参数资料
型号: MAX8540EEE+
厂商: Maxim Integrated Products
文件页数: 12/16页
文件大小: 0K
描述: IC REG CTRLR PWM CM 16-QSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 100
PWM 型: 电流模式
输出数: 1
频率 - 最大: 1MHz
占空比: 82%
电源电压: 7.6 V ~ 18 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 16-SSOP(0.154",3.90mm 宽)
包装: 管件
Synchronizable, High-Frequency Current- and
Voltage-Mode PWM Controllers for Isolated Supplies
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.
Pin Configurations (continued)
TOP VIEW
Soft-Start Capacitor Selection
During startup, the capacitor at soft-start is charged
REF 1
OV 2
16 V CC
15 DRV
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:
UV 3
FREQ/SYNC 4
SS 5
MAXDTY 6
MAX8541EEE
14 GND
13 SKTON
12 CS
11 SKTOFF
C SS =
t SS
530
EN 7
PRAMP 8
10 ILIM
9 OPTO
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.
QSOP
Chip Information
TRANSISTOR COUNT: 2704
PROCESS: BiCMOS
12
______________________________________________________________________________________
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相关代理商/技术参数
参数描述
MAX8540EEE+ 功能描述:电流型 PWM 控制器 Synchronizable PWM Controller RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14
MAX8540EEE+T 功能描述:电流型 PWM 控制器 PWM Controller Curr-Mode RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14
MAX8540EEE-T 功能描述:电流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14
MAX8541EEE 功能描述:电压模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel
MAX8541EEE+ 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: