FP8101 FEELING | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 14
Technical content
Features
Standalone Linear Charger for Single Cell Li-ion Batteries No External MOSFET, Sense Resistor, or Blocking Diode Required Up to 0.5A Programmable Charge Current Preset Charge Voltage with ±1% Accuracy Automatic Recharge 2.9V Trickle Charge Voltage C/10 Charge Termination 55uA Standby Supply Current Charge Status Indicators for No Battery and Charge Failure Display Soft-Start to Limit Inrush Current Thermal Protection Reverse Battery Leakage Protection
Applications
Portable Information Appliances Charging Docks & Cradles Cellular Phones & PDAs Handheld Computers Typical Application Circuit VIN FP8101 Vcc PROG GND BAT BAT+ BAT- CHRG CHRG STDBY FP8101 Vcc PROG GND BAT BAT+ BAT- VIN SOT23-5L SOT23-6L
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Function Block Diagram Vcc PROG GND BAT- 145℃ TDie -2.9V VBAT 4.1V Charging Control - -+ + 0.1V 1.0V - + Body Switcher Vin VBAT - + VREF STDBY CHRG Charge Status Indicators Charge Status CHRG (Red) STDBY (Green) In Charging ON OFF Charge Termination OFF ON Vcc UVLO OFF OFF NoBat OFF ON
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. State Diagram Shutdown Mode Vcc < VUVLO Vcc < VBAT =Hi-Impedance =Hi-Impedance Pre-Charge Mode Charge Current=1/10．IBAT =Strong Pull-Low =Hi-Impedance Constant-Current Charge Mode Charge Current=IBAT =Strong Pull-Low =Hi-Impedance Constant-Voltage Charge Mode Charge Voltage > 4.1V =Strong Pull-Low =Hi-Impedance Standby Mode Charge Termination =Hi-Impedance =Strong Pull-Low VBAT < 4.1V VBAT 2.9V VBAT > 4.1V Charge Current <1/10．IBAT STDBY CHRG CHRG STDBY CHRG STDBY CHRG STDBY CHRG STDBY VBAT < 2.9V or Vcc < VBAT Vcc < VUVLO or Vcc < VBAT Vcc < VUVLO or Check VBAT Vcc ≥ VBAT Vcc ≥ VUVLO +0.1V and VBAT 2.9V or Vcc < VBAT Vcc < VUVLO Vcc < VBAT Vcc < VUVLO or
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Pin Descriptions SOT23-5L TOP View CHRG GND BAT Vcc PROG BAXXX SOT23-6L TOP View BAXXX CHRG STDBY PROG Vcc BAT GND Name No. I / O Description CHRG
1 O Charge State Indicator1
PROG 5 I CC Charge Current Setting & Monitor Name No. I / O Description CHRG
5 O Charge State Indicator2
PROG 6 I CC Charge Current Setting & Monitor
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Marking Information SOT23-5L / SOT23-6L BAXXX Year Lot Number Part Number Code Lot Number: Wafer lot number’s last two digits For Example: XX686 86 Year: Production year’s last digit Part Number Code: Part number identification code for this product. It should be always “BA”.
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product.
Ordering Information
Part Number Operating Temperature Package MOQ Description FP8101KR-G1 -40°C ~ +85°C SOT23-5L 3000EA Tape & Reel FP8101LR-G1 -40°C ~ +85°C SOT23-6L 3000EA Tape & Reel Absolute Maximum Ratings Parameter Symbol Conditions Min. Typ. Max. Unit Supply Voltage Vcc -0.3 6 V All Other Pins -0.3 6 V BAT Pin Current IBAT 0.6 A PROG Pin Current IPROG 1.2 mA Junction Temperature TJ +150 °C Storage Temperature TS -65 +150 ℃ Thermal Resistance θJA SOT23-5L / SOT23-6L 220 ℃ / W θJC 110 ℃ / W Operating Temperature -40 +85 ℃ Lead Temperature (Soldering, 10 Sec) +260 ℃ Suggested IR Re-flow Soldering Curve
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Recommended Operating Conditions Parameter Symbol Conditions Min. Typ. Max. Unit Supply Voltage Vcc 4.35 5.5 V Operating Temperature Ambient Temperature -40 85 °C Parameter Symbol Test Conditions Min. Typ. Max. Unit Standby Current ISB Charge Termination 55 100 µA Shutdown Supply Current IST Vcc< VBAT , Vcc< VUVLO RPROG not connect 35 60 µA CV Output (Float) Voltage VFLOAT 0°C<TA<85°C 4.158 4.2 4.242 V BAT Pin Current IBAT RPROG=2K 400 500 600 mA Standby-Mode, VBAT=4.2V 0 -2.5 -6 µA Shutdown-Mode, ±1 ±2 µA Sleep-Mode, Vcc=0V -1 -2 µA Trickle Charge Current ITRIKL VBAT< VTRIKL ,RPROG=2K 50 mA Trickle Charge Threshold Voltage VTRIKL RPROG=2K, VBAT Rising 2.9 V Trickle Charge Hysteresis Voltage VTRKHYS RPROG=2K 200 mV Vcc Under Voltage Lockout Threshold VUV Vcc Rising 3.5 3.7 3.9 V Vcc Under Voltage Lockout Threshold Hysteresis VUVHYS 500 mV Vcc-VBAT Lockout Threshold VASD Vcc Rising 100 mV Vcc Falling 10 mV C/10 Termination Current Threshold ITERM RPROG=2K 50 mA PROG Pin Voltage VPROG RPROG=2K, Current Mode 0.9 1.0 1.1 V CHRGB Pin Output Low Voltage VCHRG ICHRG=5mA 0.35 0.6 V STDBYB Pin Output Low Voltage VSTDBY ISTDBY=5mA 0.35 0.6 V Battery Recharge Threshold Voltage VRECHRG VFLOAT-VRECHRG 150 mV Temperature Limiting TLIM 145 °C Soft-Start Time TSS IBAT=0 to IBAT=1000V/RPROG 20 µs Recharge Comparator Filter Time TRECHRG VBAT High to Low 1.8 mS C/10Termination Comparator Filter Time TTERM IBAT Falling below ITERM 1.8 mS PROG Pin Pull-up Current IPROG 2 µA
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Typical Operating Characteristics (VCC=5V, TA= 25°C, unless otherwise noted) PROG Pin Voltage vs. Supply Voltage (Constant Current Mode) 0.96 0.965 0.97 0.975 0.98 0.985 0.99 4 4.5 5 5.5 6 Supply Voltage (V) VPROG (V) Battery Regulation(Float) Voltage vs. Supply Voltage 4.19 4.195 4.2 4.205 4.21 4.215 4.22 4.225 4.23 4 4.5 5 5.5 6 Supply Voltage (V) VFloat (V) Charge Current vs. Supply Voltage 100 200 300 400 500 600 700 4 4.5 5 5.5 6 Supply Voltage (V) IBAT (mA) Trickle Charge Current vs. Supply Voltage 4 4.5 5 5.5 6 Supply Voltage (V) IBAT (mA) Charge Current vs. Battery Voltage 100 200 300 400 500 600 VBAT (V) IBAT( mA) Battery Regulation(Float) Voltage vs. Charge Current 4.04 4.08 4.12 4.16 4.2 4.24 4.28 0 100 200 300 400 500 600 IBAT (mA) VFloat (V) VBAT=4V RPROG=10K RPROG=10K VBAT=4V RPROG=2K RPROG=10K VBAT=2.5V RPROG=2K RPROG=10K Thermal Regulation RPROG=2K RPROG=2K
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Trickle Charge Current vs. Temperature -50 -25 0 25 50 75 100 Temperature (°C) IBAT (mA) Battery Regulation(Float) Voltage vs. Temperature 4.16 4.18 4.2 4.22 4.24 -50 -25 0 25 50 75 100 Temperature (°C) VFloat (V) PROG Pin Voltage vs. Temperature 0.96 0.97 0.98 0.99 -50 -25 0 25 50 75 100 Temperature (°C) VPROG (V) Charge Current vs. Temperature 100 200 300 400 500 600 -50 -25 0 25 50 75 100 125 150 Temperature (°C) IBAT (mA) RPROG=2K RPROG=2K VBAT=2.5V RPROG=2K VBAT=4V RPROG=2K RPROG=10K
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Function Description Operation The FP8101 is a linear battery charger designed primarily for cha rging single cell lithium -ion batteries.The charger uses a constant-current/constant-voltage charging algorithm with programmable current. Charging current can be programmed by an external single resistor. The FP8101 includes an internal P -channel power MO SFET and thermal regulation circuitry. No blocking diode or external sense resistor are required. Thus, the basic charger circuit requires only two external components. Furthermore, The FP8101 is capable of operating from a USB power source. Normal Charge Cycle A charge cycle begins when the voltage at the Vcc pin rises above the UVLO threshold. If the BAT pin voltage is smaller than 2.9V, the charger enter trickle c harge mode. In this mode, the FP8101 supplies approximately 1/10 the programmed charging current to bring the battery voltage up to a safe level for full curr ent charging. When the BAT pin voltage rises above 2.9V, the charger enters constant-current mode, where the full programmed charge current is supplied to the battery. When the BAT pin appr oaches the float voltage (4. 1V), the FP8101 enters the constant-voltage mode and the charge current begins to decrease. When the charge current drops to 1/10 of the programmed value, the charge cycle ends. Programming Charge Current The charge current is programmed by a single resistor connected from the PROG pin to ground. The battery charg ing current is 1 000 times the current flowing out of the PROG pin. The required resistor value can be calculated from the charge current with following equation: RPROG= )MAX(CHGI 1000 The instantaneous charging current may differ from above equation in trickle or constant voltage modes. The instantaneous charging current provided to the battery can be determined by monitoring the PROG pin voltage at any time with the following equation: ICHG= 1000×R V PROG PROG
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Charge Termination A charge cycle is terminated when the charge current falls to 1/10 the programmed value after the final float voltage is reached. This condition is detected by using an inter nal, filtered comparator to monitor the PROG pin. When the PROG pin voltage falls below 100mV for longer then TTERM (1.8ms), charging is terminated. The charge current is shut off and the FP8101 enters standby mode, where the input supply current drops to 55uA. The FP8101 draws no current from the battery in standby mode. This feature reduces the charge and discharge cycles on the battery, further prolong the battery life. Thermal Protection An internal thermal feedback loop reduces the programmed charge current if the die temperature rises above a preset value of approximately 145°C. This feature protects the FP8101 from excessive temperature and allows the user to push the limits of the power handing capability of a given circuit board without risk of dama ging the FP8101. The charge current can be set according to typical ambient temperature with the assurance that the charge will automatically reduce the current in worst case condition. Under Voltage Lockout (UVLO) An internal under voltage lockout circui t monitors the input voltage and keeps the charger in shutdown mode until V CC rises above the under voltage lockout threshold. The UVLO circuit has a built-in hysteresis of 500mV. Furthermore, to protect against reverse current in the power MOSFET, the UVLO circuit force FP8101 to enter shutdown mode if VCC falls to within 10mV of the battery voltage. If the UVLO comparator is tripped, the charger will not come out of shutdown mode until V CC rises 100mV above the battery voltage. Automatic Recharge Once the charge cycle is terminated, the FP8101 continuously monitors the voltage on the BAT pin using a comparator with a 1.8ms filter time (TRECHARGE). A charge cycle restarts when the battery voltage falls below 4. 1V (which corresponds to approximately 80% to 90% batte ry capacity).This ensures that the battery is kept at or near a fully charged condition and eliminated the need for periodic charge cycle initiations. CHRG output enters a strong pull-down state during recharge cycles.
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Typical Application VIN FP8101 Vcc PROG GND BAT BAT+ BAT- CHRG LED1C1 10uF/X5R 10uF 0.4 SOT23-5L CHRG STDBY FP8101 Vcc PROG GND BAT BAT+ BAT- 10uF/X5R 10uF LED1LED2 VIN 0.4 SOT23-6L
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. Package Outline SOT23-5L Symbols Min. (mm) Max.(mm) A 1.050 1.350 A1 0.050 0.150 A2 1.000 1.200 b 0.250 0.500 c 0.080 0.200 D 2.700 3.000 E 2.600 3.000 E1 1.500 1.700 e 0.950 BSC e1 1.900 BSC L 0.300 0.550 L1 0.600 REF L2 0.250 BSC θ° 0° 10° θ1° 3° 7° θ2° 6° 10° Note: 1. Package dimensions are in compliance with JEDEC outline: MO-178 AB. 2. Dimension “D” does not include molding flash, protrusions or gate burrs. 3. Dimension “E1” does not include inter-lead flash or protrusions.
This datasheet contains new product information. Feeling Technology reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sales of the product. SOT23-6L Unit: mm Note: 1. Package dimensions are in compliance with JEDEC outline: MO-178 AB. 2. Dimension “D” does not include molding flash, protrusions or gate burrs. 3. Dimension “E1” does not include inter-lead flash or protrusions. Symbols Min. (mm) Max. (mm) A 1.050 1.450 A1 0.050 0.150 A2 0.900 1.300 b 0.300 0.500 c 0.080 0.220 D 2.900 BSC E 2.800 BSC E1 1.600 BSC e 0.950 BSC e1 1.900 BSC L 0.300 0.600 L1 0.600 REF L2 0.250 BSC θ° 0° 8° θ1° 3° 7° θ2° 6° 15°