GENERAL DESCRIPTION
The XC6801 series is a constant-current/constant-voltage linear charger IC for single cell lithium-ion batteries. The XC6801 includes a reference voltage source, battery voltage monitor, driver transistor, constant-current/constant-voltage charge circuit, overheat protection circuit and phase compensation circuit. The battery charge termination voltage is internally set to 4.2V ±0.7% and the trickle charge voltage and accuracy is 2.9V ±3%. In trickle charge mode, a safe battery charge is possible because approximately only 1/10 of the full charge current is supplied to the battery. As it is possible to select a highly accurate charge current of either 100mA (MAX.) for L level input to the LIM pin or 500mA (MAX.) for H level, the series is ideal for applications where the charge is from USB. The series’ charge status output pin, /CHG pin, is capable of checking the IC’s charging state via connection to an external LED.

FEATURES
*Operating Voltage Range : 4.25V ~ 6.0V
*Charge Current(externally set) : 100mA (MAX.) @ LIM pin=L, 500mA (MAX.) @ LIM pin=H
*Charge Termination Voltage : 4.2V ±0.7%
*Trickle Charge Voltage : 2.9V ±3%
*Supply Current (Stand-by) : 12μA (TYP.)
*Packages : SOT-89-5, SOT-25, USP-6C
*Constant-current/constant-voltage operation
*with thermal shutdown
*Automatic recharge
*Charge status output pin
*Soft-start function (Inrush limit current)

APPLICATIONS
*USB charge applications
*Charging docks, charging cradles
*MP3 players, portable audio players
*Cellular phones, PDAs
*Bluetooth headsets

XC6801A421PR-G, XC6801A421MR-G, XC6801A421ER-G
TAG charger, ic, linear

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DESCRIPTION
The TPS65573 offers a complete solution for a charging photo flash capacitor and flashing xenon tube with insulated gate bipolar transfer (IGBT) driver. This device has an integrated voltage reference, power (SW), comparators for peak current detection/power SW turnon detection/charge complete detection, IGBT driver and control logics for charging applications/driving IGBT applications.
Compared with discrete solutions, this device reduces the component count, shrinks the total solution size, and erases the difficulty of design for xenon tube application.
Additional advantages are a fast charging time and high efficiency since this device has an optimized pulse width modulation (PWM) control algorithm for photo flash charging. Also this device has high accuracy for peak current detection and for charge completion detection. The distribution of charging time is smaller.
Other provisions of the device include sensing the output voltage at the primary side, programmable peak current at the primary side, protection features (thermal shutdown and overcurrent), an output pin for charge completion detection, input pins for charge enable, flash acceptable, and flash on.

FEATURES
*Wide Input Voltage
-VBAT = 1.4 V to 12 V
-VCC = 2.5 V to 5.5 V
*Integrated 50-V Power Switch With Lower R ON
*Programmable Peak Current at Primary Side From 0.5 A to 1.5 A
*Optimized Switch ON/OFF Control for Fast Charging
*Charge Complete Detection at Primary Side With High Accuracy
*Integrated IGBT Driver
*2-mm × 3-mm, 12-Pin WSON Package
*Protection
-Overcurrent Protection (OCP)
-Thermal Shutdown (TSD)

APPLICATIONS
*Digital Still Cameras
*Optical Film Cameras
*Digital Video Camcorders
*Cell Phones

TPS65573DSST, TPS65573DSSR

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Description
The DG540/541/542 are high performance monolithic wideband/video switches designed for switching RF, video and digital signals. By utilizing a “T” switch configuration on each channel, these devices achieve exceptionally low crosstalk and high off-isolation. The crosstalk and off-isolation of the DG540 are further improved by the introduction of extra GND pins between signal pins.
To achieve TTL compatibility, low channel capacitances and fast switching times, the DG540 family is built on the Siliconix proprietary D/CMOS process. Each switch conducts equally well in both directions when on.

Features
*Wide Bandwidth: 500 MHz
*Low Crosstalk: –85 dB
*High Off-Isolation: –80 dB @ 5 MHz
*“T” Switch Configuration
*TTL Logic Compatible
*Fast Switching—tON: 45 ns
*Low rDS(on): 30

Applications
*RF and Video Switching
*RGB Switching
*Local and Wide Area Networks
*Video Routing
*Fast Data Acquisition
*ATE
*Radar/FLR Systems
*Video Multiplexing

DG541, DG542, DG540DJ, DG541DJ, DG542DJ

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