AUR9807DSGD

NOT RECOMMENDED FOR NEW DESIGN Data Sheet Single-cell Li-Ion Charger IC with System Power Management AUR9807 General Description Features The AUR9807 is a single-cell Li-ion charger IC with system power management feature. It charges the battery and power the system simultaneously. The maximum charging current (up to 1.5A) is set by external resistor for fast charging. The output voltage for the system is regulated to a nominal value (three different versions available: 4.4V, 5V or 6V); the actual value of the output voltage depends on the input voltage from the adapter, the charging current and the system loading. With the decrease of the input voltage or the increase of the system loading current, the output voltage drops. When the output voltage drops to a predetermined value (VAPM-REG), the Active Power Management function is activated and tries to maintain the output voltage at VAPM-REG; the AUR9807 will suffice the system loading with first priority and reduce the charging current temporarily, i.e. under heavy load condition, the AUR9807 charges the battery with the remaining available current to keep the output voltage at VAPM. In this manner, the charge and discharge cycle of the battery can be reduced. It is possible that the AUR9807 fails to maintain the output voltage at VAPM-REG; for example, when the system loading current exceeds the capability of the current-limiting AC adapter. In this scenario, the output voltage drops to the battery voltage, and the system is allowed to draw current from the battery. The AUR9807 is available in QFN-4.5×3.5-20 package. • • • • • • • • • • • QFN Package Active Power Management (APM) for Simultaneously Powering the System and Charging the Battery Total Current Supported Up to 2 Amperes (System Loading Having Higher Priority on the Budget) Automatic Power Source Selection (AC Adapter or Battery) 40mΩ Power Path for the Battery to Supply the System Power Efficiently Junction Temperature Detection and Thermal Regulation During Charging Process External LED Indicating Charger and Power Good Status as Well as Fault Condition Thermal, Short-Circuit, and Reverse Current Protection Short-Circuit Protection in the Low Power Consumption Sleep Mode SYSOFF Function to Cut Off the Path Between the System and the Battery Built-in Over Voltage Protection up to 18V Applications • • • • Battery-Powered Devices or Equipment Mobile Phones, Digital Cameras and MP3 Players Radios, Other Hand-Held Games and Instruments Solar Power System QFN-4.5×3.5-20 Figure 1. Package Type of AUR9807 AUR9807 Document number: DS37580 Rev. 1 - 3 1 of 23 www.diodes.com October 2014 © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN Data Sheet Single-cell Li-Ion Charger IC with System Power Management AUR9807 Pin Configuration GND Pin 1 Mark VREF D Package (QFN-4.5×3.5-20) 1 20 STAT1 2 19 GND STAT2 3 18 /PG IN 4 17 OUT BAT 5 16 OUT BAT 6 15 OUT ISET2 7 14 TMR MODE 8 13 APM CE 9 12 TS 10 11 ISET1 SYSOFF Exposed Pad Figure 2. Pin Configuration of AUR9807 (Top View) AUR9807 Document number: DS37580 Rev. 1 - 3 2 of 23 www.diodes.com October 2014 © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN Data Sheet Single-cell Li-Ion Charger IC with System Power Management AUR9807 Pin Description Pin Number I/O Pin Name Function 1 O VREF Internal reference; VREF output capacitor not required, but one with a value of 0.1μF is recommended. 2 O STAT1 Charge status flag 1 (open-drain) 3 O STAT2 Charge status flag 2 (open-drain) 4 I IN 5,6 I/O BAT 7 I ISET2 8 I MODE 9 I CE 10 I/O ISET1 11 I SYSOFF 12 I/O TS 13 I APM 14 I/O TMR 15 , 16 , 17 O OUT System output 18 O /PG Power-good status flag (open-drain) 19 , 20 I GND AUR9807 Document number: DS37580 Rev. 1 - 3 Chip input voltage Battery connection; charging or discharging all through this pin USB mode total current selection (High=450mA, Low= 90mA) and AC mode charge current selection (High=Full current, Low=half current) Set AUR9807 in AC(High) or USB(Low) mode Chip enable (active high) Set the maximum charging current Cut off the power path between the battery and the output pin Battery Temperature sensing Active Power Management set point ※ no need for capacitors Timer program by external resistor connected to this pin. Tying TMR and VREF together to disable the safety timer Chip Ground 3 of 23 www.diodes.com October 2014 © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN Data Sheet Single-cell Li-Ion Charger IC with System Power Management AUR9807 Functional Block Diagram IN 4 1 3.3V Short-Circuit Recovery VREF 15, 16, 17 Q1 OUT VOUT UVLO Fault Recovery Power Source Selection VISENSE 100mA 500mA VSET BAT Short-Circuit Recovery ISENSE Q2 10 VI(ISET1) 5, 6 VBAT VOUT VOUT(REG) SYSOFF GND TMR APM ISET1 BAT 11 VBAT VBAT(REG) 19, 20 VI(ISET1) VSET 14 VSET VAPM Oscillator 13 TJ TJ(REG) VBAT VOUT IAMP 1V VHTF ITS TS 12 AC Charge Enable Thermal Shutdown 1V BAT Charge Enable VLTF 500mA/100mA Fast Precharge MODE CE Power Source Selection 8 9 VBAT VRCH Charge Control Timer and Display Logic 1C - 500mA 7 ISET2 C/S - 100mA 18 /PG Recharge 2 VBAT VLOWV VI(ISET1) VTERM Precharge Termation VBAT VIN 3 STAT1 STAT2 Sleep Figure 3. Functional Block Diagram of AUR9807 AUR9807 Document number: DS37580 Rev. 1 - 3 4 of 23 www.diodes.com October 2014 © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN Data Sheet Single-cell Li-Ion Charger IC with System Power Management AUR9807 Ordering Information AUR9807 Circuit Type D: QFN-4.5x3.5-20 Output Voltage VF: 4.4V, CV Mode DF: 4.4V, Done VI: 5V, CV Mode DI: 5V, Done VS: 6V, CV Mode DS: 6V, Done G: Green CV mode: After charge done, charger will stay in constant voltage mode until time out. Done: After charge done, charger will shut down until the battery voltage drops below the battery recharge threshold. Package QFN-4.5x3.5-20 Temperature Range -40 to 85C Output Voltage Part Number Marking ID Packing Type 4.4V, CV Mode AUR9807VFGD A9807VFG Tape & Reel 4.4V, Done AUR9807DFGD A9807DFG Tape & Reel 5V, CV Mode AUR9807VIGD A9807VIG Tape & Reel 5V, Done AUR9807DIGD A9807DIG Tape & Reel 6V, CV Mode AUR9807VSGD A9807VSG Tape & Reel 6V, Done AUR9807DSGD A9807DSG Tape & Reel BCD Semiconductor's Pb-free products, as designated with "G" in the part number, are RoHS compliant and green. AUR9807 Document number: DS37580 Rev. 1 - 3 5 of 23 www.diodes.com October 2014 © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN Data Sheet Single-cell Li-Ion Charger IC with System Power Management AUR9807 Absolute Maximum Ratings (Note 1) Parameter Supply Input Voltage Input Voltage Symbol Value Unit VIN VBAT, VCE, VAPM, V/PG, VMODE, VOUT, VISET1, VISET2, VSTAT1, VSTAT2, VTS VREF -0.3 to 18 V -0.3 to 7 V -0.3 to VOUT+0.3 V VTMR -0.3 to VOUT+0.3 V IIN 3.5 A IOUT 4 A IBAT -4 to 1.5 A IREF 30 mA I/PG, ISTAT1, ISTAT2 15 mA JA 52 °C/W TSTG -65 to 150 °C TJ -40 to 150 °C 300 °C Input Current Output Current Output Source Current (In Regulation at 3.3V VREF) Output Sink Current Thermal Resistance (Junction to Ambient) Storage Temperature Junction Temperature Lead Temperature (Soldering, 10 Seconds) ESD (Human Body Model) VHBM 2000 V ESD (Machine Model) VMM 200 V Note 1: Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Conditions” is not implied. Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability. Recommended Operating Conditions Parameter Symbol AUR9807DSGD, AUR9807VSGD Supply Voltage AUR9807DFGD,AUR9807VFGD, AUR9807DIGD, AUR9807VIGD VIN Input Current IIN Operating Junction Temperature Range TOP AUR9807 Document number: DS37580 Rev. 1 - 3 6 of 23 www.diodes.com Min Max Unit 4.35 6.3 V 4.35 5.5 V 2 A 125 °C -40 October 2014 © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN Data Sheet Single-cell Li-Ion Charger IC with System Power Management AUR9807 Electrical Characteristics TA=25oC, VIN is within the recommended range, unless otherwise specified. Parameter Symbol Test Condition Active Supply Current IIN(SPLY) Sleep Mode Current into BAT Pin IBAT(SLP) Input Pin Current IIN(STDBY) Standby BAT Pin Standby Current IBAT(STDBY) Charge BAT IBAT(TERM) Done Current, Q1,Q2 DROP-OUT VOLTAGE IN to OUT Dropout VDO(IN-OUT) Voltage BAT to OUT Dropout VDO(BAT-OUT) Voltage VOLTAGE REGULATION Regulation VOUT VOUT(REG) 9807VF 9807DF Regulation VOUT VOUT(REG) 9807VI 9807DI Regulation VOUT VOUT(REG) 9807VS 9807DS APM REGULATION Min Typ Max Unit VIN>4.35V VIN6V+VDO(IN-OUT) 6 6.3 V 3.8 V μA APM Set Point VAPM-SET VAPM-SET2V Escape Battery Supplement Mode VBSUP2 VBAT>2V Precharge to Fast-charge Transition Voltage VLOWV Voltage on BAT Precharge Current Range IPRECHG V VOUT> VBAT– 20mV V 3.1 V 150 mA CHARGING-PRECHARGE AUR9807 Document number: DS37580 Rev. 1 - 3 2.9 10 7 of 23 www.diodes.com 3 October 2014 © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN Data Sheet Single-cell Li-Ion Charger IC with System Power Management AUR9807 Electrical Characteristics (Continued) TA=25oC, VIN is within the recommended range, unless otherwise specified. Parameter Symbol Precharge Set Voltage VPRECHG Test Condition tFALL=100ns, De-glitch Time Between 10mV overdrive, Fast Charge and tDGLF VBAT decreasing below Precharge Transition threshold CHARGING-CURRENT REGULATION Fast Charge Current ICHG VBAT>VLOWV, Mode=High Range BAT to OUT Pull-up RPBAT VBAT5 mA ] THERMAL SHUTDOWN REGULATION Boot-up Time Min 120 150 TJ (Q1 and Q3 only) 150 TJ (Q1 and Q3 only) 25 Unit mV ms 180 ms 50 μs Thermal Hysteresis Temperature Regulation Limit UVLO TJ(REG) TJ (Q2) 110 Under-voltage Lockout VUVLO 2.45 2.5 2.65 V Input Power Detection Threshold VIN(DT) Decreasing VIN Input power detected when VIN>VBAT + VIN(DT) VBAT=3.6V VIN: 3.5V → 4V 55 80 130 mV Hysteresis VREF OUTPUT Output Regulation Voltage Regulation Accuracy VREF Output Current IREF On Resistance RDS(ON) Output Capacitance AUR9807 Document number: DS37580 Rev. 1 - 3 Active only if ADP or USB is present -5 OUT to VREF COUT 10 of 23 www.diodes.com °C 130 27 mV 3.3 V +5 % 20 mA 50 Ω 1 μF October 2014 © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN Data Sheet Single-cell Li-Ion Charger IC with System Power Management AUR9807 Electrical Characteristics (Continued) TA=25oC, VIN is within the recommended range, unless otherwise specified. SHORT CIRCUIT PROTECTION Short-circuit Recovery Between BAT to OUT IN to OUT Short-circuit Protection Output Short-circuit Detection Threshold, Power-on Output Short-circuit Detection Threshold, Supplement mode (VBAT – VOUT)>VOUT(SC2) Indicates Short-circuit Deglitch Time, Supplement Mode Short Circuit Maximum Short-current for VBAT>VOUT IOSH1 Pull-up source from BAT to OUT for short-circuit recovery VOUTVBAT + VIN(DT) 0.9 1 1.1 V VOUT(SC2) VBAT>2.5V 160 200 240 mV tDGL(SC2) ISHORT(2) μs 512 VBAT>2.5V 9 A (2) For short current>ISHORT , short-protection may not work due to avalanche breakdown phenomenon. Typical Performance Characteristics Figure 4. Output Voltage vs. Output Current AUR9807 Document number: DS37580 Rev. 1 - 3 Figure 5. Output Voltage vs. Charge Current 11 of 23 www.diodes.com October 2014 © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN Data Sheet Single-cell Li-Ion Charger IC with System Power Management AUR9807 Typical Performance Characteristics (Continued) VOUT 2V/div VIN 2V/div ICHG 0.5A/div Time 20ms/div Figure 6. Charge Current vs. Input Voltage Figure 7. Power On VIN 2V/div VOUT 2V/div VOUT 2V/div VIN 2V/div ICHG 1A/div ICHG 0.5A/div VMODE 2V/div VSYSOFF 2V/div Time 1ms/div Time 200s/div Figure 8. SYSOFF Floating AUR9807 Document number: DS37580 Rev. 1 - 3 Figure 9. MODE Pin Pull Low 12 of 23 www.diodes.com October 2014 © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN Data Sheet Single-cell Li-Ion Charger IC with System Power Management AUR9807 Typical Performance Characteristics (Continued) VIN 2V/div VOUT 2V/div ICHG 0.5A/div VIN 2V/div VOUT 2V/div ICHG 0.5A/div VISET2 2V/div VISET2 2V/div Time 40s/div Time 400s/div Figure 10. ISET2 Pin Pull High Figure 11. ISET2 Pin Pull Low VIN 2V/div VOUT 2V/div ICHG 0.5A/div VMODE 2V/div Time 40s/div Figure 12. MODE Pin Pull High AUR9807 Document number: DS37580 Rev. 1 - 3 13 of 23 www.diodes.com October 2014 © Diodes Incorporated NOT RECOMMENDED FOR NEW DESIGN Data Sheet Single-cell Li-Ion Charger IC with System Power Management AUR9807 Power Flow AC Adapter (or USB) IN OUT Q1 VDC VDC - System Q2 40 mΩ + OUTREF BAT AUR9807 The AUR9807 selects the power source automatically. In the absence of the input source (AC adapter or USB), the battery is chosen to power the system. Under this circumstance, the AUR9807 consumes less than 5μ Ampere; the power path resistance from the battery to the system is only 40mΩ (3); all these guarantee a high efficiency and elongate the battery discharge time. With this stringent sleep current budget (