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參數(shù)資料
| 型號： | TPS23753PW |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.505 A SWITCHING CONTROLLER, 273 kHz SWITCHING FREQ-MAX, PDSO14 |
| 封裝： | GREEN, PLASTIC, TSSOP-14 |
| 文件頁數(shù)： | 23/30頁 |
| 文件大?。?/td> | 823K |
| 代理商： | TPS23753PW |
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www.ti.com
SLVS853C – JUNE 2008 – REVISED JANUARY 2010
RECOMMENDED OPERATING CONDITIONS
Voltage with respect to VSS (unless otherwise noted)
MIN
NOM
MAX
UNIT
Input voltage range, VDD, VDD1, RTN
0
57
V
Input voltage range, VDD, VDD1 to RTN
0
57
V
VI
Input voltage range, VC to RTN
0
18
V
Input voltage range, APD, CTL to RTN
0
VB
V
Input voltage range, CS to RTN
0
2
V
RTN current (TJ ≤ 125°C)
350
mA
VB sourcing current
0
2.5
5
mA
VB capacitance
0.08
0.1
2.2
μF
RBLNK
0
350
k
Synchronization pulse width input (when used)
25
150
ns
TJ
Operating junction temperature range
–40
125
°C
ELECTRICAL CHARACTERISTICS
Unless otherwise noted: CS = APD = CTL = RTN, GATE open, RFRS = 60.4 k, RBLNK = 249 k, CVB = CVC = 0.1 μF,
RDEN = 24.9 k, RCLS open, VVDD-VSS = 48 V, VVDD1-RTN = 48 V, 8.5 V ≤ VVC-RTN ≤ 18 V, –40°C ≤ TJ ≤ 125°C
Controller Section Only
[VSS = RTN and VDD = VDD1] or [VSS = RTN = VDD], all voltages referred to RTN. Typical specifications are at 25°C.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VC
UVLO1
VC rising
8.65
9
9.3
Undervoltage lockout
V
UVLOH
Hysteresis(1)
3.3
3.5
3.7
Operating current
VC = 12 V, CTL = VB
0.40
0.58
0.85
mA
VDD1 = 10.2 V, VC(0) = 0 V
50
85
175
tST
Startup time, CVC = 22 μF
ms
VDD1 = 35 V, VC(0) = 0 V
30
48
85
VDD1 = 10.2 V, VVC = 8.6 V
0.44
1.06
1.80
Startup current source - IVC
mA
VDD1 = 48 V, VVC = 0 V
2.5
4.3
6.0
VB
Voltage
6.5 V
≤ VC ≤ 18 V, 0 ≤ IVB ≤ 5 mA
4.75
5.10
5.25
V
FRS
CTL= VB, Measure GATE
Switching frequency
223
248
273
kHz
RFRS = 60.4 k
DMAX
Duty cycle
CTL= VB, Measure GATE
76
78.5
81
%
VSYNC
Synchronization
Input threshold
2.0
2.2
2.4
V
CTL
VZDC
0% duty cycle threshold
VCTL ↓ until GATE stops
1.3
1.5
1.7
V
Softstart period
Interval from switching start to VCSMAX
400
800
μs
Input resistance
70
100
145
k
BLNK
In addition to t1
Blanking delay
BLNK = RTN
35
52
75
ns
RBLNK = 49.9 k
41
52
63
(1)
The hysteresis tolerance tracks the rising threshold for a given device.
Copyright 2008–2010, Texas Instruments Incorporated
3
Product Folder Link(s): TPS23753
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相關代理商/技術參數(shù) |
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| TPS23753PW | 制造商:Texas Instruments 功能描述:Controller IC |
| TPS23753PWG4 | 功能描述:熱插拔功率分布 PoE Interface & Iso Cnvrtr & Cntrlr RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS23753PWR | 功能描述:熱插拔功率分布 Interface and Iso Cnvrtr and Cntrlr RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
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