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参数资料
| 型号： | MAX16948AGTE/V+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | IC LDO/SWITCH ADJ DUAL 16TQFN |
| 标准包装： | 2,500 |
| 应用： | 汽车系统，远程电源 |
| 电流 - 电源： | 2.1mA |
| 电源电压： | 4.5 V ~ 28 V |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | * |
| 封装/外壳： | * |
| 供应商设备封装： | * |
| 包装： | * |
EVALUATION KIT AVAILABLE
MAX16948
Automotive Dual Remote Antenna
Current-Sense LDO/Switch
General Description
The MAX16948 is a dual high-voltage, current-sensing low
dropout linear regulator (LDO)/switch designed to operate
with an input voltage range from 4.5V to 28V (45V load
dump tolerant). The device provides phantom power over
coax cable to remote radio frequency low-noise amplifiers
(LNAs) in automotive systems with a maximum current of
300mA per channel. The device also provides a fixed regu-
lated output voltage of 8.5V or an adjustable 1V to 12.5V out-
put voltage. The device can also be configured as a switch.
The device monitors the load current and provides an ana-
log output current proportional to the sensed load current.
Accurate internal current limits protect the input supply
against both overcurrent and short-circuit conditions. The
device features an open-drain error output for each channel to
indicate to the microcontroller ( F C) when a fault has occurred.
The device features short-to-battery protection to latch off the
internal LDO/switch during a short-to-battery event. During a
thermal overload, the device reduces power dissipation by
going into thermal shutdown. It includes two independent
active-low, high-voltage-compatible shutdown inputs to
place each channel in a low-power shutdown mode.
The device is available in a 16-pin TQFN package with
exposed pad, a 16-pin QSOP package with exposed
pad, or a 16-pin QSOP package and is fully specified
over the -40 N C to +105 N C temperature range.
Features
S 2-Channel LDO/Switch with Precision-Adjustable
Current-Sense (Up to 300mA Per Channel)
S Wide Input Voltage Range: 4.5V to 28V (45V Load
Dump Tolerant)
S On/Off Switching or Regulation of Phantom Power
Under μC Control
S Reverse Current Protection
S Output Short-to-Battery Protection
S Load Current Monitoring to Detect Open-Load/
Normal/Short-Circuit Conditions
S Open-Drain Error Status Signaling to μC
S Input Overvoltage Shutdown
S High Power-Supply Rejection Ratio (73dB)
Applications
Remote LNA Phantom Power
Automotive Camera and Sensor Power
Ordering Information appears at end of data sheet.
For related parts and recommended products to use with this part,
Typical Operating Circuits
BATTERY INPUT
D IN
C IN1
C IN2
μC SUPPLY
IN
OUT1
L OUT1
CABLE 1
L LOAD1
R PU1
R PU2
R1 1
C OUT1
D OUT1
C LOAD1
R LOAD1
ERROR FLAGS
ERR1
ERR2
FB1
C REG
REG
SENSE1
MAX16948
LIM1
R2 1
CURRENT-SENSE
OUTPUTS TO ADC
R SENSE1
C SENSE1
C LIM1
R LIM2
L OUT2
CABLE 2
L LOAD2
R SENSE2
C SENSE2
SENSE2
OUT2
R1 2
C OUT2
D OUT2
C LOAD2
R LOAD2
FB2
OFF ON
SHDN1
SHDN2
GND
LIM2
R2 2
C LIM2
R LIM2
Typical Operating Circuits continued at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
19-6054; Rev 2; 5/13
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX16948BGEE/V+ | 制造商:Maxim Integrated Products 功能描述:AUTOMOTIVE DUAL REMOTE ANTENNA CURRENT-SENSE LDO/SWITCH - Rail/Tube |
| MAX16948BGEE/V+T | 制造商:Maxim Integrated Products 功能描述:AUTOMOTIVE DUAL REMOTE ANTENNA CURRENT-SENSE LDO/SWITCH - Tape and Reel |
| MAX1694EUB | 功能描述:电源开关 IC - USB USB Current-Limited Switch w/Fault Blank RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| MAX1694EUB+ | 功能描述:电源开关 IC - USB USB Current-Limited Switch w/Fault Blank RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| MAX1694EUB+T | 功能描述:电源开关 IC - USB USB Current-Limited Switch w/Fault Blank RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
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