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參數資料
| 型號： | TPS61041DBV |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | LOW POWER DC/DC BOOST CONVERTER IN SOT-23 PACKAGE |
| 中文描述： | 低功率DC / DC升壓轉換器SOT - 23封裝 |
| 文件頁數： | 4/18頁 |
| 文件大?。?/td> | 299K |
| 代理商： | TPS61041DBV |
www.ti.com
The TPS61040/41 limits this inrush current by increasing the current limit in two steps starting from
I
LIM
2
for the next 256 cycles, and then full current limit (refer to Figure 14).
I
LIM
4
for 256
cycles to
ENABLE
Pulling the enable (EN) to ground shuts down the device reducing the shutdown current to 1 μA (typical). Since
there is a conductive path from the input to the output through the inductor and Schottky diode, the output
voltage is equal to the input voltage during shutdown. The enable pin needs to be terminated and should not be
left floating. Using a small external transistor disconnects the input from the output during shutdown as shown in
Figure 18.
UNDERVOLTAGE LOCKOUT
An undervoltage lockout prevents misoperation of the device at input voltages below typical 1.5 V.When the input
voltage is below the undervoltage threshold the main switch is turned off.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature (unless otherwise noted)
(1)
DISSIPATION RATING TABLE
(1)
RECOMMENDED OPERATING CONDITIONS
TPS61040
TPS61041
SLVS413B–OCTOBER 2002–REVISED MAY 2004
DETAILED DESCRIPTION (continued)
UNIT
Supply voltages on pin VIN
(2)
Voltages on pins EN, FB
(2)
Switch voltage on pin SW
(2)
Continuous power dissipation
Operating junction temperature
Storage temperature
Lead temperature (soldering 10 seconds)
-0.3 V to 7 V
-0.3 V to V
IN
+ 0.3 V
30 V
See Dissipation Rating Table
-40
°
C to 150
°
C
-65
°
C to 150
°
C
260
°
C
T
J
T
Stg
(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.
All voltage values are with respect to network ground terminal.
(2)
T
≤
25
°
C
POWER RATING
357 mW
DERATING FACTOR
ABOVE T
A
= 25
°
C
3.5 mW/
°
C
T
= 70
°
C
POWER RATING
192 mW
T
= 85
°
C
POWER RATING
140 mW
PACKAGE
DBV
(1)
The thermal resistance junction to ambient of the 5-pin SOT23 is 250
°
C/W.
MIN
1.8
TYP
MAX
UNIT
V
V
μH
MHz
μF
μF
°
C
°
C
Vin
V
OUT
L
f
C
in
C
OUT
T
A
T
J
Input voltage range
Output voltage range
Inductor
(1)
Switching frequency
(1)
Input capacitor
(1)
Output capacitor
(1)
Operating ambient temperature
Operating junction temperature
6
28
2.2
10
1
4.7
1
-40
-40
85
125
(1)
Refer to application section for further information
4
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS61041DBVR | 功能描述:LED照明驅動器 28-V 250-mA Switch Boost Converter RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| TPS61041DBVR | 制造商:Texas Instruments 功能描述:SWITCHING STEP UP CONVERTER 61041 |
| TPS61041DBVRG4 | 功能描述:LED照明驅動器 28-V 250-mA Switch Boost Converter RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| TPS61041DBVT | 制造商:Texas Instruments 功能描述: |
| TPS61041DRV | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW-POWER DC/DC BOOST CONVERTER IN SOT-23 AND SON PACKAGES |
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