TI-TLC6A598.pdf
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TLC6A598 Automotive Power Logic 8-Bit Shift Register
1 Features
• High reliability and robustness for avionics
application
• AEC-Q100 qualified for automotive applications:
– Device temperature grade 1: –40ºC to +125ºC,
T
A
– HBM ESD classification level 3A
– CDM ESD classification level C6
• Wide operating ambient temperature: –55ºC to
+125ºC
• Wide V
CC
from 3 V to 5.5 V
• Eight power DMOS transistor output channels
– 350-mA continuous current
– 1.1-A current limit capability
– Output clamp voltage, 50 V
– Low R
ds(on)
, 1 Ω (typical)
– Avalance energy, 90 mJ (maximum)
• Protection
– Overcurrent protection
– Open and short load detection
– Serial-interface communication-error detection
– Thermal shutdown protection
• Enhanced cascading for multiple stages
• All registers cleared with single input
• Cyclic redundancy check (CRC)
• Low power consumption
• 24-pin SOIC DW package
2 Applications
• Flight control system
• PLC control and function indicator
• Instrumentation cluster
• Relay or solenoids drivers
• Appliance display panel
• LED illumination and controls
• Automotive instrument clusters
• Automotive HVAC control panels
3 Description
The TLC6A598 device is a monolithic, high-voltage,
high-current power 8-bit shift register designed for
use in systems that require relatively high load power,
such as LEDs.
The device contains a built-in voltage clamp on the
outputs for inductive transient protection. Power driver
applications include relays, solenoids, and other high-
current or high-voltage loads. Each open-drain DMOS
transistor features an independent chopping current-
limiting circuit to prevent damage in the case of a
short circuit.
This device contains an 8-bit serial-in, parallel-out
shift register that feeds an 8-bit D-type storage
register. Outputs are low-side, open-drain DMOS
transistors with output ratings of 50 V and 350-mA
continuous sink-current capabilities. A built-in load
open or load short diagnostic mechanism provides
enhanced safety protection. The device provides a
cycle redundancy check to verify register values in the
shift registers. In read-back mode, the device provides
6 bits of the CRC remainder. The MCU can read back
the CRC remainder and check if the remainder is
correct to determine whether the communication loop
between MCU and device is good.
The TLC6A598 characterization is for operation over
the operating ambient temperature range of −55°C to
125°C.
Device Information
(1)
PART NUMBER PACKAGE BODY SIZE (NOM)
TLC6A598 SOIC (24)
15.70 mm × 7.50
mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
SRCLR
G
PGND
SRCK
SER IN
RCK
VCC
DRAIN0
DRAIN1
DRAIN2
DRAIN3
DRAIN4
DRAIN5
DRAIN6
DRAIN7
SER OUT
LGND
0.1 μF
5 V
MCU
Power
LEDs
Injectors or
Solenoids
Relays
Typical Application Schematic
TLC6A598
SLIS187A – JUNE 2021 – REVISED OCTOBER 2021
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
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