参数资料
| 型号： | X40035S14-CT1 |
| 厂商： | Intersil |
| 文件页数： | 7/23页 |
| 文件大小： | 0K |
| 描述： | IC VOLTAGE MONITOR TRPL 14-SOIC |
| 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： | 低有效 |
| 复位超时： | 可调节/可选择 |
| 电压 - 阀值： | 1V，2.9V，4.6V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 14-SOICN |
| 包装： | 带卷 (TR) |
X40030, X40031, X40034, X40035
Principles of Operation
Power-on Reset
Applying power to the X40030, X40031, X40034, X40035
activates a Power-on Reset Circuit that pulls the
RESET/RESET pins active. This signal provides several
benefits.
? It prevents the system microprocessor from starting to
operate with insufficient voltage.
? It prevents the processor from operating prior to
stabilization of the oscillator.
? It allows time for an FPGA to download its configuration
prior to initialization of the circuit.
? It prevents communication to the EEPROM, greatly reducing
the likelihood of data corruption on power-up.
When V CC exceeds the device V TRIP1 threshold value for
t PURST (selectable), the circuit releases the RESET (X40031,
X40035) and RESET (X40030, X40034) pin allowing the
system to begin operation.
For the X40030 and X40031 the V2FAIL signal remains
active until the V2MON drops below 1V (V2MON falling). It
also remains active until V2MON returns and exceeds
V TRIP2 .This voltage sense circuitry monitors the power
supply connected to V2MON pin. If V CC = 0, V2MON can still
be monitored.
For the X40034 and X40035, the V2FAIL signal remains
active until V CC drops below 1V and remains active until
V2MON returns and exceeds V TRIP2 .This sense circuitry is
powered by V CC . If V CC = 0, V2MON cannot be monitored.
Low Voltage V3 Monitoring
The X40030, X40031, X40034, X40035 also monitors a third
voltage level and asserts V3FAIL if the voltage falls below a
preset minimum V TRIP3 . The V3FAIL signal is either ORed
with RESET to prevent the microprocessor from operating in
a power fail or brownout condition or used to interrupt the
microprocessor with notification of an impending power
failure. The V3FAIL signal remains active until the V3MON
drops below 1V (V3MON falling). It also remains active until
V3MON returns and exceeds V TRIP3 .
SYSTEM
X40030, X40034
V CC
This voltage sense circuitry monitors the power supply
connected to V3MON pin. If V CC = 0, V3MON can still be
RESET
RESET
MR
MANUAL
RESET
monitored.
Early Low V CC Detection (LOWLINE)
This CMOS output goes LOW earlier than RESET/RESET
whenever V CC falls below the V TRIP1 voltage and returns
high when V CC exceeds the V TRIP1 voltage. There is no
FIGURE 1. CONNECTING A MANUAL RESET PUSH-BUTTON
Manual Reset
power-up delay circuitry (t PURST ) on this pin.
V CC
X40031-A
By connecting a push-button directly from MR to ground, the
designer adds manual system reset capability. The MR pin is
6V TO 10V
5V
V CC
RESET
LOW while the push-button is closed and RESET/RESET
pin remains HIGH/LOW until the push-button is released and
for t PURST thereafter.
1M
390k
3.3V
V2MON
V3MON
(1.7V)
V2FAIL
V3FAIL
SYSTEM
RESET
POWER
Low Voltage V CC (V1 Monitoring)
During operation, the X40030, X40031, X40034, X40035
FAIL
INTERRUPT
monitors the V CC level and asserts RESET/RESET if the
supply voltage falls below a preset minimum V TRIP1 . The
RESET signal prevents the microprocessor from operating in
a power fail or brownout condition. The RESET/RESET
UNREG.
SUPPLY
5V
REG
X40031-B
V CC
V CC
signal remains active until the voltage drops below 1V. It also
remains active until V CC returns and exceeds V TRIP1 for
t PURST .
Low Voltage V2 Monitoring
3.0V
REG
1.8V
REG
V2MON
V3MON
RESET
V2FAIL
SYSTEM
RESET
The X40030 also monitors a second voltage level and
asserts V2FAIL if the voltage falls below a preset minimum
V TRIP2 . The V2FAIL signal is either ORed with RESET to
prevent the microprocessor from operating in a power fail or
brownout condition or used to interrupt the microprocessor
with notification of an impending power failure.
7
V3FAIL
NOTICE: NO EXTERNAL COMPONENTS REQUIRED TO MONITOR
THREE VOLTAGES.
FIGURE 2. TWO USES OF MULTIPLE VOLTAGE MONITORING
FN8114.2
August 25, 2008
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相关代理商/技术参数 |
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| X40035S14I-A | 功能描述:IC VOLTAGE MONITOR TRPL 14-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:100 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:- 复位:低有效 复位超时:最小为 100 ms 电压 - 阀值:4.38V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:8-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:8-TSSOP 包装:管件 |
| X40035S14I-AT1 | 功能描述:IC VOLTAGE MONITOR TRPL 14-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:100 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:- 复位:低有效 复位超时:最小为 100 ms 电压 - 阀值:4.38V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:8-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:8-TSSOP 包装:管件 |
| X40035S14I-B | 功能描述:IC VOLTAGE MONITOR TRPL 14-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:100 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:- 复位:低有效 复位超时:最小为 100 ms 电压 - 阀值:4.38V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:8-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:8-TSSOP 包装:管件 |
| X40035S14I-BT1 | 功能描述:IC VOLTAGE MONITOR TRPL 14-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:100 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:- 复位:低有效 复位超时:最小为 100 ms 电压 - 阀值:4.38V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:8-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:8-TSSOP 包装:管件 |
| X40035S14I-C | 功能描述:IC VOLTAGE MONITOR TRPL 14-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:100 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:- 复位:低有效 复位超时:最小为 100 ms 电压 - 阀值:4.38V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:8-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:8-TSSOP 包装:管件 |
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