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DLPA3005DPFDR 데이터시트(PDF) 4 Page - Texas Instruments |
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DLPA3005DPFDR 데이터시트(HTML) 4 Page - Texas Instruments |
4 / 75 page DLPA3005 DLPS071 – OCTOBER 2015 www.ti.com Pin Functions (continued) PIN I/O DESCRIPTION NAME NO. RLIM_1 11 O Connection to LED current sense resistor for CH1 and CH2. RLIM_BOT_K_2 12 I Kelvin sense connection to ground side of LED current sense resistor. RLIM_K_2 13 I Kelvin sense connection to top side of current sense resistor. RLIM_BOT_K_1 14 I Kelvin sense connection to ground side of LED current sense resistor. RLIM_K_1 15 I Kelvin sense connection to top side of current sense resistor. RLIM_1 16 O Connection to LED current sense resistor for CH1 and CH2. CH2_SWITCH 17 I Low-side MOSFET switch for LED cathode. Connect to RGB LED assembly. CH2_SWITCH 18 I Low-side MOSFET switch for LED cathode. Connect to RGB LED assembly. CH1_GATE_CTRL 19 O Gate control of CH1 external MOSFET switch for LED cathode. CH2_GATE_CTRL 20 O Gate control of CH2 external MOSFET switch for LED cathode. CH3_GATE_CTRL 21 O Gate control of CH3 external MOSFET switch for LED cathode. RLIM_2 22 O Connection to LED current sense resistor for CH3. RLIM_2 23 O Connection to LED current sense resistor for CH3. CH3_SWITCH 24 I Low-side MOSFET switch for LED Cathode. Connect to RGB LED assembly. CH3_SWITCH 25 I Low-side MOSFET switch for LED Cathode. Connect to RGB LED assembly. ILLUM_HSIDE_DRIVE 26 O Gate control for external high-side MOSFET for ILLUM Buck converter. ILLUM_LSIDE_DRIVE 27 O Gate control for external low-side MOSFET for ILLUM Buck converter. Supply voltage for high-side N-channel MOSFET gate driver. A 100 nF capacitor (typical) ILLUM_A_BOOST 28 I must be connected between this pin and ILLUM_A_SW. ILLUM_A_FB 29 I Input to the buck converter loop controlling ILED. ILLUM_A_VIN 30 POWER Power input to the ILLUM Driver A. Switch node connection between high-side NFET and low-side NFET. Serves as common ILLUM_A_SW 31 I/O connection for the flying high side FET driver. ILLUM_A_PGND 32 GND Ground connection to the ILLUM Driver A. ILLUM_B_BOOST 33 I Supply voltage for high-side N-channel MOSFET gate driver. ILLUM_B_VIN 34 POWER Power input to the ILLUM driver B. ILLUM_B_FB 35 I Input to the buck converter loop controlling ILED. ILLUM_B_SW 36 I/O Switch node connection between high-side NFET and low-side NFET. ILLUM_B_PGND 37 GND Ground connection to the ILLUM driver B. ILLUM_A_COMP1 38 I/O Connection node for feedback loop components ILLUM_A_COMP2 39 I/O Connection node for feedback loop components ILLUM_B_COMP1 40 I/O Connection node for feedback loop components ILLUM_B_COMP2 41 I/O Connection node for feedback loop components THERMAL_PAD 42 GND Thermal pad. Connect to clean system ground. CLK_OUT 43 O Color wheel clock output CW_SPEED_PWM_OUT 44 O Color wheel PWM output SPI_VIN 45 I Supply for SPI interface SPI_CLK 46 I SPI clock input SPI_MISO 47 O SPI data output SPI_SS_Z 48 I SPI chip select (active low) SPI_MOSI 49 I SPI data input Charge-pump-supply input for the high-side FET gate drive circuit. Connect 100 nF PWR7_BOOST 50 I capacitor between PWR7_BOOST and PWR7_SWITCH pins. PWR7_FB 51 I Converter feedback input. Connect to converter output voltage. PWR7_VIN 52 POWER Power supply input for converter. PWR7_SWITCH 53 I/O Switch node connection between high-side NFET and low-side NFET. PWR7_PGND 54 GND Ground pin. Power ground return for switching circuit. 4 Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated |
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