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參數(shù)資料
| 型號： | TPS40055MPWPREPG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | PLASTIC, HTSSOP-16 |
| 文件頁數(shù)： | 23/35頁 |
| 文件大小： | 2348K |
| 代理商： | TPS40055MPWPREPG4 |
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www.ti.com
SGLS310B – JULY 2005 – REVISED OCTOBER 2010
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted)
(1)
VALUE / UNIT
VIN
45 V
VFB, SS, SYNC
–0.3 V to 6 V
VIN
Input voltage range
SW
–0.3 V to 45 V
SW, transient < 50 ns
–2.5 V
KFF, with IIN(max) = –5 mA
–0.3 V to 11 V
VOUT
Output voltage range
COMP, RT, SS
–0.3 V to 6 V
IIN
Input current
KFF
5 mA
IOUT
Output current
RT
200 A
TJ
Operating junction temperature range
–55°C to 140°C
Tstg
Storage temperature(2)
–55°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
260°C
TJC
Thermal resistance junction-to-case
26.6°C/W
TJA
Thermal resistance junction-to-ambient (3) (4)
36.5°C/W
TJP
Thermal resistance junction-to-bottom of thermal pad (3)
2.1°C/W
fJT
Junction-to-top thermal parameter (3) (4)
0.848°C/W
(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.
(2)
Long-term high-temperature storage and/or extended use at maximum recommended operating conditions may result in reduced overall
device life. See http://www.ti.com/ep_quality for additional information on enhanced plastic packaging.
(3)
See technical brief SLMA002 - PowerPAD Thermally Enhanced Package(http://www-s.ti.com/sc/techlit/slma002).
(4)
Tested in accordance with the thermal metric definitions of EIA/JESD51-5.
RECOMMENDED OPERATING CONDITIONS
MIN
NOM
MAX
UNIT
VI
Input voltage
8
40
V
TA
Operating free-air temperature
–55
125
°C
ELECTRICAL CHARACTERISTICS
TA = –55°C to 125°C, VIN = 24 Vdc, RT = 90.9 k, IKFF = 150 A, fSW = 500 kHz, all parameters at zero power dissipation
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
INPUT SUPPLY
VIN
Input voltage range, VIN
8
40
V
OPERATING CURRENT
IDD
Quiescent current
Output drivers not switching, VFB
≥
1.5
3.3
mA
0.75 V
BP5
VBP5
Output voltage
IOUT ≤ 1 mA
4.7
5
5.3
V
OSCILLATOR/RAMP GENERATOR(1)
fOSC
Accuracy
8 V
≤ VIN ≤ 40 V
465
520
585
kHz
VRAMP
PWM ramp voltage(2)
VPEAK – VVAL
2
V
VIH
High-level input voltage, SYNC
2
5
V
VIL
Low-level input voltage, SYNC
0.8
V
ISYNC
Input current, SYNC
5
11
A
Pulse width, SYNC
50
ns
VRT
RT voltage
2.37
2.5
2.59
V
(1)
IKFF increases with SYNC frequency, IKFF decreases with maximum duty cycle.
(2)
Ensured by design. Not production tested.
Copyright 2005–2010, Texas Instruments Incorporated
3
Product Folder Link(s): TPS40055-EP
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| TPS40055PWP | 功能描述:DC/DC 開關控制器 Wide Input Sync Buck Cntrlr source/sink RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| TPS40055PWPG4 | 功能描述:DC/DC 開關控制器 Wide Input Sync Buck Cntrlr source/sink RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| TPS40055PWPR | 功能描述:DC/DC 開關控制器 Wide Input Sync Buck Cntrlr source/sink RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| TPS40055PWPRG4 | 功能描述:DC/DC 開關控制器 Wide Input Sync Buck Cntrlr source/sink RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
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