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CM9101-00QE Datasheet(PDF) 4 Page - California Micro Devices Corp |
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CM9101-00QE Datasheet(HTML) 4 Page - California Micro Devices Corp |
4 / 12 page PRELIMINARY CM9101 Specifications (cont’d) ELECTRICAL OPERATING CHARACTERISTICS (SEE NOTE 1) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS ICC CC Mode Charging Current, VBSEN > 3.5V 0.92 x ICC I CC 2500 R SET k ( Ω) - = ----------------------- 1.08 x ICC mA VCV CV Mode Voltage Threshold 4.190 4.200 4.210 V ITERM Charge Termination Current VBSEN > 4.190V 0.8 x ITERM I TERM 100 R SET k ( Ω) - = ----------------------- 1.2 x ITERM mA VRCH Recharge Mode Threshold 4.090 4.100 4.110 V CT Constant-temperature Mode, Limit (Note 2) 95 105 125 C OTPLIMIT Over-temperature Protec tion, Limit (Note 3) 130 140 150 C OCPLIMIT Over-current Charging (OCP), Limit (Note 4) 0.9 1.0 1.1 A RDSON RDSON of Charger MOSFET ICC = 500mA 100 120 150 m Ω VREF VREF Regulated Voltage VREF IREF < 1mA 4.190 4.200 4.210 V VSTB VSTB Regulated Voltage VSTB 4.100 4.200 4.300 V Control Function IBSEN BSEN Pin Leakage Current VIN = 0 0.2 1.0 µA VSTAT STAT (Open Drain) Output Low Voltage ISINK = 5mA ISINK = 20mA 0.1 0.5 V V VIH EN ENA Input High Level 1.5 V VIL EN ENA Input Low Level 0.4 V Thermistor Function (Note 4, 5) VBH Battery HOT Voltage Threshold (THERM Pin) VIN = 5.0V (Note 6) 0.9 x VBH VBH = 0.5 x VIN 1.1 x VBH V VBC Battery COLD Voltage Threshold (THERM Pin) VIN = 5.0V (Note 6) 0.9 x VBC VBC = 7/8 x VIN 1.1 x VBC V Hysterezis of VBH, VBC 80 100 120 mV Note 1: VIN = 5.0V. All outputs are on. TA = 25°C unless otherwise specified. Note 2: When chip temperature reaches 105°C, the IC’s internal thermal limit will maintain this temperature by decreasing the pro grammed charge current. Note 3: When chip temperature reaches 140°C, the IC goes into a latched shutdown mode. It stops charging, stops supplying VOUT). To resume the charging function, a toggle of VIN is required. Note 4: This feature can be disabled by connecting the THERM pin to GND. Note 5: This function requires a Thermistor connected between the THERM pin and GND. Another resistor connected between THERM pin and VIN is required, its value should equal the Thermistor Hot Value (at 50°C). In order to catch both the 0°C and 50°C thresholds (typical range for Li-ion battery) use Thermistors following 7/1 ratio (Thermistor COLD/Thermistor HOT=7). Note 6: If the battery HOT/COLD detection identifies a condition outside the thresholds, the IC stops charging the battery and waits for the temperature to return to the normal value. © 2006 California Micro Devices Corp. All rights reserved. 4 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 l Tel: 408.263.3214 l Fax: 408.263.7846 l www.cmd.com 06/30/06 |
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