BQ24038RHLRG4

Product Summary

The BQ24038RHLRG4 is a single-chip charge and system power-path management IC. The BQ24038RHLRG4 is a highly integrated Li-ion linear charger and system power-path management device targeted at space-limited portable applications. The BQ24038RHLRG4 offers intergrated USB-port and DC supply (AC adapter), power-path management with autonomous power-source selection, power FETs and current sensors, high accuracy current and voltage regulation, charge status, and charge termination, in a single monolithic device. The applications of the BQ24038RHLRG4 include Smart Phones and PDA, MP3 Players, Digital Cameras Handheld Devices, Internet Appliances.

Parametrics

BQ24038RHLRG4 absolute maximum ratings: (1)Input voltage AC(DC voltage wrt (with respect to) VSS): –0.3 V to 7 V; (2)Input voltage USB(DC voltage wrt VSS): -0.3V to 7V; (3)Input voltage (BAT,CE,DPPM,ACPG,PSEL,OUT, ISET1, ISET2, STAT1,STAT2,TS,USBPG,PG,VBSEL,(all DC voltage wrt VSS)): -0.3V to 7V; (4)Input voltage LDO (DC voltage wrt VSS): –0.3V to VO(OUT) +0.3V; (5)Input voltage TMR: -0.3V to VO(LDO) +0.3V; (6)Input current AC: 3.5 A; (7)Input current USB: 1000 mA; (8)Output current BAT: –4A to 3.5A; (9)Output current OUT: 4A; (10)Output source current(in regulation at 3.3V LDO) LDO: 30 mA; (11)Output sink current ACPG, STAT1, STAT2, USBPG, PG: 1.5 mA; (12)Storage temperature range, Tstg: –65℃ to 150℃; (13)Junction temperature range, TJ: –40℃ to 150℃; (14)Lead temperature (soldering, 10 seconds): 300℃.

Features

BQ24038RHLRG4 features: (1)Small 3.5mm×4.5mm QFN Package; (2)Designed for Single-Cell Li-Ion- or Li-Polymer-Based Portable Applications; (3)Integrated Dynamic Power-Path Management (DPPM) Feature Allowing the AC Adapter or the USB Port to Simultaneously Power the System and Charge the Battery; (4)Power Supplement Mode Allows Battery to Supplement the USB or AC Input Current; (5)Autonomous Power Source Selection (AC Adapter or USB); (6)Integrated USB Charge Control With Selectable 100-mA and 500-mA Maximum Input Current Regulation Limits; (7)Dynamic Total Current Management for USB; (8)Supports Up to 2-A Total Current; (9)3.3-V Integrated LDO Output; (10)Thermal Regulation for Charge Control; (11)Charge Status Outputs for LED or System Interface Indicates Charge and Fault Conditions; (12)Reverse Current, Short-Circuit, and Thermal Protection; (13)Power Good (AC Adapter and USB Port Present) Status Outputs; (14)Charge Voltage Options: 4.1V, 4.2V, or 4.36V.

Diagrams