Datasheet > ADT6503SRJZN035RL7

ADT6503SRJZN035RL7

更新时间： 2024-02-15 18:21:53

品牌	Logo	应用领域
亚德诺 - ADI		开关
页数	文件大小	规格书
16页	295K
描述
Low Cost, 2.7 V to 5.5 V, Micropower Temperature Switches in SOT-23

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ADT6503SRJZN035RL7 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	包装说明：	TSOP5/6,.11,37
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.71
最大精度（摄氏度）：	6 Cel	主体宽度：	1.6 mm
主体高度：	1.45 mm	主体长度或直径：	2.9 mm
JESD-609代码：	e3	安装特点：	SURFACE MOUNT
位数：	11	端子数量：	5
最大工作电流：	0.08 mA	最高工作温度：	125 °C
最低工作温度：	-55 °C	输出接口类型：	I2C INTERFACE
封装主体材料：	PLASTIC/EPOXY	封装等效代码：	TSOP5/6,.11,37
封装形状/形式：	RECTANGULAR	电源：	3/5 V
传感器/换能器类型：	TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SINGLE TRIP POINT	子类别：	Other Sensors/Transducers
最大供电电压：	5.5 V	最小供电电压：	2.7 V
表面贴装：	YES	端子面层：	Matte Tin (Sn)
端接类型：	SOLDER	Base Number Matches：	1

ADT6503SRJZN035RL7 数据手册

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ADT6501/ADT6502/ADT6503/ADT6504

Data Sheet

THEORY OF OPERATION

CIRCUIT INFORMATION

FACTORY-PROGRAMMED THRESHOLD RANGE

The ADT6501/ADT6502/ADT6503/ADT6504 are 11-bit digital

temperature sensors with a 12^thbit acting as the sign bit. An

on-board temperature sensor generates a voltage precisely

proportional to absolute temperature, which is compared to

an internal voltage reference and input to a precision digital

modulator. The 12-bit output from the modulator is input into a

digital comparator where it is compared with a factory-set trip

level. The output trip pin is activated if the temperature measured

is greater than, in the case of the ADT6501/ADT6502, or less

than, in the case of the ADT6503/ADT6504, the factory-set trip

level. Overall accuracy for the ADT650x family is 6°C

(maximum) from −45°C to +115°C.

The ADT6501/ADT6502/ADT6503/ADT6504 are available

with factory-set threshold levels ranging from −45°C to +115°C

in 10°C temperature steps. The ADT6501/ADT6503 outputs are

intended to interface to reset inputs of microprocessors. The

ADT6502/ADT6504 are intended for driving circuits of

applications such as fan control circuits. Table 4 lists the

available temperature threshold ranges.

Table 4. Factory-Set Temperature Threshold Ranges

Device

Threshold (T_TH) Range

+35°C < T_TH< +115°C

−45°C < T_TH< +15°C

ADT6501

ADT6502

ADT6503

ADT6504

The on-board temperature sensor has excellent accuracy and

linearity over the entire rated temperature range without needing

correction or calibration by the user. The ADT6501/ADT6503

have active low, open-drain output structures that can sink

current. The ADT6502/ADT6504 have active high, push-pull

output structures that can sink and source current. On power-

up, the output becomes active when the first conversion is

completed, which typically takes 30 ms.

HYSTERESIS INPUT

The HYST pin is used to select a temperature hysteresis of 2°C or

10°C. The digital comparator ensures excellent accuracy for the

hysteresis value. If the HYST pin is connected to V_CC, a hysteresis

of 10°C is selected. If the HYST pin is connected to GND, a

hysteresis of 2°C is selected. The HYST pin should not be left

floating. Hysteresis prevents oscillation on the output pin when

the temperature is approaching the trip point and after the

output pin is activated. For example, if the temperature trip is

45°C and the hysteresis selected is 10°C, the temperature would

have to go as low as 35°C before the output deactivates.

The sensor output is digitized by a first-order, ∑-∆ modulator,

also known as the charge balance type analog-to-digital

converter (ADC). This type of converter utilizes time domain

oversampling and a high accuracy comparator to deliver 11 bits

of effective accuracy in an extremely compact circuit.

CONVERTER DETAILS

TEMPERATURE CONVERSION

The Σ-Δ modulator consists of an input sampler, a summing

network, an integrator, a comparator, and a 1-bit digital-to-

analog converter (DAC). Similar to the voltage-to-frequency

converter, this architecture creates a negative feedback loop and

minimizes the integrator output by changing the duty cycle of

the comparator output in response to input voltage changes.

The comparator samples the output of the integrator at a much

higher rate than the input sampling frequency; this is called

oversampling. Oversampling spreads the quantization noise

over a much wider band than that of the input signal,

The conversion clock for the part is generated internally. No

external clock is required. The internal clock oscillator runs an

automatic conversion sequence. During this automatic conversion

sequence, a conversion is initiated every 600 ms. At this time, the

part powers up its analog circuitry and performs a temperature

conversion.

This temperature conversion typically takes 30 ms, after which

the analog circuitry of the part automatically shuts down. The

analog circuitry powers up again 570 ms later, when the 600 ms

timer times out and the next conversion begins. The result of

the most recent temperature conversion is compared with the

factory-set trip point value. If the temperature measured is

greater than the trip point value, the output is activated. The

output is deactivated once the temperature crosses back over

the trip point threshold plus whatever temperature hysteresis is

selected. Figure 15 to Figure 18 show the transfer function for

the output trip pin of each generic model.

improving overall noise performance and increasing accuracy.

Rev. B | Page 8 of 16

1...5 6 789 10 11...16

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与ADT6503SRJZN035RL7相关器件

型号	品牌	描述	获取价格	数据表
ADT6503SRJZN045RL7	ADI	Low Cost, 2.7 V to 5.5 V, Micropower Temperature Switches in SOT-23	获取价格
ADT6503SRJZP005RL7	ADI	Low Cost, 2.7 V to 5.5 V, Micropower Temperature Switches in SOT-23	获取价格
ADT6503SRJZP015RL7	ADI	Low Cost, 2.7 V to 5.5 V, Micropower Temperature Switches in SOT-23	获取价格
ADT6504	ADI	Low Cost, 2.7 V to 5.5 V, Micropower Temperature Switches in SOT-23	获取价格
ADT6504_15	ADI	Low Cost, 2.7 V to 5.5 V, Micropower Temperature Switches in SOT-23	获取价格
ADT6504ARJN005	ADI	Low Cost, 2.7 V to 5.5 V, Micropower Temperature Switches in SOT-23	获取价格
ADT6504ARJN015	ADI	Low Cost, 2.7 V to 5.5 V, Micropower Temperature Switches in SOT-23	获取价格
ADT6504ARJN025	ADI	Low Cost, 2.7 V to 5.5 V, Micropower Temperature Switches in SOT-23	获取价格
ADT6504ARJN035	ADI	Low Cost, 2.7 V to 5.5 V, Micropower Temperature Switches in SOT-23	获取价格
ADT6504ARJN045	ADI	Low Cost, 2.7 V to 5.5 V, Micropower Temperature Switches in SOT-23	获取价格

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