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) 32 Vs (min) (V) 2 Rating Automotive Iq per channel (typ) (mA) 0.4 Vos (offset voltage at 25°C) (max) (mV) 7 Rail-to-rail In to V- Operating temperature range (°C) -40 to 125 Input bias current (±) (max) (nA) 50 VICR (max) (V) 30.5 VICR (min) (V) 0
Number of channels 2 Output type Open-collector, Open-drain Propagation delay time (µs) 1.3 Vs (max) (V) 32 Vs (min) (V) 2 Rating Automotive Iq per channel (typ) (mA) 0.4 Vos (offset voltage at 25°C) (max) (mV) 7 Rail-to-rail In to V- Operating temperature range (°C) -40 to 125 Input bias current (±) (max) (nA) 50 VICR (max) (V) 30.5 VICR (min) (V) 0
SOIC (D) 8 29.4 mm² (4.9 mm × 6 mm) TSSOP (PW) 8 19.2 mm² (3 mm × 6.4 mm)
  • NEW LM393B and LM2903B
  • Improved specifications of B-version
    • Maximum rating: up to 38V
    • ESD rating (HBM): 2kV
    • Low input offset: 0.37mV
    • Low input bias current: 3.5nA
    • Low supply-current: 200µA per comparator
    • Faster response time of 1µsec
    • 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 38V
    • ESD rating (HBM): 2kV
    • Low input offset: 0.37mV
    • Low input bias current: 3.5nA
    • Low supply-current: 200µA per comparator
    • Faster response time of 1µsec
    • 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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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 LM393B, LM2903B, LM193, LM293, LM393 and LM2903 Dual Comparators datasheet (Rev. AH) PDF | HTML 2025/4/30
電子書 The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 2017/3/28

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AMP-PDK-EVM — 放大器性能開發套件評估模組

放大器性能開發套件 (PDK) 是一款評估模組 (EVM) 套件,可測試通用運算放大器 (op amp) 參數,並與大多數運算放大器和比較器相容。EVM 套件提供主板和多個插槽式子卡選項,可滿足封裝需求,使工程師能夠快速評估和驗證裝置性能。

AMP-PDK-EVM 套件支援五種最熱門的業界標準封裝,包括:

  • D (SOIC-8 和 SOIC-14)
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  • DCK (SC70-5 和 SC70-6)
使用指南: PDF | HTML
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參考設計

PMP30189 — 24V、300W 同步降壓參考設計

PMP30189 參考設計基於 LM5117 同步降壓轉換器,可提供 24V @ 11A 輸出,並具備 13.9A 過電流保護功能。內部偏壓可透過內建線性穩壓器供電,或由外部雙極性接面電晶體 (BJT) 與齊納二極體供電,從而降低 LM5117 的功率損耗。切換頻率也可在 100KHz 和 250KHz 之間選擇。外部追蹤輸入可用於執行排序及緩啟動追蹤。該設計還具備鎖存式輸出過電壓保護功能。
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PMP30301 — 12V、80W 同步降壓參考設計

PMP30301 參考設計基於 LM5117 同步降壓轉換器,可提供 12V @ 6.5A 輸出,並具備 7.4A 過電流保護功能。內部偏壓可透過內建線性穩壓器供電,或由外部雙極性接面電晶體 (BJT) 與齊納二極體供電,從而降低 LM5117-Q1 的功率損耗。切換頻率也可在 100KHz 和 250KHz 之間選擇。外部追蹤輸入可用於執行排序及緩啟動追蹤。該設計還具備鎖存式輸出過電壓保護功能。
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SOIC (D) 8 Ultra Librarian
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