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ISL6293-2CR-T Datasheet(PDF) 5 Page - Intersil Corporation |
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ISL6293-2CR-T Datasheet(HTML) 5 Page - Intersil Corporation |
5 / 8 page 5 FN9180.0 Functional Pin Description CRDL (Pin 1) Cradle input. This pin is usually connected to a cradle power input. The maximum input voltage is 28V. The charge current from this pin is programmable with the ICDL pin up to 1A. When this pin is connected to a power source, no charge current is drawn from the USB pin. A 1µF or larger value ceramic capacitor is recommended for decoupling. USB (Pin 2) USB input. This pin is usually connected to a USB port power connector. Other sources that are lower than 5.5V are also acceptable. The charge current from the USB pin is selectable between 100mA and 500mA maximum with the USBP pin when the RIUSB = 80kΩ. A 1µF or larger value ceramic capacitor is recommended for decoupling. It is also recommended to have a 1 Ω resistor in series with the decoupling capacitor to prevent an over-shoot voltage when a USB cable is plugged in. PPR (Pin 3) Power presence indication. This is an open-drain output pin that outputs a logic LOW when either the USB input voltage or the CRDL input voltage is above its POR level, regardless if the charger is enabled or disabled. This pin provides a wake-up signal to a microprocessor when either the cradle or the USB power is connected. CHG (Pin 4) Charge indication pin. When the charge current from the cradle input during the constant current mode falls to below 8% of the programmed reference current by the ICDL pin or the charge current from the USB input is below 10% of the programmed charge current, the open-drain MOSFET is turned off. The pin will be pulled to logic HIGH by the pull-up resistor to indicate the End Of Charge. USB Input Trickle Charge Current ITRICKLE USBP = LOW, RIUSB = 80kΩ, VBAT = 2.4V Given as a % of the USB LOW ICHARGE 45.0 50.0 55.0 % END-OF-CHARGE CURRENT THRESHOLD Powered From USB Pin IEOC USBP = HIGH, USB = 5V, RIUSB = 80kΩ Given as a % of the USB HIGH ICHARGE 8.0 10.5 13.0 % Powered From USB Pin IEOC USBP = LOW, USB = 5V, RIUSB = 80kΩ Given as a % of the USB LOW ICHARGE 17.0 21.0 25.0 % Powered From CRDL Pin IEOC RICDL = 1.82kΩ, VCRDL = 5V Given as a % of the CRDL ICHARGE 5.5 8.5 11.0 % PRECONDITIONING CHARGE THRESHOLD Preconditioning Charge Threshold Voltage VMIN 2.5 2.6 2.7 V INTERNAL TEMPERATURE MONITORING Current Foldback Threshold (Note 6) TFOLD 85 100 115 °C LOGIC INPUT AND OUTPUT USBP Pin Logic Input High 2.0 - - V USBP Pin Logic Input Low -- 0.4 V USBP Pin Internal Pull Down Resistance - 1000 - k Ω EN Pin Logic Input High 1.2 - - V EN Pin Logic Input Low -- 0.4 V EN Pin Internal Pull Down Resistance - 1000 - k Ω CHG/PPR Sink Current Pin Voltage = 0.8V 15 - - mA NOTES: 3. The 4.0V VBAT is selected so that the CHG output can be used as the indication for the offset comparator output indication. If the VBAT is lower than the POR threshold, no output pin can be used for indication. 4. The maximum and minimum limits are guaranteed over -40°C to 70°C ambient temperature range. 5. The charge current may be reduced by the thermal foldback function, depending on the heatsinking condition of the test setup. 6. The threshold value at which the charger output is reduced to near zero. Guaranteed by design, not tested. Electrical Specifications Typical Values Are Tested at USB = CRDL = 5V and ambient temperature is at 25°C, Unless Otherwise Noted. All Maximum and Minimum Values Are Guaranteed Under the Recommended Operating Conditions. (Continued) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNITS ISL6293 |
Similar Part No. - ISL6293-2CR-T |
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Similar Description - ISL6293-2CR-T |
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