FAN5400 Family USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator Features Description Fully Integrated, High-Efficiency Charger for Single-Cell Li-Ion and Li-Polymer Battery Packs Faster Charging than Linear 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. ±5% Input Current Regulation Accuracy Charge Voltage Accuracy: ±0.5% at 25°C ±1% from 0 to 125°C ±5% Charge Current Regulation Accuracy 20V Absolute Maximum Input Voltage 6V Maximum Input Operating Voltage 1.25A Maximum Charge Rate 2 Programmable through High-Speed I C Interface (3.4Mb/s) with Fast Mode Plus Compatibility – – – – 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 Low Reverse Leakage to Prevent Battery Drain to VBUS 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 5V, 300mA Boost Mode for USB OTG for 2.5 to 4.5V Battery Input 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. VBUS 1μF CBUS SDA SCL Gaming Device, Digital Cameras DISABLE OTG/USB# STAT L1 1μH COUT FAN540X RSENSE 0.1μF 68mΩ + Battery CSIN 4.7μF Applications Tablet, Portable Media Players PGND PMID CMID Cell Phones, Smart Phones, PDAs SW VBAT SYSTEM LOAD VREG CREG CBAT 10μF 1μF 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 November 2010 Part Number Temperature Range FAN5400UCX -40 to 85°C FAN5401UCX -40 to 85°C FAN5402UCX -40 to 85°C FAN5403UCX -40 to 85°C FAN5404UCX -40 to 85°C FAN5405UCX -40 to 85°C Package PN Bits: IC_INFO[4:3] Packing Method 01 Tape and Reel 00 Tape and Reel 01 Tape and Reel 10 Tape and Reel 11 Tape and Reel 10 Tape and Reel 20- Bump, WaferLevel Chip-Scale Package (WLCSP), 0.4mm Pitch, Estimated Size: 1.96 x 1.87mm Table 1. Feature Comparison Summary REG3[4:3] Slave Address Automatic Charge Special (1) Charger Safety Limits Battery Absent Behavior FAN5400 01 1101011 Yes No No OFF FAN5401 00 1101011 No No No OFF FAN5402 01 1101011 Yes No No ON FAN5403 10 1101011 Yes Yes Yes OFF FAN5404 11 1101011 No Yes Yes OFF FAN5405 10 1101010 Yes Yes Yes ON Part Number PN Bits: E2 Pin VREG (E3 Pin) AUXPWR (Connect to VBAT) 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 Description Vendor Parameter Typ. Unit L1 1μH, 20%, 1.3A, 2016 Murata: LQM2MPN1R0M or Equivalent L 1.0 μH DCR (Series R) 85 mΩ CBAT 10μF, 20%, 6.3V, X5R, 0603 Murata: GRM188R60J106M TDK: C1608X5R0J106M C 10 μF CMID 4.7μF, 10%, 6.3V, X5R, 0603 Murata: GRM188R60J475K TDK: C1608X5R0J475K 4.7 μF CBUS 1.0μF, 10%, 25V, X5R, 0603 Murata GRM188R61E105K TDK:C1608X5R1E105M 1.0 μF (2) C 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 Ordering Information 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 PMID Q3 CHARGE PUMP CIN2 Q1 Q1A Q1B PMID Greater than VBAT Less than VBAT Q1A ON OFF Q1B OFF ON CSIN L1 SW Q2 1μH RSENSE COUT 68mΩ PGND + Battery VBAT SYSTEM LOAD CBAT Figure 3. Power Stage © 2008 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.2 www.fairchildsemi.com 3 BALL A1 INDEX AREA F A E 1.20 B 0.03 C Ø0.20 Cu Pad A1 2X 1.60 D 0.40 Ø0.30 Solder Mask Opening 0.40 0.03 C 2X TOP VIEW RECOMMENDED LAND PATTERN (NSMD TYPE) 0.06 C 0.625 0.547 0.05 C C 0.378±0.018 0.208±0.021 E SEATING PLANE SIDE VIEWS D NOTES: 0.005 1.20 A. NO JEDEC REGISTRATION APPLIES. C A B B. DIMENSIONS ARE IN MILLIMETERS. Ø0.260±0.02 20X 0.40 E D C B 1.60 0.40 C. DIMENSIONS AND TOLERANCE PER ASMEY14.5M, 1994. D. DATUM C IS DEFINED BY THE SPHERICAL CROWNS OF THE BALLS. (Y) ±0.018 A E. PACKAGE NOMINAL HEIGHT IS 586 MICRONS ±39 MICRONS (547-625 MICRONS). F 1 2 3 4 (X) ±0.018 F. FOR DIMENSIONS D, E, X, AND Y SEE PRODUCT DATASHEET. BOTTOM VIEW G. DRAWING FILNAME: MKT-UC020AArev2. Figure 51. 20-Ball WLCSP, 4X5 Array, 0.4mm Pitch, 250µm Ball Product-Specific Dimensions Product D E X Y FAN540XUCX 1.960 +0.030 1.870 +0.030 0.180 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 Physical Dimensions FAN5400 Family — USB-Compliant Single-Cell Li-Ion Switching Charger with USB-OTG Boost Regulator 36 www.fairchildsemi.com © 2008 Fairchild Semiconductor Corporation FAN5400 Family • Rev. 1.0.2