MAX14575A Datasheet, PDF (1/11 Pages) Maxim Integrated Products – 250mA to 2.5A Adjustable Current-Limit Switches

MAX14575A/MAX14575AL/
MAX14575B/MAX14575C
250mA to 2.5A Adjustable Current-Limit Switches
General Description
The MAX14575A/MAX14575AL/MAX14575B/MAX14575C
programmable current-limit switches feature internal
current limiting to prevent damage to host devices due
to faulty load conditions. These current-limit switches
feature a low 32mI (typ) on-resistance and operate from
a +2.3V to +5.5V input voltage range. The current limit
is adjustable from 250mA to 2.5A, making these devices
ideal for charging a large load capacitor as well as for
high-current load switching applications.
Each device in the family handles an overcurrent event
differently depending on the option selected. The
MAX14575A/MAX14575AL feature an autoretry mode,
the MAX14575A has active high, and the MAX14575AL
has active-low EN polarity. The MAX14575B has latch-
off mode, and the MAX14575C features a continuous
current-limit mode. Additional safety features include
thermal shutdown protection to prevent overheating and
reverse current blocking to prevent current from being
driven back into the source (see the Selector Guide).
The MAX14575A/MAX14575AL/MAX14575B/MAX14575C
are available in a small 8-pin, 2mm x 2mm TDFN pack-
age and operate over the -40NC to +85NC extended
temperature range.
Features
S Adjustable Current Limit (250mA to 2500mA)
S Accurate ±10% Overload Current Limit (500mA to
2.5A)
S 32mI (typ) Low RON
S +2.3V to +5.5V Supply Voltage Range
S Reverse Current Protection
S Short-Circuit Protection
S Thermal Shutdown Protection
S 130µA (typ) Low Supply Current
S 1µA (max) Shutdown Reverse Current
S Small, 8-Pin, 2mm x 2mm TDFN Package
RF Power Amplifier in
Cell Phones
USB Ports
Data Modem Cards
Applications
Portable Media Players
UTCA/ATCA Platforms
SDXC Card Power-Supply
Protection
Ordering Information/Selector Guide
PART
PIN-PACKAGE
TEMP RANGE
MAX14575AETA+T
8 TDFN-EP*
MAX14575ALETA+T
8 TDFN-EP*
MAX14575BETA+T
8 TDFN-EP*
MAX14575CETA+T
8 TDFN-EP*
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
*EP = Exposed pad.
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
EN POLARITY
Active-High
Active-Low
Active-High
Active-High
OVERCURRENT
RESPONSE
Autoretry
Autoretry
Latch-off
Continuous
TOP MARK
BMV
BMW
BMX
BMY
Typical Operating Circuit
POWER
SUPPLY
MAX14575A/MAX14575AL*
MAX14575B/MAX14575C
IN
1µF
BIAS
VOLTAGE
OUT
1µF
VPULLUP
SETI
µP
RSETI
10kΩ
FLAG
EN(EN)*
*() FOR THE MAX14575AL ONLY
CURRENT
REFERENCE
GND
CHARGE
PUMP
CONTROL
LOGIC
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
LOAD
19-6458; Rev 0; 9/12