REF3333

現行

3.3-V、30-ppm/°C 漂移、3.9-µA、3 接腳 SOT-23、3 接腳 SC70、8 接腳 UQFN 電壓參考

現在提供此產品的更新版本

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功能相同,但引腳輸出與所比較的產品不同
REF35 現行 650-nA 靜態電流、12-ppm/°C 漂移、超低功率精密電壓參考 680-nA ultra-low-power, wide OTP programmable-voltage option from 1.024 V to 5 V and high precision at 0.05% intial accuracy and 6ppm/°C drift.

產品詳細資料

VO (V) 3.3 Initial accuracy (max) (%) 0.15 Temp coeff (max) (ppm/°C) 30 Vin (min) (V) 3.5 Vin (max) (V) 5.5 Iq (typ) (mA) 0.0039 Rating Catalog LFN 0.1 to 10 Hz (typ) (µVPP) 92 Iout/Iz (max) (mA) 5 Operating temperature range (°C) -40 to 125
VO (V) 3.3 Initial accuracy (max) (%) 0.15 Temp coeff (max) (ppm/°C) 30 Vin (min) (V) 3.5 Vin (max) (V) 5.5 Iq (typ) (mA) 0.0039 Rating Catalog LFN 0.1 to 10 Hz (typ) (µVPP) 92 Iout/Iz (max) (mA) 5 Operating temperature range (°C) -40 to 125
SOT-23 (DBZ) 3 6.9204 mm² 2.92 x 2.37 SOT-SC70 (DCK) 3 4.2 mm² 2 x 2.1
  • Microsize Packages: SC70-3, SOT-23-3, UQFN-8
  • Low Supply Current: 3.9 µA (typ)
  • Extremely Low Dropout Voltage: 110 mV (typ)
  • High Output Current: ±5 mA
  • Low Temperature Drift: 30 ppm/°C (max)
  • High Initial Accuracy: ±0.15% (max)
  • 0.1-Hz to 10-Hz Noise: 35 µVPP (REF3312)
  • Voltage Options: 1.2 V, 1.8 V, 2.5 V, 3 V, 3.3 V
  • Microsize Packages: SC70-3, SOT-23-3, UQFN-8
  • Low Supply Current: 3.9 µA (typ)
  • Extremely Low Dropout Voltage: 110 mV (typ)
  • High Output Current: ±5 mA
  • Low Temperature Drift: 30 ppm/°C (max)
  • High Initial Accuracy: ±0.15% (max)
  • 0.1-Hz to 10-Hz Noise: 35 µVPP (REF3312)
  • Voltage Options: 1.2 V, 1.8 V, 2.5 V, 3 V, 3.3 V

The REF33xx is a low-power, precision, low-dropout voltage reference family available in tiny SC70-3 and SOT-23-3 packages, and in a 1.5-mm × 1.5-mm UQFN-8 package. Small size and low power consumption (5-µA max) make the REF33xx ideal for a wide variety of portable and battery-powered applications.

The REF33xx can be operated at a supply voltage 180 mV above the specified output voltage under normal load conditions, with the exception of the REF3312, which has a minimum supply voltage of 1.7 V. All models are specified for the wide temperature range of –40°C to +125°C.

 

 

The REF33xx is a low-power, precision, low-dropout voltage reference family available in tiny SC70-3 and SOT-23-3 packages, and in a 1.5-mm × 1.5-mm UQFN-8 package. Small size and low power consumption (5-µA max) make the REF33xx ideal for a wide variety of portable and battery-powered applications.

The REF33xx can be operated at a supply voltage 180 mV above the specified output voltage under normal load conditions, with the exception of the REF3312, which has a minimum supply voltage of 1.7 V. All models are specified for the wide temperature range of –40°C to +125°C.

 

 

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技術文件

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類型 標題 日期
* Data sheet REF33xx 3.9-μA, SC70-3, SOT-23-3, and UQFN-8, 30-ppm/°C Drift Voltage Reference datasheet (Rev. H) PDF | HTML 2018年 1月 16日
Application note Voltage Reference Selection and Design Tips For Data Converters (Rev. B) PDF | HTML 2024年 1月 9日
Selection guide Current Sense Amplifiers (Rev. E) 2021年 9月 20日
E-book Tips and tricks for designing with voltage references (Rev. A) 2021年 5月 7日
White paper Simplifying Signal Chain Design for High Performance in Small Systems 2020年 10月 22日
Functional safety information REF33xx Functional Safety FIT Rate and Failure Mode Distribution 2019年 12月 18日
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 2019年 6月 28日
Application note Diode-Based Temperature Measurements (Rev. A) 2019年 5月 17日
White paper Voltage reference selection basics white paper (Rev. A) 2018年 10月 23日
Application brief Level Shifting Signals With Differential Amplifiers (Rev. A) 2018年 4月 2日
Technical article Accurately measure vital signs with low Iq and a small form factor (Rev. B) PDF | HTML 2018年 3月 28日
Analog Design Journal Getting the most out of your instrumentation amplifier design 2005年 10月 10日

設計與開發

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開發板

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使用指南: PDF
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子卡

BOOSTXL-3PHGANINV — 具有基於分流的直列式馬達相電流感測的 48V 三相逆變器評估模組

The BOOSTXL-3PHGANINV evaluation module features a 48-V/10-A three-phase GaN inverter with precision in-line shunt-based phase current sensing for accurate control of precision drives such as servo drives.
 

MathWorks MATLAB & Simulink example models include the following:

使用指南: PDF
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模擬型號

REF3333 PSpice Model (Rev. A)

SBOM245A.ZIP (36 KB) - PSpice Model
模擬型號

REF3333 TINA-TI Reference Design (Rev. A)

SBOM246A.TSC (107 KB) - TINA-TI Reference Design
模擬型號

REF3333 TINA-TI Spice Model (Rev. A)

SBOM247A.ZIP (6 KB) - TINA-TI Spice Model
模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
參考設計

TIDA-010936 — 適用於整合式馬達驅動的 48V/16A 小型三相 GaN 逆變器參考設計

此參考設計展示了高功率密度 12V 至 60V 3 相功率級,其使用三個 LMG2100R044 100V、35A GaN 半橋,且具有整合式 GaN FET、驅動器和自舉二極體,專為馬達整合式伺服驅動器與機器人應用所設計。  
透過 IN241A 電流感測放大器實現準確的相位電流感測,並且也會測量 DC 鏈路和相位電壓,以驗證 InstaSPIN-FOC™ 等先進的無感測器設計。此設計提供相容於 TI BoosterPack 的 3.3-V I/O 介面,可連接至 C2000™ MCU LaunchPad™ 開發套件或 Sitara™ 微控制器,以便快速輕鬆地評估我們的 GaN 技術。
Design guide: PDF
參考設計

TIDA-00909 — 適用於高速驅動應用的 48V/10A 高頻 PWM 三相 GaN 逆變器參考設計

Low voltage, high-speed drives and/or low inductance brushless motors require higher inverter switching frequencies in the range of 40 kHz to 100 kHz to minimize losses and torque ripple in the motor. The TIDA-00909 reference design achieves that by using a 3-phase inverter with three 80V/10A (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00913 — 具有基於分流直列式馬達相電流感測功能的 48V 三相逆變器參考設計

The TIDA-00913 reference design realizes a 48V/10A 3-phase GaN inverter with precision in-line shunt-based phase current sensing for accurate control of precision drives such as servo drives. One of the largest challenges with in-line shunt-based phase current sensing is the high common-mode (...)
Design guide: PDF
電路圖: PDF
封裝 引腳 下載
SOT-23 (DBZ) 3 檢視選項
SOT-SC70 (DCK) 3 檢視選項

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  • MTBF/FIT 估算值
  • 材料內容
  • 資格摘要
  • 進行中可靠性監測
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