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Technical content

Features

 2.3V to 5.5V Input Voltage Operating Range  Low RON between Battery and Load Maximum 50mΩ at VIN = 4.2V  Low RON between Charger and Battery Maximum 125mΩ at VIN = 4.2V  Maximum DC Current for Load Switch: 2.5A  Maximum DC Current for Charge Switch: 1.5A  Slew Rate Controlled to 30µs Nominal Rise Time  Seamless Break-Before-Make Transition  Quiescent Current: 30µA Typical  Thermal Shutdown  Reverse Current Blocking (RCB) between Battery A and Battery B  RESET Timer Delay: 7s Typical  ESD Protected: - Human Body Model: >2.5kV - Charged Device Model: >1.5kV - IEC 61000-4-2 Air Discharge: >15kV - IEC 61000-4-2 Contact Discharge: >8kV  1.6mm X 1.6mm, 16-Bump, 0.4mm Pitch, WLCSP

Applications

 Dual-Battery Cell phone  Dual-Battery Portable Equipment

Description

The FPF3003 is a single-chip solution for dual-battery power-path switching, includ ing integrated P-channel switches and analog control f eatures. The input voltage range operates from 2.3V to 5.5V. The device selects one of two batteries to provide power to the system, enabling one battery to be charged by the external battery charger. The FPF3003 has battery voltage monitoring to determine if the battery is under voltage. Special driver and digital circuitry allows the device to switch quickly between battery A and battery B, which allows hot swapping of battery packs. Maximum current from battery to load per channel is limited to a constant 2.5A and internal thermal shutdown circuits protect the part during fault conditions. The FPF3003 is available in a 1.6mm x 1.6mm, 16-bump, Wafer-Level Chip-Scale Package (WLCSP).

Ordering Information

(Charger-Battery) Max. RON at 4.2VIN (Battery-Load) Max. RON at 4.2VIN Typical tR Package FPF3003UCX QW 125m Ω 50m Ω 30µs 16-Bump, 0.4mm Pitch, 1.6mm x 1.6mm WLCSP

Figure 38. 1.6mmx1.6mm WLC SP, 16-Bumps 0.4mm Pitch warranty therein, which covers Fairchild products. http://www.fairchildsemi.com/packaging/.

0.005 CAB

0.05 C E

A. NO JEDEC REGISTRATION APPLIES. B. DIMENSIONS ARE IN MILLIMETERS. ±39 MICRONS (547-625 MICRONS). G. DRAWING FILNAME: MKT-UC016AArev2.

© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FPF3003 • Rev. 1.0.0 17 FPF3003 — IntelliMAX™ Full Functional Input Power Path Management Switch for Dual-Battery Portable Systems