参数资料
型号: MAX5974AEVKIT#
厂商: Maxim Integrated Products
文件页数: 11/27页
文件大小: 0K
描述: EVAL KIT MAX5974A
标准包装: 1
系列: *
MAX5974A/MAX5974B/MAX5974C/MAX5974D
Active-Clamped, Spread-Spectrum,
Current-Mode PWM Controllers
Pin Configuration
TOP VIEW
IN 13
12
11
10
9
8
CSSC
EN 14
DCLMP 15
MAX5974A
MAX5974B
MAX5974C
MAX5974D
7
6
GND
FB
SS 16
+
1
2
3
EP
4
5
COMP
THIN QFN
Pin Description
PIN
1
2
3
4
5
Maxim Integrated
NAME
DT
DITHER/
SYNC
RT
FFB
COMP
FUNCTION
Dead-Time Programming Resistor Connection. Connect resistor R DT from DT to GND to set the
desired dead time between the NDRV and AUXDRV signals. See the Dead Time section to calculate
the resistor value for a particular dead time.
Frequency Dithering Programming or Synchronization Connection. For spread-spectrum frequency
operation, connect a capacitor from DITHER to GND and a resistor from DITHER to RT. To
synchronize the internal oscillator to the externally applied frequency, connect DITHER/SYNC to the
synchronization pulse.
Switching Frequency Programming Resistor Connection. Connect resistor R RT from RT to GND to
set the PWM switching frequency. See the Oscillator/Switching Frequency section to calculate the
resistor value for the desired oscillator frequency.
Frequency Foldback Threshold Programming Input. Connect a resistor from FFB to GND to set the
output average current threshold below which the converter folds back the switching frequency to
1/2 of its original value. Connect to GND to disable frequency foldback.
Transconductance Amplifier Output and PWM Comparator Input. COMP is level shifted down
and connected to the inverting input of the PWM comparator. COMP is actively pulled low by the
controller after shutdown.
11
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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