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TPS61166

現行

含整合式電源二極體和快速脈衝調光模式的白光 LED 驅動器

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產品規格表

TPS61166

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 1 Vin (min) (V) 2.5 Vin (max) (V) 10 Vout (min) (V) 2.5 Vout (max) (V) 17 Type Inductive Switching frequency (max) (kHz) 1400 Duty cycle (max) (%) 93 LED current per channel (mA) 400 Peak efficiency (%) 85 Topology Boost Features EasyScale 1-Wire Interface, OVP Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 1 Vin (min) (V) 2.5 Vin (max) (V) 10 Vout (min) (V) 2.5 Vout (max) (V) 17 Type Inductive Switching frequency (max) (kHz) 1400 Duty cycle (max) (%) 93 LED current per channel (mA) 400 Peak efficiency (%) 85 Topology Boost Features EasyScale 1-Wire Interface, OVP Operating temperature range (°C) -40 to 85 Rating Catalog
WSON (DSK) 10 6.25 mm² 2.5 x 2.5
  • IC Supply Range: 2.5-V to 6-V
  • Power Stage Input Range: 4.5-V to 10-V
  • Integrated 1.1-A / 20-V Internal Switch FET and Power Diode
  • Drive up to 5 LEDs in Series
  • Fast on/off LED Current Within 1-µs in Brightness Dimming
  • Burst PWM Dimming Method With Frequency Range From 60-Hz to 40-kHz
  • Built-in Soft Start-up
  • Over Load Protection
  • Over Voltage Protection
  • 2.5 × 2.5 × 0.8 mm SON Package
  • APPLICATIONS
    • Small Form Factor LCD Backlight
    • Mobile Phone
    • Digital Camera
    • Personal Camcorder
    • Single Lens Reflex
  • IC Supply Range: 2.5-V to 6-V
  • Power Stage Input Range: 4.5-V to 10-V
  • Integrated 1.1-A / 20-V Internal Switch FET and Power Diode
  • Drive up to 5 LEDs in Series
  • Fast on/off LED Current Within 1-µs in Brightness Dimming
  • Burst PWM Dimming Method With Frequency Range From 60-Hz to 40-kHz
  • Built-in Soft Start-up
  • Over Load Protection
  • Over Voltage Protection
  • 2.5 × 2.5 × 0.8 mm SON Package
  • APPLICATIONS
    • Small Form Factor LCD Backlight
    • Mobile Phone
    • Digital Camera
    • Personal Camcorder
    • Single Lens Reflex

The TPS61166 is a boost converter with a 20-V rated integrated switch FET and power diode that drives up to 5 LEDs in series. This device integrates a high side switch FET that can turn on/off the LED current within 1-µs of the applied external PWM signal. The high side switch also provides input-to-output isolation during IC shutdown.

The default white LED current is set with the external sensor resistor R1, and the feedback voltage is regulated to 200-mV, as shown in the typical application circuit. The LED current can be adjusted using a pulse width modulation (PWM) signal through the PWM pin. The LED current is synchronized to the PWM signal. The device does not discharge the output ceramic capacitor during dimming, thus reducing audible noise when dimming.

Separating the IC input (VIN pin) and power stage input (VBAT pin) makes the device flexible enough to support single- or two-cell Li-ion battery applications. Other protection features include 1.1-A peak-to-peak over current protection (OCP), over voltage protection (OVP), over load protection (OLP), and thermal shutdown. The TPS61166 is available in a 2.5 mm × 2.5 mm SON package with thermal pad.

The TPS61166 is a boost converter with a 20-V rated integrated switch FET and power diode that drives up to 5 LEDs in series. This device integrates a high side switch FET that can turn on/off the LED current within 1-µs of the applied external PWM signal. The high side switch also provides input-to-output isolation during IC shutdown.

The default white LED current is set with the external sensor resistor R1, and the feedback voltage is regulated to 200-mV, as shown in the typical application circuit. The LED current can be adjusted using a pulse width modulation (PWM) signal through the PWM pin. The LED current is synchronized to the PWM signal. The device does not discharge the output ceramic capacitor during dimming, thus reducing audible noise when dimming.

Separating the IC input (VIN pin) and power stage input (VBAT pin) makes the device flexible enough to support single- or two-cell Li-ion battery applications. Other protection features include 1.1-A peak-to-peak over current protection (OCP), over voltage protection (OVP), over load protection (OLP), and thermal shutdown. The TPS61166 is available in a 2.5 mm × 2.5 mm SON package with thermal pad.

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類型 標題 日期
* Data sheet White LED Driver With Integrated Power Diode and Fast Burst Mode Dimming datasheet 2009年 9月 16日
White paper Common LED Functions and LED Driver Design Considerations 2020年 9月 21日
Application note Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018年 12月 11日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
Application note How to Use Analog Dimming With TPS6116x 2011年 8月 5日
User guide TPS61166EVM-446 2009年 10月 29日

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