TLC6C5912 Datasheet, PDF (1/23 Pages) Texas Instruments – TLC6C5912 12-Channel Shift-Register LED Driver

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TLC6C5912 12-Channel Shift-Register LED Driver
TLC6C5912
SLIS180 – MAY 2016
1 Features
•1 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 or
200-mA PWM Current With Single-Pulse Duration
Less Than 1 ms and Average Current Less Than
50 mA_r
• Thermal Shutdown Protection
• Enhanced Cascading for Multiple Stages
• All Registers Cleared With Single Input
• Low Power Consumption
• Slow Switching Time (t and t_f), Which Helps
Significantly With Reducing EMI
• 20-Pin TSSOP-PW Package
2 Applications
• Appliance Display Panel
• Elevator Display Panel
• PLC Function Indicator
• Seven-Segment Display
3 Description
The TLC6C5912 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.
This device contains a 12-bit serial-in, parallel-out
shift register that feeds a 12-bit D-type storage
register. Separate clocks are provided for both the
shift and storage registers.
Outputs are low-side, open-drain DMOS transistors
with output ratings of 40 V and 50-mA continuous
sink-current OR 200-mA PWM current with single-
pulse duration less than 1 ms and average current
less than 50 mA capabilities when V_CC = 5 V. The
device contains built-in thermal shutdown protection
and provides up to 2000 V of ESD protection when
tested using the human-body model and the 200-V
machine model.
The TLC6C5912 characterization is for operation over
the ambient temperature range of −40°C to 105°C.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TLC6C5912
TSSOP (20)
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
Power Supply
4/3
MCU Serial
Interface
12-Bit Shift Register
4/3
LED Driver
Typical Cascade Topology
Power Supply
12-Bit Shift Register
LED Driver
I/Os
MCU Serial
Interface
4/3 12-Bit Shift-
Register
LED Driver
3 ´ 12 LED Matrix
Typical Scan Topology
Copyright © 2016, Texas Instruments Incorporated
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.