參數(shù)資料
型號： TPS43000PWG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO16
封裝： GREEN, TSSOP-16
文件頁數(shù)： 14/31頁
文件大?。?/td> 615K
代理商： TPS43000PWG4
TPS43000
SLUS489 OCTOBER 2001
21
www.ti.com
APPLICATION INFORMATION
flyback converter
A flyback converter (750 kHz) using the TPS43000 is shown in Figure 7. It uses a standard two-winding coupled
inductor with a 1:1 turns ratio. The advantage of this topology is that the output voltage can be greater or less
than the input voltage. For example, this is ideal for generating 3.3 V from a lithium-ion cell.
UDG01039
C8
120
F
C6
0.47
F
VOUT
VIN
C4
0.47
F
C5
0.47
F
R3
6.81 k
R5 1 k
VIN
R1
169 k
R2
24.9 k
R4
49.9 k
R6 1 k
L1A
3.3
H
C7
100
F
L1B
1
3
2
4
5
6
7
8
SYNC/SD
CCS
RT
CCM
BUCK
COMP
FB
TPS43000
9
10
11
12
13
14
15
16
VIN
VOUT
NDRV
GND
PDRV
VP
SWP
SWN
D1
ZHCS1000
(OPTIONAL)
Q1
Si9804DY
Q2
Si9803DY
PFM
RBIAS
53.6 k
C3
1200 pF
C1
3900 pF
C2
82 pF
Figure 7. 3.3-V Output Flyback Topology
NOTE: Resistor-capacitor snubbers can be placed across the primary and secondary windings to
reduce ringing due to leakage inductance. These are optional, and may not be required in the
application.
For a flyback converter, the average output current is related to the peak inductor current by:
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相關代理商/技術參數(shù)
參數(shù)描述
TPS43000PWR 功能描述:DC/DC 開關控制器 Multi-Topology High Freq DC/DC 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
TPS43000PWRG4 功能描述:DC/DC 開關控制器 Multi-Topology High Freq DC/DC 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
TPS43060 制造商:TI 制造商全稱:Texas Instruments 功能描述:Low Quiescent Current Synchronous Boost DC-DC Controller with Wide VIN Range
TPS43060EVM-199 功能描述:電源管理IC開發(fā)工具 TPS43060 EVAL MOD 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
TPS43060RTER 功能描述:DC/DC 開關控制器 Sync Boost Cntlr Wide Input Vtg 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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