ISL9301IRZ-T Intersil, ISL9301IRZ-T Datasheet - Page 4

• Manufacturer Part Number: ISL9301IRZ-T
• Description: IC CHRGR LI-ION HV SGL 10-TDFN
• Manufacturer: Intersil
• Type: Battery Chargerr

Specifications of ISL9301IRZ-T

• Function: Charge Management
• Battery Type: Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
• Voltage - Supply: 4.3 V ~ 10 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-VFDFN Exposed Pad
• Output Voltage: 4.5V
• Operating Supply Voltage (min): 4.3V
• Operating Temp Range: -40C to 85C
• Mounting: Surface Mount
• Pin Count: 10
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Block Diagram
Pin Descriptions
VIN - Power input. The absolute maximum input voltage is
28V. A 10µF or larger value capacitor is recommended to be
placed very close to the input pin for decoupling purposes.
Additional capacitance may be required to provide a stable
input voltage.
VBAT - Charger output pin. Connect this pin to the battery. A
1µF or larger X5R ceramic capacitor is recommended for
decoupling and stability purposes. When the BATON pin is
pulled to logic LOW or left floating, the VBAT pin is
disconnected from the IC.
TIME - Timing resistor pin. The TIME pin determines the
oscillation period by connecting a timing resistor between
this pin and GND. The oscillator also provides a time
reference for the charger calculated in Equation 1.
Where R
by Equation 2:
Where t
timeout interval is approximately 5.6 hours.
t
t
TIMEOUT
OSC
RTIME
To USB or AC Adatper
=
RIMIN
OSC
75
TIME
=
×
R
2
---------------------------- -
is in seconds. For an 1MΩ R
28
TIME
is in MΩ. The nominal timeout interval is given
3600
×
t
TIME
IMIN
OSC
VIN
4
VOUT_REF
(
ILIM REF
μs
Die Temp
VOUT
142 oC
VCC
)
(
Hour
TIME
)
IBAT
IREF
1V
0.2V
, the nominal
COMP
COMP
(EQ. 1)
(EQ. 2)
S
R
Q
1000
ISL9301
1
VBAT
IBAT
CLK
IOUT
VIN
RILIM
SHUTDOWN
IBAT_REF
VBAT_REF
I
PPR - Open-drain power presence indication. The
open-drain MOSFET turns on when the input voltage is
above the POR threshold but below the OVP threshold and
off otherwise. This pin is capable to sink 10mA (minimum)
current to drive a LED. The maximum voltage rating for this
pin is 7V.
CHG - Open-drain charge indication pin. This pin outputs a
logic LOW when a charge cycle starts and turns to HIGH
when the end-of-charge (EOC) condition is qualified. This
pin is capable to sink 10mA min. current to drive an LED.
When the charger is disabled, the CHG outputs high
impedance.
IMIN - End-of-charge (EOC) current program pin. Connect a
resistor between this pin and the GND pin to set the EOC
current. The EOC current IMIN can be programmed by
Equation 3:
Where R
(or 10mA, whichever is higher) to 50% of IREF when
programmed to less than 5% or 10mA.
MIN
VBAT
Die Temp
POR
Timer
EOC
Re-charge
OVP
DispIay
Logic
115 oC
=
SHUTDOWN
----------------
R
3151
IMIN
IMIN
IBAT
PPM CTRL
is in kΩ. The programmable range covers 5%
IOUT
1000
1
GND
(
mA
Push 2S to turn on
BATON
)
VOUT
CHG
PPR
VBAT
IREF
To system load
BATT ON
BATT OFF
Cell1
VBAT
To uP
July 2, 2008
FN6435.2
(EQ. 3)