TPS61163A Series

Dual-channel WLED drivers for small display

Catalog

Dual-channel WLED drivers for small display

Part	Internal Switch(s)	Applications	Operating Temperature [Max]	Operating Temperature [Min]	Number of Outputs	Current - Output / Channel	Frequency	Supplier Device Package	Type	Topology	Package / Case	Voltage - Output [Max]	Voltage - Output [Min]	Mounting Type	Dimming	Voltage - Supply (Max) [Max]
Texas Instruments TPS61163AYFFR		Backlight	85 °C	-40 °C	2	30 mA	1.2 MHz	9-DSBGA	DC DC Regulator	Step-Up (Boost)	9-UFBGA DSBGA	38 V	2.7 V	Surface Mount	Analog PWM	6.5 V
Texas Instruments TPS61163YFFR		Backlight	85 °C	-40 °C	2	30 mA	1.2 MHz	9-DSBGA	DC DC Regulator	Step-Up (Boost)	9-UFBGA DSBGA	38 V	2.7 V	Surface Mount	Analog PWM	6.5 V

Catalog

Dual-channel WLED drivers for small display

Key Features

• 2.7V to 6.5V input voltageIntegrated 1.5A/40V MOSFET1.2MHz switching frequencyDual current sinks of up to 30mA current each1% typical current matching and accuracyOptional 26.5V/37.5V OVP thresholdTPS61162A: 26.5V OVPTPS61163A: 37.5V OVPAdaptive boost output to WLED voltagesVery low voltage headroom control (90mV)Flexible digital and PWM brightness controlOne-Wire control interface ( EasyScale™)PWM dimming control interfaceUp to 100:1 PWM dimming ratioUp to 9-bit dimming resolutionUp to 90% efficiencyBuilt-in soft startPFM mode at light loadOvervoltage protectionBuilt-in WLED open/short protectionThermal shutdownSupports 4.7µH inductor application2.7V to 6.5V input voltageIntegrated 1.5A/40V MOSFET1.2MHz switching frequencyDual current sinks of up to 30mA current each1% typical current matching and accuracyOptional 26.5V/37.5V OVP thresholdTPS61162A: 26.5V OVPTPS61163A: 37.5V OVPAdaptive boost output to WLED voltagesVery low voltage headroom control (90mV)Flexible digital and PWM brightness controlOne-Wire control interface ( EasyScale™)PWM dimming control interfaceUp to 100:1 PWM dimming ratioUp to 9-bit dimming resolutionUp to 90% efficiencyBuilt-in soft startPFM mode at light loadOvervoltage protectionBuilt-in WLED open/short protectionThermal shutdownSupports 4.7µH inductor application

Description

The TPS61162A and TPS61163A are dual-channel WLED drivers which provide highly integrated solutions for single-cell Li-ion battery powered smart phone backlight. The devices have a built-in high efficiency boost regulator with integrated 1.5A, 40V power MOSFET and support as low as 2.7V input voltage. With two high current-matching capability current sink regulators, the devices can drive up to 10s2p WLED diodes. The boost output can automatically adjust to the WLED forward voltage and allow very low voltage headroom control, thus to improve LED strings efficiency effectively. The TPS61162A and TPS61163A support both the PWM dimming interface and one-wire digital EasyScale™ dimming interface and can realize 9-bit brightness code programming. The TPS61162A and TPS61163A integrate built-in soft start, as well as overvoltage, overcurrent, and thermal shutdown protections. The TPS61162A and TPS61163A are dual-channel WLED drivers which provide highly integrated solutions for single-cell Li-ion battery powered smart phone backlight. The devices have a built-in high efficiency boost regulator with integrated 1.5A, 40V power MOSFET and support as low as 2.7V input voltage. With two high current-matching capability current sink regulators, the devices can drive up to 10s2p WLED diodes. The boost output can automatically adjust to the WLED forward voltage and allow very low voltage headroom control, thus to improve LED strings efficiency effectively. The TPS61162A and TPS61163A support both the PWM dimming interface and one-wire digital EasyScale™ dimming interface and can realize 9-bit brightness code programming. The TPS61162A and TPS61163A integrate built-in soft start, as well as overvoltage, overcurrent, and thermal shutdown protections.