TLE4309G Infineon Technologies, TLE4309G Datasheet

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TLE4309G

Manufacturer Part Number
TLE4309G
Description
IC LED DRIVER LINEAR D2PAK
Manufacturer
Infineon Technologies
Type
Linear (Non-Switching)r
Datasheet

Specifications of TLE4309G

Package / Case
D²Pak, TO-263 (7 leads + tab)
Constant Current
Yes
Topology
Linear (LDO), PWM
Number Of Outputs
1
Internal Driver
Yes
Type - Primary
General Purpose
Voltage - Supply
4.5 V ~ 24 V
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 150°C
Current - Output / Channel
500mA
Internal Switch(s)
Yes
Number Of Segments
3
Operating Supply Voltage
4.5 V to 24 V
Maximum Operating Temperature
+ 150 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Output
-
Frequency
-
Efficiency
-
Lead Free Status / Rohs Status
 Details
Other names
SP000299342
TLE4309G
TLE4309GTR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TLE4309G
Manufacturer:
Infineon Technologies
Quantity:
1 935
Part Number:
TLE4309G
Manufacturer:
Infineon
Quantity:
800
Adjustable Linear Low Dropout LED Driver
Features
Functional Description
The TLE4309 is an integrated adjustable constant current source for driving loads up to
500 mA. The output current level can be adjusted with an external shunt resistor.
Supplying high power LEDs with the TLE4309 ensures constant brightness independent
from supply voltage or LED forward voltage spread. Therefore, LED lifetime is extended
by protecting from overcurrent and overtemperature
The PWM/EN input permits LED brightness regulation by pulse width modulation.
Setting the pin to “low” switches off the IC entirely. Due to the high impedance of the
PWM/EN input, the TLE4309 can be used as a protected high side switch.
Protection circuits prevent from damage to the IC in case of overload, short circuit, and
reverse polarity. A chip temperature monitoring circuit shuts off the power stage and
prevents the IC from destruction under fault conditions.
In case of negative input voltage, a leakage current is flowing only from the output to the
input, hence the LED are protected against reverse supply. Input voltage peaks up to
45 V are absorbed by the IC, preventing the LEDs from overcurrent.
The TLE4309G is provided in the surface mounted PG-TO-263 package with excellent
thermal resistance.
Type
TLE4309G
Datasheet
Adjustable constant current up to 500 mA
Operating supply voltage range 4.5 V to 24 V
Maximum supply voltage up to 45 V
Low dropout voltage
PWM / ENABLE input
<< 1 µA quiescent current when disabled
Overtemperature protection
Short circuit proof
Reverse polarity protection
Operating junction temperature range: -40 C to 150 C
Suitable for applications up to 85 °C ambient temperature.
Green Product (RoHS compliant)
Package
PG-TO263-7-1
1
Marking
TLE4309
PG-TO263-7
Rev. 1.0, 2007-03-20
TLE4309

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TLE4309G Summary of contents

Page 1

... In case of negative input voltage, a leakage current is flowing only from the output to the input, hence the LED are protected against reverse supply. Input voltage peaks are absorbed by the IC, preventing the LEDs from overcurrent. The TLE4309G is provided in the surface mounted PG-TO-263 package with excellent thermal resistance. Type ...

Page 2

Circuit Description An external shunt resistor in the ground path of the connected LEDs senses the LED current. A regulation loop maintains the voltage drop across the shunt resistor at a constant level. Selecting the shunt resistance permits to adjust ...

Page 3

Figure 2 Pin Configuration (top view) Table 1 Pin Definitions and Functions Pin No. Symbol Function 1 I Input. 2 PWM / Pulse Width Modulation Input / ENABLE input not needed connect to I (pin 1 ...

Page 4

Table 2 Absolute Maximum Ratings Parameter Input Voltage Current Output Voltage Current Reference Input Voltage Current Pulse Width Modulation / Enable Input Voltage Current Temperatures Junction temperature Storage temperature ESD Susceptibility ESD Resistivity 1) ESD susceptibility, HBM according to EIA/JESD ...

Page 5

Table 3 Operating Range Parameter Input voltage PWM / ENABLE voltage Junction temperature Reference resistor 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 ...

Page 6

Table 5 Electrical Characteristics 13 PWM PWM,H all voltages with respect to ground; unless otherwise specified Parameter Symbol Output I Output current Q I Output current limit Qmax V Dropout voltage dr Reference V ...

Page 7

Typical Performance Characteristics Output Current versus Reference Resistor 0.39 0.47 600 500 400 300 200 100 0 0.2 0.5 Output Current versus Supply Voltage 600 500 400 300 200 100 ...

Page 8

Package Outline 7x0.6 ±0.1 1) Typical All metal surfaces tin plated, except area of cut. Figure 3 PG-TO263-7-1 Green Product (RoHS compliant) To meet the world-wide customer requirements for environmentally friendly products and to be compliant with government regulations the ...

Page 9

Application Note: Thermal Considerations By describing an example, this section shows how the power dissipation and the needed thermal resistance can be estimated. For a typical application circuit as shown in Figure 1, the following parameters shall apply: • Number ...

Page 10

Calculating the maximum power dissipation: For calculating the maximum power dissipation, the minimum forward voltage sum of the LEDs connected in series V voltage , the IC current consumption I,MAX I current needs to be considered. Hence, the maximum ...

Page 11

... Version Date Rev. 1.0 2007-03-20 Final Datasheet and initial version of RoHS-compliant Datasheet Changes derivate of TLE4309G Page 1 and Page 8: RoHS compliance statement and green product feature added Page 1 and Page 8: Package changed to RoHS compliant version Legal Disclaimer updated 11 TLE4309 Revision History Rev. 1.0, 2007-03-20 ...

Page 12

... Infineon Technologies Office. Infineon Technologies components may be used in life-support devices or systems only with the express written approval of Infineon Technologies failure of such components can reasonably be expected to cause the failure of that life-support device or system or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain and/or protect human life ...

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