FAN5403UCX

FAN5400 Family— USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator November 2010 FAN5400 Family 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 Charge Voltage Accuracy: ±0.5% at 25°C ±1% from 0 to 125°C Description The FAN5400 family (FAN540X) combines a highly integrated switch-mode charger, to minimize single-cell Lithium-ion (Liion) charging time from a USB power source, and a boost regulator to power a USB peripheral from the battery. The charging parameters and operating modes are 2 programmable through an I C Interface that operates up to 3.4Mbps. The charger and boost regulator circuits switch at 3MHz to minimize the size of external passive components. The FAN540X provides battery charging in three phases: conditioning, constant current, and constant voltage. To ensure USB compliance and minimize charging time, the 2 input current is limited to the value set through the I C host. Charge termination is determined by a programmable minimum current level. A safety timer with reset control 2 provides a safety backup for the I C host. The integrated circuit (IC) automatically restarts the charge cycle when the battery falls below an internal threshold. If the input source is removed, the IC enters a high-impedance mode with leakage from the battery to the input prevented. 2 Charge status is reported back to the host through the I C port. Charge current is reduced when the die temperature reaches 120°C. The FAN540X can operate as a boost regulator on command from the system. The boost regulator includes a soft-start that limits inrush current from the battery. The FAN540X is available in a 1.96 x 1.87mm, 20-bump, 0.4mm pitch WLCSP package. L1 1μH 0.1μF ±5% Input Current Regulation Accuracy ±5% Charge Current Regulation Accuracy 20V Absolute Maximum Input Voltage 6V Maximum Input Operating Voltage 1.25A Maximum Charge Rate Programmable through High-Speed I C Interface (3.4Mb/s) with Fast Mode Plus Compatibility 2 – – – – Input Current Fast-Charge / Termination Current Charger Voltage Termination Enable 3MHz Synchronous Buck PWM Controller with Wide Duty Cycle Range Small Footprint 1μH External Inductor Safety Timer with Reset Control 1.8V Regulated Output from VBUS for Auxiliary Circuits Weak Input Sources Accommodated by Reducing Charging Current to Maintain Minimum VBUS Voltage Low Reverse Leakage to Prevent Battery Drain to VBUS 5V, 300mA Boost Mode for USB OTG for 2.5 to 4.5V Battery Input VBUS CBUS 1μF SW PGND CSIN FAN540X VBAT COUT RSENSE 68mΩ PMID CMID 4.7μF + Battery Applications Cell Phones, Smart Phones, PDAs Tablet, Portable Media Players Gaming Device, Digital Cameras SDA SCL DISABLE OTG/USB# STAT VREG CREG 1μF SYSTEM LOAD CBAT 10μF Figure 1. Typical Application (FAN5403-05 Pinout) All trademarks are the property of their respective owners. © 2008 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.2 www.fairchildsemi.com FAN5400 Family — USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator Ordering Information Part Number FAN5400UCX FAN5401UCX FAN5402UCX FAN5403UCX FAN5404UCX FAN5405UCX Temperature Range -40 to 85°C -40 to 85°C -40 to 85°C -40 to 85°C -40 to 85°C -40 to 85°C Package 20- Bump, WaferLevel Chip-Scale Package (WLCSP), 0.4mm Pitch, Estimated Size: 1.96 x 1.87mm PN Bits: IC_INFO[4:3] 01 00 01 10 11 10 Packing Method Tape and Reel Tape and Reel Tape and Reel Tape and Reel Tape and Reel Tape and Reel Table 1. Feature Comparison Summary Part Number FAN5400 FAN5401 FAN5402 FAN5403 FAN5404 FAN5405 PN Bits: REG3[4:3] 01 00 01 10 11 10 Slave Address 1101011 1101011 1101011 1101011 1101011 1101010 Automatic Charge Yes No Yes Yes No Yes Special (1) Charger No No No Yes Yes Yes Safety Limits No No No Yes Yes Yes Battery Absent Behavior OFF OFF ON OFF OFF ON E2 Pin AUXPWR (Connect to VBAT) VREG (E3 Pin) PMID DISABLE 1.8V Note: 1. Special charger is a current limited charger that is not a USB compliant source. Table 2. Recommended External Components Component L1 CBAT CMID CBUS Description 1μH, 20%, 1.3A, 2016 10μF, 20%, 6.3V, X5R, 0603 4.7μF, 10%, 6.3V, X5R, 0603 1.0μF, 10%, 25V, X5R, 0603 Vendor Murata: LQM2MPN1R0M or Equivalent Murata: GRM188R60J106M TDK: C1608X5R0J106M Murata: GRM188R60J475K TDK: C1608X5R0J475K Murata GRM188R61E105K TDK:C1608X5R1E105M Parameter L DCR (Series R) C C (2) Typ. 1.0 85 10 4.7 1.0 Unit μH mΩ μF μF μF C Note: 2. 6.3V rating is sufficient for CMID since PMID is protected from over-voltage surges on VBUS by Q3 (Figure 3). © 2008 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.2 www.fairchildsemi.com 2 FAN5400 Family — USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator Block Diagram Figure 2. IC and System Block Diagram VBUS CIN1 Q3 PMID CIN2 Q1 CHARGE PUMP Q1A Q1B CSIN SW L1 1μH PMID Greater than VBAT Less than VBAT Q1A ON OFF Q1B OFF ON Q2 COUT PGND VBAT SYSTEM LOAD RSENSE 68mΩ + Battery CBAT Figure 3. Power Stage © 2008 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.2 www.fairchildsemi.com 3 FAN5400 Family — USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator Physical Dimensions BALL A1 INDEX AREA 0.03 C 2X D 1.60 0.40 E A F B A1 1.20 Ø0.20 Cu Pad Ø0.30 Solder Mask Opening 0.40 0.03 C 2X TOP VIEW RECOMMENDED LAND PATTERN (NSMD TYPE) 0.06 C 0.05 C 0.625 0.547 E 0.378±0.018 0.208±0.021 C D SEATING PLANE SIDE VIEWS NOTES: 1.20 0.40 E D C B A 1234 F (X) ±0.018 0.005 Ø0.260±0.02 20X CAB A. NO JEDEC REGISTRATION APPLIES. B. DIMENSIONS ARE IN MILLIMETERS. C. DIMENSIONS AND TOLERANCE PER ASMEY14.5M, 1994. D. DATUM C IS DEFINED BY THE SPHERICAL CROWNS OF THE BALLS. E. PACKAGE NOMINAL HEIGHT IS 586 MICRONS ±39 MICRONS (547-625 MICRONS). F. FOR DIMENSIONS D, E, X, AND Y SEE PRODUCT DATASHEET. G. DRAWING FILNAME: MKT-UC020AArev2. 1.60 0.40 (Y) ±0.018 BOTTOM VIEW Figure 51. 20-Ball WLCSP, 4X5 Array, 0.4mm Pitch, 250µm Ball Product-Specific Dimensions Product FAN540XUCX D 1.960 +0.030 E 1.870 +0.030 X 0.180 Y 0.335 Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. 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/. © 2008 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.2 www.fairchildsemi.com 35 FAN5400 Family — USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator www.fairchildsemi.com © 2008 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.2 36