ILD4180 Infineon Technologies, ILD4180 Datasheet

no-image

ILD4180

Manufacturer Part Number
ILD4180
Description
LED Drivers MCREL 1.8A DC/DC
Manufacturer
Infineon Technologies
Type
Buckr
Datasheet

Specifications of ILD4180

Packages
PG-DSO-8
Vs (min)
4.75 V
Vs (max)
45.0 V
Iout (typ)
1,800.0 mA
Iout (max)
1,800.0 mA
Lead Free Status / Rohs Status
 Details
Other names
ILD4180XT
D a t a s h e e t , R e v . 1 . 1 , J a n u a r y 2 0 1 1
I L D 4 1 8 0
1 . 8 A D C / D C S t e p - D o w n C o n v e r t e r
L E D D r i v e r f o r I n d u s t r i a l A p p l i c a t i o n s

Related parts for ILD4180

ILD4180 Summary of contents

Page 1

...

Page 2

... Green Product (RoHS Compliant) Description The ILD4180 is a smart LED buck converter with an integrated power-switch, capable of driving up to 1.8A load current with excellent line and load regulation. The main function of this device is to step-down the input voltage and regulating a constant LED current. The constant current regulation is especially beneficial for LED color accuracy and longer lifetime ...

Page 3

... Block Diagram COMP 3 PWMI 1 Figure 1 Block Diagram Datasheet EN 7 Enable Charge Pump Over Temperature Shutdown Feedforward Buck Converter Oscillator Bandgap Soft start ramp Reference ILD5085 ILD4180 2 GND 3 Block Diagram VS 8 BDS 5 BUO generator Rev. 1.1, 20011-01-25 ILD4180 ...

Page 4

... Apply logic high signal to enable the device. A pull down resistor is integrated Supply Voltage Input; Connect to supply voltage source. EP Exposed Pad; Connect to heatsink area and GND by low inductance wiring. Datasheet ILD4180 ILD5085 S08 _ Pinout _ ILD5085 .vsd 4 ILD4180 Pin Configuration BUO 5 BDS Rev. 1.1, 20011-01-25 ...

Page 5

... Max. V -0.3 45 PWMI V -0.3 5.5 COMP 6.2 V -0.3 5 BDS BUO BUO - 0 -2.0 + 0.3 BUO -40 150 j T -55 150 stg ESD 5 ILD4180 Unit Conditions V – V – < 10s V – V – V – V – V – °C – °C – HBM Rev. 1.1, 20011-01-25 ...

Page 6

... T -40 125 j 11” for loop compensation requirements. Symbol Limit Values Min. Typ. Max. R – 10 – thJC R – 42 – thJA 6 ILD4180 General Product Characteristics Unit Conditions V – V see Figure 5 µH see Figure 5 and Figure 6 µF Ω 1) – °C – Unit Conditions ...

Page 7

... REF 2 GND Figure 3 Block Diagram Buck Regulator Datasheet Overcurrent Comp. Clock PWM Logic Comp. Temp. Sensor BDS UV Comp. 1 PWMI 7 ILD4180 Buck Regulator region, which means high DSON Charge Pump BDS Charger Gate Driver Power Switch Rev. 1.1, 20011-01-25 5 BDS 6 BUO ...

Page 8

... BDS,off BUO +3 – – – BDS V BUO D – – max t 350 500 start V 3.75 – S,off V – – S,on V 150 – S,hyst Range” 8 ILD4180 Buck Regulator Unit Conditions Max 0.612 12V S I 0.1A < < 1. 0.624 12V S I 1mA < < 1. µ ...

Page 9

... PWM frequency 1kHz@370kHz 9 Unit Conditions Max µA = 0.8V < 105° 5.0V 16V 5.0V 16V S 1) – V – 0.8 V – 1) 400 µA = 16V µA = 0.5V EN – V – 0.8 V – µs 5 µs – 1) 190 °C 1) – Rev. 1.1, 20011-01-25 ILD4180 = 16V = 0mA; = 1.8A; ...

Page 10

... Electrical Characteristics: Buck Regulator -40 ⋅C to +125 ⋅C, all voltages with respect to ground (unless otherwise specified) = 24V Pos. Parameter 7.2.1 Oscillator frequency Datasheet Symbol Limit Values Min. Typ. Max. f 330 370 420 osc 10 ILD4180 Oscillator Unit Conditions kHz – Rev. 1.1, 20011-01-25 ...

Page 11

... The compensation network is essential for the control loop stability. Leaving pin COMP open might lead to an instable operation. 8.2 Compensating a tantalum buck capacitor The ILD4180 control loop is optimized for ceramic buck capacitors tantalum capacitors with ESR up to 300mΩ, an additional compensation capacitance is required. It’s value calculates: C whereas needs to stay below 5nF ...

Page 12

... Note: This is a very simplified example of an application circuit. The function must be verified in the real application The output voltage of the ILD4180 can be programmed by a voltage divider connected to the feedback pin FB. The divider cross current should be 300 µA at minimum, therefore the maximum ...

Page 13

... VS PWM Dimming C COMP1 C COMP 2 R COMP Optional Parts Figure 6 Application Diagram ILD4180 as LED Driver (constant current mode) Note: This is a very simplified example of an application circuit. The function must be verified in the real application. Datasheet ILD4180 ILD5085 VS 8 BDS 5 EN BUO ...

Page 14

... Pb-free finish on leads and suitable for Pb-free soldering according to IPC/JEDEC J-STD-020). For further package information, please visit our website: http://www.infineon.com/packages. Datasheet C 0.08 C Seating Plane 8x 0 0 Package Outlines 0.35 x 45˚ 1) 3.9 ±0 ±0.2 D Bottom View 3 ±0 PG-DSO-8-27-PO V01 Dimensions in mm Rev. 1.1, 20011-01-25 ILD4180 ...

Page 15

... Revision History Version Date Changes Rev. 1.1 2011-01-25 Updated Thermal Section Rev. 1.0 2009-10-14 Initial Datasheet for ILD4180 Datasheet 15 ILD4180 Revision History Rev. 1.1, 20011-01-25 ...

Page 16

... 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 ...

Related keywords