Rainbow Electronics MAX16913A - Manual

General Description
The MAX16913/MAX16913A high-voltage high-side
current-sense switches feature internal current limiting
to prevent system damage due to fault conditions. The
MAX16913/MAX16913A input voltage range extends
from 5V to 18V, making them ideal for providing phan-
tom power to remote radio-frequency low-noise ampli-
fiers (LNAs) in automotive applications.
The MAX16913/MAX16913A monitor the load current
and provide an analog output voltage proportional to
the sensed load current. In addition to current sensing,
accurate internal current-limiting circuitry protects the
input supply against both overload and short-circuit
conditions. Two open-drain fault indicator outputs notify
the microprocessor when a short circuit, an open-load
condition, or a short-to-battery condition exists. For the
MAX16913A, the open-load threshold is externally
adjustable using a resistive divider.
A fault-blanking feature enables the circuit to ignore
momentary faults, such as those caused by the initial
charging of a capacitive load when hot swapping,
preventing false alarms to the system. Built-in thermal-
overload protection turns off the switch when the die
temperature exceeds +150°C (min). The MAX16913/
MAX16913A also feature a short-to-battery detection
every time the internal switch turns on. These devices
provide an active-high control input to put the devices
in low-power shutdown mode.
The MAX16913/MAX16913A are available in the 16-pin
QSOP package and operate over the -40°C to +105°C
temperature range.
Applications
Remote LNA Phantom Power
Automotive Safety and Infotainment
Features
♦ Switch Phantom Power-On/-Off Under µC Control
♦ Analog Current Measurement Output
♦ Adjustable Current Limiting (340mA Maximum)
♦ Detect Open-Load and Short-Circuit Conditions
♦ Provide Open-Drain Fault Signals (SC and OL)
♦ Overcurrent Blanking During Startup
♦ Thermal Shutdown
♦ AEC-Q100 Qualified (/V Versions Only)
♦ -40°C to +105°C Operating Temperature Range
MAX16913/MAX16913A
Remote Antenna Current-Sense
Amplifier and Switches
________________________________________________________________ Maxim Integrated Products 1
Ordering Information
19-4186; Rev 0; 7/08
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.
+ Denotes a lead(Pb)-free/RoHS-compliant package.
* /V denotes an automotive qualified part.
EVALUATION KIT
AVAILABLE
PA R T
T EM P
R A N G E
PIN -
PA C K A G E
O PEN - L O A D
T H R ESH O L D
M A X1 6 9 1 3 G E E +
- 40°C to
+ 105° C
16 QS OP Inter nal l y S et
M AX 16913GE E /V + *
- 40°C to
+ 105° C
16 QS OP Inter nal l y S et
M A X1 6 9 1 3 A G E E +
- 40°C to
+ 105° C
16 QS OP
E xter nal l y
Ad j ustab l e
M AX 16913AG E E /V + *
- 40°C to
+ 105° C
16 QS OP
E xter nal l y
Ad j ustab l e
Pin Configuration appears at end of data sheet.
Typical Operating Circuits
MAX16913
SC
OL
GND
OLT
IN
SHDN
SENS
BATTERY
INPUT
AOUT TO ADC INPUT
OUT
TO
PROTECTED
LOAD (LNA)
3.3V TO 5V
MAX16913A
REF
REF
SC
OL
GND
OLT
IN
SHDN
SENS
BATTERY
INPUT
AOUT TO ADC INPUT
OUT
TO
PROTECTED
LOAD (LNA)
3.3V TO 5V