TLC6C5912-Q1 Datasheet, PDF (1/26 Pages) Texas Instruments – TLC6C5912-Q1 Power Logic 12-Channel Shift Register LED Driver

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TLC6C5912-Q1
SLIS141C – DECEMBER 2012 – REVISED JULY 2016
TLC6C5912-Q1 Power Logic 12-Channel Shift Register LED Driver
1 Features
•1 Qualified for Automotive Applications
• Wide V_CC Range from 3 V to 5.5 V
• Output Maximum Rating of 40 V
• Twelve Power DMOS Transistor Outputs of
50-mA Continuous Current With V_CC = 5 V
• Thermal Shutdown Protection
• Enhanced Cascading for Multiple Stages
• All Registers Cleared With Single Input
• Low Power Consumption
• Slow Switching Time (t_r and t_f), Which Helps
Significantly With Reducing EMI
• 20-Pin TSSOP-PW Package
• 20-Pin DW Package
2 Applications
• Instrumentation Clusters
• Tell-Tale Lamps
• LED Illumination and Controls
3 Description
The TLC6C5912-Q1 is a monolithic, medium-voltage,
low-current power 12-bit shift register designed for
use in systems that require relatively moderate load
power, such as LEDs.
This device contains a 12-bit serial-in, parallel-out
shift register that feeds a 12-bit D-type storage
register. Data transfers through both the shift and
storage registers on the rising edge of the shift-
register clock (SRCK) and the register clock (RCK),
respectively. The storage register transfers data to
the output buffer when shift register clear (CLR) is
high. A low on CLR clears all registers in the device.
Holding the output enable (G) high holds all data in
the output buffers low, and all drain outputs are off.
Holding G low makes data from the storage register
transparent to the output buffers.
When data in the output buffers is low, the DMOS
transistor outputs are off. When data is high, the
DMOS transistor outputs have sink-current capability.
The serial output (SER OUT) clocks out of the device
on the falling edge of SRCK to provide additional hold
time for cascaded applications. This provides
improved performance for applications where clock
signals may be skewed, devices are not located near
one another, or the system must tolerate
electromagnetic interference. The device contains a
built-in thermal shutdown protection.
Outputs are low-side, open-drain DMOS transistors
with output ratings of 40 V and 50-mA continuous
sink-current capabilities when V_CC = 5 V. The current
limit decreases as the junction temperature increases
for additional device protection. The device also
provides up to 2000 V of ESD protection when tested
using the human-body model and 200 V when tested
using the machine model.
The TLC6C5912-Q1 characterization is for operation
over the operating ambient temperature range of
−40°C to 125°C.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TLC6C5912-Q1
SOIC (20)
TSSOP (20)
12.80 mm × 7.50 mm
6.50 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application Schematic
Battery 9 V–40 V
4/3
MCU Serial I/F
30 mA
30 mA
12-Bit Shift Register
LED Driver
1
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.