Electronic Components Datasheet Search |
|
ISL6295CV-T Datasheet(PDF) 5 Page - Intersil Corporation |
|
ISL6295CV-T Datasheet(HTML) 5 Page - Intersil Corporation |
5 / 25 page 5 FN9074.2 February 8, 2011 Internal Voltage Regulator The ISL6295 incorporates an internal voltage regulator that supports 1-cell series lithium pack configurations. The internal regulator draws power directly from the VP input. No other external components are required to regulate circuit voltage. Precision Time Base The integrated precision time base is a highly accurate RC oscillator that provides precise timing for the sigma-delta A/D and for the on-chip elapsed time counters without the need for an external crystal. This time base is trimmed during manufacturing to a nominal frequency of 131.072kHz. Temperature Sensor An integrated temperature sensor is provided that can eliminate the need for an external thermistor. As an option, a connection is provided for an external thermistor for applications where the battery pack is physically located at a distance from the ISL6295. EEPROM 256 bytes of EEPROM memory is incorporated for storage of non-volatile parameters such as cell models for use with Intersil’s host driver firmware. An an initialization block with values that are loaded into ISL6295 registers following a power on condition. Included in this block is 16 bytes for battery ID information. RAM 32 bytes of general purpose RAM memory are provided for storage of temporary parameters. A/D Converter The ISL6295 incorporates an integrating sigma-delta A/D converter together with an analog MUX that has inputs for charge and discharge currents, pack voltage, GPAD voltage, the on-chip temperature sensor, and an off-chip thermistor. The converter can be programmed to perform a conversion with magnitude resolution of 8- to 15-bits while using either a single 170mV or 340mV reference. 32-Bit Accumulator/Timers The ISL6295 incorporates four 32-bit accumulators and four 32-bit elapsed time counters. The Discharge Current Accumulator (DCA) and the Charge Current Accumulator (CCA) are intended to record discharge and charge capacity values. The Discharge Time Counter (DTC) and the Charge Time Counter (CTC) are intended to maintain the total discharge time and charge time. Accumulated charge and discharge values can be used to determine state of charge of the battery as well as cycle count information. With information provided by the elapsed time counters, average charge and discharge currents over an extended period of time can be calculated. SMBus/I2C™ Communications Interface This communications port for the ISL6295 is a 2-wire industry-standard SMBus/I2C™ interface. All commands, status, and data is read or written from the host system via this interface. A/D and Accumulator/Timer Operation A/D CONVERSION CYCLE When the A/D converter is enabled and active, it repeatedly performs a cycle of 1 to 8 conversions as programmed by FIGURE 2. BLOCK DIAGRAM 256 EEPROM 32-BIT ACCUMULATORS/ TIMERS VOLTAGE REFERENCE AND TEMP SENSOR VOLTAGE REGULATOR COMM INTERFACE REGISTERS 16-BIT SIGMA-DELTA INTEGRATING A/D CONVERTER ANALOG INPUT MUX RUN OSCILLATOR VP ROSC GND DIGITAL SECTION ANALOG SECTION CONTROL SCL SR SDA SLEEP OSCILLATOR GPAD/IO1 NTC/IO0 AND STATUS ISL6295 |
Similar Part No. - ISL6295CV-T |
|
Similar Description - ISL6295CV-T |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |