TLD5097EP [INFINEON]
LED Driver,;
| 型号： | TLD5097EP |
| 厂家： | 
Infineon |
| 描述： | LED Driver, 驱动 接口集成电路 |
| 文件： | 总41页 (文件大小：1178K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LITIX™ Power
TLD5097EP - Multitopology LITIX™ Power DC/DC Controller IC
1
Overview
Description
The TLD5097EP is a flexibly usable DC/DC boost controller with built in
diagnosis and protection features especially designed to drive LEDs.
It is designed to support fixed current and fixed voltage configurations in
multiple topologies such as Boost, Buck, Buck-Boost, SEPIC and Flyback by simply adjusting the external
components. The TLD5097EP drives a low side n-channel power MOSFET from an internal 5 V linear regulator.
The switching frequency is adjustable in the range of 100 kHz to 500 kHz and can also be synchronized to an
external clock source.
The TLD5097EP can be flexibly dimmed by means of analog and PWM dimming; an enable function reduces
the shut-down current consumption to IQ_OFF < 10 µA.
The current mode control scheme of this device provides a stable regulation loop maintained by small
external compensation components. Additionally an 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.
LBO
DBO
VIN
VIN = 4.5V to 45V
CIN
CBO
ILED
TSW
2
4
SWO
14
IN
V
CC or VIVCC
SWCS
RFB
VREF
RCS
RA
V
CC or VIVCC
ROVH
3
9
SGND
OVFB
10
D1
RB
SET
IC2
Microcontroller
(e.g. XC866)
D2
D3
D4
D5
D6
D7
D8
D9
D10
ROVL
IC1
TLD5097
5
Diagnosis
ST
PWMI
6
FBH
IVCC
13
11
8
Digital Dimming
EN / PWMI
1
RPOL
CIVCC
DPOL
Clock / Spread Spectrum
FREQ / SYNC
COMP
CCOMP
7
FBL
RFREQ
RCOMP
GND
12
LED load seperated
via wire harness
Figure 1
Typical application: Boost LED driver
Type
Package
Marking
TLD5097EP
PG-TSDSO-14
TLD5097
Datasheet
www.infineon.com
1
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Potential applications
Potential applications
•
•
•
Automotive exterior and interior lighting
General illumination
General purpose current/voltage controlled DC/DC driver
Features
•
•
•
•
•
•
•
•
•
•
•
Fixed current or fixed voltage configuration in Boost, Buck, Buck-Boost, SEPIC and Flyback Topology
Drives low side external n-channel switching MOSFET from internal 5 V voltage regulator
Flexible switching frequency range from 100 kHz to 500 kHz, synchronization with external clock source
Wide input voltage range from 4.5 V to 45 V
Enable & PWM function with very low shutdown current: IQ_OFF < 10 µA
Analog dimming and PWM dimming feature to adjust average LED current
Low active status output for fault communication
Integrated protection and diagnostic functions
Internal soft start
300 mV high-side current sense
Available in a small thermally enhanced 14-pin PG-TSDSO-14 package, green product (RoHS) compliant
Table 1
Feature
Product summary
Symbol
VIN
Range
Nominal supply voltage range
Extended supply voltage range
8 V ... 34 V
VIN
4.5 V ... 45 V
VIVCC > VIVCC,RTH,d ; parameter deviations possible
Switching frequency range
fFREQ
100 kHz ... 500 kHz oscillator frequency adjustment
range
250 kHz ... 500 kHz synchronization frequency
capture range
Maximum duty cycle
Dmax,fixed
91% ...95% fixed frequency mode
88% synchronization mode
380 mA
Dmax,synced
Typical gate driver peak sourcing current ISWO,SRC
Typical gate driver peak sinking current ISWO,SNK
550 mA
Protection and diagnostic functions
•
•
•
•
Open circuit detection
Output overvoltage protection
Overtemperature shutdown
Electrostatic discharge (ESD) protection
Product validation
Qualified for automotive applications. Product validation according to AEC-Q100/101.
Datasheet
2
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Table of contents
Table of contents
1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Potential applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Protection and diagnostic functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Product validation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2
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 synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Typical performance characteristics of oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.1
6.2
6.3
7
7.1
7.2
Enable and dimming function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
8
8.1
8.2
Linear regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
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
13
Package outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Datasheet
3
Rev.1.00
2018-12-13
LITIX™ Power
TLD5097EP
Block diagram
2
Block diagram
14
13
LDO
1
IN
IVCC
SWO
Power on
reset
Internal
supply
EN_INT/
PWM_INT
On/Off
logic
EN / PWMI
Power switch
gate driver
Soft
Start
2
Oscillator
11
FREQ/SYNC
PWM
Generator
4
SWCS
SGND
Switch current error
amplifier
Slope
Comp.
3
Thermal
protection
Leading edge
blanking
Diagnostic
logic
Overvoltage
protection
ST
5
9
OVFB
Open load
Reference current
generator
10
8
SET
6
7
FBH
FBL
Feedback voltage error
amplifier
COMP
12
GND
Figure 2
Block diagram TLD5097EP
Datasheet
4
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
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
FREQ/SYNC
ST
SET
FBH
OVFB
COMP
EP
FBL
8
Figure 3
Pin configuration TLD5097EP
3.2
Pin definitions and functions
Table 2
Pin definition and function
#
Symbol
Direction Function
1
IVCC
Output
Internal LDO
Used for internal biasing and gate drive. Bypass with external
capacitor. Pin must not be left open
2
3
4
5
6
7
8
SWO
SGND
SWCS
ST
Output
–
Switch gate driver
Connect to gate of external switching MOSFET
Current Sense Ground
Ground return for switch current sense
Input
Output
Input
Input
Input
Current Sense
Detects the peak current through switch
Status
to indicate fault conditions
FBH
Voltage Feedback Positive
Non inverting Input (+)
FBL
Voltage Feedback Negative
Inverting Input (-)
COMP
Compensation
Connect R and C network to pin for stability
Datasheet
5
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Pin configuration
Table 2
Pin definition and function
#
Symbol
Direction Function
9
OVFB
Input
Overvoltage Protection Feedback
Connect to resistive voltage divider to set overvoltage threshold
10
11
SET
Input
Analog dimming
Load current adjustment Pin. Pin must not be left open. If analog
dimming feature is not used connect to IVCC pin
FREQ / SYNC
Input
Frequency Select or Synchronization
Connect external resistor to GND to set frequency.
Or apply external clock signal for synchronization within frequency
capture range
12
13
GND
–
Ground
Connect to system ground
EN / PWMI
Input
Enable or PWM
Apply logic HIGH signal to enable device or PWM signal for dimming
LED
14
IN
Input
–
Supply Input
Supply for internal biasing
EP
Exposed Pad
Connect to external heat spreading GND Cu area (e.g. inner GND layer
of multilayer PCB with thermal vias)
Datasheet
6
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
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 3
Absolute maximum ratings1)
Symbol
Parameter
Values
Typ.
Unit Note or
Test Condition
Number
Min.
Max.
Voltage
IN
VIN
-0.3
-40
-40
–
–
–
45
45
61
V
V
V
–
P_4.1.1
P_4.1.2
Supply input
EN / PWMI
Enable or PWM Input
VEN
–
FBH-FBL;
Feedback error amplifier
differential
VFBH- VFBL
The maximum delta P_4.1.3
must not exceed
61 V
Differential signal
(not referred to
GND)
FBH;
VFBH
-40
-40
–
–
61
61
V
V
The difference
between VFBH and
P_4.1.4
P_4.1.5
Feedback error amplifier
positive input
V
FBL must not
exceed 61 V, refer to
P_4.1.3
FBL
VFBL
The difference
Feedback error amplifier
negative input
between VFBH and
V
FBL must not
exceed 61 V, refer to
P_4.1.3
FBH and FBL current
IFBH, IFBL
1
–
mA
V
t < 100 ms;
VFBH - VFBL = 0.3 V
P_4.1.6
P_4.1.7
OVFB
VOVP
-0.3
-0.3
5.5
6.2
–
Overvoltage feedback
input
OVFB
VOVP
–
V
t < 10 s
P_4.1.8
Overvoltage feedback
input
SWCS
VSWCS
VSWCS
VSWO
-0.3
-0.3
-0.3
–
–
–
5.5
6.2
5.5
V
V
V
–
P_4.1.9
Switch current sense input
SWCS
t < 10 s
–
P_4.1.10
P_4.1.11
Switch current sense input
SWO
Switch gate drive output
Datasheet
7
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
General product characteristics
Table 3
Absolute maximum ratings1)
Parameter
Symbol
Values
Typ.
–
Unit Note or
Test Condition
Number
Min.
Max.
SWO
VSWO
-0.3
6.2
V
t < 10 s
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
P_4.1.20
P_4.1.21
P_4.1.22
Switch gate drive output
SGND
VSGND
VCOMP
VCOMP
-0.3
-0.3
-0.3
–
–
–
–
–
–
–
–
–
–
0.3
5.5
6.2
5.5
6.2
5.5
6.2
2
V
–
Current sense switch GND
COMP
Compensation input
V
–
COMP
Compensation input
V
t < 10 s
FREQ / SYNC; Frequency
and synchronization input
VFREQ/SYNC -0.3
VFREQ/SYNC -0.3
V
–
FREQ / SYNC; Frequency
and synchronization input
V
t < 10 s
ST
VST
-0.3
-0.3
-2
V
–
Status output
ST
VST
V
t < 10 s
Status output
ST
IST
mA
V
–
–
–
Status output
SET
VSET
VIVCC
-0.3
-0.3
45
Analog dimming input
IVCC
5.5
V
Internal linear voltage
regulator output
IVCC
VIVCC
-0.3
–
6.2
V
t < 10 s
P_4.1.23
Internal linear voltage
regulator output
Temperature
Junction temperature
Storage temperature
ESD Susceptibility
ESD resistivity of all pins
TJ
-40
-55
–
–
150
150
°C
°C
–
–
P_4.1.24
P_4.1.25
Tstg
VESD,HBM
VESD,HBM
-2
-4
–
–
2
4
kV
kV
HBM2)
HBM2)
P_4.1.26
P_4.1.27
ESD resistivity of IN,
EN/PWMI, FBH, FBL and
SET pin to GND
ESD resistivity
VESD_CDM
-500
-750
–
–
500
750
V
V
CDM3)
CDM3)
P_4.1.28
P_4.1.29
ESD resistivity corner pins VESD_CDM
1) Not subject to production test, specified by design
2) ESD susceptibility, Human Body Model “HBM” according to AEC Q100-002
3) ESD susceptibility, Charged Device Mode “CDM” according to AECQ100-011
Datasheet
8
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
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
Functional range
Symbol
Parameter
Values
Typ.
–
Unit Note or
Test Condition
Number
Min.
Max.
1)
Extended supply
voltage range
VIN
4.5
45
V
V
> VIVCCT,RTH,d
;
P_4.2.1
IVCC
parameter deviations
possible
Nominal supply
voltage range
VIN
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.
Datasheet
9
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
General product characteristics
4.3
Thermal resistance
Note:
This thermal data was generated in accordance with JEDEC JESD51 standards. For further
information visit https://www.jedec.org
Table 5
Thermal resistance
Parameter
Symbol
Values
Typ.
16
Unit Note or
Test Condition
Number
Min.
Max.
1)2)
Junction to Case
RthJC
–
–
–
–
–
–
–
–
K/W
P_4.3.1
P_4.3.2
P_4.3.3
P_4.3.4
Junction to Ambient RthJA
Junction to Ambient RthJA
Junction to Ambient RthJA
53
K/W 1)3) 2s2p
K/W 1)3)1s0p + 600mm2
K/W 1)3) 1s0p + 300mm2
71
83
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 dissipates 1 W
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 1.5 mm board. The 2s2p board has
2 outer copper layers (2 x 70 µm Cu) and 2 inner copper layers (2 x 35 µm Cu), A thermal via (diameter = 0.3 mm and
25 µm 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 dissipates 1 W
Datasheet
10
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Switching regulator
5
Switching regulator
5.1
Description
The TLD5097EP 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 (P_5.2.9) to minimize potential overvoltage at the output.
OV FB
H when
OVFB >1.25V
OVFB
9
8
Vref =1.25V
UV IVCC
High when
IVCC < 4.0V
COMP
Vref =4.0V
NOR
FBH 6
Current
Comp
Gate Driver
Supply
x1
EA
1 IVCC
2 SWO
gmEA
High when
EA - ISLOPE - ICS > 0
>
1
Output Stage
OFF when Low
l
INV
1
R
S
OFF
IEA
Q
FBL
SET
7
&
when H
0 if SET < 1.6V
0
Low when
j > 175 °C
Gate
Driver
10
1
R
T
Q
ꢀ
ꢅ
ꢁꢂꢃ − 0.1ꢄ
5
&
&
Soft start
Vre f =0.3V
&
Q
Current
Sense
ISLOPE
PWM-FF
Oscillator
Slope Comp
I
4
3
SWCS
SGND
NAND 2
S
t
Q
FREQ/
SYNC
11
ICS
&
Error-FF
Clock
Figure 4
Switching regulator block diagram
Datasheet
11
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
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 6
Electrical characteristics: Switching regulator
Parameter
Symbol
Values
Typ.
Unit Note or
Test Condition
Number
Min.
Max.
Regulator
Feedback reference
voltage
VREF
0.29
0.30
0.06
–
0.31
V
refer to Figure 29 P_5.2.1
VREF = VFBH - VFBL
VSET = 5 V
ILED =350 mA
Feedback reference
voltage
VREF
0.057
–
0.063
5
V
refer to Figure 29 P_5.2.2
VREF= VFBH - VFBL
VSET= 0.4 V
ILED=70 mA
Feedback reference
voltage offset
VREF_offset
mV
refer to Figure 17 P_5.2.3
and Figure 29
V
REF= VFBH - VFBL
VSET= 0.1 V
OUT > VIN
%/V refer to Figure 29 P_5.2.4
IN = 8 V to 19 V;
VSET = 5 V;
LED = 350 mA
%/A refer to Figure 29 P_5.2.5
SET = 5 V;
LED = 100 to
V
Voltage line regulation (∆VREF
/
–
–
–
–
0.15
5
V
REF) / ∆VIN
V
I
Voltage load regulation (∆VREF
/
V
REF) / ∆IBO
V
I
500 mA
Switch peak
overcurrent threshold
VSWCS
DMAX,fixed
DMAX,sync
tSS
130
91
150
93
170
95
mV
%
VFBH= VFBL = 5 V
VCOMP = 3.5 V
P_5.2.6
P_5.2.7
P_5.2.8
Maximum duty cycle
Maximum duty cycle
Soft start ramp
Fixed frequency
mode
88
–
–
%
Synchronization
mode
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
VFBH - VFBL = 0.3 V
VSWCS = 150 mV
P_5.2.10
P_5.2.11
P_5.2.12
Feedback high input
current
IFBL
IFBL
15
10
21
50
12
27
µA
µA
Feedback low input
current
Switch current sense
input current
ISWCS
100
Datasheet
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Switching regulator
Table 6
Electrical characteristics: Switching regulator
Parameter
Symbol
Values
Typ.
–
Unit Note or
Test Condition
Number
Min.
Max.
Input undervoltage
shutdown
VIN,off
VIN,on
3.5
4.5
V
VIN decreasing
VIN increasing
1)
P_5.2.13
P_5.2.14
Input voltage startup
–
–
4.85
V
Gate driver for external switch
Gate driver peak
sourcing current
ISWO,SRC
–
380
550
30
20
–
–
mA
mA
ns
ns
V
V
= 1 V to 4 V P_5.2.15
SWO
1)
1)
Gate driver peak sinking ISWO,SNK
current
–
–
V
= 4 V to 1 V P_5.2.16
SWO
Gate driver output rise tR,SWO
time
–
60
40
5.5
C
= 3.3 nF;
P_5.2.17
P_5.2.18
P_5.2.19
L,SWO
VSWO = 1 V to 4 V
1)
Gate driver output fall tF,SWO
time
–
C
= 3.3 nF;
L,SWO
VSWO = 4 V to 1 V
1)
Gate driver output
voltage
VSWO
4.5
C
= 3.3 nF
L,SWO
1) Not subject to production test, specified by design
Datasheet
13
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Oscillator and synchronization
6
Oscillator and synchronization
6.1
Description
Rfreq 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.
TLD5097
FREQ
/ SYNC
Oscillator
PWM
Logic
Gate
Driver
SWO
Multiplexer
Clock Frequency
Detector
VCLK
RFREQ
Figure 5
Oscillator and synchronization block diagram and simplified application circuit
T
SYNC = 1 / fSYNC
tSYNC,PWH
VSYNC
VSYNC,H
VSYNC,L
t
Figure 6
Synchronization timing diagram
Datasheet
14
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Oscillator and synchronization
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 7
Electrical characteristics: Oscillator and synchronization
Parameter
Symbol
Values
Typ.
Unit Note or
Test Condition
Number
Min.
Max.
Oscillator
Oscillator frequency
fFREQ
fFREQ
250
100
300
–
350
500
kHz
kHz
RFREQ = 20 kΩ
P_6.2.1
P_6.2.2
Oscillator frequency
adjustment range
–
FREQ / SYNC supply
current
IFREQ
–
–
-700
1.32
µA
V
VFREQ = 0 V
P_6.2.3
Frequency voltage
VFREQ
1.16
1.24
fFREQ = 100 kHz P_6.2.4
Synchronization
Synchronization
frequency capture range
fSYNC
250
3.0
–
–
–
–
–
500
–
kHz
V
–
P_6.2.5
P_6.2.6
P_6.2.7
P_6.2.8
1)2)
Synchronization signal VSYNC,H
high logic level valid
1)2)
1)2)
Synchronization signal VSYNC,L
low logic level valid
0.8
–
V
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
Datasheet
15
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Oscillator and synchronization
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[kΩ ]
Figure 7
Switching frequency fSW versus frequency select resistor to GND RFREQ
Datasheet
16
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Enable and dimming function
7
Enable and dimming function
7.1
Description
The enable function powers the device on or off. A valid logic “low”signal on enable pin EN/PWMI powers “off”
the device and current consumption is less than IQ_OFF (P_7.1.8). 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 a 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 P_7.1.6).
LBO
DBO
CBO
RFB
IN
14
Enable
Enable
IVCC
SWO
1
LDO
EN / PWMI
TSW
Enable / PWMI
Logic
Gate
driver
13
2
Microcontroller
RSWCS
Figure 8
Block diagram and simplified application circuit enable and LED dimming
Datasheet
17
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
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
Normal
SWO On
ST On
Dim
Normal
SWO On
ST On
Dim
Normal
SWO On
ST On
IQ_OFF < 10 μA
ST Off
ST Off
SWO Off
SWO Off
Figure 9
Timing diagram enable and LED dimming
Note:
The ST signal is “low” during soft-start.
Datasheet
18
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Enable and dimming function
7.2
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 8
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
P_7.1.6
P_7.1.7
Enable/PWMI
turn off threshold
–
–
0.8
400
30
1
V
–
1)
Enable/PWMI
hysteresis
200
–
mV
µA
µA
ms
µs
Enable/PWMI
high input current
IEN/PWMI,H
IEN/PWMI,L
tEN,OFF,DEL
–
VEN/PWMI = 16.0 V
VEN/PWMI = 0.5 V
Enable/PWMI
low input current
–
0.1
10
–
Enable turn off
delay time
8
12
–
–
1)
Enable startup time tEN,START
100
Current consumption
Current
consumption,
shutdown mode
IQ_OFF
–
–
–
–
10
7
µA
VEN/PWMI = 0.8 V;
TJ ≤ 105°C;
VIN = 16V
2)
P_7.1.8
Current
IQ_ON
mA
V
≥ 4.75 V; P_7.1.9
EN/PWMI
consumption,
active mode
IBO = 0 mA;
SWO = 0% duty
cycle
V
1) Not subject to production test, specified by design
2) Dependency on switching frequency and gate charge of external switches
Datasheet
19
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Linear regulator
8
Linear regulator
8.1
Description
The internal linear voltage regulator supplies the internal gate drivers with a typical voltage of 5 V and current
up to ILIM,min (P_8.1.2). An external output capacitor with ESR lower than RIVCC,ESR (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
EN / PWMI
13
Gate
Drivers
Figure 10 Voltage regulator block diagram and simplified application circuit
Datasheet
20
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Linear regulator
8.2
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 9
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
0.1 mA ≤ IIVCC ≤ 40 mA
Output current
limitation
51
–
90
mA
VIN = 13.5 V
V
IVCC = 4.5 V
Current flows out of
pin
Drop out voltage
VDR
–
0.5
100
0.5
–
V
VIN = 4.5 V
P_8.1.3
P_8.1.4
P_8.1.5
P_8.1.6
P_8.1.7
I
IVCC = 25 mA
1)2)
IVCC buffer
capacitor
CIVCC
0.47
–
1
–
–
–
µF
Ω
1)
IVCC buffer
capacitor ESR
RIVCC, ESR
Undervoltage reset VIVCC,HDRM
headroom
100
3.6
mV
V
VIVCC decreasing
VIVCC - VIVCC,RTH,d
3)
IVCC undervoltage VIVCC,RTH,d
reset switch-off
4.0
V
decreasing
IVCC
threshold
IVCC undervoltage VIVCC,RTH,i
reset switch-on
–
–
4.5
V
VIVCC increasing
P_8.1.8
threshold
1) Not subject to production test, specified by design
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 the threshold voltage of the.
MOSFET must be considered.
Datasheet
21
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Protection and diagnostic functions
9
Protection and diagnostic functions
9.1
Description
The TLD5097EP 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 11 and Table 10 below). Figure 12 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 P_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 14). To
calculate the proper overvoltage protection resistor values an example is given in Figure 15.
Input
Output
Protection and
diagnostic circuit
Output
overvoltage
Open load
SWO gate driver off
ST pin low
OR
Open feedback
Overtemperature
OR
Linear regulator off
Input undervoltage
Figure 11 Protection and diagnostic function block diagram
Datasheet
22
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Protection and diagnostic functions
Table 10 Diagnosis truth table1)
Input
Output
ST
Condition
Level
SWO
Sw
IVCC
Overvoltage at output False
True
High or Sw
Low
Active
Low
Sw
Active
Open load
False
True
False
True
False
True
High or Sw
Low
Active
Low
Sw
Active
Open feedback
Overtemperature
High or Sw
Low
Active
Low
Sw
Active
High or Sw
Low
Active
Low
Sw
Shutdown
Active
Undervoltage at input False
High or Sw
True
Low
Low
Shutdown
1) Sw = Switching; False = Condition does NOT exist; True = Condition does exist
VBO
Output open circuit conditions
Open Circuit 3
Open Circuit 1
Open circuit
condition
Fault threshold voltage
VREF
Fault condition
TLD5097
1
2
3
4
Open FBH
Open FBL
-20 to -100 mV
0.5 to 1.0 V
ROVH
RFB
Overvoltage
comparator
OVFB
Open Circuit 2
D1
9
Open VBO
-20 to -100 mV
ROVL
Open LED-GND
Detected by overvoltage
VOVFB,TH
D2
D3
D4
D5
D6
D7
D8
D9
D10
VREF
Feedback voltage
error amplifier
FBH
FBL
6
7
+
VREF
-
Max Threshold = 1.0 V
Min Threshold = 0.5 V
Typical VREF = 0.3 V
Open Circuit 4
Max Threshold = -20 mV
Min Threshold = -100 mV
Figure 12 Open load and open feedback conditions
Datasheet
23
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Protection and diagnostic functions
Startup
Normal
Thermal
Shutdown
Overvoltage
2
Open Load /
Feedback
Shutdown
1
3
VIVCC
VIVCC,RTH,i
VIVCC,RTH,d
t
t
t
t
TJ,SD,HYST
TJ
1
TJ,SD
VOVFB,HYS
2
VBO
V
OVFB ≥ VOVFB,TH
VIN
3
V
FBH-VFBL
VREF,2
tSS
tSS
0.3 V Typ
VREF,1
VST
t
Figure 13 Open load, overvoltage and overtemperature timing diagram
Datasheet
24
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Protection and diagnostic functions
VEN/PWMI
H
L
t
TJ
TJSD
ΔΤ
TJSO
t
t
TA
VSWO
ILED
Ipeak
t
VST and
VIVCC
5V
t
Device
off
Overtemp
fault
Overtemp
fault
Overtemp
fault
Overtemp
fault
Normaloperation
on
on
on
Figure 14 Device overtemperature protection behavior
VOVFB
example: VOUT,max=40V
1.25mA
VOVP,max
Overvoltage protection
active
40V
1.25mA
ROVH
33.2kΩ
TLD5097
9
VOVFB,TH
OVFB
1.25V
ROVL
1kΩ
1.25V
Overvoltage protection
disabled
GND
12
t
Figure 15 Overvoltage protection description
Datasheet
25
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Protection and diagnostic functions
9.2
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 11 Electrical characteristics: Protection and diagnosis
Parameter
Symbol
Values
Typ.
Unit Note or
Test Condition
Number
Min.
Max.
Status output
1)
1)
Status output voltage VST,LOW
low
–
–
–
0.4
V
V
I = 1mA
P_9.2.1
P_9.2.2
ST
Status output voltage VST,HIGH
VIVCC -0.4
VIVCC
I = -1mA
ST
high
Temperature protection
Overtemperature
shutdown
TJ,SD
160
–
175
15
190
–
°C
°C
1) refer to Figure 14 P_9.2.3
1)
Overtemperature
TJ,SD,HYST
P_9.2.4
shutdown hystereses
Overvoltage protection
Output overvoltage
feedback threshold
increasing
VOVFB,TH
1.21
1.25
1.29
V
refer to Figure 15 P_9.2.5
Output overvoltage
feedback hysteresis
VOVFB,HYS
50
2
–
150
10
1
mV
µs
1)Output voltage
decreasing
P_9.2.6
P_9.2.7
P_9.2.8
Overvoltage reaction tOVPRR
time
–
1)Output voltage
decreasing
Overvoltage feedback IOVFB
-1
0.1
µA
VOVFB = 1.25 V
input current
Open load and open feedback diagnostics
Open load/feedback
Threshold
VREF,1,3
-100
–
–
-20
1
mV
V
refer to Figure 12 P_9.2.9
REF = VFBH - VFBL
Open circuit 1 or 3
V
Open feedback
threshold
VREF,2
0.5
refer to Figure 12 P_9.2.10
V
REF = VFBH - VFBL
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.
Datasheet
26
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Analog dimming
10
Analog dimming
This pin influences 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 > 1.6 V supply. Different application scenarios are described in Figure 18. 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. These 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. 80 mA to 400 mA) 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 = 400 mA. 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 > 1.6 V.
(10.1)
VREF
RFB
VREF
ILED
0.3V
ILED
=
→ RFB =
→ RFB =
= 750mΩ
400mA
Related electrical parameter is guaranteed with VSET = 5 V (P_5.2.1) A decrease of the average LED current can
be achieved by controlling the voltage at the SET pin (VSET) between 0.1 V and 1.6 V. The mathematical relation
is given in the formula below:
(10.2)
VSET − 0.1V
ILED
=
5 RFB
Refer to the concept drawing in Figure 17.
If VSET is equal to or smaller than 50 mV, the switching activity is stopped and ILED = 0 A.
Datasheet
27
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Analog dimming
V
FBH-FBL [mV]
Typ. 300
0
VSET [V]
Analog dimming enabled
− 0.1ꢄ
Analog enabled
ꢄ
ꢁꢂꢃ
ꢄ
ꢉꢂꢊ
ꢆꢇꢂꢈ
=
ꢆꢇꢂꢈ =
5 ∙ ꢉꢊꢋ
ꢉꢊꢋ
Figure 16 Basic relationship between VREF and VSET voltage
VREF
VOUT
RFB
FBL
IFBL
R2
FBH
ILED
6
7
Vint
IFBH
R1
V
Bandgap = 1.6V
VREF_offset
SET
+
+
10
VSET
-
-
+
Feedback voltage
error amplifier
ISET
ISET
n*ISET
R3
100mV
COMP
GND
8
12
CCOMP
RCOMP
Figure 17 Concept drawing analog dimming
Datasheet
28
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
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 TLD5097EP. The integrated voltage regulator (VIVCC) can be used to supply the µC or external
components if the current consumption does not exceed 20 mA.
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 causes 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 chosen.
3. The usage of an external resistor divider connected between IVCC (integrated 5 V regulator output and gate
buffer pin) SET and GND can be chosen 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 > 1.6 V potential
(e.g. IVCC potential)
5. Instead of a DAC the µC can provide a PWM signal and an external R-C filter produces a constant voltage for
the analog dimming. The voltage level depends 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.
Datasheet
29
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Analog dimming
+5V
Vbb
1
2
4
CIVCC
1
14
IVCC
IN
RSET2
10
D/A-Output
SET
10
SET
μC
VSET
VSET RSET1
Cfilter
GND
GND
12
12
3
VIVCC = +5V
VIVCC = +5V
1
1
IVCC
SET
IVCC
SET
Rfilter
RSET2
CIVCC
CIVCC
10
10
RSET1
GND
GND
VSET
VSET ~ VIVCC
Cfilter
Cfilter
12
12
5
+5V
1
IVCC
SET
CIVCC
PWM
10
PWM output
Rfilter
μC
(e.g. XC866)
Cfilter
VSET
GND
12
Figure 18 Analog dimming in various applications
Datasheet
30
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Analog dimming
10.3
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 12 Electrical characteristics: Protection and diagnosis
Parameter
Symbol
Values
Typ.
–
Unit Note or
Test Condition
Number
Min.
Max.
SET programming
range
VSET
0
1.6
V
1) refer to
Figure 16
P_10.3.1
1) Specified by design; not subject to production test.
Datasheet
31
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
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
Vbattery
VIN
CIN
CBO
ILED
TSW
2
4
SWO
14
IN
SWCS
RFB
VREF
RCS
V
CC or VIVCC
ROVH
3
9
SGND
OVFB
PWM
VSET
D1
10
Analog Dimming
SET
Rfilter
Cfilter
D2
D3
D4
D5
D6
D7
D8
D9
D10
ROVL
IC1
IC2
Microcontroller
(e.g. XC866)
TLD5097
PWMI
6
FBH
IVCC
13
11
8
Digital Dimming
Spread
EN / PWMI
FREQ / SYNC
COMP
1
CIVCC
RPOL
DPOL
STATUS
Spectrum
CCOMP
7
5
FBL
ST
RFREQ
RCOMP
GND
12
Figure 19 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
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
Transistor
Transistor
Infineon
Figure 20 Bill of Materials for B2G application circuit
Datasheet
32
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
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
IC2
Microcontroller
(e.g. XC866)
SET
Rfilter
ROVL
Cfilter
IC1
TLD5097
PWMI
13
11
8
Digital Dimming
EN / PWMI
6
7
FBH
FBL
Spread
Spectrum
FREQ / SYNC
COMP
STATUS
Dn
CCOMP
DPOL
RPOL
1
5
IVCC
ST
CIVCC
RFREQ
RCOMP
GND
12
Figure 21 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
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
--
EPCOS
X7R
Infineon
TLD5097
IC2
--
Infineon
XC866
IC
L1 , L2
47 uH
Coilcraft
MSS1278T-473ML
MSD1278-223MLD
Inductor
alternativ: 22uH coupled
inductor
Coilcraft
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 22 Bill of Materials for SEPIC application circuit
Datasheet
33
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Application information
DBO
VIN
V
IN = 4.5V to 45V
L1
CIN
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
VSET
D2
D3
D4
D5
D6
D7
10
Analog Dimming
SET
Rfilter
ROVL
Cfilter
IC1
TLD5097
IC2
Microcontroller
(e.g. XC866)
PWMI
13
11
8
Digital Dimming
EN / PWMI
6
7
FBH
FBL
Output
STATUS
FREQ / SYNC
COMP
CCOMP
DPOL
RPOL
Dn
1
5
IVCC
ST
CIVCC
RFREQ
RCOMP
GND
12
Figure 23 Flyback application circuit (Buck - Boost configuration)
Reference
Designator
Part
Number
Value
Manufacturer
Type
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
LED
variable
Diode
1
1
1
1
1
1
1
EPCOS
Panasonic
EPCOS
EPCOS
Infineon
Infineon
X7R, Low ESR
EEEFK1H101GP
X7R
Capacitor
Capacitor
Capacitor
Capacitor
IC
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 24 Bill of Materials for Flyback application circuit
Datasheet
34
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Application information
CBO
RFB
VIN = 4.5V to 45V
CIN
Dn
D1
Number of LEDs could be variable
independent from VIN:
→ BUCK-BOOST configuration
ILED
LBO
DBO
ISW
VOUT
TSW
2
4
SWO
SWCS
6
FBH
RCS
7
VCC or VIVCC
FBL
3
9
SGND
OVFB
ROVH
14
IN
PWM
VSET
10
Analog Dimming
SET
Rfilter
IC2
Cfilter
ROVL
Microcontroller
(e.g. XC866)
IC1
TLD5097
Diagnosis
5
ST
PWMI
13
Digital Dimming
Spread Spectrum
EN / PWMI
11
FREQ / SYNC
8
COMP
IVCC
CCOMP
1
CIVCC
GND
RFREQ
RCOMP
12
Figure 25 Boost to Battery application circuit - B2B (Buck - Boost configuration)
Reference
Designator
Part
Number
Value
Manufacturer
Type
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
LED
Diode
variable
1
1
1
1
1
1
1
EPCOS
Panasonic
EPCOS
EPCOS
Infineon
Infineon
X7R, Low ESR
EEEFK1H101GP
X7R
Capacitor
Capacitor
Capacitor
Capacitor
IC
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 26 Bill of Materials for B2B application circuit
Datasheet
35
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Application information
DBO
D1
D2
CBO
VREF
LBO
Vbattery
ILED
CIN
RFB
BUCK Setup:
VIN > VOUT
14
IN
IC1
TLD5097
VCC or VIVCC
6
FBH
FBL
PWM
VSET
Analog Dimming
10
SET
7
1
Rfilter
IC2
Cfilter
IVCC
Microcontroller
(e.g. XC866)
Diagnosis
CIVCC
RPOL
RPOL
5
ST
PWMI
TSW
2
4
SWO
SWCS
13
11
8
Digital Dimming
Spread Spectrum
EN / PWMI
FREQ / SYNC
COMP
RCS
3
9
SGND
OVFB
CCOMP
RFREQ
RCOMP
GND
12
Figure 27 Buck application circuit
Reference
Value
Part
Number
Manufacturer
Type
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
LED
Diode
Diode
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
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
SMS - Power Resistor
IPG20N10S4L-22
IPD30N06S4L-23
RFREQ
RCS
TSW
Infineon
Figure 28 Bill of Materials for Buck application circuit
Datasheet
36
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Application information
IBO
ILoad
DRV
L1
VIN
LBO
DBO
VBO
VBATT
CBO
CIN
ISW
constant
VOUT
C1
C2
RL
2
3
TSW
SWO
14
1
IN
VCC or VIVCC
SWCS
IVCC
RCS
CIVCC
ROVH
4
9
SGND
OVFB
5
Diagnosis
Dimming
ST
RST
10
SET
ROVL
IC2
IC1
TLD5097
Microcontroller
(e.g. XC866)
RFB1
13
11
8
PWM
EN / PWMI
FREQ / SYNC
COMP
6
7
FBH
FBL
CLK/Spread
Spectrum
RFB2
VREF
CCOMP
RFB3
RFREQ
RCOMP
GND
12
Figure 29 Boost voltage application circuit
Reference
Designator
Part
Number
Value
Manufacturer
Vishay
Type
Quantity
1
DBO
Schottky, 3 A, 100 VR
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
Capacitor
Capacitor
IC
1
1
1
1
1
1
1
1
1
1
1
1
1
X7R
--
TLD5097
IC2
--
Infineon
XC866
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 30 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.
Datasheet
37
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
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”
Datasheet
38
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Package outlines
12
Package outlines
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Figure 31 Outline PG-TSDSO-141)
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).
Further information on packages
https://www.infineon.com/packages
1) Dimensions in mm
Datasheet
39
Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Revision history
13
Revision history
Revision Date
Changes
1.00
2018-12-13
Initial datasheet
Datasheet
40
Rev. 1.00
2018-12-13
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Document reference
LITIX™ Power TLD5097EP Rev.1.00
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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