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参数资料
| 型号： | MAX6846KARD7-T |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | Low-Power, Adjustable Battery Monitors with Hysteresis and Integrated µP Reset |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封装： | MO-178, SOT-23, 8 PIN |
| 文件页数： | 10/12页 |
| 文件大小： | 257K |
| 代理商： | MAX6846KARD7-T |
MAX6846–MAX6849
Low-Power, Adjustable Battery Monitors with
Hysteresis and Integrated P Reset
_______________________________________________________________________________________
7
5%
HYST
LTH
DETECT
VTH
DETECT
5%
HYST
HTH
DETECT
VDD
LTHIN
HTHIN
VCC
615mV
LBO
TIMEOUT
PERIOD
RESET
TIMEOUT
PERIOD
LBOL
LBOH
RESET
MAX6848
1.23V
Figure 1b. MAX6848 Functional Diagram
MAX6847
LTH
DETECT
HTH
DETECT
R
S
Q
LBO TIMEOUT
PERIOD
RESET
TIMEOUT
PERIOD
VTH
DETECT
VCC
VDD
LTHIN
HTHIN
LBO
RESET
VCC
615mV
Q
MR
1.23V
Figure 1a. MAX6847 Functional Diagram
Low-Battery Output
The low-battery outputs are available in active-low
(LBO, LBOL, LBOH), open-drain configurations. The
low-battery outputs can be pulled to a voltage indepen-
dent of VCC or VDD, up to 5.5V. This allows the device
to monitor and operate from direct battery voltage while
interfacing to higher voltage microprocessors.
The MAX6846/MAX6847 single-output voltage monitors
provide a single low-battery output, LBO. LBO asserts
when LTHIN drops below VLTH and remains asserted
for at least 150ms after HTHIN rises above VHTH (see
Figure 2). The MAX6848/MAX6849 dual-output voltage
monitors provide two low-battery outputs: LBOH and
LBOL. LBOH asserts when HTHIN drops below VHTH-
and remains asserted for at least 150ms after HTHIN
rises above VHTH+. LBOL asserts when LTHIN drops
below VLTH- and remains asserted for at least 150ms
after LTHIN rises above VLTH+ (see Figure 3). For fast-
rising VDD input, the LBOL timeout period must com-
plete before the LBOH timeout period begins.
Reset Output
The MAX6846–MAX6849 provide an active-low reset
output (RESET). RESET is asserted when the voltage at
VCC falls below the reset threshold level. Reset remains
asserted for the reset timeout period after VCC exceeds
the threshold. If VCC goes below the reset threshold
before the reset timeout period is completed, the inter-
nal timer restarts (see Figure 4). The MAX6846/
MAX6848 have open-drain reset outputs, while the
MAX6847/MAX6849 have push-pull reset outputs.
相关PDF资料 |
PDF描述 |
|---|---|
| MAX6846KASD7-T | Low-Power, Adjustable Battery Monitors with Hysteresis and Integrated µP Reset |
| MAX6846KATD3-T | Low-Power, Adjustable Battery Monitors with Hysteresis and Integrated µP Reset |
| MAX6846KATD7-T | Low-Power, Adjustable Battery Monitors with Hysteresis and Integrated µP Reset |
| MAX6846KAVD3-T | Low-Power, Adjustable Battery Monitors with Hysteresis and Integrated µP Reset |
| MAX6846KAVD7-T | Low-Power, Adjustable Battery Monitors with Hysteresis and Integrated µP Reset |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6846KASD3 | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX6846KASD3+ | 制造商:Maxim Integrated Products 功能描述:VOLT SUPERVISOR MONITOR 0.615V 8PIN SOT-23 - Rail/Tube |
| MAX6846KASD3+T | 功能描述:电池管理 Single Adjustable 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 |
| MAX6846KASD3-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 |
| MAX6846KASD7+T | 功能描述:电池管理 Single Adjustable 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 |
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