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參數資料
| 型號： | MAX6440UTKQTD3-T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | Low-Voltage, Single and Dual Supply, Quad SPST, High Performance Analog Switches; Temperature Range: -40°C to 85°C; Package: 16-QFN |
| 中文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
| 封裝： | SOT-23, 6 PIN |
| 文件頁數： | 11/14頁 |
| 文件大?。?/td> | 235K |
| 代理商： | MAX6440UTKQTD3-T |
DC-to-DC Converter Application
The MAX6441/MAX6442 triple-output battery monitors
can be used in conjunction with a DC-to-DC converter
to power microprocessor systems using a single Li+
cell or two to three alkaline/NiCd/NiMH cells. The
LBOH
output indicates that the battery voltage is weak, and is
used to warn the microprocessor of potential problems.
Armed with this information, the microprocessor can
reduce system power consumption. The
LBOL
output
indicates the battery is empty, and system power
should be disabled. By connecting
LBOL
to the
SHDN
pin of the DC-to-DC converter, power to the microproces-
sor is removed. Microprocessor power does not return
until the battery has recharged to a voltage greater than
V
LTH+
(see Figure 7).
M
Low-Power, Single-/Dual-Level Battery Monitors
with Hysteresis and Integrated μP Reset
______________________________________________________________________________________
11
UPPER THRESHOLD (HTH)
3.4V
AH
BH
CH
DH
EH
FH
VOLTAGES
3.3V
AG
BG
CG
DG
EG
FG
3.5V
AI
BI
CI
DI
EI
FI
3.6V
AJ
BJ
CJ
DJ
EJ
FJ
2.6V
2.7V
2.8V
2.9V
3.0V
3.1V
LOWER
THRESHOLD
(LTH)
Table 1. Factory-Trimmed Lower and Upper Threshold Combinations for Single-Cell Li+
or Three-Cell Alkaline/NiCd/NiMH Applications
UPPER THRESHOLD (HTH)
2.4V
KR
LR
MR
NR
OR
PR
VOLTAGES
2.3V
KQ
LQ
MQ
NQ
OQ
PQ
2.5V
KS
LS
MS
NS
OS
PS
2.6V
KT
LT
MT
NT
OT
PT
1.6V
1.7V
1.8V
1.9V
2.0V
2.1V
LOWER
THRESHOLD
(LTH)
Table 2. Factory-Trimmed Lower and Upper Threshold Combinations for Two-Cell
Alkaline/NiCd/NiMH Applications
PART NO.
SUFFIX
( _ )
V
CC
NOMINAL
RESET
THRESHOLD (V)
T
S
R
Z
Y
W
V
3.075
2.925
2.625
2.313
2.188
1.665
1.575
Table 3. Factory-Trimmed V
CC
Reset
Threshold Levels
ACTIVE TIMEOUT PERIOD (ms)
MIN
150
1200
TIMEOUT
PERIOD SUFFIX
MAX
300
2400
D3
D7
Table 4. V
CC
Reset Timeout Period Suffix
Guide
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| MAX6440UTKRTD3-T | Low-Voltage, Single and Dual Supply, Triple SPDT Analog Switch; Temperature Range: -40°C to 85°C; Package: 20-QFN |
| MAX6440UTKRTD7-T | Low-Voltage, Single and Dual Supply, Quad SPDT, Analog Switches; Temperature Range: -40°C to 85°C; Package: 20-SSOP |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX6440UTKQTD7 | 制造商:Maxim Integrated Products 功能描述:LOW-POWERSINGLE/DUAL-LEVEL BATTERY - Rail/Tube |
| MAX6440UTKQTD7+ | 制造商:Maxim Integrated Products 功能描述:VOLT SUPERVISOR MONITOR 2.3V 6PIN SOT-23 - Rail/Tube |
| MAX6440UTKQTD7+T | 功能描述:電池管理 Single Battery Monitor RoHS:否 制造商:Texas Instruments 電池類型: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 |
| MAX6440UTKQTD7-T | 功能描述:電池管理 RoHS:否 制造商:Texas Instruments 電池類型: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 |
| MAX6440UTKQVD3 | 制造商:Maxim Integrated Products 功能描述:LOW-POWERSINGLE/DUAL-LEVEL BATTERY - Rail/Tube |
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