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| 型号： | MAX6431PTUS+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/20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
VBATT
LBOL
HYSTERESIS SWITCH
LBO
TIMEOUT
PERIOD
(LBOL)
LBOH
(LBOH)
VBATT
615
mV
+
-
HYSTERESIS SWITCH
( ) ARE FOR THE MAX6432
Figure 2. MAX6430/MAX6431/MAX6432 Functional Diagram
device to monitor and operate from direct battery voltage
while interfacing to higher voltage microprocessors.
The MAX6427/MAX6428/MAX6429/MAX6433/MAX6434/
MAX6435 single-output voltage monitors provide a sin-
gle low-battery output, LBO/ LBO . The MAX6427/
MAX6428/MAX6429 fixed-threshold parts assert
LBO/ LBO when BATT drops below V LTH . The
MAX6433/MAX6434/MAX6435 adjustable-threshold
parts assert LBO/ LBO when the LTHIN input drops
below the V LTHIN threshold (615mV) (see Figure 5).
The MAX6430/MAX6431/MAX6432/MAX6436/MAX6437/
MAX6438 dual-output voltage monitors provide two low-
battery outputs, LBOH/ LBOH and LBOL/ LBOL . The
MAX6430/MAX6431/MAX6432 fixed-threshold parts
assert LBOH/ LBOH when BATT drops below V HTH- ,
and assert LBOL/ LBOL when BATT drops below V LTH- .
The MAX6436/MAX6437/MAX6438 adjustable-thresh-
old parts assert LBOH/ LBOH when HTHIN drops below
V HTHIN- , and assert LBOL/ LBOL when LTHIN drops
below V LTHIN- (see Figure 6).
Threshold Monitoring
The MAX6433–MAX6438 HTHIN and LTHIN inputs are
high-impedance inputs to comparators. An external resis-
tor-divider network is required between the monitored
voltage, HTHIN, LTHIN, and GND to select the desired
thresholds (see Resistor-Value Selection ). The
MAX6433/MAX6434/MAX6435 single-output voltage
monitors assert LBO/ LBO when LTHIN drops below the
internal LTHIN reference (615mV). LBO/ LBO is deassert-
ed when HTHIN rises above the internal HTHIN reference
level (615mV) for at least 140ms (see Figure 6).
The MAX6436/MAX6437/MAX6438 dual-output voltage
monitors assert LBOL/ LBOL when LTHIN drops below
the LTHIN- threshold and deassert LBOL/ LBOL when
LTHIN rises above the LTHIN+ threshold for at least
140ms. LBOH/ LBOH is asserted when HTHIN drops
below the HTHIN- threshold and is deasserted when
HTHIN rises above the HTHIN+ threshold for at least
140ms (see Figure 7).
8
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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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