ISL9209B
Electrical Specifications
PARAMETER
POWER MOSFET
ON-Resistance
r
DS(ON)
Measured at 500mA, 4.3V < V
IN
< 5.5V
-
250
450
m惟
Typical values are tested at VIN = 5V and +25擄C Ambient Temperature, maximum and minimum values are
guaranteed over the recommended operating conditions, unless otherwise noted.
(Continued)
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Pin Descriptions
VIN (Pin1, 2)
The input power source. The VIN can withstand 30V input.
VB (Pin 8)
Battery voltage monitoring input. This pin is connected to the
battery pack positive terminal via an isolation resistor.
GND (Pin 3)
System ground reference.
ILIM (Pin 9)
Overcurrent protection threshold setting pin. Connect a
resistor between this pin and GND to set the OCP threshold.
WRN (Pin 4)
WRN is an open-drain logic output that turns LOW when any
protection event occurs.
OUT (Pin 10, 11)
Output pin.
NC (Pin 5, 6, 12)
No connection and must be left floating.
EPAD
The exposed pad at the bottom of the TDFN package for
enhancing thermal performance. Must be electrically
connected to the GND pin.
EN (Pin 7)
Enable input. Pull this pin to low or leave it floating to enable
the IC and force it to high, which will disable the IC.
Typical Applications
INPUT
VIN
OUT
ISL6292
BATTERY
CHARGER
C
1
PART
ISL9209B
ILIM
VB
R
VB
EN
DESCRIPTION
25k惟
200k惟 to 1M惟
1碌F/16V X5R ceramic capacitor
R
ILIM
R
VB
C
1
R
ILIM
GND
WRN
BATTERY
PACK
3
FN6400.0
March 21, 2007