devices 功能描述:Hot Swap Controller and Digital Power Monitor with Convert Pin |
| ADM1175-1ARMZ-R7 | 功能描述:IC CTRLR HOTSWAP 16.5V 10-MSOP 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) |
| ADM1175-2ARMZ-R7 | 功能描述:IC CTRLR HOTSWAP 16.5V 10-MSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 热交换 系列:- 标准包装:50 系列:- 类型:热交换控制器 应用:-48V 远程电力系统，AdvancedTCA ? 系统，高可用性 内部开关:无 电流限制:可调 电源电压:11.5 V ~ 14.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
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