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LM4128-Q1

現行

具關機觸發針腳的車用 0.1% 75-ppm/°C SOT-23 精密微功耗串聯電壓參考

產品詳細資料

Rating Automotive VO (V) 1.8, 2.048, 2.5, 3, 3.3, 4.1 Temp coeff (max) (ppm/°C) 75, 100 Initial accuracy (max) (%) 0.1, 0.2, 0.5, 1 Features Enable pin Iout/Iz (max) (mA) 20 Vin (min) (V) 2.2 Vin (max) (V) 5.5 Iq (typ) (mA) 0.06, 60 TI functional safety category Functional Safety-Capable LFN 0.1 to 10 Hz (typ) (µVPP) 170 Operating temperature range (°C) -40 to 125 Shutdown current (ISD) (typ) (µA) 3
Rating Automotive VO (V) 1.8, 2.048, 2.5, 3, 3.3, 4.1 Temp coeff (max) (ppm/°C) 75, 100 Initial accuracy (max) (%) 0.1, 0.2, 0.5, 1 Features Enable pin Iout/Iz (max) (mA) 20 Vin (min) (V) 2.2 Vin (max) (V) 5.5 Iq (typ) (mA) 0.06, 60 TI functional safety category Functional Safety-Capable LFN 0.1 to 10 Hz (typ) (µVPP) 170 Operating temperature range (°C) -40 to 125 Shutdown current (ISD) (typ) (µA) 3
SOT-23 (DBV) 5 8.12 mm² (2.9 mm × 2.8 mm)
  • Output Voltage Initial Accuracy 0.1%
  • Low Temperature Coefficient 75 ppm/°C
  • Low Supply Current, 60 µA
  • Enable Pin Allowing a 3 µA Shutdown Mode
  • Up to 20 mA Output Current
  • Voltage Options 1.8V, 2.048V, 2.5V, 3.0V, 3.3V, 4.096V
  • Custom Voltage Options Available (1.8V to 4.096V)
  • VIN Range of VREF + 400 mV to 5.5V @10 mA
  • Stable with Low ESR Ceramic Capacitors
  • 5-Pin SOT-23 Package
  • −40°C to 125°C Junction Temperature Range
  • LM4128AQ/BQ/CQ/DQ are AEC-Q100 Grade 1 Qualified and are Manufactured on an Automotive Grade Flow

All trademarks are the property of their respective owners.

  • Output Voltage Initial Accuracy 0.1%
  • Low Temperature Coefficient 75 ppm/°C
  • Low Supply Current, 60 µA
  • Enable Pin Allowing a 3 µA Shutdown Mode
  • Up to 20 mA Output Current
  • Voltage Options 1.8V, 2.048V, 2.5V, 3.0V, 3.3V, 4.096V
  • Custom Voltage Options Available (1.8V to 4.096V)
  • VIN Range of VREF + 400 mV to 5.5V @10 mA
  • Stable with Low ESR Ceramic Capacitors
  • 5-Pin SOT-23 Package
  • −40°C to 125°C Junction Temperature Range
  • LM4128AQ/BQ/CQ/DQ are AEC-Q100 Grade 1 Qualified and are Manufactured on an Automotive Grade Flow

All trademarks are the property of their respective owners.

Ideal for space critical applications, the LM4128 precision voltage reference is available in the SOT-23 surface-mount package. The LM4128’s advanced design eliminates the need for an external stabilizing capacitor while ensuring stability with capacitive loads up to 10 µF, thus making the LM4128 easy to use.

Series references provide lower power consumption than shunt references, since they do not have to idle the maximum possible load current under no load conditions. This advantage, the low quiescent current (60 µA), and the low dropout voltage (400 mV) make the LM4128 ideal for battery-powered solutions.

The LM4128 is available in four grades (A, B, C, and D) for greater flexibility. The best grade devices (A) have an initial accuracy of 0.1% with ensured temperature coefficient of 75 ppm/°C or less, while the lowest grade parts (D) have an initial accuracy of 1.0% and a tempco of 100 ppm/°C.

Ideal for space critical applications, the LM4128 precision voltage reference is available in the SOT-23 surface-mount package. The LM4128’s advanced design eliminates the need for an external stabilizing capacitor while ensuring stability with capacitive loads up to 10 µF, thus making the LM4128 easy to use.

Series references provide lower power consumption than shunt references, since they do not have to idle the maximum possible load current under no load conditions. This advantage, the low quiescent current (60 µA), and the low dropout voltage (400 mV) make the LM4128 ideal for battery-powered solutions.

The LM4128 is available in four grades (A, B, C, and D) for greater flexibility. The best grade devices (A) have an initial accuracy of 0.1% with ensured temperature coefficient of 75 ppm/°C or less, while the lowest grade parts (D) have an initial accuracy of 1.0% and a tempco of 100 ppm/°C.

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 LM4128/LM4128Q SOT-23 Precision Micropower Series Voltage Reference datasheet (Rev. E) 2013/3/29
功能安全資訊 LM4128, LM4128-Q1 Functional Safety FIT Rate and Failure Mode Distribution (Rev. A) PDF | HTML 2024/9/17
應用說明 Voltage Reference Selection and Design Tips For Data Converters (Rev. B) PDF | HTML 2024/1/9
電子書 Tips and tricks for designing with voltage references (Rev. A) 2021/5/7
電子書 Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 2019/6/28
白皮書 Voltage reference selection basics white paper (Rev. A) 2018/10/23
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TIDA-00282 — 車用數位控制升壓電源

此 TI 參考設計為汽車電壓升壓轉換器模組。此模組的目的在於透過升壓操作,於電壓驟降事件(例如引擎啟動)期間,為車輛電子設備提供穩定的電壓。此設計以 C2000 即時微控制器為基礎,透過 12V 汽車電池系統提供高達 400 瓦特的功率。  此解決方案支援 6V-16V 的持續運作輸入電壓,並對 36V 負載突降提供防護,以提供穩定的 12V 輸出供應與反向電池保護。

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