参数资料
型号: LTC2914HGN-2#TRPBF
厂商: Linear Technology
文件页数: 1/18页
文件大小: 0K
描述: IC VOLT MONITOR QUAD 16SSOP
标准包装: 2,500
类型: 多压监控器
监视电压数目: 4
输出: 开路漏极或开路集电极
复位: 低有效
复位超时: 可调节/可选择
电压 - 阀值: 可调节/可选择
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 16-SSOP(0.154",3.90mm 宽)
供应商设备封装: 16-SSOP
包装: 带卷 (TR)
LTC2914
Monitors Four Voltages Simultaneously
Adjustable UV and OV Trip Values
Guaranteed Threshold Accuracy: ±1.5% of
Input Glitch Rejection
Monitors up to Two Negative Voltages
Buffered 1V Reference Output
Adjustable Reset Timeout with Timeout Disable
62μA Quiescent Current
Open-Drain OV and UV Outputs
Guaranteed OV and UV for V CC ≥ 1V
Available in 16-Lead SSOP and 16-Lead
Desktop and Notebook Computers
Network Servers
Core, I/O Voltage Monitors
FEATURES
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Monitored Voltage over Temperature
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(5mm × 3mm) DFN Packages
APPLICATIONS
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Quad UV/OV
Positive/Negative
Voltage Monitor
DESCRIPTION
The LTC ? 2914 is a quad input voltage monitor intended for
monitoring multiple voltages in a variety of applications.
Dual inputs for each monitored voltage allow monitor-
ing four separate undervoltage (UV) conditions and four
separate overvoltage (OV) conditions. All monitors share
a common undervoltage output and a common overvolt-
age output. The LTC2914-1 has latching capability for the
overvoltage output. The LTC2914-2 has functionality to
disable both the overvoltage and undervoltage outputs.
Polarity selection and a buffered reference allow monitor-
ing up to two separate negative voltages. A three-state
input pin allows setting the polarity of two inputs without
requiring any external components. Glitch filtering ensures
reliable reset operation without false or noisy triggering.
The LTC2914 provides a precise, versatile, space-con-
scious, micropower solution for voltage monitoring.
L , LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
TYPICAL APPLICATION
Quad UV/OV Supply Monitor,10% Tolerance, 5V, 3.3V, 2.5V, 1.8V
5V
P0WER
SUPPLIES
3.3V
2.5V
1.8V
0.1 μ F
Input Threshold Voltage
vs Temperature
44.2k
1k
27.4k
VH1
V CC
SEL
0.505
0.504
0.503
4.53k
1k
4.53k
19.6k
VL1 OV
VH2
LTC2914-1
VL2 UV
REF
VH3 LATCH
SYSTEM
0.502
0.501
0.500
0.499
0.498
1k
12.4k
VL3
0.497
0.496
4.53k
1k
VH4
0.495
–50
–25
0
25 50
75
100
VL4
TEMPERATURE ( ° C)
4.53k
GND
TMR
C TMR
22nF
2914 TA01a
TIMEOUT = 200ms
2914 TA01b
2914fc
For more information www.linear.com/LTC2914
1
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