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TPS65520A

更新时间： 2024-11-14 11:58:27
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61页 1556K
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POWER MANAGEMENT IC FOR DIGITAL STILL CAMERA

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TPS65520A  
www.ti.com  
SLVS657–JUNE 2006  
POWER MANAGEMENT IC FOR DIGITAL STILL CAMERA  
FEATURES  
APPLICATIONS  
•
Digital Still Cameras  
•
Highly Efficient, 8-Channel Power  
Management IC  
DESCRIPTION  
•
Fully Integrated Power MOSFETs  
(Except CH-7)  
The TPS65520A is a highly efficient, 8-channel  
power management IC for digital still cameras  
(DSCs) integrating power MOSFETs. The device  
operates from an input voltage range of 1.5 V to 5 V.  
•
•
•
Minimal External Components  
Input Voltage Range: 1.5 to 5 V  
Short-Circuit Protection (SCP)  
(Except for CH-6 and CH-8)  
The optimized circuit configuration maintains stable  
regulation characteristics while minimizing the  
number of external components required for phase  
compensation and other purposes.  
•
Overvoltage Protection (OVP)  
(CH-2, CH-3, CH-6, and CH-7)  
•
•
•
•
Overcurrent Protection (OCP) (CH-6)  
Thermal Shutdown (TSD)  
The TPS65520A controls each output channel by  
communicating with the Sub-CPU through a serial  
interface.  
High-Accuracy Output Voltage with Trimming  
8 mm x 8 mm BGA Package  
CIRCUIT  
CONFIGURATION  
OUTPUT  
VOLTAGE [V]  
ADJUSTABLE  
PARAMETER  
POWER  
MOSFET  
NAME(1)  
RECTIFICATION  
PURPOSE  
CPU, DSP I/F  
CH-1  
CH-2  
H-bridge step-up/down  
Step-down  
2.65 ~ 3.2  
1.1 ~ 1.8  
Output voltage  
Output voltage  
Built-in  
Synchronous  
Synchronous  
Built-in  
CPU, DSP core  
Output voltage,  
duty cycle  
CH-3  
Step-up  
4.5 ~ 5.2  
Built-in  
Synchronous  
Motor, audio  
Asynchronous, with  
external rectification  
diode  
Output voltage,  
duty cycle  
CH-4  
Step-up  
15 ~ 16.5  
Built-in  
LCD, CCD  
Asynchronous, with  
external rectification  
diode  
Output voltage,  
duty cycle  
CH-5  
CH-6  
Inversion  
–9 ~ –7.5  
5.6 ~ 21  
Built-in  
Built-in  
LCD, CCD  
Asynchronous, with  
external rectification  
diode  
Step-up with constant  
current control  
Output voltage,  
duty cycle  
Back light LED  
Step-down  
Step-up  
2.5 ~ 3.2  
4.4 ~ 5.1  
Output voltage,  
duty cycle  
CH-7  
CH-8  
External  
Built-in  
Synchronous  
Synchronous  
Reserved/switchable  
Step-up/pass-through  
with skip  
3.6 ~ VCC  
IC internal power supply  
LDO-1  
LDO-2  
LDO-3  
LDO-4  
LDO-5  
2.9  
2.9  
Sub-CPU I/F  
Sub-CPU core  
Charge backup battery  
USB  
3.1  
3.1  
8.5 ~ 13.5  
Output voltage  
LCD  
(1) CH-N represents switching regulators. LDO-N represents series regulators.  
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.  
TMS320 is a trademark of Texas Instruments.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2006, 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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