TPS61193-Q1

FB

PWM

OUT1

OUT2

OUT3

L1

D1

Up to 100 mA/string

SW

LDO

FSET

VDDIO/EN

SYNC

PGND

GND

PAD

VIN

ISET

FAULT

EN

BRIGHTNESS

R1

R2

Brightness (%)

0

10

20

30

40

50

60

70

80

90

100

50

55

60

65

70

75

80

85

90

95

100

D001

VIN=5V

VIN=8V

VIN=12V

VIN=16V

Product

Folder

Sample &

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TPS61193-Q1

SNVSAC7 – OCTOBER 2015

TPS61193-Q1 High-Performance 3-Channel LED Driver for Automotive Lighting

1 Features

2 Applications

Automotive Infotainment, Instrument Clusters, and

1

•

Qualified for Automotive Applications

Backlighting Systems

•

AEC-Q100 Qualified With the Following Results:

–

Device Temperature Grade 1: -40°C to 125°C

3 Description

Ambient Operating Temperature Range

The TPS61193-Q1 is an automotive high-efficiency,

–

Device HBM ESD Classification Level 2

low-EMI, easy-to-use LED driver with integrated DC-

DC converter. DC-DC converter supports both boost

–

Device CDM ESD Classification Level C4B

and SEPIC mode operation. Device has three high-

•

Input Voltage Operating Range 4.5 V to 40 V

precision current sinks that can provide high dimming

•

Three High-Precision Current Sinks

ratio brightness control with a PWM input signal.

–

Current Matching 1% (typical)

The DC-DC converter has adaptive output voltage

–

Output Current up to 100 mA per Channel

control based on the LED current sink headroom

–

Outputs can be combined externally for higher

voltages.

This

feature

minimizes

the

power

consumption by adjusting the voltage to the lowest

current per string

sufficient level in all conditions. DC-DC supports

•

High Dimming Ratio 10 000:1 at 200 Hz

spread spectrum for switching frequency and an

•

Integrated DC-DC for LED String Power

external synchronization with dedicated pin. The high

–

Boost and SEPIC modes supported

switching frequency allows the TPS61193-Q1 to

avoid disturbance for AM radio band.

–

Output Voltage up to 45 V

The input voltage range for the TPS61193-Q1 is from

–

Switching Frequency 300 kHz to 2.2 MHz

4.5 V to 40 V to support automotive stop/start and

•

EMI Minimization

load dump condition. The device supports PWM

–

DC-DC Synchronization Input

brightness dimming ratio 10 000:1 for 200-Hz input

–

Spread Spectrum Option

PWM

frequency.

The

TPS61193-Q1

integrates

extensive fault detection features.

•

Extensive Fault Detection Features

–

Fault Output

Device Information(1)

–

Input Voltage OVP and UVLO

PART NUMBER

PACKAGE

BODY SIZE (NOM)

–

Open and Shorted LED Fault Detection

TPS61193-Q1

HTSSOP (20)

6.50 mm × 4.40 mm

–

Thermal Shutdown

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

•

Minimum Number of External Components

space

space

Simplified Schematic

System Efficiency

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.