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參數(shù)資料
| 型號(hào)： | MAX6442UTF |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | GT 12C 12#12 SKT RECP |
| 中文描述： | 低功耗，電池監(jiān)視器Single-/Dual-Level滯和集成？P復(fù)位 |
| 文件頁(yè)數(shù)： | 11/14頁(yè) |
| 文件大?。?/td> | 235K |
| 代理商： | MAX6442UTF |
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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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6443US16L | 制造商:Maxim Integrated Products 功能描述:+P RESET CIRCUITS WITH LONG MANUAL - Cut Tape Product |
| MAX6443US16L+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 1.58V 7UA 4PIN SOT-143 - Rail/Tube |
| MAX6443US16L+T | 功能描述:監(jiān)控電路 Single uPower Reset Circuit RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)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 |
| MAX6443US16L-T | 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)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 |
| MAX6443US17L | 制造商:Maxim Integrated Products 功能描述:+P RESET CIRCUITS WITH LONG MANUAL - Rail/Tube |
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