Electronic Components Datasheet Search |
|
TPS61176RTER Datasheet(PDF) 1 Page - Texas Instruments |
|
|
TPS61176RTER Datasheet(HTML) 1 Page - Texas Instruments |
1 / 28 page SW PGND OVP VIN ISET L1 4.7uH D1 IFB1 IFB2 IFB3 IFB4 IFB5 IFB6 GND C1 2.2uF C2 4.7uF R1 51k VIN C3 1uF 2.7V ~ 6.5V Up to 38V COMP C4 0.47uF PWM / EN PWM MODE / FAULT R2 1.3M VLDO TPS61176 R3 1M R4 43k TPS61176 www.ti.com SLVSBM5 – DECEMBER 2012 High-Efficiency 6-Channel WLED Driver Supporting Single-Cell Li-Ion Battery Input Check for Samples: TPS61176 1 FEATURES DESCRIPTION The TPS61176 is a highly integrated multi-channel • 2.7V to 6.5V VIN Voltage Range WLED backlight driver for tablet or notebook PCs, • 2.7V to 24V Boost Input Voltage Range which can support single-cell battery input directly. It • Integrated 2A/40V MOSFET comprises a high efficient boost converter with an integrated 2A/40V power MOSFET and six current • 1MHz Switching Frequency sink regulators. In total, the device can drive up to 60 • Adaptive Boost Output to WLED Voltages WLEDs with high current matching performance. In • Six Current Sinks of 35mA Capability Each addition, the boost automatically adjusts its output voltage to the WLED forward voltage to improve • ±2% (Max) Current Accuracy efficiency. • 1.3% (Typ) Current Matching TPS61176 adopts mixed dimming mode. The • Wide PWM Dimming Frequency Range automatic switch between PWM dimming at low – from 100Hz to 22kHz dimming duty cycle and analog dimming at high • Mixed Dimming Mode: Automatic Switch dimming duty cycle increases the overall electrical-to- between Analog Dimming and PWM Dimming optical efficiency, reducing the power budget for backlight remarkably. The switch point can be – Programmable Switch Point: 25% / 12.5% programmed to 12.5% or 25% and the PWM dimming – Programmable PWM Dimming Mode: 22kHz mode can be programmed to fixed frequency PWM Dimming / Direct PWM Dimming dimming or direct PWM dimming. TPS61176 supports • Up to 14-bit Dimming Resolution up to 14-bit dimming resolution, which avoids potential flickering perception during the low • Support down to 1% Dimming Duty Cycle brightness dimming. • Input PWM Glitch Filter By providing a driver for an external isolation P- • Up to 90% Efficiency channel MOSFET, TPS61176 can support true • Driver for Input / Output Isolation PFET for shutdown. When the IC is disabled or the boost True Shutdown output is short to ground, the isolation PFET can be • Built-in Soft Start turned off to cut off the power path from battery to the WLEDs, preventing any leakage current from the • Built-in WLED Open / Short Protection battery. TPS61176 also integrates soft start, WLED • Thermal Shutdown open and short protection and thermal shut down. • Support 4.7µH Inductor TPS61176 is in a 16 pin 3mm x 3mm QFN package, • 16L 3 mm x 3 mm QFN package providing a space-saving and high-performance WLED driver solution. APPLICATIONS TYPICAL APPLICATION • Tablet Backlight • Notebook Backlight • Backlight for Small and Media Form Factor LCD Display with Single-Cell or Multi-Cell Battery Input 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2012, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
Similar Part No. - TPS61176RTER |
|
Similar Description - TPS61176RTER |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |