INFINEON TLD1313EL

Infineon® Basic LED Driver
TLD1313EL
3 Channel High Side Current Source
Data Sheet
Rev. 1.0, 2013-08-08
Automotive
TLD1313EL
1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3
3.1
3.2
Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pin Definitions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4
4.1
4.2
4.3
General Product Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
5.1
5.2
5.3
5.3.1
5.3.2
5.4
EN Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EN Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Internal Supply Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EN Unused . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EN - Pull Up to VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EN - Direct Connection to VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics Internal Supply / EN Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
6.1
6.2
IN_SET Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Output Current Adjustment via RSET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Smart Input Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7
7.1
7.2
7.3
ST Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnosis Selector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnosis Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disable Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18
18
18
18
8
8.1
8.2
8.3
8.4
Load Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Open Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Short Circuit to GND detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Double Fault Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics IN_SET Pin and Load Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20
20
21
23
23
9
9.1
9.1.1
9.1.2
9.2
Power Stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over Load Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reverse Battery Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics Power Stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
25
25
25
25
26
10
10.1
Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Further Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
11
Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
12
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Data Sheet
2
8
8
9
9
10
10
11
12
12
12
13
Rev. 1.0, 2013-08-08
3 Channel High Side Current Source
Basic LED Driver
1
TLD1313EL
Overview
Features
•
•
•
•
•
•
•
•
•
•
•
•
•
3 Channel device with integrated output stages (current sources),
optimized to drive LEDs
Output current up to 120mA per channel
Low current consumption in sleep mode
PWM-operation supported via VS- and EN-pin
Output current adjustable via external low power resistor and
possibility to connect PTC resistor for LED protection during over
temperature conditions
Reverse polarity protection
Overload protection
Undervoltage detection
Open load and short circuit to GND diagnosis
Wide temperature range: -40 °C < Tj < 150 °C
PG-SSOP14 package with exposed heatslug
Green Product (RoHS compliant)
AEC Qualified
PG-SSOP14
Description
The Basic LED Driver TLD1313EL is a three channel high side driver IC with integrated output stages. It is
designed to control LEDs with a current up to 120 mA. In typical automotive applications the device is capable to
drive i.e. 3 red LEDs per chain (total 9 LEDs) with a current up to 60mA, which is limited by thermal cooling
aspects. The output current is controlled practically independent of load and supply voltage changes.
Table 1
Product Summary
VS(nom)
5.5 V… 40 V
VS(max)
40 V
VOUTx(max)
IOUTx(nom) 60 mA when using a supply voltage range of 8V
Operating voltage
Maximum voltage
Nominal output (load) current
- 18V (e.g. Automotive car battery). Currents up
to IOUT(max) possible in applications with low
thermal resistance RthJA
Maximum output (load) current
Output current accuracy at RSET = 12 kΩ
Current consumption in sleep mode
IOUTx(max)
kLT
IS(sleep,typ)
120 mA; depending on thermal resistance RthJA
750 ± 7%
0.1 µA
Type
Package
Marking
TLD1313EL
PG-SSOP14
TLD1313EL
Data Sheet
3
Rev. 1.0, 2013-08-08
TLD1313EL
Overview
Protective functions
- ESD protection
- Under voltage lock out
- Over Load protection
- Over Temperature protection
- Reverse Polarity protection
Diagnostic functions
- OL detection
- SC to Vs (indicated by OL diagnosis)
- SC to GND detection
Applications
Designed for exterior LED lighting applications such as tail/brake light, turn indicator, position light, side marker,...
The device is also well suited for interior LED lighting applications such as ambient lighting, interior illumination
and dash board lighting.
Data Sheet
4
Rev. 1.0, 2013-08-08
TLD1313EL
Block Diagram
2
Block Diagram
VS
Internal
supply
EN
Thermal
protection
Output
control
OUT3
OUT2
OUT1
IN_SET Current
adjust
TLD1313EL
Figure 1
Data Sheet
Status
ST
GND
Basic Block Diagram
5
Rev. 1.0, 2013-08-08
TLD1313EL
Pin Configuration
3
Pin Configuration
3.1
Pin Assignment
Figure 2
Data Sheet
VS
1
VS
2
EN
3
NC
4
NC
14
NC
13
OUT3
12
OUT2
11
OUT1
5
10
ST
IN_SET
6
9
GND
NC
7
8
NC
TLD1313EL
EP
Pin Configuration
6
Rev. 1.0, 2013-08-08
TLD1313EL
Pin Configuration
3.2
Pin Definitions and Functions
Pin
Symbol
Input/
Output
Function
1, 2
VS
–
Supply Voltage; battery supply, connect a decoupling capacitor (100 nF 1 µF) to GND
3
EN
I
Enable pin
4
NC
–
Pin not connected
5
NC
–
Pin not connected
6
IN_SET
I/O
Input / SET pin; Connect a low power resistor to adjust the output current
8
NC
–
Pin not connected
9
GND
–
1)
10
ST
I/O
Status pin
11
OUT1
O
Output 1
12
OUT2
O
Output 2
13
OUT3
O
Output 3
14
NC
–
Pin not connected
–
1)
Exposed
Pad
GND
Ground
Exposed Pad; connect to GND in application
1) Connect all GND-pins together.
Data Sheet
7
Rev. 1.0, 2013-08-08
TLD1313EL
General Product Characteristics
4
General Product Characteristics
4.1
Absolute Maximum Ratings
Absolute Maximum Ratings 1)
Tj = -40 °C to +150 °C; all voltages with respect to ground, positive current flowing into pin for input pins (I), positive
currents flowing out of the I/O and output pins (O) (unless otherwise specified)
Pos.
Parameter
Symbol
Limit Values
Unit
Conditions
Min.
Max.
VS
VEN
VEN(VS)
VEN VOUTx
VOUTx
VPS
-16
40
V
–
-16
40
V
–
VS - 40
VS + 16
V
–
-16
40
V
–
-1
40
V
–
-16
40
V
–
-0.3
6
V
–
-0.3
6
V
–
Voltages
4.1.1
Supply voltage
4.1.2
Input voltage EN
4.1.3
Input voltage EN related to VS
4.1.4
Input voltage EN related to VOUTx
VEN - VOUTx
4.1.5
4.1.6
Output voltage
Power stage voltage
VPS = VS - VOUTx
4.1.7
IN_SET voltage
4.1.8
Status voltage
VIN_SET
VST
4.1.9
IN_SET current
IIN_SET
–
–
2
8
mA
–
Diagnosis output
4.1.10
Output current
IOUTx
–
130
mA
–
Tj
Tstg
-40
150
°C
–
-55
150
°C
–
Currents
Temperatures
4.1.11
Junction temperature
4.1.12
Storage temperature
ESD Susceptibility
4.1.13
ESD resistivity to GND
VESD
-2
2
kV
Human Body
Model (100 pF via
1.5 kΩ)2)
4.1.14
ESD resistivity all pins to GND
-500
500
V
CDM3)
4.1.15
ESD resistivity corner pins to GND
VESD
VESD
-750
750
V
CDM3)
1) Not subject to production test, specified by design
2) ESD susceptibility, Human Body Model “HBM” according to ANSI/ESDA/JEDEC JS-001-2011
3) ESD susceptibility, Charged Device Model “CDM” according to JESD22-C101E
Note: Stresses above the ones listed here may cause permanent damage to the device. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
Note: Integrated protection functions are designed to prevent IC destruction under fault conditions described in the
data sheet. Fault conditions are considered as “outside” normal operating range. Protection functions are
not designed for continuous repetitive operation.
Data Sheet
8
Rev. 1.0, 2013-08-08
TLD1313EL
General Product Characteristics
4.2
Pos.
Functional Range
Parameter
Symbol
Limit Values
Min.
Max.
Unit
Conditions
4.2.16
Supply voltage range for
normal operation
VS(nom)
5.5
40
V
–
4.2.17
Power on reset threshold
VS(POR)
–
5
V
VEN = VS
RSET = 12 kΩ
IOUTx = 80% IOUTx(nom)
VOUTx = 2.5 V
4.2.18
Junction temperature
Tj
-40
150
°C
–
Note: Within the functional range the IC operates as described in the circuit description. The electrical
characteristics are specified within the conditions given in the related electrical characteristics table.
4.3
Pos.
Thermal Resistance
Parameter
4.3.1
Junction to Case
4.3.2
Junction to Ambient 1s0p board
Symbol
RthJC
RthJA1
Limit Values
Min.
Typ.
Max.
–
8
10
–
–
4.3.3
Junction to Ambient 2s2p board
61
56
Unit
Conditions
K/W
1) 2)
K/W
1) 3)
Ta = 85 °C
Ta = 135 °C
–
–
RthJA2
K/W
–
–
45
43
–
–
1) 4)
Ta = 85 °C
Ta = 135 °C
1) Not subject to production test, specified by design. Based on simulation results.
2) Specified RthJC value is simulated at natural convection on a cold plate setup (all pins and the exposed Pad are fixed to
ambient temperature). Ta = 85°C, Total power dissipation 1.5 W.
3) The RthJA values are according to Jedec JESD51-3 at natural convection on 1s0p FR4 board. The product (chip + package)
was simulated on a 76.2 x 114.3 x 1.5 mm3 board with 70µm Cu, 300 mm2 cooling area. Total power dissipation 1.5 W
distributed statically and homogenously over all power stages.
4) The RthJA values are according to Jedec JESD51-5,-7 at natural convection on 2s2p FR4 board. The product (chip +
package) was simulated on a 76.2 x 114.3 x 1.5 mm3 board with 2 inner copper layers (outside 2 x 70 µm Cu, inner 2 x
35µm Cu). Where applicable, a thermal via array under the exposed pad contacted the first inner copper layer. Total power
dissipation 1.5 W distributed statically and homogenously over all power stages.
Data Sheet
9
Rev. 1.0, 2013-08-08
TLD1313EL
EN Pin
5
EN Pin
The EN pin is a dual function pin:
Internal Supply
Output Control
EN
V EN
Figure 3
Block Diagram EN pin
Note: The current consumption at the EN-pin IEN needs to be added to the total device current consumption. The
total current consumption is the sum of the currents at the VS-pin IS and the EN-pin IEN.
5.1
EN Function
If the voltage at the pin EN is below a threshold of VEN(off) the Basic LED Driver IC will enter Sleep mode. In this
state all internal functions are switched off, the current consumption is reduced to IS(sleep). A voltage above VEN(on)
at this pin enables the device after the Power on reset time tPOR.
VS
V EN
IOU T
t
t
tPOR
100%
80%
t
Figure 4
Data Sheet
Power on reset
10
Rev. 1.0, 2013-08-08
TLD1313EL
EN Pin
5.2
Internal Supply Pin
The EN pin can be used to supply the internal logic. There are two typical application conditions, where this feature
can be used:
1) In “DC/DC control Buck” configurations, where the voltage Vs can be below 5.5V.
2) In configurations, where a PWM signal is applied at the Vbatt pin of a light module. The buffer capacitor CBUF is
used to supply the Basic LED Driver IC during Vbatt low (Vs low) periods. This feature can be used to minimize
the turn-on time to the values specified in Pos. 9.2.13. Otherwise, the power-on reset delay time tPOR (Pos. 5.4.7)
has to be considered.
The capacitor can be calculated using the following formula:
I EN ( LS )
C BUF = tLOW ( max ) ⋅ -------------------------------------------------V S – V D1 – V S ( POR )
(1)
See also a typical application drawing in Chapter 10.
VBATT
VS
D1
EN
CBUF
Internal
supply
Thermal
protection
Output
control
OUT3
OUT2
OUT1
IN_SET
RSET
Current
adjust
Basic LED Driver
GND
GND
Figure 5
Data Sheet
External circuit when applying a fast PWM signal on VBATT
11
Rev. 1.0, 2013-08-08
TLD1313EL
EN Pin
V EN
t
V BATT
IOU T
t
tON (VS)
100%
80%
Switch off behavior depends on
V BATT and load characteristics
20%
t
Figure 6
Typical waveforms when applying a fast PWM signal on VBATT
The parameter tON(VS) is defined at Pos. 9.2.13. The parameter tOFF(VS) depends on the load and supply voltage
VBATT characteristics.
5.3
EN Unused
In case of an unused EN pin, there are two different ways to connect it:
5.3.1
EN - Pull Up to VS
The EN pin can be connected with a pull up resistor (e.g. 10 kΩ) to Vs potential. In this configuration the Basic LED
Driver IC is always enabled.
5.3.2
EN - Direct Connection to VS
The EN pin can be connected directly to the VS pin (IC always enabled). This configuration has the advantage
(compared to the configuration described in Chapter 5.3.1) that no additional external component is required.
Data Sheet
12
Rev. 1.0, 2013-08-08
TLD1313EL
EN Pin
5.4
Electrical Characteristics Internal Supply / EN Pin
Electrical Characteristics Internal Supply / EN pin
Unless otherwise specified: VS = 5.5 V to 40 V, Tj = -40 °C to +150 °C, RSET = 12 kΩ all voltages with respect to
ground, positive current flowing into pin for input pins (I), positive currents flowing out of the I/O and output pins
(O) (unless otherwise specified)
Pos.
Parameter
Symbol
5.4.1
Current consumption,
sleep mode
IS(sleep)
5.4.2
Current consumption,
active mode
IS(on)
Limit Values
Min.
Typ.
Max.
–
0.1
2
Current consumption,
device disabled via ST
–
–
–
–
–
–
1.4
0.65
1.4
Current consumption,
IS(dis,IN_SET)
device disabled via IN_SET
mA
–
–
–
1.4
0.7
1.4
Current consumption,
IS(fault,STu)
active mode in single fault
detection condition with STpin unconnected
mA
–
–
–
–
–
–
Data Sheet
1)
mA
–
–
–
5.4.5
µA
1.4
0.75
1.5
IS(dis,ST)
–
–
–
5.4.4
Conditions
mA
–
–
–
5.4.3
Unit
13
1.7
1.1
1.8
VEN = 0.5 V
Tj < 85 °C
VS = 18 V
VOUTx = 3.6 V
2)
IIN_SET = 0 µA
Tj < 105 °C
VS = 18 V
VOUTx = 3.6V
VEN = 5.5 V
VEN = 18 V
1)
REN = 10 kΩ between
VS and EN-pin
2)
VS = 18 V
Tj < 105 °C
VST = 5 V
VEN = 5.5 V
VEN = 18 V
1)
REN = 10 kΩ between
VS and EN-pin
2)
VS = 18 V
Tj < 105 °C
VIN_SET = 5 V
VEN = 5.5 V
VEN = 18 V
1)
REN = 10 kΩ between
VS and EN-pin
2)
VS = 18 V
Tj < 105 °C
RSET = 12 kΩ
VOUTx = 18 V or 0 V
VEN = 5.5 V
VEN = 18 V
1)
REN = 10 kΩ between
VS and EN-pin
Rev. 1.0, 2013-08-08
TLD1313EL
EN Pin
Electrical Characteristics Internal Supply / EN pin (cont’d)
Unless otherwise specified: VS = 5.5 V to 40 V, Tj = -40 °C to +150 °C, RSET = 12 kΩ all voltages with respect to
ground, positive current flowing into pin for input pins (I), positive currents flowing out of the I/O and output pins
(O) (unless otherwise specified)
Pos.
Parameter
Symbol
5.4.6
Current consumption,
IS(fault,STG)
active mode in single fault
detection condition with STpin connected to GND
Limit Values
Min.
Typ.
–
–
–
–
–
–
Unit
Conditions
mA
2)
Max.
VS = 18 V
Tj < 105 °C
RSET = 12 kΩ
VOUTx = 18 V or 0 V
VST = 0 V
VEN = 5.5 V
VEN = 18 V
1)
REN = 10 kΩ between
6.0
4.9
5.9
VS and EN-pin
5.4.7
Power-on reset delay time
3)
tPOR
–
–
25
µs
1)
VOUTx(nom) = 3.6 ± 0.3V
IOUTx = 80% IOUTx(nom)
VEN = 5.5 V
VOUTx = 3 V
IOUTx = 50% IOUTx(nom)
VEN = 5.5 V
VOUTx = 3.6 V
IOUTx ≥ 90% IOUTx(nom)
5.4.8
Required supply voltage for VS(on)
output activation
–
–
4
V
5.4.9
Required supply voltage for VS(CC)
current control
–
–
5.2
V
5.4.10
VEN(on)
EN turn off threshold
VEN(off)
EN input current during low IEN(LS)
–
–
2.5
V
–
0.8
–
–
V
–
–
–
1.8
mA
1)
–
–
–
–
–
–
–
–
0.1
0.1
1.65
0.45
5.4.11
5.4.12
EN turn on threshold
supply voltage
5.4.13
EN high input current
IEN(H)
mA
VS = VEN = 0 → 13.5 V
VS = 4.5 V
Tj < 105 °C
VEN = 5.5 V
Tj < 105 °C
VS = 13.5 V, VEN = 5.5 V
VS = 18 V, VEN = 5.5 V
VS = VEN = 18 V
1)
VS = 18 V, REN = 10 kΩ
between VS and EN-pin
1) Not subject to production test, specified by design
2) The total device current consumption is the sum of the currents IS and IEN(H), please refer to Pos. 5.4.13
3) See also Figure 4
Data Sheet
14
Rev. 1.0, 2013-08-08
TLD1313EL
IN_SET Pin
6
IN_SET Pin
The IN_SET pin is a multiple function pin for output current definition, input and diagnostics:
Logic
IN_SET
high impedance
IIN_SET
VIN_SET
VIN_SET(OL/SC)
GND
Figure 7
Block Diagram IN_SET pin
6.1
Output Current Adjustment via RSET
The output current for all three channels can only be adjusted simultaneously. The current adjustment can be done
by placing a low power resistor (RSET) at the IN_SET pin to ground. The dimensioning of the resistor can be done
using the formula below:
kR SET = ---------I OUT
(2)
The gain factor k (RSET * output current) is specified in Pos. 9.2.4 and Pos. 9.2.5. The current through the RSET is
defined by the resistor itself and the reference voltage VIN_SET(ref), which is applied to the IN_SET during supplied
device.
6.2
Smart Input Pin
The IN_SET pin can be connected via RSET to the open-drain output of a µC or to an external NMOS transistor as
described in Figure 8. This signal can be used to turn off the output stages of the IC. A minimum IN_SET current
of IIN_SET(act) is required to turn on the output stages. This feature is implemented to prevent glimming of LEDs
caused by leakage currents on the IN_SET pin, see Figure 11 for details. In addition, the IN_SET pin offers the
diagnostic feedback information, if the status pin is connected to GND. Another diagnostic possibility is shown in
Figure 9, where the diagnosis information is provided via the ST pin (refer to Chapter 7 and Chapter 8) to a micro
controller. In case of a fault event with the ST pin connected to GND the IN_SET voltage is increased to
VIN_SET(OL/SC) Pos. 8.4.2. Therefore, the device has two voltage domains at the IN_SET-pin, which is shown in
Figure 12.
Data Sheet
15
Rev. 1.0, 2013-08-08
TLD1313EL
IN_SET Pin
Microcontroller
(e.g. XC866)
OUT
RSET/2
RSET/2
IN_SET
Current
adjust
Status
Basic LED Driver
ST
GND
IN
VDDP = 5 V
Figure 8
Schematics IN_SET interface to µC, diagnosis via IN_SET pin
Microcontroller
(e.g. XC866)
OUT
RSET
IN_SET
Current
adjust
Status
Basic LED Driver
ST
GND
IN
VDDP = 5 V
Figure 9
optional
Schematics IN_SET interface to µC, diagnosis via ST pin
The resulting switching times are shown in Figure 10:
IIN_ SET
IOU T
tON (IN_ SET )
tOFF(IN _ SET)
t
100%
80%
20%
t
Figure 10
Data Sheet
Switching times via IN_SET
16
Rev. 1.0, 2013-08-08
TLD1313EL
IN_SET Pin
IOUT [mA]
k = IOUTx * VIN_SET(ref) / IIN_SETx
IOUTx
IIN_SET(ACT)
Figure 11
IIN_SETx
IIN_SET [µA]
IOUT versus IINSET
V IN_ SET
VIN _SET( OL /SC)m ax
Diagnostic voltage range
V IN_ SET(OL /SC) m in
VIN _SET (ref ) m ax
Normal operation and high temperature current
reduction range
Figure 12
Data Sheet
Voltage domains for IN_SET pin, if ST pin is connected to GND
17
Rev. 1.0, 2013-08-08
TLD1313EL
ST Pin
7
ST Pin
The ST pin is a multiple function pin.
IST(OL/SC)
VST(OL/SC)
No fault
Fault
Output Control
ST
No fault
Fault
VST
IST(PD)
Figure 13
Block Diagram ST pin
7.1
Diagnosis Selector
If the status pin is unconnected or connected to GND via a high ohmic resistor (VST to be below VST(L)), the ST pin
acts as diagnosis output pin. In normal operation (device is activated) the ST pin is pulled to GND via the internal
pull down current IST(PD). In case of an open load or short circuit to GND condition the ST pin is switched to
VST(OL/SC) after the open load or short circuit detection filter time (Pos. 8.4.9, Pos. 8.4.12).
If the device is operated in PWM operation via the VS and/or EN pins the ST pin should be connected to GND via
a high ohmic resistor (e.g. 470kΩ) to ensure proper device behavior during fast rising VS and/or EN slopes.
If the ST pin is shorted to GND the diagnostic feedback is performed via the IN_SET-pin, which is shown in
Chapter 6.2 and Chapter 8.
7.2
Diagnosis Output
If the status pin is unconnected or connected to GND via a high ohmic resistor (VST to be below VST(L)), it acts as
a diagnostic output. In case of a fault condition the ST pin rises its voltage to VST(OL/SC) (Pos. 8.4.7). Details are
shown in Chapter 8.
7.3
Disable Input
If an external voltage higher than VST(H) (Pos. 8.4.5) is applied to the ST pin, the device is switched off. This
function is used for applications, where multiple drivers should be used for one light function. It is possible to
combine the drivers’ fault diagnosis via the ST pins. If a single LED chain fails, the entire light function is switched
off. In this scenario e.g. the diagnostic circuit on the body control module can easily distinguish between the two
cases (normal load or load fault), because nearly no current is flowing into the LED module during the fault
scenario - the drivers consume a current of IS(fault,STu) (Pos. 5.4.5) or IS(dis,ST) (Pos. 5.4.3).
As soon as one LED chain fails, the ST-pin of this device is switched to VST(OL/SC). The other devices used for the
same light function can be connected together via the ST pins. This leads to a switch off of all devices connected
together. Application examples are shown in Chapter 10.
Data Sheet
18
Rev. 1.0, 2013-08-08
TLD1313EL
ST Pin
V ST
IOU T
tON (ST)
tOFF( ST)
t
100%
80%
20%
t
Figure 14
Data Sheet
Switching times via ST Pin
19
Rev. 1.0, 2013-08-08
TLD1313EL
Load Diagnosis
8
Load Diagnosis
8.1
Open Load
An open load diagnosis feature is integrated in the TLD1313EL driver IC. If there is an open load on one of the
outputs, the outputs are turned off. The potential on the IN_SET pin rises up to VIN_SET(OL/SC), if the ST is connected
to GND. This high voltage can be used as input signal for an µC as shown in Figure 9. If the ST pin is open or
connected to GND via a high ohmic resistor, the ST pin rises to a high potential as described in Chapter 7. More
details are shown in Figure 18. The open load status is not latched, as soon as the open load condition is no longer
present, the output stage will be turned on again. An open load condition is detected, if the voltage drop over the
output stage VPS is below the threshold according Pos. 8.4.10 and a filter time of tOL is passed.
V IN_ SET
VIN _SET( OL /SC)
VIN_ SET( ref )
tOL
tIN _SET (re se t)
VOU T
t
VS
V S – VPS(OL )
VF
open load
occurs
open load
disappears
t
Figure 15
Data Sheet
IN_SET behavior during open load condition with ST pin connected to GND
20
Rev. 1.0, 2013-08-08
TLD1313EL
Load Diagnosis
VIN _SET
VIN _SET( ref )
t
VST
V ST( OL /SC)
tOL
tIN_ SET(re se t)
VOU T
t
VS
VS – VPS( OL)
VF
open load
occurs
open load
disappears
t
Figure 16
IN_SET and ST behavior during open load condition (ST unconnected)
8.2
Short Circuit to GND detection
The TLD1313EL has an integrated SC to GND detection. If the output stage is turned on and the voltage at the
output falls below VOUT(SC) the potential on the IN_SET pin is increased up to VIN_SET(OL/SC) after tSC, if the ST pin
is connected to GND. If the ST is open or connected to GND via a high ohmic resistor the fault is indicated on the
ST pin according to Chapter 7 after tSC. More details are shown in Figure 18. This condition is not latched. For
detecting a normal condition after a short circuit detection an output current according to IOUT(SC) is driven by the
channel.
Data Sheet
21
Rev. 1.0, 2013-08-08
TLD1313EL
Load Diagnosis
VIN _SET
VIN _SET( OL /SC)
VIN _SET (ref )
VOU T
tSC
t
tIN_ SET( re se t)
VF
VOUT (SC)
t
short circuit
occurs
short circuit
disappears
IN_SET behavior during short circuit to GND condition with ST connected to GND and VDEN >
Figure 17
VDEN(act)
V IN_ SET
V IN_ SET(ref )
t
V ST
VST (OL /SC)
V OU T
tSC
tIN _SET (re se t)
t
VF
V OUT (SC)
t
short circuit
occurs
short circuit
disappears
Figure 18
IN_SET and ST behavior during short circuit to GND condition (ST unconnected)
Data Sheet
22
Rev. 1.0, 2013-08-08
TLD1313EL
Load Diagnosis
Note: In applications, where 1 output of the Basic LED Driver IC is not used, a zener diode can be connected to
the output to avoid unintended open load or short circuit conditions. The zener voltage should be in the range
of the LEDs’ forward voltage.
8.3
Double Fault Conditions
The TLD1313EL has an integrated double fault detection feature. This feature is implemented to detect significant
supply voltage drops. During such supply voltage drops close to the forward voltage of the LEDs the drivers
outputs remain active. In case of load faults on two or more outputs within the time period tOL or tSC (Pos. 8.4.9
and Pos. 8.4.12) the device disables the diagnosis to avoid any uncorrect open load diagnosis during low supply
voltages close to the forward voltages of the connected LED chains. If the faults between two or three channels
happen with a delay of longer than tOL or tSC the double fault detection feature is not active, i.e. the device is not
turned on.
8.4
Electrical Characteristics IN_SET Pin and Load Diagnosis
Electrical Characteristics IN_SET pin and Load Diagnosis
Unless otherwise specified: VS = 5.5 V to 40 V, Tj = -40 °C to +150 °C, RSET = 12 kΩ, all voltages with respect to
ground, positive current flowing into pin for input pins (I), positive currents flowing out of the I/O and output pins
(O) (unless otherwise specified)
Pos.
Parameter
Symbol
Limit Values
Unit
Conditions
1)
Min.
Typ.
Max.
1.19
1.23
1.27
V
–
5.5
V
8.4.1
IN_SET reference
voltage
VIN_SET(ref)
8.4.2
IN_SET open load/short
circuit voltage
VIN_SET(OL/SC) 4
VOUTx = 3.6 V
Tj = 25...115 °C
1)
VS > 8 V
Tj = 25...150 °C
VS = VOUTx (OL) or VOUTx
= 0 V (SC)
8.4.3
IN_SET open load/short
circuit current
IIN_SET(OL/SC) 1.5
–
7.4
mA
1)
VS > 8 V
Tj = 25...150 °C
VIN_SET = 4 V
VS = VOUTx (OL) or VOUTx
= 0 V (SC)
8.4.4
ST device turn on
threshold (active low) in
case of voltage applied
from external (ST-pin
acting as input)
VST(L)
0.8
–
–
V
–
8.4.5
ST device turn off
threshold (active low) in
case of voltage applied
from external (ST-pin
acting as input)
VST(H)
–
–
2.5
V
–
8.4.6
ST pull down current
IST(PD)
–
–
15
µA
VEN = 5.5 V
VST = 0.8 V
Data Sheet
23
Rev. 1.0, 2013-08-08
TLD1313EL
Load Diagnosis
Electrical Characteristics IN_SET pin and Load Diagnosis (cont’d)
Unless otherwise specified: VS = 5.5 V to 40 V, Tj = -40 °C to +150 °C, RSET = 12 kΩ, all voltages with respect to
ground, positive current flowing into pin for input pins (I), positive currents flowing out of the I/O and output pins
(O) (unless otherwise specified)
Pos.
Parameter
Symbol
8.4.7
ST open load/short
circuit voltage (ST-pin
acting as diagnosis
output)
VST(OL/SC)
Limit Values
Min.
Typ.
Max.
4
–
5.5
Unit
Conditions
V
1)
VS > 8 V
Tj = 25...150 °C
RST = 470 kΩ
VS = VOUTx (OL) or VOUTx
= 0 V (SC)
8.4.8
ST open load/short
circuit current (ST-pin
acting as diagnosis
output)
IST(OL/SC)
100
–
220
µA
1)
VS > 8 V
Tj = 25...150 °C
VST = 2.5 V
VS = VOUTx (OL) or VOUTx
= 0 V (SC)
8.4.9
8.4.10
OL detection filter time
OL detection voltage
VPS(OL) = VS - VOUTx
tOL
VPS(OL)
10
22
35
µs
1)
0.2
–
0.4
V
VS > 8 V
VS > 8 V
8.4.11
Short circuit to GND
detection threshold
VOUT(SC)
0.8
–
1.4
V
VS > 8 V
8.4.12
SC detection filter time
tSC
tIN_SET(reset)
10
22
35
µs
1)
VS > 8 V
VS > 8 V
–
5
20
µs
1)
SC detection current in
IOUT(SC,STu)
case of unconnected STpin
100
200
300
µA
VS > 8 V
VOUTx = 0 V
8.4.15
SC detection current in
IOUT(SC,STG)
case of ST-pin shorted to
GND
0.1
2
4.75
mA
VS > 8 V
VOUTx = 0 V
VST = 0 V
8.4.16
IN_SET activation
IIN_SET(act)
current without turn on of
output stages
2
–
15
µA
See Figure 11
8.4.13
IN_SET diagnosis reset
time
8.4.14
1) Not subject to production test, specified by design
Data Sheet
24
Rev. 1.0, 2013-08-08
TLD1313EL
Power Stage
9
Power Stage
The output stages are realized as high side current sources with a current of 120 mA. During off state the leakage
current at the output stage is minimized in order to prevent a slightly glowing LED.
The maximum current of each channel is limited by the power dissipation and used PCB cooling areas (which
results in the applications RthJA).
For an operating current control loop the supply and output voltages according to the following parameters have
to be considered:
•
•
•
Required supply voltage for current control VS(CC), Pos. 5.4.9
Voltage drop over output stage during current control VPS(CC), Pos. 9.2.6
Required output voltage for current control VOUTx(CC), Pos. 9.2.7
9.1
Protection
The device provides embedded protective functions, which are designed to prevent IC destruction under fault
conditions described in this data sheet. Fault conditions are considered as “outside” normal operating range.
Protective functions are neither designed for continuous nor for repetitive operation.
9.1.1
Over Load Behavior
An over load detection circuit is integrated in the Basic LED Driver IC. It is realized by a temperature monitoring
of the output stages (OUTx).
As soon as the junction temperature exceeds the current reduction temperature threshold Tj(CRT) the output current
will be reduced by the device by reducing the IN_SET reference voltage VIN_SET(ref). This feature avoids LED’s
flickering during static output overload conditions. Furthermore, it protects LEDs against over temperature, which
are mounted thermally close to the device. If the device temperature still increases, the three output currents
decrease close to 0 A. As soon as the device cools down the output currents rise again.
IOU T
V IN_ SET
Tj (C R T)
Figure 19
Tj
Output current reduction at high temperature
Note: This high temperature output current reduction is realized by reducing the IN_SET reference voltage voltage
(Pos. 8.4.1). In case of very high power loss applied to the device and very high junction temperature the
output current may drop down to IOUTx = 0 mA, after a slight cooling down the current increases again.
9.1.2
Reverse Battery Protection
The TLD1313EL has an integrated reverse battery protection feature. This feature protects the driver IC itself, but
also connected LEDs. The output reverse current is limited to IOUTx(rev) by the reverse battery protection.
Data Sheet
25
Rev. 1.0, 2013-08-08
TLD1313EL
Power Stage
Note: Due to the reverse battery protection a reverse protection diode for the light module may be obsolete. In case
of high ISO-pulse requirements and only minor protecting components like capacitors a reverse protection
diode may be reasonable. The external protection circuit needs to be verified in the application.
9.2
Electrical Characteristics Power Stage
Electrical Characteristics Power Stage
Unless otherwise specified: VS = 5.5 V to 18 V, Tj = -40 °C to +150 °C, VOUTx = 3.6 V, all voltages with respect to
ground, positive current flowing into pin for input pins (I), positive currents flowing out of the I/O and output pins
(O) (unless otherwise specified)
Pos.
Parameter
Symbol
Limit Values
Min.
9.2.1
Output leakage current
Typ.
Unit
Conditions
µA
VEN = 5.5 V
IIN_SET = 0 µA
VOUTx = 2.5 V
Tj = 150 °C
1)
Tj = 85 °C
1)
VEN = 5.5 V
IIN_SET = 0 µA
VOUTx = VS = 40 V
1)
VS = -16 V
Max.
IOUTx(leak)
–
–
–
–
7
3
9.2.2
Output leakage current in
boost over battery setup
–
IOUTx(leak,B2B)
–
50
µA
9.2.3
Reverse output current
-IOUTx(rev)
–
1
µA
–
Output load: LED with
break down voltage
< - 0.6 V
9.2.4
9.2.5
Output current accuracy
limited temperature range
Output current accuracy
over temperature
1)
kLT
697
570
750
750
803
930
660
570
750
750
840
930
kALL
9.2.6
Voltage drop over power
VPS(CC)
stage during current control
VPS(CC) = VS - VOUTx
0.75
–
–
V
9.2.7
Required output voltage for VOUTx(CC)
current control
2.3
–
–
V
9.2.8
Maximum output current
120
–
–
mA
IOUT(max)
Tj = 25...115 °C
VS = 8...18 V
VPS = 2 V
RSET = 12 kΩ
RSET = 30 kΩ
1)
Tj = -40...115 °C
VS = 8...18 V
VPS = 2 V
RSET = 6...12 kΩ
RSET = 30 kΩ
1)
VS = 13.5 V
RSET = 12 kΩ
IOUTx ≥ 90% of
(kLT(typ)/RSET)
1)
VS = 13.5 V
RSET = 12 kΩ
IOUTx ≥ 90% of
(kLT(typ)/RSET)
RSET = 4.7 kΩ
The maximum output
current is limited by the
thermal conditions.
Please refer to
Pos. 4.3.1 - Pos. 4.3.3
Data Sheet
26
Rev. 1.0, 2013-08-08
TLD1313EL
Power Stage
Electrical Characteristics Power Stage (cont’d)
Unless otherwise specified: VS = 5.5 V to 18 V, Tj = -40 °C to +150 °C, VOUTx = 3.6 V, all voltages with respect to
ground, positive current flowing into pin for input pins (I), positive currents flowing out of the I/O and output pins
(O) (unless otherwise specified)
Pos.
Parameter
Symbol
9.2.9
ST turn on time
tON(ST)
Limit Values
Min.
Typ.
Max.
–
–
15
Unit
Conditions
µs
2)
VS = 13.5 V
RSET = 12 kΩ
ST → L
9.2.10
ST turn off time
tOFF(ST)
–
–
10
µs
IOUTx = 80% of
(kLT(typ)/RSET)
2)
VS = 13.5 V
RSET = 12 kΩ
ST → H
9.2.11
IN_SET turn on time
tON(IN_SET)
–
–
15
µs
9.2.12
IN_SET turn off time
tOFF(IN_SET)
–
–
10
µs
9.2.13
VS turn on time
tON(VS)
–
–
20
µs
9.2.14
Current reduction
temperature threshold
Tj(CRT)
–
140
–
°C
9.2.15
Output current during
current reduction at high
temperature
IOUT(CRT)
85% of –
(kLT(typ)/
RSET)
–
A
IOUTx = 20% of
(kLT(typ)/RSET)
VS = 13.5 V
IIN_SET = 0 → 100 µA
IOUTx = 80% of
(kLT(typ)/RSET)
VS = 13.5 V
IIN_SET = 100 → 0 µA
IOUTx = 20% of
(kLT(typ)/RSET)
1) 3)
VEN = 5.5 V
RSET = 12 kΩ
VS = 0 → 13.5 V
IOUTx = 80% of
(kLT(typ)/RSET)
1)
IOUTx = 95% of
(kLT(typ)/RSET)
1)
RSET = 12 kΩ
Tj = 150 °C
1) Not subject to production test, specified by design
2) see also Figure 14
3) see also Figure 6
Data Sheet
27
Rev. 1.0, 2013-08-08
TLD1313EL
Application Information
10
Application Information
Note: The following information is given as a hint for the implementation of the device only and shall not be
regarded as a description or warranty of a certain functionality, condition or quality of the device.
Vbat
BCM
PROFET
VBB
channel 1
load current
sense
internal
power
supply
logic
open load
detection
IN1
IS1
ESD
protection
clamp for
inductive load
gate control
&
charge pump
multi step
load current
limitation
OUT1
temperature
sensor
SEN
channel 2
control and protection circuit
equivalent to
channel 1
IN2
IS2
OUT2
R GND
GND
V BATT
Cmo d =2.2µF
CVS=4.7nF
ISO -Pulse
protection circuit
depending on
requirements
CVS =4.7nF
VS
10kΩ
EN
EN
Thermal
protection
CVS=4.7nF
VS
10kΩ
Internal
supply
Output
control
EN
Output
control
4.7nF** 4.7nF** 4.7nF**
Thermal
protection
OUT3
OUT1
Basic LED Driver
Status
GND
Output
control
4.7nF** 4.7nF** 4.7nF**
OUT3
OUT2
OUT1
IN_SET
ST
Thermal
protection
OUT2
IN_SET Current
RSET
Internal
supply
4.7nF** 4.7nF** 4.7nF**
OUT3
OUT2
adjust
VS
10kΩ
Internal
supply
RSET
Current
adjust
Basic LED Driver
OUT1
IN_SET Current
adjust
Status
ST
GND
RSET
Basic LED Driver
V ZD >V OU T(C C)
Status
ST
GND
R<50Ω
470kΩ*
GND
CST=100pF**
CST =100pF**
CST =100pF**
* In case PWM via VS or EN is performed.
** For EMI improvement, if required.
Figure 20
System Diagram TLD1313EL in combination with mutiple devices and two channel usage for
device at the right side
Note: This is a very simplified example of an application circuit. In case of high ISO-pulse requirements a reverse
protection diode may be used for LED protection. The function must be verified in the real application.
10.1
•
Further Application Information
For further information you may contact http://www.infineon.com/
Data Sheet
28
Rev. 1.0, 2013-08-08
TLD1313EL
Package Outlines
11
Package Outlines
0.19 +0.06
0.08 C
0.15 M C A-B D 14x
0.64 ±0.25
1
8
1
7
0.2
M
D 8x
Bottom View
3 ±0.2
A
14
6 ±0.2
D
Exposed
Diepad
B
0.1 C A-B 2x
14
7
8
2.65 ±0.2
0.25 ±0.05 2)
0.1 C D
8˚ MAX.
C
0.65
3.9 ±0.11)
1.7 MAX.
Stand Off
(1.45)
0 ... 0.1
0.35 x 45˚
4.9 ±0.11)
Index Marking
1) Does not include plastic or metal protrusion of 0.15 max. per side
2) Does not include dambar protrusion
Dimensions in mm
PG-SSOP-14-1,-2,-3-PO V02
Figure 21
PG-SSOP14
Green Product (RoHS compliant)
To meet the world-wide customer requirements for environmentally friendly products and to be compliant with
government regulations the device is available as a green product. Green products are RoHS-Compliant (i.e
Pb-free finish on leads and suitable for Pb-free soldering according to IPC/JEDEC J-STD-020).
For further information on alternative packages, please visit our website:
http://www.infineon.com/packages.
Data Sheet
29
Rev. 1.0, 2013-08-08
TLD1313EL
Revision History
12
Revision History
Revision
Date
Changes
1.0
2013-08-08
Inital revision of data sheet
Data Sheet
30
Rev. 1.0, 2013-08-08
Edition 2013-08-08
Published by
Infineon Technologies AG
81726 Munich, Germany
© 2013 Infineon Technologies AG
All Rights Reserved.
Legal Disclaimer
The information given in this document shall in no event be regarded as a guarantee of conditions or
characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any
information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties
and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights
of any third party.
Information
For further information on technology, delivery terms and conditions and prices, please contact the nearest
Infineon Technologies Office (www.infineon.com).
Warnings
Due to technical requirements, components may contain dangerous substances. For information on the types in
question, please contact the nearest Infineon Technologies Office.
Infineon Technologies components may be used in life-support devices or systems only with the express written
approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure
of that life-support device or system or to affect the safety or effectiveness of that device or system. Life support
devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain
and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may
be endangered.