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| 型号： | MAX6431PTUS+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 9/20页 |
| 文件大小： | 0K |
| 描述： | IC MONITOR BAT LP SOT143-4 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 功能： | 电池监控器 |
| 电池化学： | 碱性，锂离子，镍镉，镍金属氢化物 |
| 电源电压： | 1 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-253-4，TO-253AA |
| 供应商设备封装： | SOT-143-4 |
| 包装： | 带卷 (TR) |
Low-Power, Single/Dual-Level Battery Monitors
with Hysteresis
V BATT
V DD
LTHIN
HTHIN
R
Q
V DD
+
615 -
EXTERNAL
mV
RESISTOR-
DIVIDER
( ) ARE FOR THE MAX6435
Figure 3. MAX6433/MAX6434/MAX6435 Functional Diagram
LBO TIMEOUT
PERIOD
S
Q
LBO
(LBO)
Hysteresis
Hysteresis increases the comparator’s noise margin by
increasing the upper threshold or decreasing the lower
threshold (see Figure 8). The hysteresis prevents the
output from oscillating (chattering) when BATT or V DD
is near the low-battery threshold. This is especially
important for applications where the load on the battery
creates significant fluctuations in battery voltages.
Fixed Hysteresis (MAX6427–MAX6432)
The MAX6427/MAX6428/MAX6429 total hysteresis is the
difference between the factory-trimmed V LTH and V HTH.
For the MAX6430/MAX6431/MAX6432, the total hysteresis
is the difference between the factory-trimmed V HTH- and
V HTH+ or V LTH- and V LTH+ values, approximately 5%.
Adjustable Hysteresis (MAX6433–MAX6438)
Figure 7 shows the correct connections for the external
resistor-dividers. To adjust the low-battery threshold
and hysteresis connect resistor R1 between V DD and
LTHIN, resistor R2 between LTHIN and HTHIN, and R3
between HTHIN and GND. The hysteresis for the
MAX6433–MAX6438 is determined by an external resis-
tor-divider network (see Resistor-Value Selection sec-
tion of Applications Information). The hysteresis for the
MAX6436/MAX6437/MAX6438 is the differences
between V HTHIN- and V HTHIN+ (~5%) or V LTHIN- and
V LTHIN+ (~5%).
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6432AGUS | 制造商:Maxim Integrated Products 功能描述:LOW-POWER SINGLE/DUAL-LEVEL BATTER - Rail/Tube |
| MAX6432AGUS+ | 制造商:Maxim Integrated Products 功能描述:VOLT SUPERVISOR MONITOR 4PIN SOT-143 - Rail/Tube |
| MAX6432AGUS+T | 功能描述:电池管理 Dual 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 |
| MAX6432AGUS-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 |
| MAX6432AHUS | 制造商:Maxim Integrated Products 功能描述:LOW-POWER SINGLE/DUAL-LEVEL BATTER - Rail/Tube |
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