TPS61161

활성

2mm x 2mm WSON 패키지의 디지털 및 PWM 밝기 제어를 지원하는 백색 LED 드라이버

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데이터 시트

document-pdfAcrobat TPS6116x White LED Drivers With Digital and PWM Brightness Control in 2-mm x 2-mm WSON Package datasheet (Rev. E) (영어) PDF | HTML

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신규 TPS923611

활성

0.1% 비율의 PWM 제어 아날로그 조광을 지원하는 30V, 1.8A 동기식 부스트 LED 드라이버 Newer Device with market 1st synchronous boost topology

TPS61161

활성

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제품 상세 정보

Number of channels

1

Vin (min) (V)

2.7

Vin (max) (V)

18

Vout (min) (V)

2.7

Vout (max) (V)

38

Type

Inductive

Switching frequency (max) (kHz)

600

Duty cycle (max) (%)

93

LED current per channel (mA)

20

Peak efficiency (%)

90

Topology

Boost

Features

EasyScale 1-Wire Interface, Load Disconnect During Shutdown

Operating temperature range (°C)

-40 to 85

Rating

Catalog

Number of channels

1

Vin (min) (V)

2.7

Vin (max) (V)

18

Vout (min) (V)

2.7

Vout (max) (V)

38

Type

Inductive

Switching frequency (max) (kHz)

600

Duty cycle (max) (%)

93

LED current per channel (mA)

20

Peak efficiency (%)

90

Topology

Boost

Features

EasyScale 1-Wire Interface, Load Disconnect During Shutdown

Operating temperature range (°C)

-40 to 85

Rating

Catalog

WSON (DRV)

6

4 mm² (2 mm × 2 mm)

2.7-V to 18-V Input Voltage Range
26-V Open LED Protection (TPS61160)
38-V Open LED Protection (TPS61161)
200-mV Reference Voltage With ±2% Accuracy
Flexible Digital and PWM Brightness Control
Built-in Soft Start
Up to 90% Efficiency

2.7-V to 18-V Input Voltage Range
26-V Open LED Protection (TPS61160)
38-V Open LED Protection (TPS61161)
200-mV Reference Voltage With ±2% Accuracy
Flexible Digital and PWM Brightness Control
Built-in Soft Start
Up to 90% Efficiency

With a 40-V rated integrated switch FET, the TPS61160 and TPS61161 are boost converters that drive LEDs in series. The boost converters run at 600-kHz fixed switching frequency to reduce output ripple, improve conversion efficiency, and allow for the use of small external components.

The default white LED current is set with the external sensor resistor R_SET, and the feedback voltage is regulated to 200 mV, as shown in the . During the operation, the LED current can be controlled using the one-wire digital interface (EasyScale protocol) through the CTRL pin. Alternatively, a pulse width modulation (PWM) signal can be applied to the CTRL pin through which the duty cycle determines the feedback reference voltage. In either digital or PWM mode, the TPS61160 and TPS61161 do not burst the LED current; therefore, they do not generate audible noises on the output capacitor. For maximum protection, the device features integrated open LED protection that disable the TPS61160 and/or TPS61161 to prevent the output voltage from exceeding the device's absolute maximum voltage ratings during open LED conditions.

The TPS61160 and TPS61161 are available in a space-saving, 2-mm × 2-mm WSON package with thermal pad.

For all available packages, see the orderable addendum at the end of the data sheet.

With a 40-V rated integrated switch FET, the TPS61160 and TPS61161 are boost converters that drive LEDs in series. The boost converters run at 600-kHz fixed switching frequency to reduce output ripple, improve conversion efficiency, and allow for the use of small external components.

The default white LED current is set with the external sensor resistor R_SET, and the feedback voltage is regulated to 200 mV, as shown in the . During the operation, the LED current can be controlled using the one-wire digital interface (EasyScale protocol) through the CTRL pin. Alternatively, a pulse width modulation (PWM) signal can be applied to the CTRL pin through which the duty cycle determines the feedback reference voltage. In either digital or PWM mode, the TPS61160 and TPS61161 do not burst the LED current; therefore, they do not generate audible noises on the output capacitor. For maximum protection, the device features integrated open LED protection that disable the TPS61160 and/or TPS61161 to prevent the output voltage from exceeding the device's absolute maximum voltage ratings during open LED conditions.

The TPS61160 and TPS61161 are available in a space-saving, 2-mm × 2-mm WSON package with thermal pad.

For all available packages, see the orderable addendum at the end of the data sheet.

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12개 모두 보기

상위 문서	유형	직함	형식 옵션
*	데이터 시트	TPS6116x White LED Drivers With Digital and PWM Brightness Control in 2-mm x 2-mm WSON Package datasheet (Rev. E)	PDF \| HTML	2016. 7. 14
	백서	Common LED Functions and LED Driver Design Considerations		2020. 9. 21
	애플리케이션 노트	Some Guidelines and Tips for the LED Driver Application		2019. 8. 14
	애플리케이션 노트	Performing Accurate PFM Mode Efficiency Measurements (Rev. A)		2018. 12. 11
	선택 가이드	Power Management Guide 2018 (Rev. R)		2018. 6. 25
	애플리케이션 노트	Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B)		2017. 11. 29
	애플리케이션 노트	Extending the Soft Start Time Without a Soft Start Pin (Rev. B)		2017. 6. 15
	애플리케이션 노트	Simple Backlight Driver Dimming Performance		2017. 3. 20
	애플리케이션 노트	Analog PWM Dimming in White-LED Drivers		2016. 12. 21
	애플리케이션 노트	Inductor Selection in Boost Converters for LCD Backlight Applications		2016. 10. 24
	애플리케이션 노트	Schottky Diode Selection in Asynchronous Boost Converters		2016. 9. 6
	애플리케이션 노트	How to Use Analog Dimming With TPS6116x		2011. 8. 5

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평가 보드

TPS61161EVM-243 — TPS61161EVM-243 평가 모듈

The TPS61161EVM-243 facilitates evaluation of the TPS61161 White LED Driver with Digital and PWM Brightness Control. With its 40 V rated integrated switch FET, the TPS61161 is a boost converter to drive up to 10 LEDs in series. The boost converter runs at 600 kHz fixed switching (...)

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지원 소프트웨어

TPS6116XEVM-SW — TPS6116x 평가 모듈용 소프트웨어

The TPS6116xEVM-SW software provides a software interface for the TPS6116x/70 EVM boards. Use this software to change the TPS6116x IC register via the USB Interface Adapter.

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