Rainbow Electronics MAX4995 - Manual

General Description
The MAX4995A/MAX4995AF/MAX4995AL/MAX4995B/
MAX4995C programmable current-limit switches feature
internal current limiting to prevent damage to host
devices due to faulty load conditions. These analog
switches feature a low 130mΩ (typ) on-resistance and
operate from a +1.7V to +5.5V input voltage range. The
current limit is adjustable from 50mA to 600mA, making
these devices ideal for SDIO (secure digital input/out-
put) and other load-switching applications.
Each device in the family handles an overcurrent event
differently depending on the option selected. The
MAX4995A/MAX4995AF/MAX4995AL go into an autoretry
mode, the MAX4995B latches off the switch, and the
MAX4995C places the device in a continuous current-limit
mode. Additional safety features include thermal shut-
down to prevent overheating and reverse-current blocking
to prevent current from being driven back into the source.
The MAX4995A/MAX4995AF/MAX4995AL/MAX4995B/
MAX4995C are available in a tiny 10-pin, 1.4mm x 1.8mm
UTQFN package and operate over the -40°C to +125°C
extended temperature range.
Applications
SDIO Ports
USB Ports
Notebook VGA Ports
GPS
Cell Phones
MP3 Players
UTCA/ATCA Platforms
Features
♦ 50mA to 600mA Programmable Current Limit
♦ ±10% Accurate Current Limit
♦ Overload FLAG Threshold
♦ Low Dropout Voltage
♦ Short-Circuit Protection
♦ Thermal Shutdown
♦ Reverse-Current Protection
♦ 170µA (typ) Supply Current
♦ +1.7V to +5.5V Supply Voltage Range
♦ Tiny 10-Pin, 1.4mm x 1.8mm UTQFN Package
MAX4995A/AF/AL/MAX4995B/MAX4995C
50mA to 600mA Programmable
Current-Limit Switches
________________________________________________________________ Maxim Integrated Products 1
Ordering Information/Selector Guide
19-4363; Rev 0; 11/08
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.
All devices operate over the -40°C to +125°C temperature range.
+Denotes a lead-free package.
*Future product. Contact factory for availability.
Ordering Information/Selector Guide continued at end of data sheet.
PART
PIN-
PACKAGE
ON POLARITY
OVERCURRENT
RESPONSE
SHORT-CIRCUIT
RESPONSE
TOP MARK
MAX4995AAUK+T* 6 SOT23 ActIve-High Autoretry Normal +ACNZ
MAX4995AAVB+T 10 UTQFN Active-High Autoretry Normal +AAM
MAX4995AFAUK+T* 6 SOT23 Active-High Autoretry Fast +ACOE
MAX4995AFAVB+T 10 UTQFN Active-High Autoretry Fast +AAR
MAX4995ALAUK+T* 6 SOT23 Active-Low Autoretry Normal +ACDA
Typical Operating Circuit appears at end of data sheet.
Pin Configurations
3 5
10 8
IN
* ( ) FOR THE MAX4995AL ONLY.
OUT
MAX4995A/MAX4995AF
MAX4995AL/MAX4995B
MAX4995C
4
9
N.C.
ON (ON)* GND
1.4mm x 1.8mm
UTQFN
TOP VIEW
SETI
7 OUT 1 IN
6 N.C. 2 FLAG
Pin Configurations continued at end of data sheet.