XBLW LM239 Precision Voltage Comparator Chip with 0.2mA Extremely Low Power Supply Current, Can Be Powered by A Single Power Supply over A Wide Voltage Range

时间： 2024-09-11 来源：XBLW Official Website

技术问答

New Product Introduction

XBLW LM239 Precision voltage comparator chip

1、Product Overview

This series of devices consists of four independent precision voltage comparators, and the offset voltage of LM239DTR is as low as 5mV. Each comparator is specially designed to be powered by a single power supply over a wide voltage range. Separate power sources can also be used for operation.

2、Chip Features

● Single power supply voltage range or dual power supply:+2 to+36 V or ± 1 V to ± 18 V

● Extremely low power supply current (0.2 mA), independent of power supply voltage

● Low input bias current: 25 nA (typical value)

● Low input offset current: ± 5 nA (typical value)

● Low input offset voltage: ± 2 mV (typical value)

● The input common mode voltage range includes ground voltage

● Low output saturation voltage: 250 mV (typical value); (ISINK=4mA)

● The differential input voltage range is equal to the power supply voltage

● TTL, DTL, ECL, MOS, CMOS compatible outputs

3、Pin Definition and Packaging Type

4、 Introduction and Application Principles of Typical Application Circuits

The LM239DTR application circuit - radar cone scan reference signal acquisition circuit uses the voltage comparator chip XBLW LM239DTR, and uses diodes to limit and shape the input cone scan reference signal. The 3.3V of the circuit is a square wave signal, The period is the same as the input signal, and the rising edge of the square wave is considered as the reference signal for cone scanning Phase zero point.

Application Principle: What is A Voltage Comparator?

Simply put, a voltage comparator compares the magnitude of two analog voltages (or two digital voltages, which are not described here) and determines which voltage is higher, as shown in Figure 1. Figure 1 (a) shows a comparator with two input terminals: the in-phase input terminal ("+" terminal) and the in-phase input terminal ("-" terminal), and an output terminal Vout (output level signal). In addition, there is a power supply V+and ground (this is a single power comparator), with the same phase input voltage VA and the opposite phase input VB. The changes in VA and VB are shown in Figure 1 (b). From time 0 to t1, VA>VB; from t1 to t2, VB>VA; from t2 to t3, VA>VB. In this case, the output of Vout is shown in Figure 1 (c): When VA>VB, Vout outputs a high level (saturated output); When VB>VA, Vout outputs a low level. You can determine which voltage is higher based on the output level.

5、Chip Application

● Alarm circuit

● Automatic control circuit

● Power supply voltage monitoring circuit

● Oscillators and voltage controlled oscillators circuits

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芯伯乐对照表

型号- SN74HC273N,ULN2004AN,LM339DTR,MC74HC139AN,HEF4094BT,UC3844BD1013TR,DS1307DTR,74HC4053D,653,HEF4094BP,MC34063ACD-TR,AT24C08C-SSHM-T,HEF4071BP,MAX485ESA,TDA2050A,MC74HC192AN,TC4427EOA,SN74HC175N,TC74HC161AP,SN74HC163N,LM331N/NOPB,74HC374D,653,SN74HC151N,24LC02B-I,CD4051BDTR,SN74HC42N,CD4071BE,CD4094BE,CD4021BCN,24LC02B-P,KA3842A,SN74HC245DTR,ICM7555ESA+T,LM393AN,HEF4082BP,SN74HC244DWR,HCF4021BE,MC74HC32AN,24C64BN,M24C02-WMN6TP,LMV324DR2G,LM1117IMPX-1.8/NOPB,AT24C32C-PUM,ULN2803AN,IR4426STRPBF,74HC10N,LM324N,DS1307Z+T&R,LM337KTTR,CD4082BE,ACS712ELCTR-30AT,HEF4072BP,SN74HC244DTR,SN74HC4051DTR,LM393DR,LM393DT,ST3485ECDR,LM337S,M74HC10B1R,NE5532DR,LM337T,M24C32-WMN6TP,CAT24C02WI-GT3,M24C16-WBN6P,KA3525A,AZ1117CR-5.0TRG1,TC74HC160AP,SN74HC161N,SN74HC32N,SN74HC20N,LM2904DR2G,CD4093BE,M74HC374B1R,HEF4060BT,74HC20N,SA5532DR,MC74HC10AN,HCF4043BE,MAX232CSE,MC74HC238AN,SN74HC165DTR,74HC32N,TC4426COA,AT24C64D-PUM,SN74HC374N,AT24C02C-SSHM-T,SN74HC21N,LMV321IDBVR,MAX3485CSA,LD1117S50CTR,ULN2803APG,MC74HC273ADWR2G,LMV358LIST,HCF4012BE,MC74HC00AN,UC3842BD1R2G,MAX232EDTR,LM317LZ/NOPB,M24C32-WBN6P,SN74HC240N,SN74HC373N,TL3844BDR,LM317LD13TR,CD4052BDTR,24C16N,MAX3232CSE,24C04N,TC74HC4052AF,SN74HC10N,ST485ECDR,LM331MX/NOPB,MC74HC11AN,CD4050BE,TC74HC273AP,TC74HC07AP,PCF8563DTR,74HC14N,MC74HC573ADWR2G,74HC02N,IX4426NTR,CD4012BCN,KA3843A,TC74HC151AP,TL3845BDR,MC74HC138AN,ULN2001DTR,MC33063ADR,SN74HC47N,74HC273D,653,SN74HC11N,LM324DR2G,HEF4093BP,GT7555CDTR,MAX485EBDTR,NCP1117LPST18T3G,MC74HC244ADWR2G,MC34063DR2G,LM317T,TC4426COA713,74HC11N,LM317S,L78M05CDT-TR,SN74HC153N,SP3485CN-L/TR,KA3844A,AZ1117R-5.0TRE1,24LC02B/SN,SN74HC165N,ULN2804APG,24C02N,M74HC00B1R,MC74HC126AN,CP116ADTR,CD4072BE,UC3844BD1R2G,CAT24C128WI-GT3,SN74HC00N,74HC244D,653,HEF4081BP,TC74HC08AP,M74HC259B1R,MC74HC259AN,UC3842AD8TR,M74HC11B1R,TC4426EOA,ULN2004ADR,TC4428EOA13,TL074CDTR,74HC00N,24C02S,M74HC161B1,L293D,74HC245D,653,TC4428COA713,TC74HC192AP,SN74HC192N,24LC64B/SN,TL081CDTR,TC74HC139AP,AZ1117R-3.3TRE1,MC74HC244AN,LM331DTR,MC74HC86AN,LM2903DR2G,AT24C64C-PUM,CD4053BDTR,TL074CDR,TL074CDT,TL3843BDR,L293DNE,AT24C16C-PUM,M74HC02B1R,M74HC273B1R,TL062CDR,CAT24C32WI-GT3,CD4049BE,TL062CDT,24C08N,MAX3232EDTR,MC74HC373ADWR2G,NE5532N,74HC151N,24LC16B-P,NE5532P,MC74HC74AN,MC14050BCP,24LC16B-I,HCF4025BE,UC3845BDTR,TC4428COA,CP2139CN,UC3845BD1013TR,TC74HC138AP,MC14094BDR2G,SN74HC190N,24LC01B/SN,74HC160N,TC74HC14AP,MC74HC245AN,HCF4013BE,CD4077BCN,L293WS,LM324DTR,TL084CDTR,MC14072BCP,CA3140EZ,MC33063DR2G,SN74HC574DWR,ULN2003D1013TR,L7812CV,LM556CN,AMS1117-1.8,24LC16B/SN,IR4428STRPBF,TDA2030AV,CD4025BE,MC14049BCP,TL062CDTR,TC74HC126AP,74HC4052D,653,HCF4001BE,74HC161N,TC74HC02AP,SG3525ADTR,M74HC238B1R,74HC04N,TC74HC259AP,MC7805CTG,SG3525AN,SN74HC160N,SN74HC390N,SG3525ADWR2G,LM337T/NOPB,MC14013BCP,CD4081BE,MC74HC4053ADR2G,CD4043BCN,HEF4050BP,ULN2004APG,LM1117IMPX-3.3/NOPB,LMV358IDT,CAT24C16LI-G,LMV358IDR,TDA2030A,MC74HC574AN,TC4427COA,MC74HC374ADWR2G,SP232ECN-L/TR,SN74HC86N,SN74HC74N,LM78M05CDTX/NO,SP3232ECN-L/TR,L298P,CD4094BM96,L298N,CD4051BM96,LMV324IDR,M74HC192B1R,ICM7555IBAZ-T,LM2904DT,TL082CDTR,MC14071BCP,LMV324IDT,AT24C08C-PUM,24LC08B/SN,TC4428EOA,MIC29302N,LM1875T/NOPB,LM2904DR,LM324SNG,74HC07N,74HC373D,653,LMV321SN3T1G,ICL7555IBAZ,ULN2003APG,MC14082BCP,UC3844BDTR,AT24C128CSSHM-T,MC74HC20AN,M74HC14B1R,74HC192N,24C32BN,MAX3485EEDTR,NCP1117LPST50T3G,ULN2803ADWR,MC74HC573AN,CD4060BDTR,LD1117S18CTR,TL061CDTR,TLC555CDR,LM339DR,SP3232EEN-L/TR,74HC08N,24LC04B-I,M74HC240B1R,TL064CDT,LMV321LILT,LM339DT,ACS712ELCTR-20AT,TL064CDR,24LC04B-P,TC74HC04AP,ULN2003ADR2G,PB,HCF4049BE,MC14025BCP,DS1302ZN+T&R,LMV358MM/NOPB,SN74HC273DWR,AT24C01C-SSHM-T,TL3842BDR,UC3845AD8T,SN74HC14DTR,LM2903DR,TC74HC238AP,M24C16-WMN6TP,LM2903DT,CAT24C08WI-GT3,UC3843BNG,TL071CDT,AZ1117CR-3.3TRG1,ULN2803ADTR,M74HC138B1R,AT24C64C-SSHM-T,CD4060BM96,M74HC574B1R,AT24C08D-PUM,UC3844AD8T,MC74HC240AN,ULN2001ADR,TL071CDTR,GT3140ADTR,HCF4071BE,HCF4094BE,TC74HC244AP,CD74HC4051M96,TC74HC32AP,MC14093BCP,MC34063ADR,74HC574D,653,74HC595D,74HC244D,M24C08-WMN6TP,M24C04-WMN6TP,ULN2004D1013TR,MC14012BCP,DS1302DTR,MC14081BCP,HEF4021BP,SP3232EEN-LR,UC3845N,CD4094BDTR,HCF4082BE,MC74HC165AN,LM358BDTR,74HC4051D,653,74HC244N,MC74HC373AN,TC74HC20AP,24LC02BT-I/OT,74HC374D,IR4427STRPBF,LM1875T,L78M05HDTR,ULN2804ADWR,LM317LDR2G,TL082CDR,LM317TG,CD4021BE,ULN2803AFWG,CD4050BCN,LM2903DTR,M24C04-WBN6P,CAT24C02LI-G,MC14001BCP,CD4049BCN,M74HC151B1R,TC74HC573AP,HCF4093BE,24LC08B-I,SN74HC273DTR,UC3845AN,UC3843BDTR,TC74HC10AP,74HC374N,M74HC04B1R,LM393P,UC3844BNG,MC74HC112N,AT24C04D-PUM,24LC08B-P,M74HC139B1R,CD4052BM96G3,TL082CN,LM393N,MC34063ADTR,GT4427DTR,LM321DTR,MC74HC07AN,AMS1117-5.0,SG3525ANG,24C04BN,CAT24C64LI-G,SP232EEN-L/TR,LMV358DR2G,TL082CDT,LM358DMR2G,ULN2803A,LMV358AMDTR,SN74HC238N,MC78M05CDTRKG,SN74HC541N,SN74HC595DTR,M74HC74B1R,AT24C32C-SSHM-T,TL071CDR,MC74HC374AN,HCF4081BE,MC14094BCP,LM324DT,UC3845BD1R2G,LG9110,74HC595D,118,UC3842BD1013TR,ICM7555CD,CAT24C01WI-GT3,UC3844BN,LM324DR,LM358DTR,DS1307ZN+T&R,TL061CDR,HEF4077BP,LM393DTR,TL08

对照表 - 芯伯乐 - 2023/12/28 PDF 中文下载

芯伯乐逻辑器件选型表

芯伯乐逻辑电路提供以下参数：工作电压：2~15V，工作温度-40~105℃，湿气敏感性等级：3级(168小时)，等级认证标准：SGS,ISO9001，ISO14001，DIP-14/16/20、SOP-14/16/20、TSSOP-14/16/20封装形式。

产品型号	品类	等级认证标准	工作电压(V)	工作温度（℃）	湿气敏感性等级	封装
CD4001BE	逻辑电路	SGS,ISO9001，ISO14001	3-15V	-40~85℃	3级(168小时)	DIP-14

选型表 - 芯伯乐立即选型

芯伯乐电源管理类芯片介绍：提供主流降压、升压、升降压转换及PWM脉冲调制控制IC，用于驱动外部开关

芯伯乐XBLW的电源管理类芯片方面，主流的DC/DC芯片有降压（Buck）、升压（Boost）、升降压转换（Buck-Boos）以及PWM脉冲调制控制IC，用于驱动外部开关。随着电子设备朝着更小型化、更高性能的方向发展，电源管理芯片也面临着诸多挑战。芯伯乐（XBLW）未来的发展趋势将聚焦于提高集成度、优化能源效率、提升兼容性和通用性，以及探索新材料和新技术的应用。

产品发布时间 : 2024-05-04

深圳市芯伯乐（XBLW）电子有限公司是一家专业从事半导体器件研发与销售的企业。创始人与核心团队拥有近20年的国产半导体行业经验，拥有国际一流水准的高性能模拟、混合集成电路设计能力和依据产品性能指标设计集成电路的丰富经验。

EEPR0M存储器 FLASH存储器 I2C通用接口 LVDS接口比较器串行数字接口SDI MOS管 CAN收发器音频放大器压频转换器运算放大器特殊功能放大器温度传感 LED驱动达林顿驱动器 DC-DC开关电源 DC-DC同步整流器实时时钟电压基准源电压监控电压检测 ARM处理器 8位位单片机晶体管人体红外线感应信号处理器可控硅 MOSFT 三极管二极管线性稳压器 RS-232驱动器 RS-232接收器计时器脉冲宽度调制解调器 RS485收发器 RS422收器 74逻辑器件 4000逻辑器件 LCD驱动马达驱动

授权代理商 - 世强先进（深圳）科技股份有限公司线上商城技术资料

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芯伯乐驱动电路选型表

芯伯乐提供达林顿驱动电路&马达驱动电路&栅极驱动IC的参数选型，工作电压(V)：2-60V，驱动电流：0.3~4A，湿气敏感性等级：3级(168小时)，等级认证标准：SGS,ISO9001，ISO14001，DIP-18、SOP-18、SOP-8、SOT23-6等多种封装形式。

产品型号	品类	等级认证标准	驱动电流（A）	湿气敏感性等级	工作电压（V）	封装
ULN2803AN	达林顿驱动电路	SGS,ISO9001，ISO14001	0.5A	3级(168小时)	50V	DIP-18

选型表 - 芯伯乐立即选型

【IC】芯伯乐低功耗实时时钟芯片DS1302＆DS1307，为电子系统提供精确到秒的高精度可靠计时功能

时钟芯片是日常生活中应用最为广泛的消费类电子产品之一。芯伯乐推出的实时时钟（RTC）芯片DS1302＆DS1307，都是功能强大、可靠性高的实时时钟芯片。它们的高精度、低功耗设计以及多种特殊功能使得它在各种应用中被广泛采用。无论是计算机系统、通信设备、工业控制还是嵌入式系统，都能够为其提供可靠的时间管理和记录功能。

产品发布时间 : 2023-12-18

芯伯乐直流小电机驱动芯片L9110S介绍及设计

XBLW L9110S是为控制和驱动电机设计的两通道推挽式功率放大专用集成电路，将分立电路集成在单片 IC 中，使外围器件简单，整机成本降低的同时可靠性大大提高。

产品发布时间 : 2024-04-17

芯伯乐L7805三端稳压器凭借稳定性能和独特优势，为各种电子设备提供可靠的电源保障

在电子设备中，有一个默默无闻的英雄——L7805三端稳压器，它以其稳定的性能和广泛的应用，为众多电子设备提供可靠的电源保障。今天，就让我们一起揭开L7805的神秘面纱，了解它在电子世界中的重要作用。

产品发布时间 : 2024-08-17

芯伯乐电源管理IC 选型表

芯伯乐，电源管理IC包含线性稳压器、DCDC开关电源、脉冲宽度调制解调器、人体感应传感器，工作电压(V)：1.2-40V，湿气敏感性等级：3级(168小时)，等级认证标准：SGS,ISO9001,ISO1400，工作温度：-10~150℃，有TO-252、TO-263、SOT-223等多种封装形式。

产品型号	品类	工作电压(V)	湿气敏感性等级	等级认证标准	封装	工作温度
L78M12HDTR	线性稳压器	12V	3级(168小时)	SGS,ISO9001,ISO1400	TO-252	-20~125℃