isl9219 Intersil Corporation, isl9219 Datasheet

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... Data Sheet Li-ion Battery Charger The ISL9219 is a fully integrated high input voltage single-cell Li-ion battery charger. This charger is fully in compliance with the USB electrical specification. The charger performs the CC/CV charge function required by Li-ion batteries. The charger accepts an input voltage up to ...

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... Constant Charge Current Output Current Set Voltage Constant Charge Current Constant Charge Current Trickle Charge Current 2 ISL9219 Thermal Information Thermal Resistance (Junction to Ambient) θ 3x4 QFN Package (Notes Maximum Junction Temperature (Plastic Package +150°C Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C Pb-free Reflow Profile ...

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... Input Low (USBI, EN, AC_IN) Open Drain Leakage Current When HI (STAT1, STAT2, ACFLT, TRKL) Open Drain Sink Current When LOW (STAT1, STAT2, ACFLT, TRKL) VIN to PG Switch PMOSFET ON-Resistance Maximum Output Current 3 ISL9219 SYMBOL TEST CONDITIONS I For any input type MIN V RECH V ...

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... R PRECH ( ) --------------------------------- - PRECH 100 Where kΩ, valid for R PRECH PRECH 4 ISL9219 ISET (Pin 8) Charge-current programing and monitoring pin. Connect a resistor between this pin and the GND pin to set the charge current limit by Equation 2: 24000 I ---------------- - = OUT R ISET Where R ISET The ISET pin voltage also monitors the actual charge current during the entire charge cycle, including the trickle, constant- current, and constant-voltage phases ...

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... DIS EN 500mA 100mA AC AC/USB * SEE INPUT AND OUTPUT CAPACITOR SELECTION 5 ISL9219 EPAD Exposed pad. Connect to GND electrically. Thermally, connect as much as possible copper to this pad either on the component layer or other layers through thermal vias to enhance the thermal performance. VOUT VIN ...

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... Block Diagram VIN C 1 TEMPERATURE MONITORING R ISET ISET CURRENT REFERENCES = 20mA I MIN I SEN R 1 PRECH R PRECH USBI EN TS TIMER GND AC_IN TRKL 6 ISL9219 Q MAIN Q SEN 100000:1 CURRENT MIRROR SEN INPUT_OK + CHRG TRICKLE/FAST + - MIN_I R 2 VIN LOGIC 5µA OSC COUNTER ...

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... When powered with a current-limited adapter, the chargers minimizes the thermal dissipation commonly seen in traditional linear chargers linear charger, the ISL9219 charges a battery in the popular constant current (CC) and constant voltage (CV) profile. The constant charge current I SET with an external resistor ...

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... The STAT pins, will indicate the operating condition according to Table 1. The ISL9219 has a typical rising POR threshold of 3.6V and a falling POR threshold of 2.4V. Pre-Charge If the battery voltage is below the pre-charge threshold, the ...

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... OVP Protection The ISL9219 is capable for up to 28V at the input pin. However, reliability reason, the charger will stop charging should the input voltage exceed 6V. This feature prevents excessive heating generated by the high input voltages ...

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... The state diagram is shown in Figure 3. There area total of 5 states during a complete charging cycle: trickle charge, CC charge, CV charge, charge complete/recharge, fault and suspend. In the trickle mode, the ISL9219 charges the battery in a trickle current. If VOUT reaches VMIN before the trickle charge timeout interval, the operation will move to the CC mode ...

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... BATT IS RESET REMOVED COUNTER TRICKLE CHARGE STAT1 = L STAT2 = VIN ACFLT = L ANYTIME WHEN VIN < 4.4V ACFLT = H N VOUT>V MIN Y N TRICKLE TIMEOUT ? Y 11 ISL9219 N Y AC_IN = HI USBI = HI 500mA OUT OUT SET CV CHARGE STAT1= L STAT2 = VIN ACFLT = L Y TIMEOUT? ...

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... Package Outline Drawing L20.3x4 20 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 1, 3/10 3. PIN 1 INDEX AREA A TOP VIEW (2.65) (3.80) (1.65) (2.80) TYPICAL RECOMMENDED LAND PATTERN 12 ISL9219 A B 20X 4 4.00 0.15 (4X) VIEW "A-A" 20x 0.40±0.10 (16 x 0.50) (20 x 0.25) (20 x 0.60) NOTES: 1. Dimensions are in millimeters. Dimensions Dimensioning and tolerancing conform to AMSE Y14.5m-1994. ...