參數(shù)資料
型號(hào)： TLE6389G50-1
廠商： INFINEON TECHNOLOGIES AG
元件分類(lèi)： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, 420 kHz SWITCHING FREQ-MAX, PDSO14
封裝： PLASTIC, DSO-14
文件頁(yè)數(shù)： 20/37頁(yè)
文件大小： 368K
代理商： TLE6389G50-1
TLE 6389
Preliminary data sheet Rev. 1.0
27
2003-05-05
Figure 3
Application circuit TLE6389GV
7.3
Output voltage at adjustable version - feedback divider
The output voltage is sensed either by an internal voltage divider connected to the VOUT
pin (TLE6389G50-1 and TLE6389G50, fixed 5V versions) or an external divider from the
Buck output voltage to the FB pin (TLE6389GV, adjustable version).
To determine the resistors of the feedback divider for the desired output voltage VOUT at
the TLE6389GV select RFB2 between 5k and 500k and obtain RFB1 with the following
formula:
VFB is the threshold of the error amplifier with its value of typical 1.25V which shows that
the output voltage can be adjusted in a range from 1.25 to 15V. Keep in mind that the
current consumption will be increased in PFM mode in the range between 1.25 and 7V.
To filter spikes at the FB input connect a small ceramic cap (10nF) in parallel to RFB2.
M1
D1
C
OUT =
100
F
V
OUT
C
BDS=
220 nF
V
IN
L
1 = 47 H
TLE6389GV
GDRV
BDS
VOUT
GND
ENABLE
C
IN1 =
100
F
ON
OFF
CS
R
SENSE=
0.05
M1: Infineon BSO613SPV
Infineon BSP613P
D1: Motorola MBRD360
L1: EPCOS B82479-A1473-M
Coilcraft DO3340P-473
C
IN1: Electrolythic
C
IN2: Ceramic
C
OUT: Low ESR Tantalum
R
SI1=
400k
C
IN2 =
220nF
R
SI2=
100k
RO
SO
RD
C
RD =100nF
SYNC
FB
R
FB1=
330k
R
FB2=
47k
11
13
7
SI
VS
14
12
3
9
10
2
8
4
5
1
SI_GND
6
to e.g. 5V rail
R
SO=
R
RO=
20k
to C
R
FB1
R
FB2
V
OUT
V
FB th
,
---------------- 1
–
è
=
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TLE6389G501NTMA1 制造商:Infineon Technologies AG 功能描述:DC DC Cntrlr Single-OUT Step Down 5V to 60V Input 14-Pin DSO 制造商:Infineon Technologies AG 功能描述:IC REG BUCK BOOST 5V 3A PDSO14
TLE6389G50NTMA1 制造商:Infineon Technologies AG 功能描述:DC DC Cntrlr Single-OUT Step Down 5V to 60V Input 14-Pin DSO 制造商:Infineon Technologies AG 功能描述:IC REG BUCK BOOST 5V 3A PDSO14
TLE6389GV 功能描述:DC/DC 開(kāi)關(guān)控制器 Step-Down DC/DC Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)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
TLE6389GVT 制造商:Infineon Technologies AG 功能描述:DC DC Cntrlr Single-OUT Step Down 5V to 60V Input 14-Pin DSO T/R
TLE6710Q 功能描述:接口 - 專(zhuān)用 Combined Power Supply and Firing IC RoHS:否 制造商:Texas Instruments 產(chǎn)品類(lèi)型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59
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