參數(shù)資料
型號： MAX8541
廠商： Maxim Integrated Products, Inc.
英文描述： Synchronizable. High-Frequency Current- and Voltage-Mode PWM Controllers for Isolated Supplies
中文描述： 可同步、高頻、電流或電壓模式PWM控制器，用于隔離電源
文件頁數(shù)： 12/16頁
文件大?。?/td> 328K
代理商： MAX8541
M
Pull V
SKTOFF
to V
REF
through a 10k
pullup resistor to
enable the latch-off feature. In this mode, once the
SKTON time has elapsed, the IC is latched off. The cir-
cuit remains off until
EN
is toggled, or the input power is
toggled.
Soft-Start Capacitor Selection
During startup, the capacitor at soft-start is charged
using a 5μA current source. Once the voltage at soft-
start reaches the threshold voltage (2V typ), the IC
switches normally. Use a low-ESR ceramic capacitor
placed as close as possible to the IC at soft-start. The
value is determined as follows:
where t
SS
is the desired soft-start period in ms and C
SS
is in μF.
Applications Information
Refer to the following application notes for the
MAX8540/MAX8541 application circuits and applica-
tions information:
50W Current-Mode Forward
Converter Design with the MAX8540
and
50W Voltage-
Mode Forward Converter Design with the MAX8541.
C
t
SS
SS
=
530
Synchronizable, High-Frequency Current- and
Voltage-Mode PWM Controllers for Isolated Supplies
12
______________________________________________________________________________________
TOP VIEW
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
REF
V
CC
DRV
GND
SKTON
CS
SKTOFF
ILIM
OPTO
MAX8541EEE
QSOP
OV
UV
MAXDTY
FREQ/SYNC
SS
EN
PRAMP
Pin Configurations (continued)
Chip Information
TRANSISTOR COUNT: 2704
PROCESS: BiCMOS
相關PDF資料
PDF描述
MAX8540EEE Synchronizable, High-Frequency Current- and Voltage-Mode PWM Controllers for Isolated Supplies
MAX8541EEE Synchronizable, High-Frequency Current- and Voltage-Mode PWM Controllers for Isolated Supplies
MAX8540-MAX8541 Synchronizable, High-Frequency Current- and Voltage-Mode PWM Controllers for Isolated Supplies
MAX8545 Low-Cost. Wide Input Range. Step-Down Controllers with Foldback Current Limit
MAX8546 Low-Cost. Wide Input Range. Step-Down Controllers with Foldback Current Limit
相關代理商/技術參數(shù)
參數(shù)描述
MAX8541EEE 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX8541EEE+ 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX8541EEE-T 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結構:Buck 輸出電壓:34 V 輸出電流: 開關頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
MAX8543EEE 功能描述:DC/DC 開關控制器 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
MAX8543EEE+ 功能描述:電流型 PWM 控制器 Step-Down Controller RoHS:否 制造商:Texas Instruments 開關頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14
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