Datasheet > LS6525

LS6525

更新时间： 2024-02-22 13:30:33

品牌	Logo	应用领域
LSI		电池传感器红外传感器
页数	文件大小	规格书
5页	191K
描述
BATTERY POWERED LOW-POWER PIR SENSOR INTERFACE

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LS6525 数据手册

LS6525

LS6526

ꢀ

Mar 2013

BATTERY POWERED LOW-POWER PIR SENSOR INTERFACE

FEATURES:

PIN ASSIGNMENT

•

Power derived from 3.0V Lithium battery

V_DDoperating range 2.3V to 3.6V

25μA maximum quiescent current (LS6525)

30μA maximum quiescent current (LS6526)

Direct interface with PIR sensor

Analog signal and digital interrupt signal outputs for interfacing

with a MCU

•

2.175V regulated output

Low battery indicator output (LS6526)

LS6525 (DIP), LS6525-S (SOIC)

LS6526 (DIP), LS6526-S (SOIC)

APPLICATIONS:

The low operating voltage and low current drain make the LS6525 /

LS6526 ideal for microcontroller based portable applications such as

battery operated motion detectors and photographic equipment,

automatic doors, intrusion detection, and anywhere electric outlets

are not available.

DESCRIPTION:

The LS6525 / LS6526 is a CMOS integrated circuit designed for

detecting motion from a PIR sensor and is microcontroller interface

ready. It uses a 3.0V Li battery as a source of energy for its

operation. The detailed description of the functional blocks is as

follows (refer to Figure 2).

Figure 1

AMPLIFIERS

The input PIR preamplifier, AMP1, has a nominal gain set at 29V/V

using internal resistors. An internal bias is used so that AMP1O

output has a quiescent voltage of 1.1V. The output of the PIR

amplifier is AC coupled to a second amplifier (AMP2) which uses

external components to set the gain. This second stage is internally

biased and applied to a window comparator which has lower and

higher trip levels set with respect to that bias. External components

are used to set a typical gain of 22V/V. Amplified signals greater in

magnitude than the trip levels will cause an interrupt signal to be

generated at the INT open drain output, pin 12. The INT output can

be pulled to a voltage higher than V_DD(pin 13).

INPUT / OUTPUT DESCRIPTION

PIN1 – PYRO Input – Non-inverting input of PIR amplifier AC

coupled to source of PIR signal.

PIN2 – VREG Output – This output provides power to the PIR

Sensor circuit and for all the internal amplifier circuitry.

PIN3 – AMP1O Output – Output terminal of the PIR amplifier

PIN4 – MCP – 0.5V internal bias. (Internal use only. No external

components.)

The output of the PIR amplifier is also AC coupled to an additional

amplifier (MCU amplifier) which uses external components to set the

gain. An internal bias set the MCO output at 0.5V and external

resistors set a typical gain = 10V/V, the MCO output signal can be

applied to a microcontroller input for processing.

PIN5 – MCN Input – Inverting input to the MCU amplifier.

PIN6 – MCO Output – Output of the MCU amplifier.

6525-030713-1

12 3 4 5

中文翻译

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与LS6525相关器件

型号	品牌	获取价格	描述	数据表
LS6526	LSI	获取价格	BATTERY POWERED LOW-POWER PIR SENSOR INTERFACE
LS655	TAIYO YUDEN	获取价格	12 Volt Input Dual Tube CCFT Inverter (4W) Brightness Control
LS656	STMICROELECTRONICS	获取价格	TELEPHONE SPEECH CIRCUIT WITH MULTIFREQUENCY TONE GENERATOR INTERFACE
LS656AB	STMICROELECTRONICS	获取价格	TELEPHONE SPEECH CIRCUIT WITH MULTIFREQUENCY TONE GENERATOR INTERFACE
LS656AD1	STMICROELECTRONICS	获取价格	TELEPHONE SPEECH CIRCUIT WITH MULTIFREQUENCY TONE GENERATOR INTERFACE
LS656B	STMICROELECTRONICS	获取价格	TELEPHONE SPEECH CIRCUIT WITH MULTIFREQUENCY TONE GENERATOR INTERFACE
LS680-1	TAIYO YUDEN	获取价格	12 Volt Input Four Tube CCFT Inverter (8W) Brightness Control
LS6A1M-T	CITIZEN	获取价格	Non-illuminated/Vertical Type
LS6A2M-T	CITIZEN	获取价格	Non-illuminated/Vertical Type
LS6D25-681-RN	ICE	获取价格	Surface Mount Power Inductors

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