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LP3958TL/NOPB Datasheet(PDF) 28 Page - Texas Instruments

Part # LP3958TL/NOPB
Description  Lighting Management Unit with High Voltage Boost Converter
PDF  35 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

LP3958TL/NOPB Datasheet(HTML) 28 Page - Texas Instruments

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LP3958
SNVS423C – JANUARY 2006 – REVISED MARCH 2013
www.ti.com
GPIO DATA (07H) – GPIO DATA REGISTER
D7
D6
D5
D4
D3
D2
D1
D0
DATA[2:0]
R - 0
R - 0
R - 0
R - 0
R - 0
RW - 0
RW - 0
RW - 0
DATA[2:0]
Bits 2-0
GPIO data register bits
ENABLES (0BH) – ENABLES REGISTER
D7
D6
D5
D4
D3
D2
D1
D0
NSTBY
EN_BOOST
EN_AUTOLOA
D
R - 0
RW - 0
RW - 0
R - 0
R - 0
RW - 1
R - 0
R - 0
0 – LP3958 standby mode
NSTBY
Bit 6
1 – LP3958 active mode
0 – Boost converter disabled
EN_BOOST
Bit 5
1 – Boost converter enabled
0 – Boost active load disabled
EN_AUTOLOAD
Bit 2
1 – Boost active load enabled
BOOST OUTPUT (0DH) – BOOST OUTPUT VOLTAGE CONTROL REGISTER
D7
D6
D5
D4
D3
D2
D1
D0
BOOST[7:0]
RW - 0
RW - 0
RW - 0
RW - 0
RW - 1
RW - 0
RW - 0
RW - 0
BOOST output voltage adjustment
BOOST[7:0]
Typical boost output voltage (V)
0000 1000
8.00
0000 1001
9.00
0000 1010
10.00
0000 1011
11.00
0000 1100
12.00
0000 1101
13.00
0000 1110
14.00
0000 1111
15.00
0001 0000
16.00
0001 0001
17.00
0001 0010
18.00
PWM ENABLE (2BH) – EXTERNAL PWM CONTROL REGISTER
D7
D6
D5
D4
D3
D2
D1
D0
EN_EXT_K1_P
EN_EXT_K2_P
EN_EXT_K3_P
EN_MAIN_PW
EN_SUB_PWM
WM
WM
WM
M
R - 0
R - 0
R - 0
RW - 0
RW - 0
RW - 0
RW - 0
RW - 0
0 – External PWM control for KEY1 disabled
EN_EXT_K1_PWM
Bit 4
1 – External PWM control for KEY1 enabled
0 – External PWM control for KEY2 disabled
EN_EXT_K2_PWM
Bit 3
1 – External PWM control for KEY2 enabled
0 – External PWM control for KEY3 disabled
EN_EXT_K3_PWM
Bit 2
1 – External PWM control for KEY3 enabled
28
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Product Folder Links: LP3958



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