参数资料
型号: ICL7665ACPA
厂商: Maxim Integrated Products
文件页数: 6/12页
文件大小: 0K
描述: IC VOLT DETEC DUAL OVR/UND 8-DIP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 50
类型: 多压监控器
监视电压数目: 2
输出: 开路漏极或开路集电极
复位: 高有效
复位超时: 最小 <1 ms
电压 - 阀值: 可调节/可选择
工作温度: 0°C ~ 70°C
安装类型: 通孔
封装/外壳: 8-DIP(0.300",7.62mm)
供应商设备封装: 8-PDIP
包装: 管件
Microprocessor Voltage Monitor with
Dual Over/Undervoltage Detection
V+
4.7k
OUT1
HYST1
1
OUT1
V+
8
4.7k
INPUT
2
3
HYST1
SET1
ICL7665
OUT2
SET2
7
6
OUT2
1.6V
4
GND
HSYT2
5
HSYT2
1.0V
20k
20k
12pF
12pF
12pF
12pF
Figure 1. Test Circuit
_______________Detailed Description
As shown in the block diagram of Figure 2, the Maxim
ICL7665 combines a 1.3V reference with two com-
V+
parators, two open-drain N-channel outputs, and two
open-drain P-channel hysteresis outputs. The refer-
ence and comparator are very low-power linear CMOS
circuits, with a total operating current of 10 μ A maxi-
mum, 3 μ A typical. The N-channel outputs can sink
greater than 10mA, but are unable to source any cur-
rent. These outputs are suitable for wire-OR connections
and are capable of driving TTL inputs when an external
SET1
1.3V
BANDGAP
HYST1
OUT1
pull-up resistor is added.
The ICL7665 Truth Table is shown in Table 1. OUT1 is
an inverting output; all other outputs are noninverting.
HYST1 and HYST2 are P-channel current sources
whose sources are connected to V+. OUT1 and OUT2
REFERENCE
TO V+
HYST2
are N-channel current sinks with their sources connect-
ed to ground. Both OUT1 and OUT2 can drive at least
one TTL load with a V OL of 0.4V.
Table 1. ICL7665 Truth Table
SET2
OUT2
INPUT*
OUTPUT
HYSTERESIS
V SET1 > 1.3V
V SET1 < 1.3V
V SET2 > 1.3V
V SET2 < 1.3V
OUT1 = ON = LOW
OUT1 = OFF = HI
OUT2 = OFF = HI
OUT2 = ON = LOW
HYST1 = ON = HI
HYST1 = OFF = LOW
HYST2 = ON = HI
HYST2 = OFF = LOW
Figure 2. Block Diagram
In spite of the very low operating current, the ICL7665
has a typical propagation delay of only 75 μ s. Since the
comparator input bias current and the output leakages
OUT1 is an inverting output; all others are noninverting. OUT1
and OUT2 are open-drain, N-channel current sinks. HYST1
and HYST2 are open-drain, P-channel current sinks.
* See Electrical Characteristics
are very low, high-impedance external resistors can be
used. This design feature minimizes both the total sup-
ply current used and loading on the voltage source that
is being monitored.
6
_______________________________________________________________________________________
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ICL7665ACPA+ 功能描述:电压监测器/监控器 uP V Monitor w/Dual Over/Under V Detect RoHS:否 制造商:Texas Instruments 监测电压数:2 监测电压:Adjustable 输出类型:Open Drain 欠电压阈值: 过电压阈值: 准确性:1 % 工作电源电压:1.5 V to 6.5 V 工作电源电流:1.8 uA 最大工作温度:+ 125 C 封装 / 箱体:SON-6 安装风格:SMD/SMT
ICL7665ACPA-2 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
ICL7665ACSA 功能描述:电压监测器/监控器 Integrated Circuits (ICs) RoHS:否 制造商:Texas Instruments 监测电压数:2 监测电压:Adjustable 输出类型:Open Drain 欠电压阈值: 过电压阈值: 准确性:1 % 工作电源电压:1.5 V to 6.5 V 工作电源电流:1.8 uA 最大工作温度:+ 125 C 封装 / 箱体:SON-6 安装风格:SMD/SMT
ICL7665ACSA+ 功能描述:电压监测器/监控器 uP V Monitor w/Dual Over/Under V Detect RoHS:否 制造商:Texas Instruments 监测电压数:2 监测电压:Adjustable 输出类型:Open Drain 欠电压阈值: 过电压阈值: 准确性:1 % 工作电源电压:1.5 V to 6.5 V 工作电源电流:1.8 uA 最大工作温度:+ 125 C 封装 / 箱体:SON-6 安装风格:SMD/SMT
ICL7665ACSA+T 功能描述:电压监测器/监控器 uP V Monitor w/Dual Over/Under V Detect RoHS:否 制造商:Texas Instruments 监测电压数:2 监测电压:Adjustable 输出类型:Open Drain 欠电压阈值: 过电压阈值: 准确性:1 % 工作电源电压:1.5 V to 6.5 V 工作电源电流:1.8 uA 最大工作温度:+ 125 C 封装 / 箱体:SON-6 安装风格:SMD/SMT