參數(shù)資料
型號： MAX16046
廠商： Maxim Integrated Products, Inc.
英文描述： 12-Channel/8-Channel EEPROM-Programmable System Managers with Nonvolatile Fault Registers
中文描述： 12/8通道EEPROM可編程系統(tǒng)管理器，提供非易失故障寄存器
文件頁數(shù)： 57/68頁
文件大?。?/td> 570K
代理商： MAX16046
M
12-Channel/8-Channel EEPROM-Programmable
System Managers with Nonvolatile Fault Registers
______________________________________________________________________________________
57
Filtering the DAC Outputs
Some applications require filtering of the DAC outputs.
This is especially necessary in applications that require
a large distance between the power supplies to be
margined and the MAX16046/MAX16048, or those that
require immunity to noise. A simple RC filter may be
inserted (see Figure 16).
The calculations change slightly for this configuration.
For DC margining calculations, R
3
= R
3A
+ R
3B
. To cal-
culate the lowpass cutoff frequency, use the following
formula:
Place resistor R
3A
and the capacitor, C, as close as
possible to the feedback node.
Trim Input Method
To connect the MAX16046/MAX16048 to a power sup-
ply using the trim input method, see Figure 17.
Calculate the output voltage, V
OUT
, as follows:
where V
REF
is the reference voltage of the power sup-
ply; R
1
, R
2
, R
3
, and R
4
are resistors internal to the
power supply; R
5
is an optional series resistor connect-
ing the trim input to the DACOUT_ output; and
V
DACOUT_
is the output voltage of the DACOUT_ output.
Calculate the ratio of R
1
and R
2
using the following for-
mula:
Resistors R
3
and R
4
and the reference voltage V
REF
may be derived from the formulas given in the DC-DC
converter data sheet where trim input functionality is
discussed. DC-DC module data sheets usually include
trim-up and trim-down formulas in the following form:
where
Δ
is the fraction of the total correction.
Another form of trim-up and trim-down formulas may
appear as follows:
TRIM DOWN:R
k
R k
100
%
R k
(
R k
TRIM UP:R
k
V
R k
V
REF
(
100
(
%
%
R k
100
R k
%
Δ
R k
%
ADJ_DOWN
ADJ_UP
OUT_NOM
Ω
Ω
Δ
Ω
Ω
Ω
Ω
Δ
Δ
Ω
Ω
Ω Δ
(
)
=
(
)
×
(
)
+
(
)
)
(
)
=
(
)
×
+
)
(
)
(
)
×
+
(
)
+
(
TRIM DOWN:R
k
1
R k
R k
TRIM UP:R
k
V
V
1
1
R k
R k
ADJ_DOWN
ADJ_UP
OUT_NOM
REF
Ω
Δ
Δ
Ω
Ω
Ω
Δ
Δ
Ω
Ω
(
)
=
(
)
(
)
(
)
=
(
)
(
)
1
R
R
V
V
1
2
OUT_NOM
REF
+
=
V
1
R
R
R V
(R
R )V
R
R
R
OUT
1
2
4
REF
3
4
5
=
+
+
+
+
+
f
1
2 R
C
3B
=
MAX16046
MAX16048
FB
V
REF
V
DACOUT_
R
2
R
3
R
1
OUT
DC-DC OR LDO
Figure 15. Connections for Margining Using Feedback Method
MAX16046
MAX16048
FB
C
V
REF
V
DACOUT_
R
2
R
3A
R
3B
R
1
OUT
DC-DC OR LDO
Figure 16. DACOUT Filter
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參數(shù)描述
MAX16046ACB+ 功能描述:監(jiān)控電路 12Ch EEPROM Prob System Manager RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MAX16046ACB+T 功能描述:監(jiān)控電路 12Ch EEPROM Prob System Manager RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MAX16046ATN+ 功能描述:監(jiān)控電路 12Ch EEPROM Prob System Manager RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MAX16046ATN+T 功能描述:監(jiān)控電路 12Ch EEPROM Prob System Manager RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
MAX16046ECB+ 功能描述:監(jiān)控電路 12Ch EEPROM Prob System Manager RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel
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