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TPS92201A

現行

5-V, 1-A or 1.5-A high-efficiency synchronous buck LED driver with power-save mode

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產品規格表

TPS92201A

現行
產品規格表 立即訂購

產品詳細資料

Input voltage type DC/DC Topology Synchronous Buck Vin (min) (V) 2.5 Vin (max) (V) 5.5 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Iout (max) (A) 1.5 Features Cycle-by-cycle over-current protection, Integrated Switching FET, LED Open Detection, LED Short Detection, Power-save mode, Thermal shutdown Operating temperature range (°C) -55 to 125 Dimming method Analog Number of channels 1 Rating Catalog
Input voltage type DC/DC Topology Synchronous Buck Vin (min) (V) 2.5 Vin (max) (V) 5.5 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Iout (max) (A) 1.5 Features Cycle-by-cycle over-current protection, Integrated Switching FET, LED Open Detection, LED Short Detection, Power-save mode, Thermal shutdown Operating temperature range (°C) -55 to 125 Dimming method Analog Number of channels 1 Rating Catalog
WSON (DRV) 6 4 mm² 2 x 2
  • 2.5-V to 5.5-V input voltage range
  • 1.5-A constant output current
  • Up to 95% efficiency
  • 0.1-µA shutdown current
  • 220-mΩ (HS) / 170-mΩ (LS) MOSFETs
  • Up to 100% switching duty cycle
  • 1.5-MHz switching frequency
  • Force PWM mode for low output ripple (TPS92201)
  • Power save mode for high efficiency in light load (TPS92201A)
  • 0.6-V to VIN output voltage range
  • 100mV feedback regulation voltage
  • 1% to 100% analog dimming with high accuracy
  • 20-kHz to 200-kHz PWM input frequency
  • Internal soft startup
  • Full protection with over current, LED open/short, FB resistor open/short
  • Thermal shutdown protection
  • Available in WSON-6 package
  • 2.5-V to 5.5-V input voltage range
  • 1.5-A constant output current
  • Up to 95% efficiency
  • 0.1-µA shutdown current
  • 220-mΩ (HS) / 170-mΩ (LS) MOSFETs
  • Up to 100% switching duty cycle
  • 1.5-MHz switching frequency
  • Force PWM mode for low output ripple (TPS92201)
  • Power save mode for high efficiency in light load (TPS92201A)
  • 0.6-V to VIN output voltage range
  • 100mV feedback regulation voltage
  • 1% to 100% analog dimming with high accuracy
  • 20-kHz to 200-kHz PWM input frequency
  • Internal soft startup
  • Full protection with over current, LED open/short, FB resistor open/short
  • Thermal shutdown protection
  • Available in WSON-6 package

The TPS92201 is a high-efficiency 1.5-A synchronous buck-type LED driver with 2.5-V to 5.5-V input range. By integrating the high-side and low-side MOSFET, high efficiency and compact solution size can be achieved. The ultra-low 1-µA shutdown current helps saving power in battery-powered applications.

Adaptive off-time with peak current control scheme is adapted in the TPS92201. To get the smallest output ripple, the device operates at typically 1.5-MHz pulse width modulation (PWM) mode in full current range.

Adaptive off-time with peak current control scheme is adapted in the TPS92201A. At medium to heavy load, the device operates in pulse width modulation (PWM) mode with 1.5-MHz switching frequency. At light load, the device automatically enters pulse frequency modulation (PFM) to maintain high efficiency over the entire load current range.

The integrated switches have the capability to deliever up to 1.5-A constant current. Analog dimming is achieved by adjusting the duty cycle of the PWM input with 1% to 100% range. 20kHz to 200kHz input PWM frequency can be supported to avoid audible noise.

For safety and protection, the TPS92201 device implement full protections, including LED open, LED short, FB resistor open, FB resistor short and thermal shutdown.

The TPS92201 is a high-efficiency 1.5-A synchronous buck-type LED driver with 2.5-V to 5.5-V input range. By integrating the high-side and low-side MOSFET, high efficiency and compact solution size can be achieved. The ultra-low 1-µA shutdown current helps saving power in battery-powered applications.

Adaptive off-time with peak current control scheme is adapted in the TPS92201. To get the smallest output ripple, the device operates at typically 1.5-MHz pulse width modulation (PWM) mode in full current range.

Adaptive off-time with peak current control scheme is adapted in the TPS92201A. At medium to heavy load, the device operates in pulse width modulation (PWM) mode with 1.5-MHz switching frequency. At light load, the device automatically enters pulse frequency modulation (PFM) to maintain high efficiency over the entire load current range.

The integrated switches have the capability to deliever up to 1.5-A constant current. Analog dimming is achieved by adjusting the duty cycle of the PWM input with 1% to 100% range. 20kHz to 200kHz input PWM frequency can be supported to avoid audible noise.

For safety and protection, the TPS92201 device implement full protections, including LED open, LED short, FB resistor open, FB resistor short and thermal shutdown.

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* Data sheet TPS92201 1.5-A High Efficiency Synchronous Buck LED Driver datasheet PDF | HTML 2023年 11月 2日

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開發板

TPS92201AEVM — 用於 1-A 至 1.5-A 高效率同步降壓 LED 驅動器的 TPS92201 評估模組

TPS92201AEVM 提供以 TPS92201A 降壓穩壓器為基礎的 LED 驅動器，其設計可在 2.2 V 至 5.5 V 範圍內的輸入電壓運作。針對 3.3 V 和 100% 工作週期 PWM 輸入時的預設輸出電流 0.5A 設定 EVM。TPS92201 可提供高效率、廣泛的調光範圍、優異的線路調整及低輸出漣波 LED 驅動器。
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