Model No: TLC6C598QPWRQ1
Texas Instruments TLC6C598QPWRQ1
Manufacturer: Texas Instruments
SEMICON NO.: TLC6C598QPWRQ1
Package: 16-TSSOP
Stock: In stock
Description:LED Driver IC 8 Output Dimming 50mA 40V
SEMICON NO.: TLC6C598QPWRQ1
Package: 16-TSSOP
Stock: In stock
Description:LED Driver IC 8 Output Dimming 50mA 40V
Quantity :
| Mfr | Texas Instruments |
| Device Type | Automotive Power Logic 8-Bit Shift Register LED Driver |
| Architecture | 8-bit D-Type Storage Register |
| Number of Outputs / Channels | 8 |
| Output Type | Low-Side, Open-Drain DMOS Transistor |
| Topology | Open Drain / Shift Register |
| Output Voltage (Max) | 40 V |
| Continuous Output Current (per Channel) | 50 mA |
| Total Current Limit (All Outputs) | 100 mA |
| Supply Voltage Range | 3 V to 5.5 V |
| Dimming Method | PWM |
| Control Interface | Serial-In |
| ESD Protection (HBM) | 2000 V |
| ESD Protection (CDM) | 200 V |
| Output Maximum Rating | 40 V |
| Operating Temperature | –40°C to +125°C |
| Package | 16-TSSOP |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
TLC6C598QPWRQ1 TI AEC-Q100 Automotive Power Logic 8-Bit Shift Register LED Driver
The TLC6C598QPWRQ1 from Texas Instruments is an AEC-Q100 automotive-qualified, monolithic, medium-voltage, low-current power 8-bit shift register LED driver that combines an 8-bit serial-in, parallel-out shift register with an 8-bit D-type storage register feeding eight low-side, open-drain DMOS transistor outputs rated at 40 V and 50 mA continuous current each when VCC = 5 V. Designed for systems requiring moderate load power such as LEDs and resistive loads, it operates from a wide 3 V to 5.5 V logic supply over the −40 °C to +125 °C automotive temperature range, integrates thermal shutdown protection, delivers optimized slow switching times (tr = 210 ns, tf = 128 ns) for significantly reduced EMI, and offers enhanced cascading capability via a SER OUT that clocks on the falling edge of SRCK to provide additional hold time in multi-stage chains.
Highlights / Key Features
● Eight 40 V, 50 mA continuous low-side DMOS open-drain outputs capable of driving LEDs, relays, and resistive loads directly from a 12 V car battery rail, surviving load dump up to 40 V.
● Wide 3 V to 5.5 V VCC range supporting both 3.3 V and 5 V logic rails, an improvement over the 4.5 V to 5.5 V range of the predecessor TPIC6C596.
● Built-in thermal shutdown protection that automatically limits current as junction temperature rises, enhancing system reliability without external components.
● Optimized slow switching times (tr = 210 ns, tf = 128 ns) deliberately slowing output transitions to significantly reduce EMI in automotive applications.
● Enhanced cascading for multiple stages — the serial output (SER OUT) clocks out on the falling edge of SRCK, providing additional hold time for cascaded applications where clock signals may be skewed or devices are physically separated.
● Pin-to-pin compatibility with the TPIC6C596, enabling drop-in upgrades of legacy designs while gaining 40 V drain breakdown (versus 33 V) and the wider supply range.
● Complete 8-bit serial interface with shift-register clock (SRCK), register clock (RCK), serial input, clear (CLR), and output enable (G) requiring only three microcontroller I/O pins to control eight outputs.
Applications
The TLC6C598QPWRQ1 is engineered for automotive and industrial LED illumination and control where moderate load power must be switched from a serial data stream. Typical applications include automotive instrument clusters, tell-tale warning lamps, dashboard backlighting and status indicators, LED signage and display signs, graphic status panels for industrial machines, fault status indicators, LED dot-matrix displays, relay and solenoid drivers, and general resistive-load switching in body-control modules, HVAC controllers, and infotainment subsystems where cascaded shift registers reduce microcontroller I/O count and wiring harness complexity.
Frequently Asked Questions
Q1: What is the difference between the TLC6C598-Q1 and TPIC6C596? The TLC6C598-Q1 is pin-to-pin compatible with the TPIC6C596 but raises the drain breakdown voltage from 33 V to 40 V, widens VCC from 4.5-5.5 V to 3-5.5 V, adds thermal shutdown, reduces quiescent current from 20 µA to 0.1 µA, and optimizes slew rate for lower EMI, while removing the inductive clamp so it cannot drive inductive loads without external clamping circuits.
Q2: Can the TLC6C598QPWRQ1 drive inductive loads such as relays? No — the device removes the output inductive clamp found on the TPIC6C596, so inductive loads require external freewheeling diodes or clamp circuits; it is dedicated to driving LEDs and resistive loads.
Alternative / Replacement LED driver Models
● TLC6C598PWR — Non-automotive industrial version of the same 8-bit shift register LED driver in TSSOP-16 for non-Q1 applications.
● TLC6C5912QPWRQ1 — 12-channel sibling extending the same architecture and 40 V/50 mA outputs to three additional channels for higher LED counts.
● TPIC6C596 — Predecessor power logic 8-bit shift register with 33 V/100 mA outputs and built-in inductive clamp for relay and solenoid driving.
● TLC6C5816-Q1 — 16-bit shift register LED driver adding built-in LED open/short diagnostics for intelligent automotive lighting systems.
● TLC5916 — 8-channel constant-current LED sink driver with programmable current setting, eliminating per-LED resistors in precision-brightness designs.
The TLC6C598QPWRQ1 from Texas Instruments is an AEC-Q100 automotive-qualified, monolithic, medium-voltage, low-current power 8-bit shift register LED driver that combines an 8-bit serial-in, parallel-out shift register with an 8-bit D-type storage register feeding eight low-side, open-drain DMOS transistor outputs rated at 40 V and 50 mA continuous current each when VCC = 5 V. Designed for systems requiring moderate load power such as LEDs and resistive loads, it operates from a wide 3 V to 5.5 V logic supply over the −40 °C to +125 °C automotive temperature range, integrates thermal shutdown protection, delivers optimized slow switching times (tr = 210 ns, tf = 128 ns) for significantly reduced EMI, and offers enhanced cascading capability via a SER OUT that clocks on the falling edge of SRCK to provide additional hold time in multi-stage chains.
Highlights / Key Features
● Eight 40 V, 50 mA continuous low-side DMOS open-drain outputs capable of driving LEDs, relays, and resistive loads directly from a 12 V car battery rail, surviving load dump up to 40 V.
● Wide 3 V to 5.5 V VCC range supporting both 3.3 V and 5 V logic rails, an improvement over the 4.5 V to 5.5 V range of the predecessor TPIC6C596.
● Built-in thermal shutdown protection that automatically limits current as junction temperature rises, enhancing system reliability without external components.
● Optimized slow switching times (tr = 210 ns, tf = 128 ns) deliberately slowing output transitions to significantly reduce EMI in automotive applications.
● Enhanced cascading for multiple stages — the serial output (SER OUT) clocks out on the falling edge of SRCK, providing additional hold time for cascaded applications where clock signals may be skewed or devices are physically separated.
● Pin-to-pin compatibility with the TPIC6C596, enabling drop-in upgrades of legacy designs while gaining 40 V drain breakdown (versus 33 V) and the wider supply range.
● Complete 8-bit serial interface with shift-register clock (SRCK), register clock (RCK), serial input, clear (CLR), and output enable (G) requiring only three microcontroller I/O pins to control eight outputs.
Applications
The TLC6C598QPWRQ1 is engineered for automotive and industrial LED illumination and control where moderate load power must be switched from a serial data stream. Typical applications include automotive instrument clusters, tell-tale warning lamps, dashboard backlighting and status indicators, LED signage and display signs, graphic status panels for industrial machines, fault status indicators, LED dot-matrix displays, relay and solenoid drivers, and general resistive-load switching in body-control modules, HVAC controllers, and infotainment subsystems where cascaded shift registers reduce microcontroller I/O count and wiring harness complexity.
Frequently Asked Questions
Q1: What is the difference between the TLC6C598-Q1 and TPIC6C596? The TLC6C598-Q1 is pin-to-pin compatible with the TPIC6C596 but raises the drain breakdown voltage from 33 V to 40 V, widens VCC from 4.5-5.5 V to 3-5.5 V, adds thermal shutdown, reduces quiescent current from 20 µA to 0.1 µA, and optimizes slew rate for lower EMI, while removing the inductive clamp so it cannot drive inductive loads without external clamping circuits.
Q2: Can the TLC6C598QPWRQ1 drive inductive loads such as relays? No — the device removes the output inductive clamp found on the TPIC6C596, so inductive loads require external freewheeling diodes or clamp circuits; it is dedicated to driving LEDs and resistive loads.
Alternative / Replacement LED driver Models
● TLC6C598PWR — Non-automotive industrial version of the same 8-bit shift register LED driver in TSSOP-16 for non-Q1 applications.
● TLC6C5912QPWRQ1 — 12-channel sibling extending the same architecture and 40 V/50 mA outputs to three additional channels for higher LED counts.
● TPIC6C596 — Predecessor power logic 8-bit shift register with 33 V/100 mA outputs and built-in inductive clamp for relay and solenoid driving.
● TLC6C5816-Q1 — 16-bit shift register LED driver adding built-in LED open/short diagnostics for intelligent automotive lighting systems.
● TLC5916 — 8-channel constant-current LED sink driver with programmable current setting, eliminating per-LED resistors in precision-brightness designs.
