FAN5400 Fairchild Semiconductor, FAN5400 Datasheet
FAN5400
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FAN5400 Summary of contents
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... FAN5400 / FAN5401 / FAN5402 / FAN5403 / FAN5404 / FAN5405 USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator Features Fully Integrated, High-Efficiency Charger for Single-Cell Li-Ion and Li-Polymer Battery Packs Faster Charging than Linear 0.5% at 25°C Charge Voltage Accuracy: 1% from 0 to 125°C ...
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... X5R, 0603 BUS Note: 2. 6.3V rating is sufficient for C since PMID is protected from over-voltage surges on VBUS by Q3 (Figure 3). MID © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 Package PN Bits: 20- Bump, Wafer- Level Chip-Scale Package (WLCSP), 0.4mm Pitch, Estimated Size: 1.96 x 1.87mm ...
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... Block Diagram VBUS C IN1 PMID Q1A Greater than VBAT ON Less than VBAT OFF © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 Figure 2. IC and System Block Diagram PMID Q3 CHARGE PUMP Q1 Q1A CSIN Q1B SW Q1B Q2 OFF ON PGND VBAT SYSTEM Figure 3. Power Stage ...
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... Regulator Output. Connect to a 1F capacitor to PGND. This pin can supply up to 2mA of E3 VREG ALL DC load current. For FAN5400-FAN5402, the output voltage is PMID, which is limited to 6.5V. For FAN5403-FAN5405, the output voltage is regulated to 1.8V. Battery Voltage. Connect to the positive (+) terminal of the battery pack. Bypass with a E4 ...
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... J(max) Symbol Parameter Junction-to-Ambient Thermal Resistance JA Junction-to-PCB Thermal Resistance JB © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 Parameter Continuous Pulsed, 100ms Maximum Non-Repetitive Human Body Model per JESD22-A114 Charged Device Model per JESD22-C101 Parameter T < 60°C ...
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... IN Charge Termination Detection Termination Current Range I (TERM) Termination Current Accuracy Termination Current Deglitch Time 1.8V Linear Regulator V 1.8V Regulator Output REG © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 Conditions V > PWM Switching BUS BUS(min) V > PWM Enabled, BUS BUS(min) Not Switching (Battery OVP Condition) ...
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... Oscillator Frequency SW D Maximum Duty Cycle MAX D Minimum Duty Cycle MIN Synchronous to Non-Synchronous I SYNC Current Cut-Off Threshold © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 Conditions To Initiate and Pass VBUS Validation During Charging I Set to 100mA IN I Set to 500mA IN V > > ...
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... Q2 always turns on for 60ns, then turns off if current is below I 6. Guaranteed by design; not tested in production. 7. This tolerance (%) applies to all timers on the IC, including soft-start and deglitching timers. © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 Conditions 2.5V < V < 4.5V, I from 0 to BAT ...
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... FCL SDA Rise Time t Rise Time of SCL after a RDA Repeated START Condition t RCL1 and after ACK Bit © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 Conditions Standard Mode Fast Mode High-Speed Mode, C < 100pF B High-Speed Mode, C < 400pF B Standard Mode ...
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... MCS Current Source Pull- Resistor Pull-up P Note A: First rising edge of SCLH after Repeated Start and after each ACK bit. Figure 6. I © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 Conditions Standard Mode Fast Mode High-Speed Mode, C < 100pF B High-Speed Mode, C < ...
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... V BAT Load Current (mA) Figure 9. Charger Efficiency Figure 11. Auto-Charge Startup =100mA, OTG=1, V INLIM © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 =4.2V, V =5.0V, and T OREG BUS 900 800 700 600 500 400 300 200 100 4 4 ...
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... Figure 13. AutoCharge Startup with 300mA Limited Charger / Adaptor, I =500mA, OTG=1, V INLIM Figure 15. Battery Removal / Insertion during Charging, V =3.9V, I =950mA BAT OCHARGE © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 =4.2V, V =5.0V, and T =25°C. OREG BUS A Figure 14. Charger Startup with HZ_MODE Bit Reset, =3.4V I =500mA, I ...
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... Charge Mode Typical Characteristics Unless otherwise specified, circuit of Figure 1, V Figure 17. No Battery at V Power-up; FAN5400, FAN5403 Figure 18. No Battery at V BUS 200 150 -30C +25C +85C 100 50 0 4.0 4.5 5.0 Input Voltage, V BUS Figure 19. VBUS Current in High-Impedance Mode with Battery Open © 2009 Fairchild Semiconductor Corporation FAN5400 Family • ...
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... V Load Current (mA) BUS Figure 23. Output Regulation vs. V 250 200 150 100 50 2 2.5 3 3.5 Battery Voltage, V Figure 25. Quiescent Current © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 =3.6V, T =25°C. BAT A 100 2.7VBAT 80 3.6VBAT 4.2VBAT 75 200 250 300 0 BAT 5.12 2 ...
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... Unless otherwise specified, using circuit of Figure 1, V Figure 27. Boost PWM Waveform 100 150 V Load Current (mA) BUS Figure 29. Output Ripple vs. V © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 =3.6V, T =25°C. BAT A Figure 28. Boost PFM Waveform 30 2.7VBAT 3.6VBAT 25 4.2VBAT 4.5VBAT 200 ...
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... Boost Mode Typical Characteristics Unless otherwise specified, using circuit of Figure 1, V Figure 31. Startup, 3.6V , 44 Load, Additional 10µF, BAT X5R Across V Figure 33. Load Transient, 5-155-5mA, t © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 =3.6V, T =25°C. BAT A Figure 32. V BUS =t =100ns Figure 34. Load Transient, 5-255-5mA, t ...
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... V BAT charging circuit is then started and the battery is charged © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 with a constant current if sufficient input power is available. The current slew rate is limited to prevent overshoot. The FAN540X is designed to work with a current-limited input source at VBUS. During the current regulation phase of ...
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... Output Voltage Regulation Battery Charging Current Limit Input Current Limit Charge Termination Limit Weak Battery Voltage © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 A new charge cycle begins when one of the following occurs: OUT The battery voltage falls below V ...
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... VBUS_VALID other non-compliant chargers are rejected. © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 USB-Friendly Boot Sequence For all versions except FAN5401, FAN5404 At VBUS POR, when the battery voltage is above the weak battery threshold (V ...
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... Flow Charts © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 Figure 37. Charger VBUS POR 20 www.fairchildsemi.com ...
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... Indicate Charging NO Disable Charging Timeout? Indicate VBUS Fault I OUT NO Termination enabled V BAT Stop Charging Enable IDET for T © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 Disable Charging Indicate VBUS Fault Enable I , SHORT Reset Safety reg Indicate Charging T 15MIN YES NO HIGHZ mode < I ...
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... Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 Figure 39. Charge Configuration Figure 40. HZ-State 22 www.fairchildsemi.com ...
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... Charge Start Start T 15MIN T 15MIN Active? Figure 41. Timer Flow Chart for FAN5400, FAN5402, FAN5403, FAN5405 Reset T 32SEC YES Figure 42. Timer Flow Chart for FAN5401, FAN5404 © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 Reset Registers NO Start T 32SEC YES Stop T 15MIN ...
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... If the host attempts to OREG write a value higher than VSAFE or ISAFE to OREG or IOCHARGE, respectively; the VSAFE, ISAFE value appears as the OREG, IOCHARGE register value, respectively. © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 Table 9. I Bits (REG6[6:4]) ISAFE (REG6[6:4]) DEC 0 ...
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... Table 11 (measured with T =25°C). Note that as power dissipation increases, the A effective decreases due to the larger difference between JA the die temperature and its ambient. Table 11. FAN5400 Evaluation Board Measured Power (W) 0.504 0.844 1.506 Charge Mode Input Supply Protection Sleep Mode When V ...
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... Timer Fault Battery © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 Charge Mode Control Bits Setting either HZ_MODE or CE through I is set to No Limit. charger and puts the IC into High-Impedance Mode and resets t 32S t begins running and, when it overflows, all registers ...
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... Battery Voltage, V BAT Figure 43. Output Resistance (R © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0 function of I BUS regulator is in PWM Mode (continuous conduction) as: V OUT At V =3.3V, and I BAT V OUT At V =2.7V, and I BAT ...
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... Figure 44. Boost Response Attempting to Start into V Short Circuit (Times in s) © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 VREG Pin The VREG pin on FAN5400 - FAN5402 provides a voltage modulation protected from over-voltage surges on VBUS, which can be ON used to run auxiliary circuits. This voltage is essentially a ...
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... ICHG I Control Loop CHARGE 2 IBUS I Limiting Charging Current BUS 1 VBUS_VALID V Not Valid BUS 0 CV Constant Current Charging © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 STATE 0 < – V ITERM CSIN BAT < 1mV V – V CSIN BAT V > V BAT SHORT V > V ...
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... SDA SCL Figure 46. Start Bit A transaction ends with a STOP condition, which is defined as SDA transitioning from with SCL HIGH, as shown in Figure 47. © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 2 Mode I C-Bus® SDA SCL During a read from the FAN540X (Figure 50), the master ...
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... Bus control is signified by the shading of the packet, Master Drives Bus defined as and All addresses and data 7 bits S Slave Address 7 bits S Slave Address 0 © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 Table 21. Bit Definitions for Figure 49, Figure 50 Symbol Slave Drives Bus . S are MSB first bits 0 0 ...
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... Register Descriptions The FAN5400-FAN5402 have seven user-accessible registers; the FAN5403-05 have an additional two registers, as defined in Table 22. 2 Table 22 Register Address IC ALL FAN5403-FAN5405 ALL Table 23. Register Bit Definitions This table defines the operation of each register bit for all IC versions. Default values are in bold text. ...
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... RESET 1 6:4 IOCHARGE Table 5 R/W 3 Reserved 1 2:0 ITERM Table 6 R/W © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 (Continued) Register Address: 01 Input current limit, see Table 7 3.4V 3.5V 3.6V 3.7V Disable charge current termination Enable charge current termination Charger enabled Charger disabled Not High-Impedance Mode High-Impedance Mode ...
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... See 3 ICHG Table 19 2 IBUS 1 VBUS_VALID 0 CV © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 (Continued) Register Address Unused 1.8V regulator is ON 1.8V regulator is OFF Output current is controlled by IOCHARGE bits Voltage across R for output current control is set to 22.1mV (325mA for SENSE R =68m ...
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... SW, PMID, and VBUS pins. All power and ground pins must be © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 routed to their bypass capacitors using top copper if possible. Copper area connecting to the IC should be maximized to improve thermal performance. ...
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... Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2009 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0 ...
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... Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.7 37 www.fairchildsemi.com ...