参数资料
型号: MAX5975AETE+
厂商: Maxim Integrated Products
文件页数: 9/20页
文件大小: 0K
描述: IC REG CTRLR FLYBK ISO CM 16TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
PWM 型: 电流模式
输出数: 1
频率 - 最大: 600kHz
占空比: 84%
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-WFQFN 裸露焊盘
包装: 管件
Current-Mode PWM Controllers with Frequency
Dithering for EMI-Sensitive Power Supplies
Pin Configuration
TOP VIEW
IN 13
EN 14
12
11
10
9
8
7
CSSC
GND
DCLMP 15
MAX5975A
MAX5975B
6
FB
SS 16
+
1
2
3
EP
4
5
COMP
TQFN
Pin Description
PIN
1, 12
2
3
4
5
NAME
N.C.
DITHER/
SYNC
RT
FFB
COMP
FUNCTION
No Connection. Not internally connected.
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.
9
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相关代理商/技术参数
参数描述
MAX5975AETE+ 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
MAX5975AETE+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
MAX5975BETE+ 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
MAX5975BETE+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
MAX5975CETE+ 制造商:Maxim Integrated Products 功能描述:CURRENT-MODE PWM CONTROLLERS WITH FREQUENCY DITHERING FOR EM - Rail/Tube