E-L6574D013TR STMicroelectronics, E-L6574D013TR Datasheet

IC DRIVER BALLAST CFL/TL 16SOIC

E-L6574D013TR

Manufacturer Part Number
E-L6574D013TR
Description
IC DRIVER BALLAST CFL/TL 16SOIC
Manufacturer
STMicroelectronics
Type
CCFL Driverr
Datasheet

Specifications of E-L6574D013TR

Frequency
60 ~ 120 kHz
Current - Supply
2mA
Current - Output
450mA
Voltage - Supply
10 V ~ 15.6 V
Operating Temperature
-40°C ~ 125°C
Package / Case
16-SOIC (3.9mm Width)
Rise Time
120 ns
Fall Time
80 ns
Supply Voltage (min)
10 V
Supply Current
25 mA
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Bridge Type
Half Bridge
Minimum Operating Temperature
- 40 C
Number Of Drivers
2
Number Of Outputs
2
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-4587-2
DESCRIPTION
In order to ensure voltage ratings in excess of
600V, the L6574 is manufactured with BCD OFF
LINE technology, which makes it well suited for
lamp ballast applications.
BLOCK DIAGRAM
September 2003
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 VOLTAGE LOCK OUT
PREHEAT AND FREQUENCY SHIFTING
TIMING
SENSE OP AMP FOR CLOSED LOOP
CONTROL OR PROTECTION FEATURES
HIGH ACCURACY CURRENT CONTROLLED
OSCILLATOR
INTEGRATED BOOTSTRAP DIODE
CLAMPING ON VS.
SO16, DIP 16 PACKAGES
R
R
PRE
ING
Cf
OPOUT
OPIN+
OPIN-
CFL/TL BALLAST DRIVER PREHEAT AND DIMMING
Imax
Imin
OP AMP
VCO
+
-
V
REF
V
REF
CONTROL
LOGIC
V
S
DETECTION
+
+
-
-
DEAD
TIME
UV
Vthpre
Ifs
Ipre
C
PRE
The device is intended to drive two power MOS-
FETS, in the classical half bridge topology, ensur-
ing all the features needed to drive and properly
control a fluorescent bulb.
A dedicated timing section in the L6574 allows the
user set the necessary parameters for proper pre-
heat and ignition of the lamp.
Also, an OP AMP is available to implement closed
loop control of the lamp current during normal
lamp burning.
An integrated bootstrap section, eliminating the nor-
mally required bootstrap diode and the zener clamp-
ing on Vs, makes the L6574 well suited for low cost
applications where few additional components are
needed to build a high performance ballast.
BOOTSTRAP
DRIVING
DRIVER
LOGIC
LVG DRIVER
SO16N
L6574D
SHIFTER
DRIVER
LEVEL
HVG
ORDERING NUMBERS:
+
+
-
-
V
V
THE
THE
D97IN493A
V
S
V
HVG
OUT
LVG
GND
EN1
EN2
BOOT
DIP16
L6574
C
L6574
BOOT
LOAD
H.V.
1/10

Related parts for E-L6574D013TR

E-L6574D013TR Summary of contents

Page 1

... An integrated bootstrap section, eliminating the nor- mally required bootstrap diode and the zener clamp- ing on Vs, makes the L6574 well suited for low cost applications where few additional components are needed to build a high performance ballast. V ...

Page 2

... Non Inverting Input of the operational amplifier. 8 EN1 Enable 1. This pin (active high), forces the device in a latched shutdown state (like in the under voltage conditions). There are two ways to resume normal operation: – the first is to reduce the supply voltage below the undervoltage threshold and then increase it again until the valid supply is recognised. – ...

Page 3

... Supply Voltage. This pin, connected to the supply filter capacitor, is internally clamped (15.6V typical). 13 N.C. Non Connected. This pin set a distance between the pins related to the HV and those related to the LV side. 14 OUT High Side Driver Floating Reference. This pin must be connected close to the source of the high side power MOS or IGBT ...

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 CHARACTERISTCS (V = 12V 12V BOOT OUT Symbol Pin Parameter Supply Voltage Turn On Threshold suvp ...

Page 5

... MOSFET. This function is achieved using a high voltage DMOS driver which is driven synchronously with the low side external power MOSFET. For a safe operation, current flow into the Vboot pin is inhibited, even though ZVS operation may not be ensured. Timing Section: To set the proper preheat time (tpre=kpre*Cpre) for the bulb, a capacitor is connected to the Cpre pin which is charged with a fixed current ...

Page 6

... Short pulses (>200nsec) at the comparator inputs are rec- ognized. The EN1 input (active high) forces the L6574 in the shut down state (e.g. LVG low, HVG low, oscillator stopped) in the event of an undervoltage condition. Normal operating condition is resumed after a power- off power-on sequence or when EN2 input is high ...

Page 7

... Figure ING ING f ING (KHz) 100 Figure with R PRE f (KHz) RING=33K Figure with R PRE f (KHz) RING=50K 100 Figure 4. f vs. R D98IN867 (KHz) 100 100 ING = 33k Figure 5. f ING f D98IN868 ING (KHz) 100 PRE = 50k Figure 6. f ING ...

Page 8

... G 4.6 5.3 0.181 L 0.4 1.27 0.016 M 0.62 8˚(max.) S (1) D and F do not include mold flash or protrusions. Mold flash or potrusions shall not exceed 0.15mm (.006inch). 8/10 inch MIN. TYP. MAX. 0.069 0.009 0.063 Weight: 0.20gr 0.018 0.010 0.020 0.394 0.244 ...

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 0.010 0.787 0.335 0.100 0.700 0.280 0.201 0.130 0.050 L6574 OUTLINE AND DIP16 9/10 ...

Page 10

... STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics. Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States ...

Related keywords