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TPS923610

現行

具有 0.1% 比率 PWM 控制類比調光的 24.5V、1.8A 同步升壓 LED 驅動器

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產品規格表

TPS923610

現行
產品規格表 立即訂購

產品詳細資料

Topology Boost Vin (min) (V) 2.5 Vin (max) (V) 5.5 Vout (max) (V) 24.5 Vout (min) (V) 5 Iq (typ) (mA) 0.26 Features OVP, Over Current Protection, PWM control, Synchronous, Thermal shutdown, Under voltage lock out Operating temperature range (°C) -40 to 125 Dimming method Analog Number of channels 1 Rating Catalog
Topology Boost Vin (min) (V) 2.5 Vin (max) (V) 5.5 Vout (max) (V) 24.5 Vout (min) (V) 5 Iq (typ) (mA) 0.26 Features OVP, Over Current Protection, PWM control, Synchronous, Thermal shutdown, Under voltage lock out Operating temperature range (°C) -40 to 125 Dimming method Analog Number of channels 1 Rating Catalog
SOT-5X3 (DRL) 6 2.56 mm² 1.6 x 1.6
  • 2.5V to 5.5V input voltage
  • Integrated 280mΩ/600mΩ LS/HS switch FETs
  • Up to 95% efficiency
  • 130nA ultra-low shutdown current
  • High-accuracy PWM controlled analog dimming down to 0.1% dimming ratio
  • Drives LED string up to
    • 24.5V for TPS923610
    • 30V for TPS923611 and TPS923612
  • Switch current limit
    • 1.8A for TPS923610 and TPS923611
    • 2.25A for TPS923612
  • FCCM with 1.1MHz/400KHz switching frequency options
  • 200mV feedback voltage
  • Internal compensation
  • Protection Features
    • Over-voltage protection
    • Over-current protection
    • Under-voltage lockout protection
    • Thermal shutdown
  • 2.5V to 5.5V input voltage
  • Integrated 280mΩ/600mΩ LS/HS switch FETs
  • Up to 95% efficiency
  • 130nA ultra-low shutdown current
  • High-accuracy PWM controlled analog dimming down to 0.1% dimming ratio
  • Drives LED string up to
    • 24.5V for TPS923610
    • 30V for TPS923611 and TPS923612
  • Switch current limit
    • 1.8A for TPS923610 and TPS923611
    • 2.25A for TPS923612
  • FCCM with 1.1MHz/400KHz switching frequency options
  • 200mV feedback voltage
  • Internal compensation
  • Protection Features
    • Over-voltage protection
    • Over-current protection
    • Under-voltage lockout protection
    • Thermal shutdown

The TPS923610/1/2 is a synchronous boost LED driver that integrates both low-side and high-side switch FETs. It features an ultra-low 130nA shutdown current. The TPS923610/1/2 can drive single or parallel LED strings for LCD back lighting and general illumination.

The feedback voltage is regulated to 200mV and the output current is set by an external sensor resistor, RSET, as shown in the Simplified Schematic. During operation, a PWM signal applied to ADIM pin adjusts the feedback voltage proportionally to the PWM duty cycle, enabling precise analog dimming. The TPS923610/1/2 supports PWM controlled analog dimming with ratio as low as 0.1%, along with FCCM operation, avoiding audible noises at the output since current modulation remains purely analog.

The TPS923610/1/2 integrates over-voltage protection that disables the power stage to prevent the output voltage from exceeding the absolute maximum voltage rating during LED open conditions. The TPS923610/1/2 also provides over-current protection, under-voltage lockout protection and thermal shutdown protection.

The TPS923610/1/2 is a synchronous boost LED driver that integrates both low-side and high-side switch FETs. It features an ultra-low 130nA shutdown current. The TPS923610/1/2 can drive single or parallel LED strings for LCD back lighting and general illumination.

The feedback voltage is regulated to 200mV and the output current is set by an external sensor resistor, RSET, as shown in the Simplified Schematic. During operation, a PWM signal applied to ADIM pin adjusts the feedback voltage proportionally to the PWM duty cycle, enabling precise analog dimming. The TPS923610/1/2 supports PWM controlled analog dimming with ratio as low as 0.1%, along with FCCM operation, avoiding audible noises at the output since current modulation remains purely analog.

The TPS923610/1/2 integrates over-voltage protection that disables the power stage to prevent the output voltage from exceeding the absolute maximum voltage rating during LED open conditions. The TPS923610/1/2 also provides over-current protection, under-voltage lockout protection and thermal shutdown protection.
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類型 標題 日期
* Data sheet TPS923610/1/2 30V Synchronous Boost LED Driver with Ultra-low Shutdown Current and 0.1%-ratio PWM Controlled Analog Dimming datasheet (Rev. A) PDF | HTML 2025年 10月 28日
Certificate TPS923610EVM EU Declaration of Conformity (DoC) 2025年 10月 10日

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開發板

TPS923610EVM — TPS923610 評估模組

德州儀器 TPS923610EVM 評估模組（EVM）可協助設計人員評估同步升壓型 LED（發光二極體）驅動器 TPS923610 的運作與效能。TPS923610EVM 可在 2.5V 至 5.5V 輸入（額定值 3.6V）下運作，並可透過跳線提供預設 60mA 的定電流，以驅動板載 LED 燈串或外部 LED 負載。
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