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LM393

現行

雙路差分比較器、商用級

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產品規格表

LM393

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 2 Output type Open-collector, Open-drain Propagation delay time (µs) 1.3 Vs (max) (V) 36 Vs (min) (V) 2 Vos (offset voltage at 25°C) (max) (mV) 5 Iq per channel (typ) (mA) 0.225 Input bias current (±) (max) (nA) 50 Rail-to-rail In to V- Rating Catalog Operating temperature range (°C) 0 to 70 Features Standard comparator VICR (max) (V) 34.5 VICR (min) (V) 0
Number of channels 2 Output type Open-collector, Open-drain Propagation delay time (µs) 1.3 Vs (max) (V) 36 Vs (min) (V) 2 Vos (offset voltage at 25°C) (max) (mV) 5 Iq per channel (typ) (mA) 0.225 Input bias current (±) (max) (nA) 50 Rail-to-rail In to V- Rating Catalog Operating temperature range (°C) 0 to 70 Features Standard comparator VICR (max) (V) 34.5 VICR (min) (V) 0
PDIP (P) 8 92.5083 mm² 9.81 x 9.43 SOIC (D) 8 29.4 mm² 4.9 x 6 SOP (PS) 8 48.36 mm² 6.2 x 7.8 TSSOP (PW) 8 19.2 mm² 3 x 6.4 VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • NEW LM393B and LM2903B
  • Improved specifications of B-version
    • Maximum rating: up to 38 V
    • ESD rating (HBM): 2k V
    • Low input offset: 0.37 mV
    • Low input bias current: 3.5 nA
    • Low supply-current: 200 µA per comparator
    • Faster response time of 1 µsec
    • Extended temperature range for LM393B
    • Available in tiny 2 x 2mm WSON package
  • B-version is drop-in replacement for LM293, LM393 and LM2903, A and V versions
  • Common-mode input voltage range includes ground
  • Differential input voltage range equal to maximum-rated supply voltage: ±38 V
  • Low output saturation voltage
  • Output compatible with TTL, MOS, and CMOS
  • NEW LM393B and LM2903B
  • Improved specifications of B-version
    • Maximum rating: up to 38 V
    • ESD rating (HBM): 2k V
    • Low input offset: 0.37 mV
    • Low input bias current: 3.5 nA
    • Low supply-current: 200 µA per comparator
    • Faster response time of 1 µsec
    • Extended temperature range for LM393B
    • Available in tiny 2 x 2mm WSON package
  • B-version is drop-in replacement for LM293, LM393 and LM2903, A and V versions
  • Common-mode input voltage range includes ground
  • Differential input voltage range equal to maximum-rated supply voltage: ±38 V
  • Low output saturation voltage
  • Output compatible with TTL, MOS, and CMOS

The LM393B and LM2903B devices are the next generation versions of the industry-standard LM393 and LM2903 comparator family. These next generation B-version comparators feature lower offset voltage, higher supply voltage capability, lower supply current, lower input bias current, lower propagation delay, and improved 2 kV ESD performance and input ruggedness through dedicated ESD clamps. The LM393B and LM2903B can drop-in replace the LM293, LM393 and LM2903, for both "A" and "V" grades.

All devices consist of two independent voltage comparators that are designed to operate from a single power supply over a wide range of voltages. Quiescent current is independent of the supply voltage.

The LM393B and LM2903B devices are the next generation versions of the industry-standard LM393 and LM2903 comparator family. These next generation B-version comparators feature lower offset voltage, higher supply voltage capability, lower supply current, lower input bias current, lower propagation delay, and improved 2 kV ESD performance and input ruggedness through dedicated ESD clamps. The LM393B and LM2903B can drop-in replace the LM293, LM393 and LM2903, for both "A" and "V" grades.

All devices consist of two independent voltage comparators that are designed to operate from a single power supply over a wide range of voltages. Quiescent current is independent of the supply voltage.
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技術文件

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類型 標題 日期
* Data sheet LM393B, LM2903B, LM193, LM293, LM393 and LM2903 Dual Comparators datasheet (Rev. AF) PDF | HTML 2023年 8月 14日
Application note Application Design Guidelines for LM339, LM393, TL331 Family Comparators Including the New B-versions (Rev. D) PDF | HTML 2023年 11月 14日
Technical article Solving top comparator challenges: Negative inputs and phase reversal PDF | HTML 2022年 1月 18日
Technical article Solving top comparator challenges: Violating input common-mode range PDF | HTML 2021年 11月 23日
E-book The Signal e-book: A compendium of blog posts on op amp design topics 2017年 3月 28日
Application note Designing Overcurrent protection for TPL7407L Peripheral Driver 2014年 11月 5日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

模擬型號

LM393 PSpice Model (Rev. B)

SLCJ016B.ZIP (37 KB) - PSpice Model
下載
模擬型號

LM393B TINA-TI SPICE Model (Rev. E)

SLCM004E.ZIP (9 KB) - TINA-TI Spice Model
下載
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 (...)
要求
模擬工具

TINA-TI — 基於 SPICE 的類比模擬程式

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
使用指南: PDF
檢視選項
參考設計

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這套可調式雙級定電流負載參考設計，可協助工程師利用特殊功能及簡易操作來測試電源供應器輸出負載瞬態回應。其電路板爲低電平和高電平提供負載瞬態調整，電壓轉換率可高達 100 A/µs。電路板上還設計了時序調整，如時間週期、延遲和脈衝寬度。
Test report: PDF
參考設計

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This reference design, featuring the DLP Pico™ 0.45-inch WXGA display chipset enables use of HD resolution for projection display applications such as accessory projectors, smart projectors, mobile Smart TV, built in projectors like projection functionality inside notebooks, laptops and hot (...)
Design guide: PDF
電路圖: PDF
參考設計

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This is an isolated, 25W, 0-10V dimmable LED driver design with >0.9 power factor (PF) which meets or exceeds commercial lighting PF and total harmonic distortion (THD) requirements.  It is well suited for integral LED luminaires, or ballasts, that use high-brightness LED emitters.  (...)
Test report: PDF
電路圖: PDF
參考設計

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This is a phase-shifted full-bridge converter reference design capable of delivering 1600 W of isolated output power and achieving efficiency of greater than 96%. This design uses the UCC28950 controller in a dual-phase primary/secondary configuration. An LM5017 constant on-time synchronous buck (...)
Test report: PDF
電路圖: PDF
封裝 引腳 下載
PDIP (P) 8 檢視選項
SOIC (D) 8 檢視選項
SOP (PS) 8 檢視選項
TSSOP (PW) 8 檢視選項
VSSOP (DGK) 8 檢視選項
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