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TLD5097EP 英飞凌芯片 INFINEON 中文版规格书手册.pdf
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TLD5097EP 英飞凌芯片 INFINEON 中文版规格书手册
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Datasheet 1 Rev. 1.00
www.infineon.com 2018-12-13
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 I
Q_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.
Figure 1 Typical application: Boost LED driver
Type Package Marking
TLD5097EP PG-TSDSO-14 TLD5097
EN / PWMI
COMP
IN
FBH
FBL
OVFB
SWO
SWCS
FREQ / SYNC
ST
GND
SGND
IC
1
TLD5097
SET
V
IN
IVCC
C
IN
L
BO
D
BO
T
SW
R
CS
R
FREQ
R
COMP
C
COMP
C
IVCC
R
OVH
R
OVL
C
BO
R
FB
14
13
11
8
1
12
5
7
6
9
3
4
2
D
1
D
2
D
3
D
4
D
5
D
6
D
7
D
8
D
9
D
10
V
REF
I
LED
IC
2
Microcontroller
(e.g. XC866)
Digital Dimming
Clock / Spread Spectrum
10
V
CC
or V
IVCC
LED load seperated
via wire harness
R
POL
D
POL
V
IN
= 4.5V to 45V
PWMI
V
CC
or V
IVCC
R
A
R
B
Diagnosis
Datasheet 2 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: I
Q_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
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.
Table 1 Product summary
Feature Symbol Range
Nominal supply voltage range V
IN
8 V ... 34 V
Extended supply voltage range V
IN
4.5 V ... 45 V
V
IVCC
> V
IVCC,RTH,d
; parameter deviations possible
Switching frequency range f
FREQ
100 kHz ... 500 kHz oscillator frequency adjustment
range
250 kHz ... 500 kHz synchronization frequency
capture range
Maximum duty cycle D
max,fixed
91% ...95% fixed frequency mode
D
max,synced
88% synchronization mode
Typical gate driver peak sourcing current I
SWO,SRC
380 mA
Typical gate driver peak sinking current I
SWO,SNK
550 mA
Datasheet 3 Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
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
2 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1 Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.2 Pin definitions and functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 General product characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.2 Functional range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.3 Thermal resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5 Switching regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6 Oscillator and synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.3 Typical performance characteristics of oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7 Enable and dimming function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
8 Linear regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
8.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
8.2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
9 Protection and diagnostic functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
9.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
9.2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
10 Analog dimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
10.1 Purpose of analog dimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
10.2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
10.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
11 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
11.1 Further Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
12 Package outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
13 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Table of contents
Datasheet 4 Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Block diagram
2 Block diagram
Figure 2 Block diagram TLD5097EP
EN / PWMI
COMP
IN
FBL
FBH
FREQ/SYNC
GND
SET
Oscillator
14
13
10
8
11
12
3
9
6
7
SWCS
4
SWO
2
IVCC
1
Reference current
generator
LDO
OVFB
SGND
Soft
Start
Slope
Comp.
Internal
supply
On/Off
logic
Leading edge
blanking
5
ST
EN_INT/
PWM_INT
Thermal
protection
Open load
Overvoltage
protection
PWM
Generator
Power switch
gate driver
Feedback voltage error
amplifier
Power on
reset
Switch current error
amplifier
Diagnostic
logic
Datasheet 5 Rev. 1.00
2018-12-13
LITIX™ Power
TLD5097EP
Pin configuration
3 Pin configuration
3.1 Pin assignment
Figure 3 Pin configuration TLD5097EP
3.2 Pin definitions and functions
Table 2 Pin definition and function
# Symbol Direction Function
1IVCC OutputInternal LDO
Used for internal biasing and gate drive. Bypass with external
capacitor. Pin must not be left open
2SWO OutputSwitch gate driver
Connect to gate of external switching MOSFET
3SGND – Current Sense Ground
Ground return for switch current sense
4SWCS InputCurrent Sense
Detects the peak current through switch
5ST OutputStatus
to indicate fault conditions
6FBH InputVoltage Feedback Positive
Non inverting Input (+)
7FBL InputVoltage Feedback Negative
Inverting Input (-)
8COMP InputCompensation
Connect R and C network to pin for stability
IN
COMP
OVFB
SET
FREQ/SYNC
GND
EN/PWMI
IVCC
FBL
ST
SGND
SWCS
SWO
1
2
3
4
5
6
7
14
9
10
11
12
13
8
FBH
EP
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