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参数资料
| 型号： | MAX6442KAMRVD3-T |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | Low-Power, Single-/Dual-Level Battery Monitors with Hysteresis and Integrated µP Reset |
| 中文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封装： | SOT-23, 8 PIN |
| 文件页数： | 3/14页 |
| 文件大小： | 235K |
| 代理商： | MAX6442KAMRVD3-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
VLTH+ (see Figure 7).
MAX6439–MAX6442
Low-Power, Single-/Dual-Level Battery Monitors
with Hysteresis and Integrated P Reset
______________________________________________________________________________________
11
UPPER THRESHOLD (HTH)
VOLTAGES
3.3V
3.4V
3.5V
3.6V
2.6V
AG
AH
AI
AJ
2.7V
BG
BH
BI
BJ
2.8V
CG
CH
CI
CJ
2.9V
DG
DH
DI
DJ
3.0V
EG
EH
EI
EJ
LOWER
THRESHOLD
(LTH)
3.1V
FG
FH
FI
FJ
Table 1. Factory-Trimmed Lower and Upper Threshold Combinations for Single-Cell Li+
or Three-Cell Alkaline/NiCd/NiMH Applications
UPPER THRESHOLD (HTH)
VOLTAGES
2.3V
2.4V
2.5V
2.6V
1.6V
KQ
KR
KS
KT
1.7V
LQ
LR
LS
LT
1.8V
MQ
MR
MS
MT
1.9V
NQ
NR
NS
NT
2.0V
OQ
OR
OS
OT
LOWER
THRESHOLD
(LTH)
2.1V
PQ
PR
PS
PT
Table 2. Factory-Trimmed Lower and Upper Threshold Combinations for Two-Cell
Alkaline/NiCd/NiMH Applications
PART NO.
SUFFIX
( _ )
VCC NOMINAL
RESET
THRESHOLD (V)
T
3.075
S
2.925
R
2.625
Z
2.313
Y
2.188
W
1.665
V
1.575
Table 3. Factory-Trimmed VCC Reset
Threshold Levels
ACTIVE TIMEOUT PERIOD (ms)
TIMEOUT
PERIOD SUFFIX
MIN
MAX
D3
150
300
D7
1200
2400
Table 4. VCC Reset Timeout Period Suffix
Guide
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6442KAMRVD7 | 制造商:Maxim Integrated Products 功能描述:LOW-POWERSINGLE/DUAL-LEVEL BATTERY - Rail/Tube |
| MAX6442KAMRVD7+ | 制造商:Maxim Integrated Products 功能描述:VOLT SUPERVISOR MONITOR 1.8V/1.89V 8PIN SOT-23 - Rail/Tube |
| MAX6442KAMRVD7+T | 功能描述:电池管理 Single Battery Monitor RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX6442KAMRVD7-T | 功能描述:电池管理 RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX6442KAMRWD3 | 制造商:Maxim Integrated Products 功能描述:LOW-POWERSINGLE/DUAL-LEVEL BATTERY - Rail/Tube |
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