MAX16946GTE/V+ by Analog Devices

Remote Antenna, Current-Sense and LDO/Switches

Status: Active
Series: MAX16946
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock
The MAX16946/MAX16947 high-voltage, high-side, current-sense LDO/switches feature internal current limiting to prevent system damage due to fault conditions. The MAX16946 provides a fixed regulated 8.5V output voltage or an adjustable 3.3V to 15V output voltage. The MAX16946 can also be configured as a switch, while the MAX16947 is only available as a switch. The input voltage range for both devices extends from 4.5V to 18V (45V tolerant), making the devices ideal for providing phantom power to remote radio-frequency low-noise amplifiers (LNAs) in automotive applications. The devices monitor the load current and provide an analog output voltage proportional to the sensed load current. Accurate internal current limit protects the input supply against both overload and short-circuit conditions. Two open-drain fault indicator outputs indicate to the microprocessor when a short circuit, an open-load condition, or a short-to-battery condition exists. An overtemperature shutdown is also indicated by means of the current-sense amplifier's output voltage. A fault-blanking feature allows the devices to ignore momentary faults such as those caused by the charging of capacitive loads during hot-swapping, preventing false alarms to the system. The devices feature short-to-battery protection to latch off the internal LDO/pass switch during a short-to-battery event. During a thermal overload, the devices reduce power dissipation by going into thermal shutdown. They include an active-low, high-voltage-compatible shutdown input to place them in low-power shutdown mode. The MAX16946 is available in thermally enhanced, 16-pin TQFN-EP and QSOP-EP packages. The MAX16947 is available in a 16-pin QSOP package. Both devices operate over the -40°C to +105°C temperature range.

Where to Buy

Prices starting from US$2.88

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element14
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Farnell
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Features

Switch Phantom Power-On/-Off Under µC Control
Precision Adjustable Current Limit 300mA (max), TA = +105°C 500mA (max), TA = +85°C (MAX16946 in SW Mode Only)
300mA (max), TA = +105°C
500mA (max), TA = +85°C (MAX16946 in SW Mode Only)
Regulated Output Voltage (MAX16946)—8.5V Fixed or Adjustable Between 3.3V and 15V
Current Measurement Analog Voltage Output
Detect Open-Load and Short-Circuit Conditions
Provide Open-Drain Fault Signals (Active-Low SC and Active-Low OL)
Overcurrent Blanking During Startup
Thermal Shutdown
AEC-Q100 Qualified
-40°C to +105°C Operating Temperature Range

Specifications

Current Limit (mA) (min) 300
Current Limit (mA) (max) 500
# Power Switches 1
Fault Indicator Yes
Current Limit Set By Resistor
Lowest Adj. Setting (A) 0.3
VSUPPLY (V) (min) 4.5
VSUPPLY (V) (max) 18
Oper. Temp. (°C) -40 to +105
Package/Pins QSOP/16TQFN/16
BudgetaryPrice (See Notes) 2.06

Last 6 months Inventory & Pricing History

MAX16946GTE/V+ Special Function by Analog Devices

CURRENT SENSE LDO/SWITCH TQFN-16

Semiconductors - ICs
> Special Function
Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

IC Function Remote Antenna Current Sense LDO/Switch
Supply Voltage Min 4.5V
Supply Voltage Max 18V
IC Package Type TQFN
No. of Pins 16Pins
Operating Temperature Min -40°C
Operating Temperature Max 105°C
Product Range -
Automotive Qualification Standard AEC-Q100
RoHS Phthalates Compliant To Be Advised
MSL -
SVHC No SVHC (15-Jan-2018)

Last 6 months Inventory & Pricing History

Alternative Descriptions

Remote Antenna, Current-Sense | Analog Devices
CURRENT SENSE LDO/SWITCH, TQFN-16 | element14

Frequently Asked Questions

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Is the MAX16946GTE/V+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Analog Devices, element14 and Farnell have stock available or on a lead time for MAX16946GTE/V+ .

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