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LP5860 Datasheet(PDF) 19 Page - Texas Instruments

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Part # LP5860
Description  LP5861T 18-Channel High-Current LED Driver with 8-Bit Analog and 8-Bit or 16-Bit PWM Dimming
PDF  71 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LP5860 Datasheet(HTML) 19 Page - Texas Instruments

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8.4 Device Functional Modes
SOFTWARE RESET
STANDBY
UVLO = L AND t > tPOR_H
From all states
RESET = FF
SHUTDOWN
EN = L
From all states
VCC Power Up
Chip_EN = 1 AND t > tCHIP_EN
Chip_EN = 0
NORMAL
THERMAL
SHUTDOWN
TSD=H
TSD=L
HARDWARE POR
EN = H
From all states
UVLO = H
Figure 8-10. Device Functional Modes
• Shutdown: The device enters into shutdown mode from all states on VCC power up or EN pin is low.
• Hardware POR: The device enters into hardware POR when Enable pin is high or VCC fall under VUVF
causing UVLO = H from all states.
• Software reset: The device enters into software reset mode when VCC rise higher than VUVR with the time t >
tPOR_H. In this mode, all the registers are reset. Entry can also be from any state when the RESET (register) =
FFh or UVLO is low.
• Standby: The device enters the standby mode when Chip_EN (register) = 0. In this mode, the device enters
into low power mode, but the I2C/SPI are still available for Chip_EN only and the registers’ data are retained.
• Normal: The device enters the normal mode when 'Chip_EN' = 1 with the time t > tCHIP_EN.
• Thermal shutdown: The device automatically enters the thermal shutdown mode when the junction
temperature exceeds 160°C (typical). If the junction temperature decreases below 145°C (typical), the device
returns to the normal mode.
8.5 Programming
Interface Selection
The LP5861T supports two communication interfaces: I2C and SPI. If IFS is high, it enters into SPI mode. If IFS
is low, it enters into I2C mode.
Table 8-5. Interface Selection
INTERFACE TYPE
ENTRY CONDITION
I2C
IFS = Low
www.ti.com
LP5861T
SNVSCE4 – MAY 2023
Copyright © 2023 Texas Instruments Incorporated
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Product Folder Links: LP5861T



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