TLD5097EL [INFINEON]
Multitopology LITIX Power DC/DC Controller IC;
| 型号： | TLD5097EL |
| 厂家： | 
Infineon |
| 描述： | Multitopology LITIX Power DC/DC Controller IC 驱动 光电二极管 接口集成电路 |
| 文件： | 总41页 (文件大小：1022K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Infineon® LITIX™ Power
Multitopology LITIXTM Power DC/DC Controller IC
TLD5097EL
Infineon® LITIX™ Power
Multitopology LITIXTM Power DC/DC Controller IC
Data Sheet
Revision 1.0
2015-03-12
Automotive Power
Infineon® LITIX™ Power
TLD5097EL
Table of Contents
Table of Contents
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1
2
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3
3.1
3.2
Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin Definitions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4
General Product Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Functional Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Thermal Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.1
4.2
4.3
5
5.1
5.2
Switching Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6
Oscillator and Synchronisation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Typical Performance Characteristics of Oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.1
6.2
6.3
7
Enable and Dimming Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.1
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
8
Linear Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
8.1
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
9
9.1
9.2
Protection and Diagnostic Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
10
Analog Dimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Purpose of Analog Dimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
10.1
10.2
10.3
11
Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
11.1
Further Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
12
Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Data Sheet
2
Revision 1.0 2015-03-12
Not for Customers
TLD5097EL
Infineon® LITIX™ Power
1
Overview
•
•
•
Wide Input Voltage Range from 4.5 V to 45 V
Constant Current or Constant Voltage Regulation
Drives LEDs in Boost, Buck, Buck-Boost, SEPIC and Flyback
Topology
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Very Low Shutdown Current: Iq_OFF < 10 µA
Flexible Switching Frequency Range, 100 kHz to 500 kHz
Synchronization with external clock source
PWM Dimming
PG-SSOP-14
Analog Dimming feature to adjust average LED current
Internal 5 V Low Drop Out Voltage Regulator
Open Circuit Detection
Output Overvoltage Protection
Internal Soft Start
Over Temperature Shutdown
Wide LED current range via simple adaptation of external components
300mV High Side Current Sense to ensure highest flexibility and LED current accuracy
Available in a small thermally enhanced PG-SSOP-14 package
Automotive AEC Qualified
Green Product (RoHS) Compliant
Description
The TLD5097EL is a LED boost controller with built in protection features. The main function of this device is to regulate
a constant LED current. The constant current regulation is especially beneficial for LED color accuracy and longer lifetime.
The controller concept of the TLD5097EL allows multiple configurations such as Boost, Buck, Buck-Boost, SEPIC and
Flyback by simply adjusting the external components. The TLD5097EL offers the most flexible dimming options. Dimming
can be achieved with analog or PWM input.The switching frequency is adjustable in the range of 100 kHz to 500 kHz and
can be synchronized to an external clock source. The TLD5097EL features an enable function reducing the shut-down
current consumption to Iq_OFF < 10 µA. The current mode regulation scheme of this device provides a stable regulation
loop maintained by small external compensation components. The integrated soft start feature limits the current peak as
well as voltage overshoot at start-up. This IC is suited for use in the harsh automotive environments and provides output
overvoltage protection and device overtemperature shutdown.
Application
•
Automotive Exterior and Interior Lighting
Type
Package
Marking
TLD5097EL
Data Sheet
PG-SSOP-14
TLD5097
3
Revision 1.0, 2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Block Diagram
2
Block Diagram
14
LDO
1
IVCC
SWO
IN
Power On
Reset
Internal
Supply
EN_INT/
PWM_INT
On/Off
Logic
13
11
EN / PWMI
Power Switch
Gate Driver
Soft
Start
2
Oscillator
FREQ/ SYNC
Slope
Comp.
4
3
SWCS
SGND
Switch Current
Error Amplifier
PWM
Generator
Thermal
Protection
Leading Edge
Blanking
Open
Load
Diagnostic
Logic
5
ST
Over Voltage
Protection
9
OVFB
Reference
Current
Generation
10
8
SET
6
7
FBH
FBL
Feedback Voltage
Error Amplifier
COMP
12
GND
Figure 2-1 Block Diagram TLD5097EL
Data Sheet
4
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Pin Configuration
3
Pin Configuration
3.1
Pin Assignment
1
2
3
4
5
6
7
14
13
12
11
10
9
IVCC
SWO
IN
EN/PWMI
GND
SGND
SWCS
exposed
Pad
FREQ/SYNC
ST
SET
FBH
OVFB
COMP
FBL
8
Figure 3-1 Pin Configuration TLD5097EL
3.2
Pin Definitions and Functions
Table 3-1
Pin Definition and Function
Direction Type
#
Symbol
Function
Internal LDO Output;
1
IVCC
Used for internal biasing and gate drive. Bypass with
external capacitor. Pin must not be left open.
2
3
4
SWO
Switch Output;
Connect to gate of external switching MOSFET
SGND
SWCS
Current Sense Ground;
Ground return for current sense switch
Current Sense Input;
Detects the peak current through switch
5
6
ST
Status Output;to indicate fualt conditions
FBH
Voltage Feedback Positive;
Non inverting Input (+)
7
8
FBL
Voltage Feedback Negative;
Inverting Input (-)
COMP
Compensation Input;
Connect R and C network to pin for stability
Data Sheet
5
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Pin Configuration
Table 3-1
Pin Definition and Function
Direction Type
#
Symbol
OVFB
Function
9
Output Overvoltage Protection Feedback;
Connect to resistive voltage divider to set overvoltage
threshold.
10 SET
Analog Dimming Input;
Load current adjustment Pin. Pin must not be left open. If
analog dimming feature is not used connect to IVCC pin.
11 FREQ / SYNC
Frequency Select or Synchronization Input;
Connect external resistor to GND to set frequency.
Or apply external clock signal for synchronization within
frequency capture range.
12 GND
Ground;
Connect to system ground.
13 EN / PWMI
Enable or PWM Input;
Apply logic HIGH signal to enable device or PWM signal for
dimming LED.
14 IN
EP
Supply Input;
Supply for internal biasing.
Exposed Pad;
Connect to external heat spreading GND Cu area (e.g.
inner GND layer of multilayer PCB with thermal vias)
Data Sheet
6
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
General Product Characteristics
4
General Product Characteristics
4.1
Absolute Maximum Ratings
Tj = -40°C to +150°C; all voltages with respect to ground, positive current flowing into pin (unless otherwise
specified)
Table 4-1
Absolute Maximum Ratings1)
Symbol
Parameter
Values
Typ.
Unit Note or
Test Condition
Number
Min.
Max.
Voltages
IN
VIN
-0.3
-40
-40
45
45
61
V
V
V
P_4.1.1
P_4.1.2
P_4.1.3
Supply Input
EN / PWMI
Enable or PWM Input
VEN
FBH-FBL;
Feedback Error Amplifier
Differential
VFBH-VFBL
The maximum
delta must not
exceed 61V
FBH;
VFBH
-40
61
V
The difference
P_4.1.4
Feedback Error Amplifier
Positive Input
between VFBH and
V
FBL must not
exceed 61V, refer
to Parameter
4.1.3
FBL
VFBL
-40
61
V
The difference
P_4.1.5
Feedback Error Amplifier
Negative Input
between VFBH and
V
FBL must not
exceed 61V, refer
to Parameter
4.1.3
FBH and FBL Current
IFBL,FBH
VOVP
1
mA
V
t < 100ms,
VFBH-VFBL =0.3V
P_4.1.6
P_4.1.7
OVFB
-0.3
-0.3
5.5
6.2
Over Voltage Feedback
Input
OVFB
VOVP
V
t < 10s
t < 10s
P_4.1.8
Over Voltage Feedback
Input
SWCS
VSWCS
-0.3
-0.3
5.5
6.2
V
V
P_4.1.9
Switch Current Sense Input
SWCS
VSWCS
P_4.1.10
Switch Current Sense Input
Data Sheet
7
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
General Product Characteristics
Table 4-1
Absolute Maximum Ratings1)
Parameter
Symbol
Values
Typ.
Unit Note or
Test Condition
Number
Min.
Max.
SWO
VSWO
-0.3
5.5
V
V
V
V
V
V
V
V
V
P_4.1.11
P_4.1.12
P_4.1.13
P_4.1.14
P_4.1.15
P_4.1.16
P_4.1.17
P_4.1.18
P_4.1.19
Switch Gate Drive Output
SWO
VSWO
-0.3
-0.3
-0.3
-0.3
6.2
0.3
5.5
6.2
5.5
6.2
5.5
6.2
t < 10s
Switch Gate Drive Output
SGND
VSGND
VCOMP
VCOMP
Current Sense Switch GND
COMP
Compensation Input
COMP
Compensation Input
t < 10s
t < 10s
FREQ / SYNC; Frequency
and Synchronization Input
VFREQ / SYNC -0.3
VFREQ / SYNC -0.3
FREQ / SYNC; Frequency
and Synchronization Input
PWMO
PWM Dimming Output
VPWMO
VPWMO
-0.3
-0.3
PWMO
PWM Dimming Output
t < 10s
t < 10s
ST
VST
VST
IST
-0.3
-0.3
-2
5.5
6.2
2
V
P_4.1.20
P_4.1.21
P_4.1.22
P_4.1.23
P_4.1.24
ST
V
ST current
SET
mA
V
VSET
VIVCC
-0.3
-0.3
45
5.5
IVCC
V
Internal Linear Voltage
Regulator Output
IVCC
VIVCC
-0.3
6.2
V
t < 10s
P_4.1.25
Internal Linear Voltage
Regulator Output
Temperatures
Junction Temperature
Storage Temperature
ESD Susceptibility
ESD Resistivity of all pins
Tj
-40
-55
150
150
°C
°C
P_4.1.26
P_4.1.27
Tstg
VESD,HBM
-2
-4
2
4
kV
kV
HBM2)
HBM2)
P_4.1.28
P_4.1.29
ESD Resistivity of IN,
EN/PWMI, FBH, FBL and SET
pin to GND
VESD,HBM
1) Not subject to production test, specified by design.
2) ESD susceptibility, Human Body Model “HBM” according to ANSI/ESDA/JEDEC JS-001 (1.5kΩ, 100pF)
Data Sheet
8
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
General Product Characteristics
Note:
1. 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.
2. 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.
4.2
Functional Range
Table 4-2
Functional Range
Symbol
Parameter
Values
Typ.
Unit Note or
Test Condition
Number
Min.
Max.
451)
Extended Supply
Voltage Range
VIN
VIN
4.5
V
VIVCC > VIVCC,RTH,d;
Parameter
P_4.2.1
deviations possible
Nominal Supply
Voltage Range
8
34
V
P_4.2.2
P_4.2.3
P_4.2.4
Feedback Voltage
Input
VFBH;
VFBL
3
60
V
Junction
Tj
-40
150
°C
Temperature
1) Not subject to production test, specified by design
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.
Data Sheet
9
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
General Product Characteristics
4.3
Thermal Resistance
Note: This thermal data was generated in accordance with JEDEC JESD51 standards.
For more information, go to www.jedec.org.
Table 4-3
Thermal Resistance
Symbol
Parameter
Values
Typ.
10
Unit Note or
Test Condition
Number
Min.
Max.
Junction to Case1)2) RthJC
K/W
K/W
P_4.3.1
P_4.3.2
Junction to
Ambient3)
RthJA
47
2s2p
Junction to Ambient RthJA
Junction to Ambient RthJA
54
64
K/W
K/W
1s0p + 600mm2
1s0p + 300mm2
P_4.3.3
P_4.3.4
1) Not subject to production test, specified by design.
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=25°C is dissipating 1W.
3) Specified RthJA value is according to JEDEC 2s2p (JESD 51-7) + (JESD 51-5) and JEDEC 1s0p (JESD 51-3) + heatsink
area at natural convection on FR4 board; The device was simulated on a 76.2 x 114.3 x 1.5mm board. The 2s2p board
has 2 outer copper layers (2 x 70µm Cu) and 2 inner copper layers (2 x 35µm Cu), A thermal via (diameter = 0.3mm and
25µm plating) array was applied under the exposed pad and connected the first outer layer (top) to the first inner layer and
second outer layer (bottom) of the JEDEC PCB. Ta=25°C, IC is dissipating 1W
Data Sheet
10
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Switching Regulator
5
Switching Regulator
5.1
Description
The TLD5097EL regulator is suitable for Boost, Buck, Buck-Boost, SEPIC and Flyback configurations. The
constant output current is especially useful for light emitting diode (LED) applications. The switching
regulator function is implemented by a pulse width modulated (PWM) current mode controller.
The PWM current mode controller uses the peak current through the external power switch and error in the
output current to determine the appropriate pulse width duty cycle (on time) for constant output current. The
current mode controller provides a PWM signal to an internal gate driver which then outputs to an external n-
channel enhancement mode metal oxide field effect transistor (MOSFET) power switch.
The current mode controller also has built-in slope compensation to prevent sub-harmonic oscillations which
is a characteristic of current mode controllers operating at high duty cycles (>50% duty).
An additional built-in feature is an integrated soft start that limits the current through the inductor and
external power switch during initialization. The soft start function gradually increases the inductor and switch
current over tSS (Parameter 5.2.9) to minimize potential overvoltage at the output.
OV FB
H when
OVFB >1.25V
OVFB 9
VRef
=
1.25V
High when
UV IVCC
IVCC < 4.0V
COMP 8
FBH 6
VRef
4.0V
=
NOR
Current
Comp
Gate Driver
Supply
x1
EA
1 IVCC
2 SWO
Output Stage
OFF when
Low
gmEA
High when
lEA - ISLOPE- ICS > 0
>
1
INV
R
S
IEA
OFF
when H
Q
Q
FBL 7
1
&
&
0 if SET< 1.6V
0
Gate
Driver
10
Low when
R
SET
1
VRef
V
T
j > 175 °C
Q
&
&
Soft start
(SET − 0.1V )
VRef
0.3V
=
5
Current
Sense
PWM-FF
Oscillator
Slope Comp
I
4
3
SWCS
SGND
NAND 2
S
t
Q
FREQ/
11
ICS
&
Error-FF
Clock
SYNC
Figure 5-1 Switching Regulator Block Diagram
Data Sheet
11
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Switching Regulator
5.2
Electrical Characteristics
VIN = 8 V to 34 V; Tj = -40°C to +150°C, all voltages with respect to ground, positive current flowing into pin;
(unless otherwise specified)
Table 5-1
Electrical Characteristics: Switching Regulator
Parameter
Symbol
Values
Typ.
Unit Note or
Test Condition
Number
Min.
Max.
Regulator
Feedback Reference VREF
Voltage
0.29
0.30
0.06
–
0.31
V
refer to
Figure 11-11
REF= VFBH -VFBL
VSET= 5V
LED= 350 mA
P_5.2.1
V
I
Feedback Reference VREF
Voltage
0.057
0.063
V
refer to
Figure 11-11
P_5.2.2
P_5.2.3
V
REF= VFBH -VFBL
VSET= 0.4V
LED= 70mA
I
Feedback Reference VREF_offset
Voltage Offset
–
5
mV
refer to
Figure 10-2 and
Figure 11-11
V
REF= VFBH -VFBL
VSET= 0.1V
VOUT>VIN
Voltage Line
Regulation
(Δ
/ ΔVIN
V
REF / VREF
)
–
–
–
–
0.15
5
%/V
%/A
refer to
Figure 11-11
P_5.2.4
P_5.2.5
V
V
IN = 8V to 19V;
SET = 5V;
ILED = 350mA
Voltage Load
Regulation
(ΔVREF
VREF) / ΔIBO
/
refer to
Figure 11-11
V
SET = 5V;
ILED = 100 to 500mA
Switch Peak Over
Current Threshold
VSWCS
130
91
150
93
170
95
mV
%
VFBH = VFBL = 5 V
VCOMP = 3.5V
P_5.2.6
P_5.2.7
P_5.2.8
Maximum Duty Cycle DMAX,fixed
Maximum Duty Cycle DMAX,sync
Fixed frequency
mode
88
–
–
%
Synchronization
mode
Soft Start Ramp
tSS
350
38
1000
46
1500
54
µs
µA
VFB rising from 5% P_5.2.9
to 95% of VFB, typ.
IFBH
IFBH
VFBH - VFBL = 0.3 V
P_5.2.10
Feedback High Input
Current
Data Sheet
12
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Switching Regulator
Table 5-1
Electrical Characteristics: Switching Regulator
Parameter
Symbol
Values
Typ.
21
Unit Note or
Test Condition
Number
Min.
Max.
IFBL
IFBL
15
27
µA
VFBH - VFBL = 0.3 V
P_5.2.11
Feedback Low Input
Current
Switch Current Sense ISWCS
Input Current
10
3.5
–
50
–
100
4.5
µA
V
VSWCS = 150 mV
VIN decreasing
VIN increasing
P_5.2.12
P_5.2.13
P_5.2.14
Input Undervoltage
Shutdown
VIN,off
Input Voltage Startup VIN,on
–
4.85
V
Gate Driver for External Switch
Gate Driver Peak
Sourcing Current
ISWO,SRC
ISWO,SNK
tR,SWO
tF,SWO
–
380
550
30
20
–
–
mA
mA
ns
ns
V
1)VSWO = 1 V to 4 V P_5.2.15
1)VSWO = 4 V to 1 V P_5.2.16
Gate Driver Peak
Sinking Current
–
–
Gate Driver Output
Rise Time
–
60
40
5.5
1)CL,SWO = 3.3 nF; P_5.2.17
VSWO = 1 V to 4 V
1)CL,SWO = 3.3 nF; P_5.2.18
VSWO = 4 V to 1 V
Gate Driver Output
Fall Time
–
Gate Driver Output
Voltage
VSWO
4.5
1)CL,SWO = 3.3 nF P_5.2.19
1) Not subject to production test, specified by design
Data Sheet
13
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Oscillator and Synchronisation
6
Oscillator and Synchronisation
6.1
Description
R_OSC vs. switching frequency
The internal oscillator is used to determine the switching frequency of the boost regulator. The switching
frequency can be selected from 100 kHz to 500 kHz with an external resistor to GND. To set the switching
frequency with an external resistor the following formula can be applied.
(6.1)
1
3
R FREQ
=
−
(
3.5 ⋅10
[
Ω
]
)[ ]
Ω
s
⎛
1
⎞
⎟
⎡
⎤
⎡
⎤
−12
(141 ⋅10
) ⋅ ⎜ f FREQ
⎢
⎣
⎥
⎦
⎢
⎣
⎥
⎦
Ω
s
⎝
⎠
In addition, the oscillator is capable of changing from the frequency set by the external resistor to a
synchronized frequency from an external clock source. If an external clock source is provided on the pin
FREQ/SYNC, then the internal oscillator synchronizes to this external clock frequency and the boost regulator
switches at the synchronized frequency. The synchronization frequency capture range is 250 kHz to 500 kHz.
Oscillator
FREQ / SYNC
PWM
Logic
Gate
Driver
11
Multiplexer
2 SWO
Clock Frequency
Detector
RFREQ
VCLK
Figure 6-1 Oscillator and Synchronization Block Diagram and Simplified Application Circuit
TSYNC = 1 / fSYNC
VSYNC
tSYNC,PWH
VSYNC,H
VSYNC,L
t
Figure 6-2 Synchronization Timing Diagram
Data Sheet
14
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Oscillator and Synchronisation
6.2
Electrical Characteristics
VIN = 8 V to 34 V; Tj = -40°C to +150°C, all voltages with respect to ground, positive current flowing into pin;
(unless otherwise specified)
Table 6-1
Electrical Characteristics: Oscillator and Synchronisation
Parameter
Symbol
Values
Typ.
Unit Note or
Test Condition
Number
Min.
Max.
Oscillator
Oscillator Frequency fFREQ
250
100
300
–
350
500
kHz
kHz
RFREQ = 20kΩ
P_6.2.1
P_6.2.2
Oscillator Frequency fFREQ
Adjustment Range
FREQ / SYNC Supply IFREQ
Current
–
–
-700
1.32
µA
V
VFREQ = 0 V
P_6.2.3
P_6.2.4
Frequency Voltage
VFREQ
fSYNC
1.16
1.24
fFREQ = 100 kHz
Synchronisation
Synchronization
Frequency Capture
Range
250
3.0
–
–
–
–
–
500
–
kHz
V
P_6.2.5
P_6.2.6
P_6.2.7
P_6.2.8
1)2)
1)2)
1)2)
Synchronization
Signal
VSYNC,H
High Logic Level Valid
Synchronization
Signal
VSYNC,L
0.8
–
V
Low Logic Level Valid
Synchronization
Signal
tSYNC,PWH
200
ns
Logic High Pulse
Width
1) Synchronization of external PWM ON signal to falling edge
2) Not subject to production test, specified by design
Data Sheet
15
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Oscillator and Synchronisation
6.3
Typical Performance Characteristics of Oscillator
600
500
400
300
200
100
0
Tj = 25 °C
0
10 20 30 40 50 60 70 80
RFREQ/SYNC [kohm]
Oscillator _fFreq_vs_Rfreq.vsd
Figure 6-3 Switching Frequency fSW versus Frequency Select Resistor to GND RFREQ/SYNC
Data Sheet
16
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Enable and Dimming Function
7
Enable and Dimming Function
Description
The enable function powers ON or OFF the device. A valid logic LOW signal on enable pin EN/PWMI powers OFF
the device and current consumption is less than Iq_OFF (Parameter 7.2.8). A valid logic HIGH enable signal on
enable pin EN/PWMI powers on the device. The enable function features an integrated pull down resistor
which ensures that the IC is shut down and the power switch is OFF in case the enable pin EN is left open.
In addition to the enable function described above, the EN/PWMI pin detects a pulse width modulated (PWM)
input signal that is fed through to the internal gate driver. The EN/PWMI enables and disables the gate driver
for the main switch during PWM operation. PWM dimming an LED is a commonly practiced dimming method
and can prevent color shift in an LED light source.
The enable and PWM input function share the same pin. Therefore a valid logic LOW signal at the EN/PWMI pin
needs to differentiate between an enable power OFF or an PWM dimming LOW signal. The device
differentiates between enable OFF and PWM dimming signal by requiring the enable OFF at the EN/PWMI pin
to stay LOW for the Enable Turn OFF Delay Time (tEN,OFF,DEL Parameter 7.2.6).
IN
14
Enable
IVCC
SWO
1
LDO
Enable / PWMI
Logic
EN / PWMI
Enable / PWMI
Gate
Driver
13
2
Microcontroller
Figure 7-1 Block Diagram and Simplified Application Circuit Enable and LED Dimming
Data Sheet
17
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Enable and Dimming Function
tEN,START
TPWMI
tPWMI,H
tEN,OFF,DEL
VEN/PWMI
VEN/PWMI,ON
VEN/PWMI,OFF
t
t
t
t
VIVCC
VIVCC,ON
VIVCC,RTH
VST
1
fFREQ
TFREQ
=
VSWO
Power OFF Delay Time
Power ON
Power OFF
Iq_OFF
Normal
SWO ON
ST ON
Dim
Normal
SWO ON
ST ON
Dim
Normal
SWO ON
ST ON
ST OFF
SWO OFF
ST OFF
SWO OFF
Figure 7-2 Timing Diagram Enable and LED Dimming
Note: The ST signal is LOW during soft-start.
7.1
Electrical Characteristics
VIN = 8V to 34V; Tj = -40°C to +150°C, all voltages with respect to ground, positive current flowing into pin;
(unless otherwise specified)
Table 7-1
Electrical Characteristics: Enable and Dimming
Parameter
Symbol
Values
Typ.
Unit Note or
Test Condition
Number
Min.
VEN/PWMI,ON 3.0
VEN/PWMI,OFF
VEN/PWMI,HYS 50
Max.
Enable / PWM Input
Enable/PWMI
Turn On Threshold
–
V
P_7.1.1
P_7.1.2
P_7.1.3
P_7.1.4
P_7.1.5
Enable/PWMI
Turn Off Threshold
–
–
0.8
400
30
1
V
1)
Enable/PWMI
Hysteresis
200
–
mV
µA
µA
Enable/PWMI
High Input Current
IEN/PWMI,H
IEN/PWMI,L
–
–
V
V
EN/PWMI = 16.0 V
EN/PWMI = 0.5 V
Enable/PWMI
0.1
Low Input Current
Data Sheet
18
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Enable and Dimming Function
Table 7-1
Electrical Characteristics: Enable and Dimming
Parameter
Symbol
Values
Typ.
10
Unit Note or
Test Condition
Number
Min.
Max.
Enable Turn Off
Delay Time
tEN,OFF,DEL
8
12
ms
P_7.1.6
P_7.1.7
Enable Startup Time tEN,START
100
–
–
–
–
µs
Current Consumption
Current
Consumption,
Shutdown Mode
CurrentConsumption,
Active Mode2)
Iq_OFF
10
µA
V
EN/PWMI = 0.8 V;
P_7.1.8
P_7.1.9
Tj ≤ 105°C;
VIN = 16V
Iq_ON
–
–
7
mA
VEN/PWMI ≥ 4.75 V;
IBO = 0 mA;
V
SWO = 0% Duty
Cycle
1) Not subject to production test, specified by design
2) Dependency on switching frequency and gate charge of external switches.
Data Sheet
19
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Linear Regulator
8
Linear Regulator
Description
The internal linear voltage regulator supplies the internal gate drivers with a typical voltage of 5 V and current
up to ILIM,min (parameter P_8.1.2). An external output capacitor with ESR lower than RIVCC,ESR (parameter
P_8.1.5) is required on pin IVCC for stability and buffering transient load currents. During normal operation
the external MOSFET switches will draw transient currents from the linear regulator and its output capacitor.
Proper sizing of the output capacitor must be considered to supply sufficient peak current to the gate of the
external MOSFET switches.
Integrated Undervoltage Protection for the External Switching MOSFET
An integrated undervoltage reset threshold circuit monitors the linear regulator output voltage (VIVCC) and
resets the device in case the output voltage falls below the IVCC undervoltage reset switch OFF threshold
(VIVCC,RTH,d). The undervoltage reset threshold for the IVCC pin helps to protect the external switches from
excessive power dissipation by ensuring the gate drive voltage is sufficient to enhance the gate of an external
logic level n-channel MOSFET.
IN
IVCC
14
1
Linear Regulator
13
EN / PWMI
Gate
Drivers
Figure 8-1 Voltage Regulator Block Diagram and Simplified Application Circuit
Data Sheet
20
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Linear Regulator
8.1
Electrical Characteristics
VIN = 8V to 34V; Tj = -40°C to +150°C, all voltages with respect to ground, positive current flowing into pin; (unless
otherwise specified)
Table 8-1
Electrical Characteristics:Line Regulator
Parameter
Symbol
Values
Typ.
5
Unit Note or
Test Condition
Number
Min.
Max.
Output Voltage
VIVCC
ILIM
4.85
5.15
V
6 V ≤ VIN ≤ 45 V
P_8.1.1
P_8.1.2
P_8.1.3
0.1 mA≤IIVCC≤40mA
Output Current
Limitation
51
90
mA
V
VIN = 13.5 V
V
IVCC = 4.5V
Drop out Voltage
VDR
0.5
VIN = 4.5V
I
IVCC = 25mA
1)2)
IVCC Buffer Capacitor CIVCC
0.47
–
1
–
100
0.5
µF
P_8.1.4
P_8.1.5
1)
IVCC Buffer Capacitor RIVCC,ESR
Ω
ESR
Undervoltage Reset VIVCC,HDRM
Headroom
100
3.6
–
–
–
mV
V
V
V
IVCC decreasing
IVCC - VIVCC,RTH,d
P_8.1.6
IVCC Undervoltage
Reset switch OFF
Threshold
VIVCC,RTH,d
4.0
3)VIVCC decreasing P_8.1.7
IVCC Undervoltage
Reset switch ON
Threshold
VIVCC,RTH,i
–
–
4.5
V
V
IVCC increasing
P_8.1.8
1) Minimum value given is needed for regulator stability; application might need higher capacitance than the minimum.
2) Minimum value given is needed for regulator stability; application might need higher capacitance than the minimum.
3) Selection of external switching MOSFET is crucial and the VIVCC,RTH,d min. as worst case VGS must be considered.
Data Sheet
21
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Protection and Diagnostic Functions
9
Protection and Diagnostic Functions
9.1
Description
The TLD5097EL has integrated circuits to diagnose and protect against output overvoltage, open load, open
feedback and overtemperature faults. In case of a fault condition, the SWO signal stops operation. The ST
signal will change to an active logic LOW signal to communicate that a fault has occurred (detailed overview
in Figure 9-1and Figure 9-2 below). Figure 9-3 illustrates the various open load and open feedback
conditions. In case of an overtemperature condition the integrated thermal shutdown function turns off the
gate driver and internal linear voltage regulator. The typical junction shutdown temperature is 175°C (Tj,SD
Parameter 9.2.3). After cooling down the IC will automatically restart. Thermal shutdown is an integrated
protection function designed to prevent IC destruction and is not intended for continuous use in normal
operation (Figure 9-5). To calculate the proper overvoltage protection resistor values an example is given in
Figure 9-6.
Input
Output
Protection and
Diagnostic Circuit
Output
Overvoltage
Open Load
SWO Gate Driver
OFF
OR
Open Feedback
Overtemperature
Linear Regul ator
OFF
OR
Input
Undervoltage
Figure 9-1 Protection and Diagnostic Function Block Diagram
Data Sheet
22
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Protection and Diagnostic Functions
Input
Condition
Overvoltage @
Output
Output
SWO
Sw*
L
Level*
False
True
ST
H or Sw*
IVCC
Active
Active
L
False
True
H or Sw*
Sw*
L
Active
Active
Open Load
L
False
True
False
True
False
True
H or Sw*
Sw*
L
Sw*
L
Sw*
L
Active
Active
Active
Open Feedback
Overtemperature
L
H or Sw*
L
H or Sw*
L
Shutdown
Active
Shutdown
Undervoltage @
Input
*Note:
Sw = Switching
False = Condition does not exist
True = Condition does exist
Figure 9-2 Diagnosis Truth Table
VBO
Output Open Circuit Conditions
Open Circuit 3
Open Circuit 1
Open Circuit
Fault Condition
Condition
Fault Threshold Voltage
VREF
1
2
3
4
Open FBH
Open FBL
Open VBO
-20 to -100 mV
0.5 to 1.0 V
ROVH
RFB
Overvoltage
Compartor
OVFB
Open Circuit 2
D1
9
-20 to -100 mV
ROVL
Open LEDGND Detected by overvoltage
VOVFB,TH
D2
D3
D4
D5
D6
D7
D8
D9
D10
VREF
Feedback Voltage
Error Amplifier
FBH
6
+
VREF
-
FBL
Max Threshold = 1.0 V
7
Min Threshold = 0.5 V
Typical VREF = 0.3 V
Max Threshold = -20 mV
Min Threshold = -100 mV
Open Circuit 4
Figure 9-3 Open Load and Open Feedback Conditions
Data Sheet
23
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Protection and Diagnostic Functions
Diagnosis Timing Diagram
Startup
Normal
Thermal
Overvoltage
2
Open Load /
Feedback
Shutdown
Shutdown
1
3
VIVCC
VIVCC,RTH,i
VIVCC,RTH,d
t
t
t
t
Tj,SD,HYST
Tj
Tj,SD
1
VOVFB,HYS
2
VBO
V
OVFB ≥ VOVFB,TH
VIN
3
VFBH-VFBL
VREF,2
tSS
tSS
0.3 V Typ
VREF,1
VST
t
Figure 9-4 Open load, Overvoltage and Overtemperature Timing Diagram
Data Sheet
24
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Protection and Diagnostic Functions
VEN/PWMI
H
L
t
Tj
T
jSD
ΔΤ
TjSO
t
Ta
VSWO
t
ILED
Ipeak
t
VST and
VIVCC
5V
t
Device
OFF
Overtemp
Fault
Overtemp
Fault
Overtemp Overtemp
ON
Fault Fault
Normal Operation
ON
ON
Figure 9-5 Device Overtemperature Protection Behavior
VOVFB
example: VOUT,max ≈ 40V
1.25mA
VOVP,max
Overvoltage Protection
ACTIVE
40V
ROVH
≅ 33.2kΩ
1.25mA
9
VOVFB,TH
1.25V
OVFB
ROVL
1kΩ
1.25V
Overvoltage Protection is
disabled
GND
12
t
Figure 9-6 Overvoltage Protection Description
Data Sheet
25
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Protection and Diagnostic Functions
9.2
Electrical Characteristics
VIN = 8V to 34V; Tj = -40°C to +150°C, all voltages with respect to ground, positive current flowing into pin;
(unless otherwise specified)
Table 9-1 Electrical Characteristics: Protection and Diagnosis
Parameter
Symbol
Values
Typ.
Unit Note or
Test Condition
Number
Min.
Max.
Status Output
1)
1)
Status Output
Voltage Low
VST,LOW
VST,HIGH
–
–
–
0.4
V
V
I = 1mA
P_9.2.1
P_9.2.2
ST
Status Output
Voltage High
VIVCC -0.4
VIVCC
I = -1mA
ST
Temperature Protection
Overtemperature
Shutdown
Tj,SD
160
–
175
15
190
–
°C
°C
1)refer to
Figure 9-5
1)
P_9.2.3
P_9.2.4
Overtemperature
Shutdown
Tj,SD,HYST
Hystereses
Overvoltage Protection
Output Over Voltage VOVFB,TH
Feedback Threshold
Increasing
1.21
1.25
1.29
V
refer to Figure 9-6 P_9.2.5
Output Over Voltage VOVFB,HYS
Feedback Hysteresis
50
2
–
150
10
1
mV
µs
1)Output Voltage
decreasing
P_9.2.6
P_9.2.7
P_9.2.8
Over Voltage
Reaction Time
tOVPRR
IOVFB
–
1)Output Voltage
decreasing
Over Voltage
Feedback Input
Current
-1
0.1
µA
VOVFB = 1.25 V
Open Load and Open Feedback Diagnostics
Open
Load/Feedback
Threshold
VREF,1,3
-100
–
–
-20
1
mV
V
refer to Figure 9-3 P_9.2.9
VREF = VFBH - VFBL
Open Circuit 1 or 3
Open Feedback
Threshold
VREF,2
0.5
VREF = VFBH - VFBL
P_9.2.10
Open Circuit 2
1) Specified by design; not subject to production test.
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
26
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Analog Dimming
10
Analog Dimming
This pin is influencing the Feedback Voltage Error Amplifier by generating an internal current accordingly to
an external reference voltage (VSET). If the analog dimming feature is not needed this pin must be connected
to IVCC or external > 1.6V supply. Different application scenarios are described in Figure 10-3. This pin can
also go outside of the ECU for instance if a thermistor is connected on a separated LED Module and the Analog
Dimming Input is used to thermally protect the LEDs. For reverse battery protection of this pin an external
series resistor should be placed to limit the current.
10.1
Purpose of Analog Dimming
1. It is difficult for LED manufacturers to deliver LEDs which have the same Brightness, Colorpoint and
Forward Voltage Class. Due to this relatively wide spread of the crucial LED parameters automotive
customers order LEDs from one or maximum two different colorpoint classes. The LED manufacturer must
preselect the LEDs to deliver the requested colorpoint class. Those preselected LEDs are matched in terms
of the colorpoint but a variation of the brightness remains. To correct the brightness deviation an analog
dimming feature is needed. The mean LED current can be adjusted by applying an external voltage VSET
at the SET pin.
2. If the DC/DC application is separated from the LED loads the ECU manufacturers aim is to develop one
hardware which should be able to handle different load current conditions (e.g. 80mA to 400mA) to cover
different applications. To achieve this average LED current adjustment the analog dimming is a crucial
feature.
10.2
Description
Application Example
Desired LED current = 400mA. For the calculation of the correct Feedback Resistor RFB the following equation can
be used: This formula is valid if the analog dimming feature is disabled and VSET > 1.6V.
(10.1)
VREF
RFB
VREF
ILED
0.3V
ILED
=
→ RFB =
→ RFB =
= 750mΩ
400mA
A decrease of the average LED current can be achieved by controlling the voltage at the SET pin (VSET) between
0V and 1.6V. The mathematical relation is given in the formula below:
(10.2)
VSET − 0.1V
ILED
=
5⋅ RFB
If VSET is 100mV the LED current is only determined by the internal offset voltages of the comparators. For this
example ILED = 0A if VSET < 100mV. Refer to the concept drawing in Figure 10-2.
Data Sheet
27
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Analog Dimming
VREF
[V]
typ. 300mV
1.6V
100mV
VSET
[V]
Analog Dimming
Disabled
Analog Dimming Feature Enabled
VSET − 0.1V
5* RFB
VREF
ILED
=
ILED
=
RFB
Figure 10-1 Basic relationship between VREF and VSET Voltage
VREF
VOUT
RFB
FBL
IFBL
R2
FBH
ILED
6
7
V
int
IFBH
R1
VBandgap = 1.6V
VREF_offset
SET
10
+
+
-
VSET
-
+
Feedback Voltage
Error Amplifier
ISET
ISET
n*ISET
R3
100mV
COMP
GND
8
12
CCOMP
RCOMP
Figure 10-2 Concept Drawing Analog Dimming
Data Sheet
28
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Analog Dimming
Multi-purpose usage of the Analog dimming feature
1. A µC integrated digital analog converter (DAC) output or a stand alone DAC can be used to supply the SET
pin of the TLD5097EL. The integrated voltage Regulator (VIVCC) can be used to supply the µC or external
components if the current consumption does not exceed 20mA.
2. The analog dimming feature is directly connected to the input voltage of the system. In this configuration
the LED current is reduced if the input voltage VIN is decreasing. The DC/DC boost converter is changing
(increasing) the switching duty cycle if VIN drops to a lower potential. This is causing an increase of the
input current consumption. If applications require a decrease of the LED current in respect to VIN
variations this setup can be choosen.
3. The usage of an external resistor divider connected between IVCC (integrated 5V regulator output and gate
buffer pin) SET and GND can be choosen for systems without µC on board. The concept allows to control
the LED current via placing cheap low power resistors. Furthermore a temperature sensitive resistor
(Thermistor) to protect the LED loads from thermal destruction can be connected additionally.
4. If the analog dimming feature is not needed the SET pin must be connected directly to >1.6V potential (e.g.
IVCC potential)
5. Instead of an DAC the µC can provide a PWM signal and an external R-C filter is producing a constant
voltage for the analog dimming. The voltage level is depending on the PWM frequency (fPWM) and duty
cycle (DC) which can be controlled by the µc software after reading the coding resistor placed at the LED
module.
Data Sheet
29
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Analog Dimming
+5V
Vbb
1
2
CIVCC
1
14
IVCC
IN
RSET2
10
D/A-Output
SET
10
SET
µC
VSET
VSET RSET1
Cfilter
GND
12
GND
12
3
4
V
IVCC = +5V
VIVCC = +5V
1
1
IVCC
SET
IVCC
SET
Rfilter
RSET2
CIVCC
CIVCC
10
10
RSET1
GND
12
GND
12
VSET
VSET ~ VIVCC
Cfilter
C
filter
5
+5V
CIVCC
1
IVCC
SET
PWM
10
PWM output
Rfilter
µC
(e.g. XC866)
Cfilter
VSET
GND
12
Figure 10-3 Analog Dimming in various applications
Data Sheet
30
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Analog Dimming
10.3
Electrical Characteristics
VIN = 8V to 34V; Tj = -40°C to +150°C, all voltages with respect to ground, positive current flowing into pin;
(unless otherwise specified)
Table 10-1 Electrical Characteristics: Protection and Diagnosis
Parameter
Symbol
Values
Typ.
–
Unit Note or
Test Condition
Number
Min.
Max.
SET programming VSET
0
1.6
V
1)refer to Figure 10-1 P_10.3.1
range
1) Specified by design; not subject to production test.
Data Sheet
31
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Application Information
11
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.
LBO
DBO
RFB
VIN
VIN = 4.5V to 45V
CIN
CBO
ILED
VREF
TSW
2
4
SWO
14
IN
SWCS
RCS
V
CC or VIVCC
D1
ROVH
3
9
SGND
OVFB
D2
D3
D4
D5
D6
D7
D8
D9
D10
PWM
VSET
10
Analog Dimming
SET
ST
Rfilter
IC2
Cfilter
ROVL
IC1
TLD5097
Microcontroller
(e.g. XC866)
5
Status
PWMI
6
7
1
FBH
FBL
13
11
8
Digital Dimming
EN / PWMI
FREQ / SYNC
COMP
Spread
Spectrum
CCOMP
IVCC
CIVCC
RFREQ
RCOMP
GND
12
Figure 11-1 Boost to Ground Application Circuit - B2G (Boost configuration)
Reference
Designator
Part
Number
Value
Manufacturer
Type
Quantity
D1 - 10
DBO
White
Schottky, 3 A, 100 VR
100 uF, 50V
10 uF, 50V
100 nF
Osram
Vishay
LUW H9GP
SS3H10
LED
Diode
10
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
CIN
Panasonic
Panasonic
EPCOS
EEEFK1H101GP
Electrolytic or Ceramic Bank
X7R
Capacitor
Capacitor
Capacitor
Capacitor
IC
CBO
CCOMP
CIVCC
IC1
MLCC CCNPZC105KBW X7R
TLD5097
1uF , 6.3V
--
EPCOS
Infineon
IC2
--
Infineon
XC866
IC
LBO
100 uH
Coilcraft
MSS1278T-104ML
ERJ3EKF1002V
ERJ14BQFR82U
ERJ3EKF2002V
ERJ3EKF3322V
ERJ3EKF1001V
ERJB1CFR05U
IPG20N10S4L-22
IPD30N06S4L-23
Inductor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Transistor
Transistor
RCOMP
RFB
10 kΩ, 1%
820 mΩ, 1%
20 kΩ, 1%
33.2 kΩ, 1%
1 kΩ, 1%
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
Infineon
RFREQ
ROVH
ROVL
RCS
50 mΩ, 1%
100V N-ch, 35A
alternativ: 60V N-ch, 30A
TSW
Infineon
Figure 11-2 Bill of Materials for B2G Application Circuit
Data Sheet 32
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Application Information
L1
DBO
CSEPIC
VIN
VIN = 4.5V to 45V
CIN
ISW
RFB
L2
VREF
CBO
TSW
2
4
SWO
14
IN
SWCS
ILED
D1
RCS
V
CC or VIVCC
ROVH
D2
D3
D4
D5
D6
D7
3
9
SGND
OVFB
PWM
VSET
10
Analog Dimming
SET
ST
Rfilter
ROVL
IC2
Cfilter
IC1
TLD5097
Microcontroller
(e.g. XC866)
Status
5
PWMI
13
11
8
Digital Dimming
EN / PWMI
FREQ/ SYNC
COMP
6
7
FBH
FBL
Spread
Spectrum
Dn
CCOMP
DPOL
RPOL
1
IVCC
CIVCC
RFREQ
RCOMP
GND
12
Figure 11-3 SEPIC Application Circuit (Buck-Boost configuration)
Reference
Designator
Part
Number
Value
White
Manufacturer
Osram
Type
LED
Quantity
variable
D1 - n
LUW H9GP
DBO
Schottky, 3 A, 100 VR
80V Diode
Vishay
SS3H10
Diode
Diode
1
1
DPOL
Infineon
BAS1603W
CSEPIC
CIN
3.3 uF, 20V
100 uF, 50V
10 uF, 50V
100 nF
EPCOS
Panasonic
Panasonic
EPCOS
EPCOS
Infineon
X7R, Low ESR
EEEFK1H101GP
EEEFK1H100P
X7R
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
IC
1
1
1
1
1
1
1
2
CBO
CCOMP
CIVCC
IC1
1uF , 6.3V
--
X7R
TLD5097
IC2
--
Infineon
XC866
IC
L1 , L2
47 uH
Coilcraft
MSS1278T-473ML
Inductor
alternativ: 22uH coupled
inductor
Coilcraft
MSD1278-223MLD
Inductor
1
RCOMP, RPOL
RFB
10 kΩ, 1%
820 mΩ, 1%
20 kΩ, 1%
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
Infineon
ERJ3EKF1002V
ERJ14BQFR82U
ERJ3EKF2002V
ERJ3EKF3322V
ERJ3EKF1001V
ERJB1CFR05U
IPD35N10S3L-26
IPD30N06S4L-23
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Transistor
Transistor
2
1
1
1
1
1
1
1
RFREQ
ROVH
33.2 kΩ, 1%
1 kΩ, 1%
ROVL
RCS
50 mΩ, 1%
100V N-ch, 35A
alternativ: 60V N-ch, 30A
TSW
Infineon
Figure 11-4 Bill of Materials for SEPIC Application Circuit
Data Sheet 33
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Application Information
DBO
VIN
VIN = 4.5V to 45V
CIN
L1
ISW
RFB
L2
VREF
CBO
TSW
2
4
SWO
14
IN
SWCS
ILED
RCS
V
CC or VIVCC
ROVH
D1
3
9
SGND
OVFB
PWM
D2
D3
D4
D5
D6
D7
VSET
10
Analog Dimming
SET
Rfilter
ROVL
IC2
Cfilter
IC1
Microcontroller
(e.g. XC866)
Status
5
ST TLD5097
EN / PWMI
FREQ/ SYNC
COMP
PWMI
13
11
8
Digital Dimming
Output
6
7
FBH
FBL
CCOMP
DPOL
RPOL
Dn
1
IVCC
CIVCC
RFREQ
RCOMP
GND
12
Figure 11-5 Flyback Application Circuit (Buck-Boost configuration)
Reference
Designator
Part
Number
Value
Manufacturer
Type
LED
Quantity
D1 - n
DBO
CBO
CIN
White
Schottky, 3 A, 100 VR
3.3 uF, 50V (100V)
100 uF, 50V
47 nF
Osram
Vishay
LUW H9GP
SS3H10
variable
Diode
Capacitor
Capacitor
Capacitor
Capacitor
IC
1
1
1
1
1
1
1
EPCOS
Panasonic
EPCOS
EPCOS
Infineon
Infineon
X7R, Low ESR
EEEFK1H101GP
X7R
CCOMP
CIVCC
IC1
1 uF , 6.3V
--
X7R
TLD5097
XC866
IC2
--
IC
L1 , L2
1 µH / 9 uH
EPCOS
Transformer EHP 16
ERJ3EKF1002V
Inductor
Resistor
1
2
RCOMP, RPOL
10 kΩ, 1%
Panasonic
DPOL
RFB
80 V Diode
820 mΩ, 1%
Infineon
Isabellenhütte
Panasonic
Panasonic
Panasonic
Isabellenhütte
Infineon
BAS1603W
SMS – Power Resistor
ERJ3EKF1002V
Diode
Resistor
Resistor
Resistor
Resistor
Resistor
Transistor
Transistor
1
1
1
1
1
1
1
1
RFREQ
ROVH
ROVL
RCS
10 kΩ, 1%
56.2 kΩ, 1%
ERJ3EKF5622V
1.24 kΩ, 1%
ERJ3EKF1241V
5 mΩ, 1%
SMS - Power Resistor
IPG20N10S4L-22
IPD30N06S4L-23
TSW
100V N-ch, 35A
alternativ: 60V N-ch, 30A
Infineon
Figure 11-6 Bill of Materials for Flyback Application Circuit
Data Sheet 34
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Application Information
CBO
RFB
VIN = 4.5V to 45V
CIN
Dn
D1
Number of LEDs could be
variable independent from VIN:
Æ BUCK-BOOST configuration
ILED
LBO
DBO
ISW
VOUT
TSW
2
SWO
4
SWCS
6
7
FBH
FBL
RCS
VCC or VIVCC
3
9
SGND
OVFB
ROVH
14
10
IN
PWM
VSET
Analog Dimming
SET
Rfilter
IC2
Cfilter
ROVL
IC1
TLD5097
Microcontroller
(e.g. XC866)
5
Status
ST
PWMI
13
11
Digital Dimming
Spread Spectrum
EN / PWMI
FREQ / SYNC
8
1
COMP
IVCC
CCOMP
CIVCC
GND
12
RFREQ
RCOMP
Figure 11-7 Boost to Battery Application Circuit - B2B (Buck-Boost configuration)
Reference
Designator
Part
Number
Value
Manufacturer
Type
Quantity
D1 - n
DBO
White
Osram
Vishay
LUW H9GP
SS3H10
Diode
Diode
variable
Schottky, 3 A, 100 VR
1
CBO
CIN
10 uF, 80V
Panasonic
Panasonic
EEEFK1K100P
Capacitor
Capacitor
1
1
100 uF, 50V
EEEFK1H101GP
CCOMP
CIVCC
IC1
100 nF
1 uF, 6.3V
--
EPCOS
EPCOS
Infineon
Infineon
Coilcraft
X7R
MLCC CCNPZC105KBW X7R
TLD5097
Capacitor
Capacitor
IC
1
1
1
1
1
IC2
--
XC866
IC
LBO
100 uH
MSS1278T-104ML_
Inductor
RCOMP
RFB
10 kΩ, 1%
820 mΩ, 1%
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
ERJ3EKF1002V
ERJ14BQFR82U
ERJ3EKF2002V
ERJP06F5102V
ERJ3EKF1001V
ERJB1CFR05U
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
1
1
1
1
1
1
RFREQ
ROVH
ROVL
RCS
20 kΩ, 1%
33.2 kΩ, 1%
1 kΩ, 1%
50 mΩ, 1%
N-ch, OptiMOS-T2 100V, 35A
alternativ: 60V N-ch, 30A
TSW
Infineon
Infineon
IPD35N10S3L-26
IPD30N06S4L-23
Transistor
1
Transistor
1
Figure 11-8 Bill of Materials for B2B Application Circuit
Data Sheet 35
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Application Information
DBO
D1
D2
CBO
VREF
LBO
ILED
VIN = 4.5V to 45V
CIN
RFB
BUCK Setup:
VIN > VOUT
14
IN
VCC or VIVCC
6
FBH
PWM
VSET
10
Analog Dimming
SET
7
1
Rfilter
FBL
IC2
Cfilter
IC1
ST TLD5097
IVCC
Microcontroller
(e.g. XC866)
CIVCC
RPOL
RPOL
5
Status
PWMI
TSW
2
4
SWO
13
11
8
Digital Dimming
Spread Spectrum
EN / PWMI
FREQ / SYNC
COMP
SWCS
RCS
3
9
SGND
OVFB
CCOMP
RFREQ
RCOMP
GND
12
Figure 11-9 Buck Application Circuit
Reference
Value
Part
Number
Manufacturer
Type
LED
Quantity
Designator
D1 -2
DBO
DPOL
CBO
CIN
White
Schottky, 3 A, 100 VR
80V Diode
4.7 uF, 50V
100 uF, 50V
47 nF
Osram
Vishay
LE UW Q9WP
SS3H10
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Diode
Diode
Infineon
BAS1603W
X7R
EPCOS
Capacitor
Capacitor
Capacitor
Capacitor
IC
Panasonic
EPCOS
EEEFK1H101GP
X7R
CCOMP
CIVCC
IC1
MLCC CCNPZC105KBW X7R
TLD5097
1 uF , 6.3V
--
EPCOS
Infineon
IC2
--
Infineon
XC866
IC
L1
22 µH
Coilcraft
MSS1278T
Inductor
Resistor
Resistor
Resistor
Resistor
Transistor
Transistor
RPOL
RFB
10 kΩ, 1%
820 mΩ, 1%
20 kΩ, 1%
50 mΩ, 1%
100V N-ch, 35A
alternativ: 60V N-ch, 30A
Panasonic
Isabellenhütte
Panasonic
Isabellenhütte
Infineon
ERJ3EKF1002V
SMS – Power Resistor
ERJ3EKF2002V
RFREQ
RCS
SMS - Power Resistor
IPG20N10S4L-22
IPD30N06S4L-23
TSW
Infineon
Figure 11-10 Bill of Materials for Buck Application Circuit
Data Sheet 36
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Application Information
LBO
DBO
ILoad
VIN = 4.5V to 45V
CIN
CBO
constant
VOUT
RL
2
4
TSW
SWO
14
1
IN
SWCS
IVCC
CIVCC
RCS
VCC or VIVCC
3
9
ROVH
SGND
OVFB
PWM
VSET
IC2
10
SET
ST
Microcontroller
(e.g. XC866)
Rfilter
Cfilter
ROVL
IC1
TLD5097
RFB1
5
13
11
8
Status
Enable
EN / PWMI
FREQ / SYNC
COMP
6
7
FBH
FBL
Spread Spectrum
RFB2
VREF
CCOMP
RFB3
GND
12
RFREQ
RCOMP
Figure 11-11 Boost Voltage Application Circuit
Reference
Designator
Part
Number
Value
Manufacturer
Type
Quantity
1
DBO
Schottky, 3 A, 100 VR
Vishay
SS3H10
Diode
CBO
CIN
100 uF, 80V
100 uF, 50V
Panasonic
Panasonic
EEVFK1K101Q
Capacitor
Capacitor
1
1
EEEFK1H101GP
CCOMP
CIVCC
IC1
10 nF, 16V
1 uF, 6.3V
EPCOS
Panasonic
Infineon
X7R
X7R
Capacitor
Capacitor
IC
1
1
1
1
1
1
1
1
1
1
1
1
1
--
TLD5097
XC866
IC2
--
Infineon
IC
LBO
100 uH
Coilcraft
MSS1278T-104ML_
ERJ3EKF1002V
ERJ3EKF5102V
ERJ3EKF1001V
ERJ3EKF2002V
ERJ3EKF3322V
ERJ3EKF1001V
ERJB1CFR05U
IPG20N10S4L-22
Inductor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Transistor
RCOMP
RFB1,RFB3
RFB2
10 kohms, 1%
51 kohms, 1%
1 kohms, 1%
20 kohms, 1%
33.2 kohms, 1%
1 kohms, 1%
50 mohms, 1%
N-ch, OptiMOS-T2 100V
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
Infineon
RFREQ
ROVH
ROVL
RCS
TSW
Figure 11-12 Bill of Materials for Boost Voltage Application Circuit
Note: The application drawings and corresponding bill of materials are simplified examples. Optimization of the
external components must be done accordingly to specific application requirements.
Data Sheet
37
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Application Information
11.1
Further Application Information
•
•
For further information you may contact http://www.infineon.com/
Application Note: TLD509x DC-DC Multitopology Controller IC “Dimensioning and Stability Guideline -
Theory and Practice”
Data Sheet
38
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Package Outlines
12
Package Outlines
0.35 x 45˚
1)
0.1 C D
0.1
3.9
+0.06
0.19
0.08
C
C
0.64
0.25
0.65
2)
0.05
0.2
0.25
6
M
M
0.2
D 8x
0.15
C A-B D 14x
D
Bottom View
0.2
3
A
1
7
14
8
1
7
14
8
Exposed
Diepad
B
0.1 C A-B 2x
1)
0.1
4.9
Index Marking
1) Does not include plastic or metal protrusion of 0.15 max. per side
2) Does not include dambar protrusion
PG-SSOP-14-1,-2,-3-PO V02
Figure 12-1 Outline PG-SSOP-14 Dimensions in mm
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).
Note: For further package information, please visit our website: http://www.infineon.com/packages.
Data Sheet
39
Revision1.0
2015-03-12
Infineon® LITIX™ Power
TLD5097EL
Revision History
Revision 1.0, 2015-03-12
Page or Item Subjects (major changes since previous revision)
Responsible Date
2013-11-12
Rev1.0
Initial Data Sheet for TLD5097EL
Data Sheet
40
Revision 1.0 2015-03-12
Trademarks of Infineon Technologies AG
AURIX™, C166™, CanPAK™, CIPOS™, CoolGaN™, CoolMOS™, CoolSET™, CoolSiC™, CORECONTROL™, CROSSAVE™, DAVE™, DI-POL™, DrBLADE™, EasyPIM™,
EconoBRIDGE™, EconoDUAL™, EconoPACK™, EconoPIM™, EiceDRIVER™, eupec™, FCOS™, HITFET™, HybridPACK™, Infineon™, ISOFACE™, IsoPACK™, i-
Wafer™, MIPAQ™, ModSTACK™, my-d™, NovalithIC™, OmniTune™, OPTIGA™, OptiMOS™, ORIGA™, POWERCODE™, PRIMARION™, PrimePACK™,
PrimeSTACK™, PROFET™, PRO-SIL™, RASIC™, REAL3™, ReverSave™, SatRIC™, SIEGET™, SIPMOS™, SmartLEWIS™, SOLID FLASH™, SPOC™, TEMPFET™,
thinQ!™, TRENCHSTOP™, TriCore™.
Other Trademarks
Advance Design System™ (ADS) of Agilent Technologies, AMBA™, ARM™, MULTI-ICE™, KEIL™, PRIMECELL™, REALVIEW™, THUMB™, µVision™ of ARM Limited,
UK. ANSI™ of American National Standards Institute. AUTOSAR™ of AUTOSAR development partnership. Bluetooth™ of Bluetooth SIG Inc. CAT-iq™ of DECT
Forum. CIPURSE™ of OSPT Alliance. COLOSSUS™, FirstGPS™ of Trimble Navigation Ltd. EMV™ of EMVCo, LLC (Visa Holdings Inc.). EPCOS™ of Epcos AG.
FLEXGO™ of Microsoft Corporation. HYPERTERMINAL™ of Hilgraeve Incorporated. MCS™ of Intel Corp. IEC™ of Commission Electrotechnique Internationale.
IrDA™ of Infrared Data Association Corporation. ISO™ of INTERNATIONAL ORGANIZATION FOR STANDARDIZATION. MATLAB™ of MathWorks, Inc. MAXIM™ of
Maxim Integrated Products, Inc. MICROTEC™, NUCLEUS™ of Mentor Graphics Corporation. MIPI™ of MIPI Alliance, Inc. MIPS™ of MIPS Technologies, Inc.,
USA. muRata™ of MURATA MANUFACTURING CO., MICROWAVE OFFICE™ (MWO) of Applied Wave Research Inc., OmniVision™ of OmniVision Technologies,
Inc. Openwave™ of Openwave Systems Inc. RED HAT™ of Red Hat, Inc. RFMD™ of RF Micro Devices, Inc. SIRIUS™ of Sirius Satellite Radio Inc. SOLARIS™ of
Sun Microsystems, Inc. SPANSION™ of Spansion LLC Ltd. Symbian™ of Symbian Software Limited. TAIYO YUDEN™ of Taiyo Yuden Co. TEAKLITE™ of CEVA,
Inc. TEKTRONIX™ of Tektronix Inc. TOKO™ of TOKO KABUSHIKI KAISHA TA. UNIX™ of X/Open Company Limited. VERILOG™, PALLADIUM™ of Cadence Design
Systems, Inc. VLYNQ™ of Texas Instruments Incorporated. VXWORKS™, WIND RIVER™ of WIND RIVER SYSTEMS, INC. ZETEX™ of Diodes Zetex Limited.
Trademarks Update 2014-11-12
www.infineon.com
Edition 2015-03-12
Published by
Infineon Technologies AG
81726 Munich, Germany
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no event be regarded as
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
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protect human life. If they fail, it is reasonable to
assume that the health of the user or other
persons may be endangered.
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
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© 2014 Infineon Technologies AG.
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Document reference
Doc_Number
相关型号：
TLD5191ES
TLD5191ES 是一款具有内置保护功能的同步 MOSFET H 桥 DC-DC 控制器。 该设计有利于以最高的系统效率和最少的外部组件驱动高功率 LED。 TLD5191ES 具有模拟和数字 (PWM) 调光及嵌入式 PWM 发生器。 开关频率可在 200 kHz 至 700 kHz 范围内调节。 内置扩频开关频率调制和强制连续电流调节模式改善了整体 EMC 行为。 此外，电流模式调节方案提供了一个由小型外部补偿元件维持的稳定调节环路。 可调软启动功能可限制启动时的电流峰值和电压过冲。 TLD5191ES 适用于汽车环境以及工业和消费类应用（例如无线充电）。
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