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TPS923612

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TPS923612

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产品详情

Topology Boost Vin (min) (V) 2.5 Vin (max) (V) 5.5 Vout (max) (V) 30 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) 30 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
WSON (DRV) 6 4 mm² (2 mm × 2 mm)
  • 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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* 数据表 TPS923610/1/2 30V Synchronous Boost LED Driver with Ultra-low Shutdown Current and 0.1%-ratio PWM Controlled Analog Dimming 数据表 (Rev. B) PDF | HTML 2026-10-12

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评估板

TPS923612EVM — TPS923612 评估模块

德州仪器 (TI) TPS923612EVM 评估模块 (EVM) 可帮助设计人员评估同步升压 LED（发光二极管）驱动器 TPS923612 的运行情况和性能。TPS923612EVM 的输入电压范围为 2.5V 至 5.5V（额定电压 3.6V），可通过跳线配置为板载 LED 灯串或外部 LED 负载提供默认的 90mA 恒定电流。
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