TLD2141-3EP
LITIX™ Basic+
Features
•
Triple channel device with integrated and protected output stages
(current sources), optimized to drive LEDs as additional low cost current
source
High output current (up to 80 mA) per channel
Very low current consumption in sleep mode
Very low output leakage when channel is “off”
Low current consumption during fault
Additional output current demand supported by LITIX™ Companion direct drive without additional
components
Intelligent fault management: up to 16 and more devices can share a common error network with only one
external resistor
Reverse polarity protection allows reduction of external components and improves system performance
at low battery/input voltages
Overload protection
Wide temperature range: -40°C <
T
J
< 150°C
Output current control via external low power resistor
Green product (RoHS compliant)
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•
•
•
•
•
•
•
•
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Potential applications
•
•
•
•
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•
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Cost effective “stop”/ “tail” function implementation with shared and separated LEDs per function
Turn indicators
Position, fog, rear lights and side markers
Animated light functions like wiping indicators and “welcome/goodbye” functions
Day Running Light
Interior lighting functions like ambient lighting (including RGB color control), illumination and dash board
lighting
LED indicators for industrial applications and instrumentation
Product validation
Qualified for Automotive Applications. Product Validation according to AEC-Q100/101.
Datasheet
www.infineon.com
1
Rev. 1.00
2018-10-09
TLD2141-3EP
LITIX™ Basic+
Description
The LITIX™ Basic+ TLD2141-3EP is a triple channel high-side driver IC with integrated output stages. It is
designed to control LEDs with a current up to 80 mA. In typical automotive applications the device is capable
of driving 3 red LEDs per chain (total 9 LEDs) with a current up to 60 mA and even above, if not limited by the
overall system thermal properties. Practically, the output current is controlled by an external resistor or
reference source, independently from load and supply voltage changes.
Table 1
Parameter
Operating voltage
Maximum voltage
Nominal output (load) current
Product summary
Symbol
V
S(nom)
V
S(max)
V
OUTx(max)
I
OUTx(nom)
Values
5.5 V … 40 V
40 V
60 mA (nominal) when using the automotive
supply voltage range 8 V - 18 V. Currents up to
I
OUTx(max)
are possible with low thermal resistance
R
thJA
80 mA depending on
R
thJA
300±4.33%
0.1 µA
850 µA or less when fault is detected from another
device (disabled via ERRN)
Marking
TLD2141
Maximum output (load) current
Current accuracy at
R
SET
= 10 kΩ
Current consumption in sleep mode
I
OUTx(max)
K
LTx
I
S(sleep, typ)
Maximum current consumption during
I
S(fault, ERRN)
fault
Type
TLD2141-3EP
Package
PG-TSDSO-14
Datasheet
2
Rev. 1.00
2018-10-09
TLD2141-3EP
LITIX™ Basic+
Table of Contents
1
2
2.1
2.2
3
3.1
3.2
3.3
4
4.1
4.2
5
5.1
5.1.1
5.1.2
5.2
5.2.1
5.2.2
5.2.3
5.2.4
5.2.5
5.2.6
5.2.7
5.3
5.4
6
6.1
6.1.1
6.1.2
6.2
6.2.1
6.2.2
6.3
7
7.1
7.2
7.3
7.4
8
9
10
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin definitions and functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
General product characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
7
8
9
Internal supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical characteristics internal supply and EN pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Power stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reverse battery protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output configuration via IN_SET, OUT_SET and PWMI pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IN_SET pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output current adjustment via
R
SET
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output control via IN_SET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IN_SET pin behavior during device fault management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OUT_SET pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Direct control of PWMI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Timing diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical characteristics power stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical characteristics IN_SET, OUT_SET and PWMI pins for output settings . . . . . . . . . . . . . . . . .
Load diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Error management via ERRN and D-pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ERRN pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D-pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Open Load (OL) and short OUTx to GND (SC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fault management (D-pin open or connected with a capacitor to GND) . . . . . . . . . . . . . . . . . . . . .
Fault management (D-pin connected to GND) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical characteristics: Load diagnosis and Overload management . . . . . . . . . . . . . . . . . . . . . . . . .
PWM control (Digital dimming) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PWM unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Direct control of PWMI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Timing diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical characteristics PWM engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14
14
14
15
15
15
15
16
17
17
18
18
20
22
24
24
24
26
27
27
29
31
33
33
34
35
36
Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Datasheet
3
Rev. 1.00
2018-10-09
TLD2141-3EP
LITIX™ Basic+
Block diagram
1
Block diagram
10
VS
ERRN
9
7
EN/DEN
D
Internal
supply
Output
control
&
protection
14
Thermal
protection
6
5
4
OUT3
OUT2
OUT1
11
PWMI
PWM_SET
PWM_RST
IN_SET
12
PWM
engine
Current
reference
GND
8
13
PWMO
OUT_SET
1
3
2
TLD2141-3EP
Figure 1
Block diagram
Datasheet
4
Rev. 1.00
2018-10-09
TLD2141-3EP
LITIX™ Basic+
Pin configuration
2
2.1
Pin configuration
Pin assignment
PWMO
OUT_SET
IN_SET
PWM_RST
PWM_SET
PWMI
D
1
14
2
13
3
12
EP
4
11
5
10
6
9
exposed pad (bottom)
7
8
TLD2141-3EP
ERRN
OUT1
OUT2
OUT3
VS
EN/DEN
GND
Figure 2
Pin configuration
2.2
Pin
10
8
3
Pin definitions and functions
Symbol
VS
GND
IN_SET
Function
Supply voltage;
Connected to battery or supply control switch, with EMC
filter
Ground;
Signal ground
Control input for OUT channels;
Connect to a low power resistor to adjust
OUT output currents. Alternatively, a different current reference (i.e. the
OUT_SET of another LITIX™ Basic+ LED Driver) may be connected
Control output for additional current source;
If an additional channel or
output current with same input control is needed, connect this pin to the
IN_SET pin of the additional LED driver. If not used, leave the pin open
PWM input;
Connect to an external PWM controller or a ceramic capacitor
(when internal PWM engine is intended to be used). If not used, connect to
GND
PWM output;
Buffered PWMI logic state. Used to drive additional devices with
same timing as PWMI. If not used, leave the pin open
PWM duty cycle reset input;
Connect to a low power resistor to adjust PWM
frequency and duty cycle. If the internal PWM engine is not used (direct PWMI
drive) it should be left open
PWM duty cycle set input;
Connect to a low power resistor to adjust PWM
frequency and duty cycle. If the internal PWM engine is not used (direct PWMI
drive) it should be left open
Disable/delay error input;
Connect to a capacitor, leave open or connect to
GND, depending on the required diagnosis management (see
Chapter 6
for
further details)
5
Rev. 1.00
2018-10-09
2
OUT_SET
6
PWMI
1
4
PWMO
PWM_RST
5
PWM_SET
7
D
Datasheet
Power technology
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