MAX14525 Datasheet, PDF (1/7 Pages) Maxim Integrated Products – Battery Switch with Four Enable Inputs

19-4356; Rev 0; 10/08
Battery Switch with Four Enable Inputs
General Description
The MAX14525 features a low R_ON 35mΩ (typ) load
switch with four unique enable inputs. The MAX14525
is ideal for disconnecting the lithium-ion (Li+) battery
from the loads in portable devices such as cell phones.
The MAX14525 operates from a +2.2V to +5.5V supply
voltage.
The MAX14525 features an extremely low 0.8µA (typ)
quiescent supply current to maximize battery life in
portable devices. It is enabled from four possible
inputs: external charger connection capable of high
voltage up to +28V, travel adapter (TA), on key (ON_K),
factory mode enable (JIG), and switch enable (S_EN).
The S_EN input is internally ANDed with the switched
battery connection (IN).
The MAX14525 is available in a small 8-pin, 2mm x
2mm TDFN package and operates over the -40°C to
+85°C extended temperature range.
Applications
Cell Phones
PDAs
GPS
UMPC Computers
Digital Cameras
Features
♦ Low 35mΩ (typ) R_ON Load Switch
♦ Ultra Low, 0.8µA (typ) Supply Current
♦ Four Enable Inputs:
TA: +28V (max) Capable
ON_K: Accurate +3V Trigger Enable
JIG: Factory Mode Enable
S_EN: Logically ANDed with IN
♦ Space-Saving 8-Pin, 2mm x 2mm TDFN Package
♦ Controlled Turn-On to Limit dI/dt Pulses Due to
Lead Inductance
Ordering Information
PART
MAX14525ETA+T
PIN-PACKAGE
8 TDFN-EP*
TOP MARK
ACQ
Note: The device is specified over the -40°C to +85°C operating
temperature range.
+Denotes a lead-free/RoHS-compliant package.
*EP = Exposed pad.
Typical Application Circuit
BAT
MAX14525
IN
Li-ION
BATTERY
ON_K
ON
BUTTON
3.0V
TA
2V
JIG
P
S_EN
SLEW RATE
CONTROL
CHARGER
PHONE
LOADS
AC
ADAPTER
GND
TOP VIEW
Pin Configuration
BAT 1 +
JIG 2
ON_K 3
S_EN 4
MAX14525
*EP
8 IN
7 IN
6 TA
5 GND
TDFN-EP
2mm x 2mm
*CONNECT EXPOSED PAD TO GND.
________________________________________________________________ Maxim Integrated Products 1
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.