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参数资料
| 型号： | MAX5975AETE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/20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： | 无 |
| 升压： | 无 |
| 回扫： | 是 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 是 |
| 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 Description (continued)
10
PIN
6
7
8
9
10
11
13
14
15
16
—
NAME
FB
GND
CSSC
CS
PGND
NDRV
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.
Power Ground. PGND is the return path for gate-driver switching currents.
External Switching nMOS Gate-Driver Output
Converter Supply Input. IN has wide UVLO hysteresis, enabling the design of efficient power
supplies. When the enable input EN is used to program a UVLO level for the power source,
connect a zener diode between IN and PGND to ensure that V IN is always clamped below its
absolute maximum rating of 26V.
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 resistor-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.
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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 |
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