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參數(shù)資料
| 型號(hào)： | TPS40004 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | "Low Input (2.25V-5.5V) 300 kHz Frequency |
| 中文描述： | 低輸入 (2.25V-5.5V) 300 kHz 頻率同步降壓控制器，具有輸出驅(qū)動(dòng)/吸入 |
| 文件頁數(shù)： | 12/20頁 |
| 文件大?。?/td> | 280K |
| 代理商： | TPS40004 |
TPS40000, TPS40001
TPS40002, TPS40003
TPS40004, TPS40005
SLUS507B JANUARY 2002 REVISED AUGUST 2003
2
www.ti.com
DESCRIPTION (continued)
The current-limit threshold is adjustable with a single resistor connected to the device. The TPS4000x
controllers implement a closed-loop soft start function. Startup ramp time is set by a single external capacitor
connected to the SS/SD pin. The SS/SD pin is also used for shutdown.
ORDERING INFORMATION
PACKAGED DEVICES MSOP(2) (DGQ)
APPLICATION
TA
FREQUENCY
SOURCE
ONLY
SOURCE/SINK
WITH PREBIAS(3)
SOURCE/SINK(3)
40
°C to 85°C
300 kHz
TPS40000DGQ
TPS40001DGQ
TPS40004DGQ
40
°C to 85°C
600 kHz
TPS40002DGQ
TPS40003DGQ
TPS40005DGQ
(2)
The DGQ package is available taped and reeled. Add R suffix to device type (e.g.
TPS40000DGQR) to order quantities of 2,500 devices per reel and 80 units per tube.
(3)
See Application Information section, p. 8.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range unless otherwise noted(1)
TPS4000x
UNIT
BOOT
VSW + 6
COMP, FB, ILIM, SS/SD
0.3 to 6
Input voltage range, VIN
SW
0.7 to 10.5
V
Input voltage range, VIN
SWT (SW transient < 50 ns)
2.5
V
VDD
6
Operating junction temperature range, TJ
40 to 150
Storage temperature, Tstg
55 to 150
°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
260
C
(1) Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only,
and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions”
is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
ACTUAL SIZE
3,05mm x 4,98mm
1
2
3
4
5
10
9
8
7
6
ILIM
FB
COMP
SS/SD
GND
BOOT
HDRV
SW
VDD
LDRV
DGQ PACKAGE(4).(5)
(TOP VIEW)
(4)
See technical brief SLMA002 for PCB guidelines for PowerPAD packages.
(5)
PowerPAD
t heat slug can be connected to GND (pin 5).
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS40004DGQ | 功能描述:電壓模式 PWM 控制器 Lo Input 300kHz Freq Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| TPS40004DGQG4 | 功能描述:電壓模式 PWM 控制器 Lo Input 300kHz Freq Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| TPS40004DGQR | 功能描述:電壓模式 PWM 控制器 Lo Input 300kHz Freq Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| TPS40004DGQRG4 | 功能描述:電壓模式 PWM 控制器 Lo Input 300kHz Freq Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| TPS40005 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW-INPUT VOLTAGE-MODE SYNCHRONOUS BUCK CONTROLLER |
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