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参数资料
| 型号： | MAX5974AEVKIT# |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 12/27页 |
| 文件大小： | 0K |
| 描述： | EVAL KIT MAX5974A |
| 标准包装： | 1 |
| 系列： | * |
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MAX5974A/MAX5974B/MAX5974C/MAX5974D
Active-Clamped, Spread-Spectrum,
Current-Mode PWM Controllers
Pin Description (continued)
12
PIN
6
7
8
9
10
11
12
13
14
15
16
—
NAME
FB
GND
CSSC
CS
PGND
NDRV
AUXDRV
IN
EN
DCLMP
SS
EP
FUNCTION
Transconductance Amplifier Inverting Input
Signal Ground
Current Sense with Slope Compensation Input. A resistor connected from CSSC to CS programs the
amount of slope compensation. See the Programmable Slope Compensation section.
Current-Sense Input. Current-sense connection for average current sense and cycle-by-cycle
current limit. Peak current-limit trip voltage is 400mV and reverse current-limit trip voltage is -100mV.
Power Ground. PGND is the return path for gate-driver switching currents.
Main Switch Gate-Driver Output
pMOS Active Clamp Switch Gate-Driver Output. AUXDRV can also be used to drive a pulse
transformer for synchronous flyback application.
Converter Supply Input. IN has wide UVLO hysteresis, enabling the design of efficient power
supplies. See the Enable Input section to determine if an external zener diode is required at IN.
Enable Input. The gate drivers are disabled and the device is in a low-power UVLO mode when the
voltage on EN is below V ENF . When the voltage on EN is above V ENR , the device checks for other
enable conditions. See the Enable Input section for more information about interfacing to EN.
Feed-Forward Maximum Duty-Cycle Clamp Programming Input. Connect a resistive divider between
the input supply voltage DCLMP and GND. The voltage at DCLMP sets the maximum duty cycle
(D MAX ) of the converter inversely proportional to the input supply voltage, so that the MOSFET
remains protected during line transients.
Soft-Start Programming Capacitor Connection. Connect a capacitor from SS to GND to program the
soft-start period. This capacitor also determines hiccup mode current-limit restart time. A resistor
from SS to GND can also be used to set the D MAX below 75%.
Exposed Pad. Internally connected to GND. Connect to a large ground plane to maximize thermal
performance. Not intended as an electrical connection point.
Maxim Integrated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5974AEVKIT# | 功能描述:电源管理IC开发工具 MAX5974A Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| MAX5974BETE+ | 功能描述:电流型 PWM 控制器 Current-Mode 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 |
| MAX5974BETE+T | 功能描述:电流型 PWM 控制器 Current-Mode 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 |
| MAX5974CETE+ | 功能描述:电流型 PWM 控制器 Current-Mode 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 |
| MAX5974CETE+T | 功能描述:电流型 PWM 控制器 Current-Mode 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 |
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