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參數(shù)資料
| 型號(hào)： | MAX6780LTAT |
| 廠(chǎng)商： | Maxim Integrated Products, Inc. |
| 英文描述： | Low-Power, 1%-Accurate Battery Monitors in uDFN and SC70 Packages |
| 中文描述： | 低功耗，1％，精確的電池在UDFN微型監(jiān)視器及SC70封裝 |
| 文件頁(yè)數(shù)： | 8/12頁(yè) |
| 文件大?。?/td> | 221K |
| 代理商： | MAX6780LTAT |
M
Low-Power, 1%-Accurate Battery
Monitors in μDFN and SC70 Packages
8
_______________________________________________________________________________________
Selector Guide
PART
LBO
OUTPUT
Single
Single
Single
Single
Single
Single
Single
Single
Dual
Dual
Dual
OUTPUT TYPE
Push-Pull
Push-Pull
Open-Drain
Open-Drain
Push-Pull
Push-Pull
Open-Drain
Open-Drain
Push-Pull
Open-Drain
Mixed
HYSTERESIS
Fixed
Fixed
Fixed
Fixed
Adjustable
Adjustable
Adjustable
Adjustable
Fixed
Fixed
Fixed
PIN-PACKAGE
5 SC70-5
6 μDFN-6
5 SC70-5
6 μDFN-6
5 SC70-5
6 μDFN-6
5 SC70-5
6 μDFN-6
6 μDFN-6
6 μDFN-6
6 μDFN-6
MAX6775XK_+T
MAX6775LT_+T
MAX6776XK_+T
MAX6776LT_+T
MAX6777XK+T
MAX6777LT+T
MAX6778XK+T
MAX6778LT+T
MAX6779LT_+T
MAX6780LT_+T
MAX6781LT_+T
Calculating an External
Hysteresis Resistive Divider
Setting the hysteresis externally requires calculating
three resistor values, as indicated in Figure 3. First cal-
culate R
H
using:
and R
L0
using:
(as in the above example). Where R
L0
equals R
L
+
R
HYST
, determine the total resistor-divider current,
I
TOTAL
, at the trip voltage using:
Then, determine R
HYST
using:
where V
HYST
is the required hysteresis voltage.
Finally, determine R
L
using:
R
L
= R
L0
- R
HYST
Monitoring a Battery Voltage Higher
Than the Allowable V
BATT
For monitoring higher voltages, supply power to BATT
that is within the specified supply range, and power the
input resistive divider from the high voltage to be moni-
tored. Do not exceed the
Absolute Maximum Ratings
.
Adding External Capacitance to
Reduce Noise and Transients
If monitoring voltages in a noisy environment, add a
bypass capacitor of 0.1μF from BATT to GND as close
as possible to the device. For systems with large tran-
sients, additional capacitance may be required. A small
capacitor (<1nF) from LBI_ to GND may provide addi-
tional noise immunity.
R
V
I
TOTAL
HYST
HYST
=
I
V
R
R
TOTAL
BATT
+
H
L
=
0
R
V
x R
V
BATT
V
L
LBIR
LBIR
H
0
=
R
e
x V
I
L
H
A
BATT
=
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6780LTB+ | 制造商:Maxim Integrated Products 功能描述:VOLT SUPERVISOR MONITOR 1.222V 6PIN UDFN - Rail/Tube |
| MAX6780LTB+T | 功能描述:電池管理 Dual 1%-Accurate Battery Monitor RoHS:否 制造商:Texas Instruments 電池類(lèi)型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MAX6780LTC+T | 功能描述:電池管理 Dual 1%-Accurate Battery Monitor RoHS:否 制造商:Texas Instruments 電池類(lèi)型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MAX6781LTA+ | 制造商:Maxim Integrated Products 功能描述:VOLT SUPERVISOR MONITOR 1.222V 6PIN UDFN - Rail/Tube |
| MAX6781LTA+T | 功能描述:電池管理 Dual 1%-Accurate Battery Monitor RoHS:否 制造商:Texas Instruments 電池類(lèi)型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
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