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DLPA3005DPFDR 데이터시트(PDF) 4 Page - Texas Instruments

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부품명 DLPA3005DPFDR
상세설명  PMIC and High-Current LED Driver IC
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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
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