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参数资料
| 型号： | MAX8688BHETG+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 23/38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
The MAX8688 SMBus interface does not support pack-
et error checking (PEC). It does not support the 35ms
timeout either. Therefore, to reset the MAX8688 SMBus
interface, the host controller has to hold RST low for
t SMB_RST . This resets the SMBus interface. See the RST
Operation section.
PMBus Protocol Support
The MAX8688 supports a subset of the commands
defined in the Power System Management Protocol
Specification Part II - Command Language Revision
1.0. For detailed specifications and the complete list of
PMBus commands, refer to Part II of the PMBus specifi-
cation available at www.PMBus.org . The supported
PMBus commands and the corresponding MAX8688
behavior are described in this document.
All data values are represented in DIRECT format,
unless otherwise stated. Whenever the resolution of the
data is less than the number of bits required, data are
right justified (only the lower bits are significant) and
the higher order bits are zero-padded, unless otherwise
stated. For example, for a 2-byte value where the
MAX8688 only has 12-bit data to return, the MAX8688
returns data in the lower 12 bits and zero-padded the
upper 4 bits. Whenever the PMBus specification refers
to the “PMBus device,” it is referring to MAX8688 oper-
ating in conjuction with a POL device. While the com-
mand may call for turning on or off the PMBus device,
the MAX8688 always remains on to continue communi-
cating with the PMBus master and the MAX8688 trans-
fers the command to the POL device accordingly.
Data Format
Voltage data for commanding or reading the output
voltage or related parameters (such as the overvoltage
threshold) are presented in DIRECT format. DIRECT
format data is a 2-byte, two’s complement binary value.
DIRECT format data may be used with any command
that sends or reads a parametric value. The DIRECT
format uses an equation and defined coefficients to cal-
culate the desired values. The coefficients used by the
MAX8688 can be found in Table 4.
Table 4. MAX8688 PMBus Command Summary
COMMAND
CODE
COMMAND NAME
TRANSACTION
TYPE
NO. OF
BYTES
m
b
R
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
01h
03h
11h
12h
21h
25h
26h
27h
29h
38h
40h
42h
43h
44h
46h
4Ah
4Fh
OPERATION
CLEAR_FAULTS
STORE_DEFAULT_ALL
RESTORE_DEFAULT_ALL
VOUT_COMMAND
VOUT_MARGIN_HIGH
VOUT_MARGIN_LOW
VOUT_TRANSITION_RATE
VOUT_SCALE_LOOP
IOUT_SCALE
VOUT_OV_FAULT_LIMIT
VOUT_OV_WARN_LIMIT
VOUT_UV_WARN_LIMIT
VOUT_UV_FAULT_LIMIT
IOUT_OC_FAULT_LIMIT
IOUT_OC_WARN_LIMIT
OT_FAULT_LIMIT
R/W Byte
Send Byte
Send Byte
Send Byte
R/W Word
R/W Word
R/W Word
R/W Word
R/W Word
R/W Word
R/W Word
R/W Word
R/W Word
R/W Word
R/W Word
R/W Word
R/W Word
1
0
0
0
2
2
2
2
2
2
2
2
2
2
2
2
2
—
—
—
—
19995
19995
19995
256
128
1
19995
19995
19995
19995
23109
23109
-7612
—
—
—
—
0
0
0
0
0
0
0
0
0
0
0
0
335
—
—
—
—
-1
-1
-1
0
0
1
-1
-1
-1
-1
-2
-2
-3
______________________________________________________________________________________
23
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8688BHETG+ | 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 |
| MAX8688BHETG+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 |
| 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 |
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