参数资料
型号: LTC1326IS8#TR
厂商: Linear Technology
文件页数: 1/16页
文件大小: 0K
描述: IC MONITOR TRPL SPPLY PREC 8SOIC
标准包装: 2,500
类型: 多压监控器
监视电压数目: 3
输出: 开路漏极或开路集电极
复位: 高有效/低有效
复位超时: 最小为 140 ms
电压 - 阀值: 3.118V,4.725V,可调
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 带卷 (TR)
LTC1326/LTC1326-2.5
Micropower Precision
Triple Supply Monitors
FEATURES
DESCRIPTIO
Simultaneously Monitors Three Supplies
LTC1326: 5V, 3.3V and ADJ
LTC1326-2.5: 2.5V, 3.3V and ADJ
Guaranteed Threshold Accuracy: ± 0.75%
Low Supply Current: 20 μ A
Internal Reset Time Delay: 200ms
Manual Push-Button Reset Input
Active Low and Active High Reset Outputs
Active Low “Soft” Reset Output
Power Supply Glitch Immunity
Guaranteed RESET for V CC3 ≥ 1V or V CC5 ≥ 1V
or V CC25 ≥ 1V
8-Pin SO and MSOP Packages
The LTC ? 1326/LTC1326-2.5 are triple supply monitors
intended for systems with multiple supply voltages. They
provide micropower operation, small size and high accu-
racy supply monitoring.
Tight 0.75% threshold accuracy and glitch immunity
ensure reliable reset operation without false triggering.
The 20 μ A typical supply current makes the LTC1326/
LTC1326-2.5 ideal for power-conscious systems.
The RST output is guaranteed to be in the correct state for
V CC3 , V CC5 or V CC25 down to 1V. The LTC1326/LTC1326-2.5
can be configured to monitor one, two or three inputs,
depending on system requirements.
APPLICATIO S
A manual push-button reset input provides the ability to
generate a very narrow “soft” reset pulse (100 μ s typ) or a
200ms reset pulse equivalent to a power-on reset. Both
Desktop Computers
Notebook Computers
Intelligent Instruments
Portable Battery-Powered Equipment
SRST and RST outputs are open-drain and can be OR-tied
with other reset sources.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Protected by U.S. Patents, including 4843302.
TYPICAL APPLICATIO
RST Output Voltage vs Supply Voltage (LTC1326-2.5)
2.5V
3.5
DC/DC
3.3V
SYSTEM
V CC25 = V CCA = V CC3
CONVERTER
V CORE
LOGIC
3.0
4.7k PULL-UP FROM RST TO V CC3
T A = 25 ° C
2.5
V CC25 V CC3 V CCA
0.1 μ F
2.0
1.5
1.0
LTC1326-2.5
0.5
RST
PUSH-BUTTON
RESET
PBR
GND
SRST
0
0
0.5
1.0
1.5 2.0
V CC3 (V)
2.5
3.0
3.5
1326/2.5 TA02
1326/2.5 TA01
132625fc
1
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