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参数资料
| 型号： | MAX8686EVKIT+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/23页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR MAX8686 |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 0.7 V ~ 5.5 V |
| 电流 - 输出： | 25A |
| 输入电压： | 4.5 V ~ 20 V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 300kHz ~ 1MHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | MAX8686 |
Single/Multiphase, Step-Down,
DC-DC Converter Delivers Up to 25A Per Phase
Pin Description (continued)
PIN
33
34
35
36
NAME
FREQ
SS
ILIM
REFIN
FUNCTION
Frequency-Setting Input. Connect a capacitor from FREQ to GFREQ to set the switching frequency.
The triangle ramp runs between 0 and AVL/2. In multiphase applications, connect FREQ of the master
and all slave devices together. FREQ is internally pulled to GFREQ during shutdown.
Soft-Start Input. For master-mode or single-phase operation, connect a capacitor from SS to GND to
set the soft-start time. A 25μA internal current source charges the capacitor. SS is pulled to GND in
shutdown. Connect SS to GND for slave mode operation.
Analog Programmable Current Limit. Connect a resistor from ILIM to GND to set the current limit. A
10μA current source through this resistor sets the current-limit threshold. In multiphase applications,
connect ILIM of the master and all slave devices together.
Voltage Error-Amplifier Reference Input. For master-mode or single-phase operation, connect REFIN to
PHASE/REFO through a resistor-divider to set the output voltage from 0 to 3.3V. To use an external
reference, connect REFIN to the system reference voltage, and use an RC network at REFIN to
implement soft-start if the external reference does not provide this function. Connect REFIN to GND for
slave mode operation.
Phase Selection Input/Reference Voltage Output. For single-phase or master-mode operation, the 3.3V
output with 1% accuracy can be used as a reference voltage. For multiphase operation, connect
37
PHASE/REFO PHASE/REFO of each slave device to the center tap of a resistor-divider from the master AVL to GND.
The resistor values are selected to set phase delay between phases. The PWM cycle starts 60ns after
the rising edge of V FREQ crosses V PHASE .
Compensation and Output of the Voltage-Error Amplifier. Connect a Type II compensation network at
38
39
40
—
—
—
COMP
RS+
RS-
GND_EP
IN_EP
LX_EP
COMP. COMP is internally pulled to GND in shutdown. In multiphase applications, connect COMP of
the master and all slave devices together.
Positive Input of the Output-Voltage Remote Sense. For master-mode or single-phase operation,
connect RS+ to the output-voltage sense point at the load. Connect RS+ to AVL (slave) for slave mode
operation.
Negative Input of the Output-Voltage Remote Sense. For master-mode or single-phase operation,
connect RS- to the remote ground at the load. Connect RS- to AVL (slave) for slave mode operation.
Ground Exposed Paddle. Connect GND_EP to GND.
Input Exposed Paddle. Connect IN_EP to IN.
LX Exposed Paddle. Connect LX_EP to LX.
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8686EVKIT# | 功能描述:电源管理IC开发工具 MAX8686 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 |
| MAX8686EVKIT+ | 功能描述:电源管理IC开发工具 MAX8686 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 |
| MAX8687ETL+ | 制造商:Maxim Integrated Products 功能描述:SINGLE /MULTIPHASE, DC/DC CONVERTER - Rail/Tube |
| MAX8688AHETG+ | 功能描述:电流和电力监控器、调节器 Digital Power-Supply Controller/Monitor RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
| MAX8688AHETG+T | 功能描述:电流和电力监控器、调节器 Digital Power-Supply Controller/Monitor RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
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