ISL9201IRZ

Series: -
Function: Charge Management
Battery Chemistry: Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
Operating Temperature: -40°C ~ 85°C
Mounting Type: Surface Mount
Package / Case: 10-VFDFN Exposed Pad
Packaging: Tube
Voltage - Supply: 4.25 V ~ 6.5 V
Supplier Device Package: 10-DFN (3x3)
Manufacturer: Intersil


Description

The ISL9201IRZ belongs to the ISL9201, which is an integrated single-cell Li-ion or Li-polymer charger capable of operating at an input voltage as low as 2.5V. The low operating voltage allows the charger to work with a variety of AC adapters. The ISL9201 operates as a linear charger when the AC adapter is a voltage source. The battery is charged in a standard Li-ion charge profile, i.e. a constant current phase followed be a constant voltage phase (CC/CV). The charge current during the constant current phase is determined by the external resistor connected to the IREF pin. When the adapter output is a current-limited voltage source and the current limit is smaller than the programmed constant current of the IC, the ISL9201 operates as a pulse charger where the charge current is determined by the current limit of the AC adapter during the constant current phase. The ISL9201 operates in a linear mode during the constant voltage phase in both adapter cases. The ISL9201 incorporates ThermaguardTM, which protects the IC against over-temperature. If the die temperature rises above a typical value of +110 °C, the thermal foldback function reduces the charge current to prevent further temperature rise. The ISL9201 also includes a timer to set the time reference for the delay time of the end-of-charge (EOC) and recharge indications. The timer is programmable with an external capacitor. A logic input and an open-drain logic output are available for controlling the charger and indicating the charger status. The EN pin enables the charger. The STATUS pin is an open-drain output which turns on when the charger is delivering current. The charger uses a 10 Ld 3x3 DFN package to maximize thermal conductivity.

The features of ISL9201IRZ can be summarized as (1)complete charger for single-cell Li-ion/polymer batteries; (2)integrated pass element and current sensor; (3)no external blocking diode required; (4)low component count and cost; (5)25mV voltage accuracy over-temperature and input ; (6)voltage range; (7)20mV voltage accuracy at room temperature ; (8)programmable charge current ; (9)charge current thermal foldback for thermal protection ; (10)(thermaguardTM); (11)trickle charge for fully discharged batteries ; (12)power presence and charge/EOC indications; (13)less than 4A leakage current off the battery when no ; (14)input power attached or charger disabled; (15)ambient temperature range: -40 to +85; (16)DFN package ; (17)Pb-Free plus anneal available (RoHS compliant).

The maximum absolute ratings of ISL9201IRZ are (1)voltage ratings for all pins :-0.3V to 7V; (2)charge current :1.0A; (3)ESD Rating: Human Body Model (Per EIA JESD22 Method A114-B): 2kV/machine model (Per EIA JED-4701 method C-111): 200V; (4)ambient temperature range: -40°C to +85°C; (5)operating supply voltage (VIN Pin): 4.25V to 6.5V; (6)programmed charge current: 50mA to 900mA; (7)maximum junction temperature (plastic package): +150°C; (8)maximum storage temperature range: -65°C to +150°C; (9)maximum lead temperature (soldering 10s): +300°C.(CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. +150°C max junction temperature is for information purposes only. In reality, the current foldback feature will prevent the junction from rising above the typical temperature of +110°C.).

Parameters:

Technical/Catalog Information	ISL9201IRZ
Vendor	Intersil
Category	Integrated Circuits (ICs)
Battery Type	Li-Ion, Li-Pol
Function	Charge Management
Package / Case	10-DFN
Packaging	Tube
Operating Temperature	-40°C ~ 85°C
Voltage - Supply	4.25 V ~ 6.5 V
Drawing Number	*
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	ISL9201IRZ ISL9201IRZ