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TPS61196-Q1 Datasheet(PDF) 3 Page - Texas Instruments |
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TPS61196-Q1 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 31 page COMP VDD 1 2 3 4 5 6 7 8 9 10 PGND OVP GDRV ISNS EN PWM3 ISET IFB2 FBP FSW IFB3 IFB1 VIN 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 PWM2 PWM1 IFBV PWM4 PWM5 PWM6 AGND IFB5 IFB4 IFB6 UVLO FAULT REF TPS61196-Q1 www.ti.com SNVSA79 – MARCH 2015 5 Pin Configuration and Functions PWP Package 28-Pin HTSSOP Top View Pin Functions PIN TYPE DESCRIPTION NUMBER NAME Low input voltage lock out. Use a resistor divider from VIN to this pin to set the UVLO 1 UVLO I threshold. 2 EN I Enable and disable pin. EN high = enable, EN low = disable. PWM1 to 3,4,5,6,7,8 I PWM signal input pins. The frequency of PWM signal is in the range of 90 Hz to 22 kHz. PWM6 9 FBP O LED cross-short protection threshold program pin. Use a resistor to GND to set the threshold. Connecting a resistor to the pin programs the IFB pin current level for full brightness (that is, 10 ISET O 100% dimming). 11 IFBV O Minimum feedback voltage setting for LED strings. IFB1 to 12,13,14,15,16,17 I Regulated current sink input pins IFB6 18 AGND G Analog ground Overvoltage protection detection input. Connect a resistor divider from output to this pin to 19 OVP I program the OVP threshold. 20 COMP O Loop compensation for the boost converter. Connect a RC network to make loop stable. Internal reference voltage for the boost converter. Use a capacitor at this pin to adjust the soft 21 REF O start time. When two chips operate in parallel, connect the master's REF pin to the slave's COMP pin. 22 PGND GND External MOSFET current sense ground. 23 ISNS I External MOSFET current sense positive input. 24 GDRV O External switch MOSFET gate driver output. Internal regulator output for device internal power supply. Connect a 1-µF ceramic capacitor to 25 VDD O this pin. Switching frequency setting pin. Use a resistor to set the frequency between 100 kHz to 26 FSW O 800 kHz. An external input voltage above 3.5 V or below 0.5 V disables the internal clock and makes the device as slave device. 27 FAULT O Fault indicator. Open-drain output. Output high impedance when fault conditions happens. 28 VIN I Power supply input pin Copyright © 2015, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: TPS61196-Q1 |
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