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| 型号： | MAX8688BLETG+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/38页 |
| 文件大小： | 0K |
| 描述： | IC PWR SUPPLY CTRLR/MONTR 24TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 75 |
| 应用： | 电源控制器/监控器 |
| 电源电压： | 3 V ~ 3.6 V |
| 电流 - 电源： | 6.7mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-WFQFN 裸露焊盘 |
| 供应商设备封装： | 24-TQFN-EP（4x4） |
| 包装： | 管件 |
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Digital Power-Supply Controller/Monitor
with PMBus Interface
3.3V
MAX8688
DVDD
AVDD
0.1 μ F
DGND
POWER MONITOR
AGND
RS-
0.1 μ F
A1/SCLE
A2/SDAE
A3/ONOFF
SCL
SDA
RST
SMBus
CONTROLLER
ADC
TEMP SENSOR
INTERNAL REFERENCE
200 ?
200 ?
RS+
RS_C
ISN-
ISN+
ISN_C
REFO
1 μ F
PMBus COMMAND AND
STATUS REGISTERS
DAC
S1
DACOUT
FLT
CLKIO
Figure 1. MAX8688 Functional Diagram
MAXQ ? μ C
ENOUT
Detailed Description
For many applications, it is desirable to control the out-
put voltage of a POL power supply to a much higher
accuracy than the offered standard 1% overtempera-
ture specification. Many designs are required to
access information such as output voltage, output cur-
rent, and temperature of individual power supplies in a
board, for monitoring system health as well as logging
fault information to help in failure analysis. Moreover, it
is desirable to sequence startup and shutdown of multi-
ple power supplies in an application with programma-
ble start, stop delays, and soft-start ramp rates to avoid
MAXQ is a registered trademark of Maxim Integrated Products, Inc.
latchup and stressing of ESD structures. The MAX8688
solves these problems by providing the required func-
tions in a small compact IC that is capable of interfac-
ing with a master controller through an on-board
PMBus interface. Up to 127 MAX8688s can reside on
the same PMBus bus, each controlling its own POL,
under command from the system controller, as shown
in Figure 2. Long traces from POLs located at various
system board locations for voltage sensing and current
sensing are avoided resulting in a cleaner layout for the
system designer. POLs can therefore be placed close
to the load where they provide the best transient
response with short power plane runs.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8688BLETG+ | 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 |
| MAX8688BLETG+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 |
| MAX8688EVKIT+ | 功能描述:电流和电力监控器、调节器 DIGITAL POWER SUPPLY 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 |
| MAX868EPD | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX868EUB | 功能描述:电荷泵 Reg/Adj -2x Invertin Charge Pump RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
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