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TPS65562

更新时间： 2024-10-01 12:47:11
品牌 Logo 应用领域
德州仪器 - TI 驱动器闪光灯双极性晶体管
页数 文件大小 规格书
16页 668K
描述
INTEGRATED PHOTO FLASH CHARGER AND IGBT DRIVER

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TPS65562 数据手册

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TPS65562  
www.ti.com  
SLVS775–JUNE 2007  
INTEGRATED PHOTO FLASH CHARGER AND IGBT DRIVER  
FEATURES  
APPLICATIONS  
•
Digital Still Cameras  
•
High Integrated Solution to Reduce  
Components  
•
Optical Film Cameras  
•
•
•
Integrated Voltage Reference  
Integrated 50-V Power Switch  
DESCRIPTION/ORDERING  
INFORMATION  
Integrated Insulated Gated BiPolar Transistor  
(IGBT) Driver  
This device offers a complete solution for charging  
photo flash capacitor from battery input, and  
subsequently discharging the capacitor to a xenon  
flash tube. This device has an integrated voltage  
reference, power switch, IGBT driver, and control  
logic blocks for charging applications and driving  
IGBT application. Compared with discreet solutions,  
this device reduces the component count, shrinks the  
solution size, and eases designs for xenon tube  
•
•
•
•
•
•
•
•
High Efficiency  
Programmable Peak Current, 0.9 A ~ 1.8 A  
Input Voltage of 1.6 V to 12 V  
Optimized Control Loop for Fast Charge Time  
Isolate IGBT VCC from VCC  
Output Voltage Feedback From Primary Side  
16-pin QFN Package  
application. Additional advantages are  
charging time and high efficiency from an optimized  
pulse width modulation (PWM) control algorithm.  
a
fast  
Protection  
–
–
–
MAX On Time  
MAX Off Time  
Other provisions of the device includes sensing the  
output voltage from the primary side, programmable  
peak current, thermal shutdown, an output pin for  
charge completion, and input pins for charge enable  
and flash enable.  
Over Current Shutdown to Monitor VDS at  
SW Pin (OVDS)  
–
Thermal Disable  
D1  
C1  
VA  
VOUT  
T1  
VCC  
VCC  
IGBT_VCC  
IGBT_VCC  
SW  
VBAT  
V
I/F  
V
I/F  
CHG  
DQ  
F1  
Controller  
R1  
XFULL  
or  
OV  
DS  
DQ  
F2  
ENA  
VCC  
U1  
ENA  
U0  
V_FULL  
D/A Conv.  
or  
U2  
MAX ON  
LOGIC  
TSD  
I_PEAK  
PGND  
I_PEAK  
ref  
Analog  
Circuit  
SW  
Vref  
U3  
IGBT_VCC  
U4  
G_IGBT  
SW1  
F_ON  
or  
ENA  
IGBT  
(NC)  
Figure 1. Typical Application Circuit  
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.  
PowerPAD is a trademark of Texas Instruments.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2007, Texas Instruments Incorporated  
 
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