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TPS61000_12

更新时间： 2024-11-23 12:16:15
品牌 Logo 应用领域
德州仪器 - TI 转换器升压转换器
页数 文件大小 规格书
26页 997K
描述
SINGLE- AND DUAL-CELL BOOST CONVERTER WITH START-UP INTO FULL LOAD

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TPS61000_12 数据手册

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TPS61000, TPS61001, TPS61002, TPS61003, TPS61004, TPS61005, TPS61006, TPS61007  
SINGLE- AND DUAL-CELL BOOST CONVERTER WITH START-UP INTO FULL LOAD  
SLVS279C – MARCH 2000 – REVISED APRIL 2003  
D
Start-Up Into a Full Load With Supply  
Voltages as Low as 0.9 V Over Full  
Temperature Range  
D
Low-EMI Converter (Integrated Antiringing  
Switch Across Inductor)  
D
Micro-Size 10-Pin MSOP Package  
D
D
D
Minimum 100-mA Output Current From  
0.8-V Supply Voltage, 250 mA From 1.8 V  
D
Evaluation Modules Available  
(TPS6100xEVM–156)  
High Power Conversion Efficiency,  
up to 90%  
D
Applications Include:  
– Single- and Dual-Cell Battery Operated  
Products  
– MP3-Players and Wireless Headsets  
– Pagers and Cordless Phones  
– Portable Medical Diagnostic Equipment  
– Remote Controls  
Power-Save Mode for Improved Efficiency  
at Low Output Currents  
D
Device Quiescent Current Less Than 50 µA  
D
Added System Security With Integrated  
Low-Battery Comparator  
·
description  
The TPS6100x devices are boost converters intended for systems that are typically operated from a single- or  
dual-cell nickel-cadmium (NiCd), nickel-metal hydride (NiMH), or alkaline battery. The converter output voltage  
can be adjusted from 1.5 V to a maximum of 3.3 V and provides a minimum output current of 100 mA from a  
single battery cell and 250 mA from two battery cells. The converter starts up into a full load with a supply voltage  
of 0.9 V and stays in operation with supply voltages as low as 0.8 V.  
The converter is based on a fixed-frequency, current-mode pulse-width-modulation (PWM) controller that goes  
into power-save mode at low load currents. The current through the switch is limited to a maximum of 1100 mA,  
depending on the output voltage. The current sense is integrated to further minimize external component count.  
The converter can be disabled to minimize battery drain when the system is put into standby.  
A low-EMI mode is implemented to reduce interference and radiated electromagnetic energy that is caused by  
the ringing of the inductor when the inductor discharge-current decreases to zero. The device is packaged in  
the space-saving 10-pin MSOP package.  
TPS61006  
L1  
D1  
V
O
= 3.3 V  
START-UP TIMING INTO 33-Ω LOAD  
140  
120  
33 µH  
C
10 µF  
i
7
V
OUT  
C
o
SW  
3
2
6
V
OUT  
22 µF  
V
BAT  
5
R3  
100  
80  
R1  
R2  
9
LBI  
LBO 10  
Low Battery  
Warning  
I
OUT  
TPS61006  
8
1
NC  
EN  
FB  
3
2
60  
40  
20  
0
R4  
10 kΩ  
ON  
1
0
COMP  
OFF  
GND  
4
C2  
33 nF  
C1  
100 pF  
EN  
TYPICAL APPLICATION CIRCUIT FOR FIXED  
OUTPUT VOLTAGE OPTION  
0
2
4
6
8
10 12 14 16 18 20  
Time – ms  
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.  
Copyright 2000–2003, Texas Instruments Incorporated  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of Texas Instruments  
standard warranty. Production processing does not necessarily include  
testing of all parameters.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...26

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