EVAL6574 STMicroelectronics, EVAL6574 Datasheet
![no-image](/images/manufacturer_photos/0/6/637/stmicroelectronics_sml.jpg)
EVAL6574
Specifications of EVAL6574
Available stocks
Related parts for EVAL6574
EVAL6574 Summary of contents
Page 1
CFL/TL BALLAST DRIVER PREHEAT AND DIMMING HIGH VOLTAGE RAIL UP TO 600V dV/dt IMMUNITY ± 50 V/ns IN FULL TEMPERATURE RANGE DRIVER CURRENT CAPABILITY: 250mA SOURCE 450mA SINK SWITCHING TIMES 80/40ns RISE/FALL WITH 1nF LOAD CMOS SHUT DOWN INPUT UNDER ...
Page 2
L6574 PIN CONNECTION (top view) THERMAL DATA Symbol R Thermal Resistance Junction to ambient th j-amb PIN DESCRIPTION N° Pin 1 CPRE Preheat Timing Capacitor. The capacitor C according to the relations: t 0.15s/ F). This feature is obtained by ...
Page 3
PIN DESCRIPTION (continued) N° Pin 9 EN2 Enable 2. EN2 input (active high) restarts the start-up procedure (preheating and ignition sequence). This features is useful if the lamp does not turn-on after the first ignition sequence . 10 GND Ground. ...
Page 4
L6574 RECOMMENDED OPERATING CONDITIONS Symbol V Supply Voltage S V (*) High Side Reference OUT V (*) Floating Supply Voltage BOOT (*) If the condition Vboot - Vout < guaranteed, Vout can range from -3 to 580V. ELECTRICAL ...
Page 5
ELECTRICAL CHARACTERISTCS (continued 12V 12V BOOT OUT Symbol Pin Parameter Timing Section k 1 Pre Heat Timing constant pre k Frequency Shift Timing Constant fs V Pre Heat Timing Comparator thpre Threshold Sense ...
Page 6
L6574 Oscillator Section: A voltage controlled oscillator, with the selected frequencies fpre and fing, drives the output half bridge. Independently selected, fpre is effective during tpre and fing is effective during normal lamp burning. When working open loop, fpre and ...
Page 7
Figure ING ING f ING (KHz) 100 Figure with R PRE f (KHz) RING=33K ...
Page 8
L6574 mm DIM. MIN. TYP. MAX. A 1.75 a1 0.1 0.25 0.004 a2 1.6 b 0.35 0.46 0.014 b1 0.19 0.25 0.007 C 0.5 c1 45˚ (typ.) D (1) 9.8 10 0.386 E 5.8 6.2 0.228 e 1.27 e3 8.89 ...
Page 9
DIM. MIN. TYP. MAX. MIN. a1 0.51 0.020 B 0.77 1.65 0.030 b 0 8.5 e 2.54 e3 17.78 F 7.1 I 5.1 L 3.3 Z 1.27 inch MECHANICAL DATA TYP. MAX. 0.065 0.020 ...
Page 10
... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics ...