參數(shù)資料
型號(hào)： TPS65166RHAR
廠商： TEXAS INSTRUMENTS INC
元件分類： 模擬信號(hào)調(diào)理
英文描述： SPECIALTY ANALOG CIRCUIT, PQCC40
封裝： 6 X 6 MM, GREEN, PLASTIC, M0-220VJJD-2, QFN-40
文件頁(yè)數(shù)： 11/45頁(yè)
文件大?。?/td> 3690K
代理商： TPS65166RHAR
SW1
Overvoltage
Comperator
Comparator
Error
Amplifier
N-MOS
SW2
D
S
CurrentSampling
&
SlopeCompensation
CurrentLimit
&
Softstart
ControlLogic
PGND1
PGND2
OS
1.24V
750kHz
Oscillator
COMP
FB1
1.24V
Overvoltage
Comparator
Shortcircuit
Comparator
1.24V + 3%
100 mV
SS
AVIN
GD
ISS
D
S
450W
RHVS
HVS
VL
6V
10kW
IGD
Switch
Soft-Start (Boost Converter)
2
inductor
SS
inductor
I
0.43
mA
0.43
t
mA
=
C
=
t
C
V
I
V
D
D
D
(5)
Compensation (Boost Converter)
1
2
4
5
Z
f
R
C
p
=
(6)
www.ti.com.......................................................................................................................................................................................... SLVS976 – SEPTEMBER 2009
Figure 24. Boost Converter Block Diagram
To avoid high inrush current during start-up an internal soft-start is implemented. The soft-start time is set by an
external capacitor connected to the SS pin. The capacitor is charged with a constant current of typically 10
A,
which increases the voltage at the SS pin. The internal switch current limit is proportional to the SS pin voltage
and rises with rising voltage until VS is in regulation or the maximum current limit is reached. The larger the
soft-start capacitor value the longer the soft-start time. For a 100nF capacitor at the SS pin, the current limit is
reached after 0.9ms. An estimation of the current limit slope
ΔIinductor and CSS capacitor can be made by the
following formulas.
The regulator loop can be compensated by adjusting the external components connected to the COMP pin. The
typical value of R4 = 39k
and C5 = 1nF is appropriate for most applications. The below formula calculates at
what frequency the resistor R4 increases the high frequency gain.
Copyright 2009, Texas Instruments Incorporated
19
Product Folder Link(s): TPS65166
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS65167ARHAR 功能描述:其他電源管理 Compact LCD Bias Sply RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel
TPS65167ARHARG4 功能描述:其他電源管理 Compact LCD Bias Sply RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel
TPS65167EVM-277 功能描述:電源管理IC開發(fā)工具 TPS65167 Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
TPS65167RHAR 功能描述:其他電源管理 Compact LCD Bias Supply RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel
TPS65167RHARG4 功能描述:LCD 驅(qū)動(dòng)器 12V/3.5A(I/O) 4-CH Multi-Converter RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時(shí)鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube
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