ISL6255HRZ Intersil, ISL6255HRZ Datasheet - Page 9

• Manufacturer Part Number: ISL6255HRZ
• Description: IC CTRLR BATT CHRGR LI-ION 28QFN
• Manufacturer: Intersil

Specifications of ISL6255HRZ

• Function: Charge Management
• Battery Type: Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
• Voltage - Supply: 7 V ~ 25 V
• Operating Temperature: -10°C ~ 100°C
• Mounting Type: Surface Mount
• Package / Case: 28-VFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DCIN
The DCIN pin is the input of the internal 5V LDO. Connect it
to the AC adapter output. Connect a 0.1µF ceramic
capacitor from DCIN to CSON.
ACSET
ACSET is an AC adapter detection input. Connect to a
resistor divider from the AC adapter output.
ACPRN
Open-drain output signals AC adapter is present. ACPRN
pulls low when ACSET is higher than 1.26V; and pulled high
when ACSET is lower than 1.26V.
DCSET
DCSET is a lower voltage adapter detection input (like
aircraft power 15V).Allows the adapter to power the system
where battery charging has been disabled.
DCPRN
Open-drain output signals DC adapter is present. DCPRN
pulls low when DCSET is higher than 1.26V; and pulled high
when DCSET is lower than 1.26V.
EN
EN is the Charge Enable input. Connecting EN to high
enables the charge control function, connecting EN to low
disables charging functions. Use with a thermistor to detect
a hot battery and suspend charging.
ICM
ICM is the adapter current output. The output of this pin
produces a voltage proportional to the adapter current.
PGND
PGND is the power ground. Connect PGND to the source of
the low side MOSFET.
VDD
VDD is an internal LDO output to supply IC analog circuit.
Connect a 1μF ceramic capacitor to ground.
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ISL6255, ISL6255A
VDDP
VDDP is the supply voltage for the low-side MOSFET gate
driver. Connect a 4.7Ω resistor to VDD and a 1μF ceramic
capacitor to power ground.
ICOMP
ICOMP is a current loop error amplifier output.
VCOMP
VCOMP is a voltage loop amplifier output.
CELLS
This pin is used to select the battery voltage. CELLS = VDD
for a 4S battery pack, CELLS = GND for a 3S battery pack,
CELLS = Float for a 2S battery pack.
VADJ
VADJ adjusts battery regulation voltage. VADJ = VREF for
4.2V+5%/cell; VADJ = Floating for 4.2V/cell; VADJ = GND
for 4.2V-5%/cell. Connect to a resistor divider to program the
desired battery cell voltage between 4.2V-5% and 4.2V+5%.
CHLIM
CHLIM is the battery charge current limit set pin.CHLIM input
voltage range is 0.1V to 3.6V. When CHLIM = 3.3V, the set
point for CSOP-CSON is 165mV. The charger shuts down if
CHLIM is forced below 88mV.
ACLIM
ACLIM is the adapter current limit set pin. ACLIM = VREF for
100mV, ACLIM = Floating for 75mV, and ACLIM = GND for
50mV. Connect a resistor divider to program the adapter
current limit threshold between 50mV and 100mV.
VREF
VREF is a 2.39V reference output pin. It is internally
compensated. Do not connect a decoupling capacitor.
May 23, 2006
FN9203.2