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參數(shù)資料
| 型號(hào)： | TPS65573DSST |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1.5 A SWITCHED CAPACITOR CONVERTER, PDSO12 |
| 封裝： | 2 X 3 MM, SON-12 |
| 文件頁(yè)數(shù)： | 1/16頁(yè) |
| 文件大?。?/td> | 681K |
| 代理商： | TPS65573DSST |
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1
FEATURES
DESCRIPTION/ORDERING INFORMATION
APPLICATIONS
www.ti.com................................................................................................................................................................................................... SLVS868 – MARCH 2009
INTEGRATED PHOTO FLASH CHARGER AND IGBT DRIVER
2
Wide Input Voltage
–
VBAT = 1.4 V to 12 V
The TPS65573 offers a complete solution for a
charging photo flash capacitor and flashing xenon
–
VCC = 2.5 V to 5.5 V
tube with insulated gate bipolar transfer (IGBT) driver.
Integrated 50-V Power Switch With Lower R
ON
This device has an integrated voltage reference,
Programmable Peak Current at Primary Side
power
(SW),
comparators
for
peak
current
From 0.5 A to 1.5 A
detection/power
SW
turnon
detection/charge
complete detection, IGBT driver and control logics for
Optimized Switch ON/OFF Control for Fast
charging applications/driving IGBT applications.
Charging
Compared with discrete solutions, this device reduces
Charge Complete Detection at Primary Side
the component count, shrinks the total solution size,
With High Accuracy
and erases the difficulty of design for xenon tube
Integrated IGBT Driver
application.
2-mm × 3-mm, 12-Pin WSON Package
Additional advantages are a fast charging time and
Protection
high efficiency since this device has an optimized
–
Overcurrent Protection (OCP)
pulse width modulation (PWM) control algorithm for
photo flash charging. Also this device has high
–
Thermal Shutdown (TSD)
accuracy for peak current detection and for charge
completion detection. The distribution of charging
time is smaller.
Digital Still Cameras
Other provisions of the device include sensing the
Optical Film Cameras
output voltage at the primary side, programmable
Digital Video Camcorders
peak current at the primary side, protection features
Cell Phones
(thermal shutdown and overcurrent), an output pin for
charge completion detection, input pins for charge
enable, flash acceptable, and flash on.
Figure 1. Application Circuit
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright 2009, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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