參數(shù)資料
型號: TPS40054QPWPRQ1
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): 22/28頁
文件大?。?/td> 571K
代理商: TPS40054QPWPRQ1
www.ti.com
ELECTRICAL CHARACTERISTICS
TPS40054-Q1, TPS40055-Q1, TPS40057-Q1
SLAS482A – AUGUST 2005 – REVISED NOVEMBER 2005
T
J = –40°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
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
≤ V
IN≤ 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
VFB = 0 V, fSW≤ 500 kHz
84%
94%
Maximum duty cycle
VFB = 0 V, 500 kHz ≤ fSW≤ 1 MHz(2)
80%
Minimum duty cycle
VFB≥ 0.75 V
0%
VKFF
Feed-forward voltage
3.35
3.48
3.7
V
IKFF
Feed-forward current operating range(2)
20
1200
A
SOFT START
ISS
Soft-start source current
1.2
2.35
3.6
A
VSS
Soft-start clamp voltage
3.7
V
tDSCH
Discharge time
CSS = 220 pF
1.4
2.2
3.4
s
tSS
Soft-start time
CSS = 220 pF, 0 V ≤ VSS≤ 1.6 V
102
150
230
s
BP10
VBP10
Output voltage
IOUT≤ 1 mA
8.9
9.6
10.45
V
ERROR AMPLIFIER
8 V
≤ V
IN≤ 40 V, TJ = 25°C
0.698
0.7
0.704
VFB
Feedback input voltage
8 V
≤ V
IN≤ 40 V, 0°C ≤ TJ≤ 125°C
0.689
0.7
0.717
V
8 V
≤ V
IN≤ 40 V, –40°C ≤ TJ≤ 125°C
0.689
0.7
0.719
GBW
Gain bandwidth(2)
2.8
5
MHz
AVOL
Open loop gain
40
80
dB
IOH
High-level output source current
1.85
4
mA
IOL
Low-level output source current
1.95
4
VOH
High-level output voltage
ISOURCE = 500 A
3.1
3.5
V
VOL
Low-level output voltage
ISINK = 500 A
0.2
0.37
IBIAS
Input bias current
VFB = 0.7 V
100
220
nA
CURRENT LIMIT
ISINK
Current limit sink current
7.5
10
12.2
A
VILIM = 23.7 V, VSW = (VILIM– 0.5 V)
300
Propagation delay to output
ns
VILIM = 23.7 V, VSW = (VILIM– 2 V)
200
tON
Switch leading-edge blanking pulse time(2)
100
ns
(1)
IKFF increases with SYNC frequency, IKFF decreases with maximum duty cycle.
(2)
Ensured by design. Not production tested.
3
相關(guān)PDF資料
PDF描述
TPS40070PWPRG4 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
TPS40071PWPR 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
TPS40070PWPR 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
TPS40074RHLT 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC20
TPS40074RHLRG4 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC20
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS40055 制造商:TI 制造商全稱:Texas Instruments 功能描述:WIDE INPUT SYNCHRONOUS BUCK CONTROLLER
TPS40055-EP 制造商:TI 制造商全稱:Texas Instruments 功能描述:WIDE-INPUT SYNCHRONOUS BUCK CONTROLLER
TPS40055EVM-001 功能描述:電源管理IC開發(fā)工具 Eval Mod Converter RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
TPS40055EVM-002 功能描述:電源管理IC開發(fā)工具 Wide Input Range Converter RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
TPS40055MPWPREP 功能描述:DC/DC 開關(guān)控制器 Mil Enh Wide Input Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)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(fēng)格: 封裝 / 箱體:CPAK