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参数资料
| 型号： | TLE6389G50-1 |
| 厂商： | INFINEON TECHNOLOGIES AG |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 420 kHz SWITCHING FREQ-MAX, PDSO14 |
| 封装： | PLASTIC, DSO-14 |
| 文件页数： | 20/37页 |
| 文件大小： | 368K |
| 代理商： | TLE6389G50-1 |
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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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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 开关控制器 Step-Down DC/DC Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体: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 - 专用 Combined Power Supply and Firing IC RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
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