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| 型号： | MAX5977BETP+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/13页 |
| 文件大小： | 0K |
| 描述： | IC CTLR SNGL-CH HOT-SWAP 20TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 热交换控制器 |
| 应用： | 通用 |
| 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： | 20-WFQFN 裸露焊盘 |
| 供应商设备封装： | 20-TQFN-EP（4x4） |
| 包装： | 带卷 (TR) |
EVALUA
VAILABL
A
19-5553; Rev 2; 7/11
TION KIT
E
1V to 16V, Single-Channel, Hot-Swap Controllers
with Precision Current-Sensing Output
General Description
The MAX5977A/MAX5977B hot-swap controllers provide
complete protection for systems with a 1V to 16V single-
supply voltage.
During the initial insertion, the hot-swap controllers
limit the inrush current from damaging the board or
from shorting out the backplane. When the input volt-
age is above the undervoltage threshold and below the
overvoltage threshold, a 5 F A current source powered
from the internal 5V charge pump drives the gate of an
external n-channel MOSFET, providing a slow turn-on
response. An internal current-sense amplifier in the IC
monitors the current across an external shunt resistor,
providing current sensing for wide input-sense voltage
range. The devices provide two levels of overcurrent
circuit-breaker protections: a fast-trip threshold for a fast
turn-off and a lower slow-trip threshold for a delayed
turn-off.
Exceeding either of the overcurrent circuit-breaker
thresholds forces the device into fault mode where the
external n-channel MOSFET is disabled. The MAX5977
is available in two versions that provide a latched-off
(MAX5977A) or autoretry (MAX5977B) output when the
device is in fault mode.
Features
S 1% Accurate Current-Sense Amplifier Output
S Hot-Swap Monitors Operation from 1V to 16V
S Integrated Charge Pump Fully Enhances the
External n-Channel FET (V GATE = V IN + 5V)
S VariableSpeed/BiLevel K Fault Protection Provides
Electronic Circuit-Breaker Function
S Output Latched Off After Fault Condition
(MAX5977A)
S Autoretry After Fault Condition (MAX5977B)
S Power-Good Indicator
S Calibration Mode
S Small, 20-Pin, 4mm x 4mm TQFN-EP Package
Applications
Servers
Storage Systems
Network Switches and Routers
General Hot-Swap
Ordering Information
A calibration mode allows further calibration of the inte-
grated transconductance amplifier for production testing
PART
MAX5977A ETP+
PIN-PACKAGE
20 TQFN-EP*
FAULT RESPONSE
Latched
of the final design. The devices are offered in a 20-pin,
4mm x 4mm, TQFN-EP package and are fully specified
from -40 N C to +85 N C.
VariableSpeed/BiLevel is a trademark of Maxim Integrated
Products, Inc.
MAX5977B ETP+ 20 TQFN-EP* Autoretry
Note: All devices are specified over the -40 N C to +85 N C oper-
ating temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Typical Operating Circuit
V IN
1V TO 16V
R SCOMP
R FCOMP
R SENSE
R GATE
C L
TO LOAD
R CAL
SCOMP
FCOMP
IN
SENSE
GATE
C GATE
CALSENSE
SOURCE
CSOUT
CURRENT-SENSE
AMPLIFIER OUTPUT
R CSOUT
CALIBRATION
MODE INPUT
CAL
MAX5977A
MAX5977B
+3.3V
2.7V TO 16V
PWR
FAULT
FAULT OUTPUT
AGND
GND
PG
POWER-GOOD OUTPUT
_______________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5977ETP+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| 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 |
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