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LP5860 Datenblatt(PDF) 21 Page - Texas Instruments

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Teilenummer LP5860
Bauteilbeschribung  LP5860 11 횞 18 LED Matrix Driver with 8-bit Analog and 8-/16-bit PWM Dimming
PDF  57 Pages
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Hersteller  TI [Texas Instruments]
Direct Link  http://www.ti.com
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LP5860 Datenblatt(HTML) 21 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 8-13. 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, 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 LP5860 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
LP5860
SNVSBU8 – MAY 2021
Copyright © 2021 Texas Instruments Incorporated
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