FSA831 datasheet, PDF - EEWORLD Datasheet

Datasheet> All Categories > semiconductor> Analog mixed-signal IC> FSA831

FSA831: DescriptionPOWER SUPPLY SUPPORT CKT; Categorysemiconductor Analog mixed-signal IC; File Size327KB，3 Pages; ManufacturerFairchild; Websitehttp://www.fairchildsemi.com/

Download Datasheet Parametric Compare View All

FSA831 Overview

POWER SUPPLY SUPPORT CKT

FSA831 Parametric

Parameter Name	Attribute value
state	ACTIVE
Analog IC other types	Power supply support circuit

Preview

Download Datasheet

View All

FSA831 — USB2.0 High-Speed (480Mbps) Charger Detector with Isolation Switch

November 2011

FSA831 — USB2.0 High-Speed (480Mbps) Charger

Detection with Isolation Switch

Features

USB Detection

USB Battery Charging Rev. 1.2

Supports Data Contact Detect (DCD)

Dead Battery Provision (DBP)

with 30-Minute Timer

Isolation Switch Closes for

Charging Downstream Port (CDP)

Standard Downstream Port (SDP)

28V Over-Voltage Tolerance

-2V Under-Voltage Tolerance

10-Lead MicroPak™

1.6 x 2.1mm, 0.5mm Pitch

FSA831L10X

Description

The FSA831 is a charger-detection IC with an integrated

isolation switch for use with a micro/mini USB port. The

FSA831 detects battery chargers and is compliant with USB

Battery Charging Specification, Rev 1.2 (BC1.2). The

algorithm incorporates Data Contact Detection (DCD), which

ensures that the shorter, inner pins of the USB connector are

making contact prior to continuing with battery charger

detection. The device determines if a Dedicated Charging

Port (DCP), Charging Downstream Port (CDP), or a typical

PC host, called a Standard Downstream Port (SDP), is

connected. If a charger is detected, the FSA831 determines

whether the charger is a DCP or CDP. For SDP and CDP

detection, an internal isolation switch is closed to connect

the D+/D- lines of the USB cable to the resident USB

transceiver within the portable device. The FSA831

conforms to all the constraints for the Dead Battery Provision

(DBP) within the BC1.2 specification, including a 30-minute

timer that cannot exceed 45 minutes, per BC1.2.

Switch Type

BUS

Package

Ordering

Information

Applications



MP3, Mobile Internet Device (MID), Cell Phone, PDA,

Digital Camera, Notebook and Netbook

Related Resources



For samples and questions, please contact:

analogswitch@fairchildsemi.com.

Typical Application

CHG_AL_N

FSA831

Regulator

and Switch

Control

System on

Chip (SoC)

USB

PHY

USB Port

OVT

GOOD_BAT

DM_HOST

DP_HOST

SW_OPEN

BUS

DM_CON

DP_CON

BUS_IN

D-

D+

Charger

Detect

CHG_DET

GND

Li+

Bat

Charger

Figure 1. Mobile Phone Example

FSA831 • Rev. 1.0.2

www.fairchildsemi.com

FSA831 Related Products

	FSA831	FSA831L10X
Description	POWER SUPPLY SUPPORT CKT	POWER SUPPLY SUPPORT CKT
state	ACTIVE	ACTIVE
Analog IC other types	Power supply support circuit	Power supply support circuit

Recommended Resources

Bedside touch light detection control circuit

TA222AP power amplifier circuit diagram

Mains power supply delay automatic extinguishing touch switch

Leakage detection socket device circuit diagram

EKG amplification circuit

Color TV remote control 38

Shortcut: A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV AW AX AY AZ B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 BA BB BC BD BE BF BG BH BI BJ BK BL BM BN BO BP BQ BR BS BT BU BV BW BX BY BZ C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 CA CB CC CD CE CF CG CH CI CJ CK CL CM CN CO CP CQ CR CS CT CU CV CW CX CY CZ D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 DA DB DC DD DE DF DG DH DI DJ DK DL DM DN DO DP DQ DR DS DT DU DV DW DX DZ

Popular Components