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参数资料
| 型号： | MAX8688ALETG+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 33/38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： | 2,500 |
| 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： | 带卷 (TR) |
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Digital Power-Supply Controller/Monitor
with PMBus Interface
MFR_VOUT_PEAK (D4h)
The MFR_VOUT_PEAK command returns the maximum
actual measured (not commanded) output voltage in
volts across RS+ and RS-. If the filter mode is enabled,
instead of returning the instantaneous value, the filtered
output voltage is returned. To reset this value to 0, write
to this command with a data value of 0. Any other val-
ues written by this command are used as a comparison
for future peak updates.
The 2 data bytes are in DIRECT format. Valid values are
the same as VOUT_COMMAND.
The default MFR_VOUT_PEAK value is 0.
MFR_IOUT_PEAK (D5h)
The MFR_IOUT_PEAK command returns the maximum
measured output current in amperes across ISN+ and
ISN-. To reset this value to 0, write to this command with
a data value of 0. Any other values written by this com-
mand are used as a comparison for future peak updates.
The 2 data bytes are in DIRECT format. Valid values are
the same as IOUT_OC_FAULT_LIMIT.
The default MFR_IOUT_PEAK value is 00h.
Whenever filtering is enabled (MFR_FILTER_MODE[7:0]
not equal to 0), voltage-related readings are computed
as an average over the sample count. Fault and warning
limits are compared against the averaged value to
determine if a fault/warning has occurred. The Sample
Delay bit value (MFR_FILTER_MODE[15:8]) sets the
time between successive voltage readings. Note that
when filtering is disabled (MFR_FILTER_MODE[7:0] =
0), the Sample Delay bit value is ignored.
The default MFR_FILTER_MODE value is 00h (1
Sample Count bit and no delay). When filtering is in
progress, the PMBus command is ignored.
MFR_FAULT_STATUS (D8h)
When a warning or fault condition is detected, the
MAX8688 sets the corresponding bit in the
MFR_FAULT_STATUS register to 1 and notifies the host
using FLT assertion. The STATUS_BYTE is computed
from MFR_FAULT_STATUS[7:0].
Table 10. MFR_FAULT_STATUS Bit
Definition
MFR_TEMPERATURE_PEAK (D6h)
The MFR_TEMPERATURE_PEAK command returns the
maximum actual on-chip measured temperature in
degrees Celsius. To reset this value to its lowest value,
write to this command with a data value of 0FFFFh. Any
other values written by this command are used as a
comparison for future peak updates.
The 2 data bytes are in DIRECT format. Valid values are
the same as OT_FAULT_LIMIT.
The default MFR_TEMPERATURE_PEAK value is 00h.
MFR_FILTER_MODE (D7h)
The MFR_FILTER_MODE command is used to set V OUT
sample count and sample delays.
Table 9. MFR_FILTER_MODE Bit
Definition
BIT
15
14
13
12
11
10
9
8
7
6
5
4
3
2
FAULT/WARNING BIT NAME
Reserved. Read returns 0.
OT_WARN
OT_FAULT
IOUT_OC_WARN
IOUT_NC_FAULT
VOUT_UV_WARN
VOUT_UV_FAULT
VOUT_OV_WARN
Reserved. Read returns 0.
OFF
VOUT_OV_FAULT
IOUT_OC_FAULT
Reserved. Read returns 0.
TEMPERATURE. Set when either OT_WARN or
OT_FAULT is set.
BITS
BIT
NAME
DESCRIPTION
1
CML
15:8
Sample
Delay
The upper byte defines the time interval
between each sample. The sampling delay is
1.75μs + MFR_FILTER_MODE[15:8] x 250ns.
OTHER. Set when any bit (other than those
0
temperature related bits) in the high byte is set.
This register is cleared to 0 together with the
7:0
The lower byte defines the number of
Sample samples to acquire in each monitoring
Count sequence. The number of samples is
determined by 2^ MFR_FILTER_MODE[7:0].
STATUS_BYTE register by any of the fault/warning clear-
ing methods mentioned earlier in the CLEAR_FAULTS
command.
______________________________________________________________________________________
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相关代理商/技术参数 |
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| 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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