L6574D013TR STMicroelectronics, L6574D013TR Datasheet - Page 5

IC DRIVER BALLAST CFL/TL 16SOIC

L6574D013TR

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

Specifications of 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)
Product
Half-Bridge Drivers
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
For Use With
497-8225 - BOARD EVAL BASED ON L6574497-5576 - BOARD EVAL L6574 STD7NS20T4497-3823 - EVAL BOARD FOR HF TL BALLAST
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-4018-2

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
L6574D013TR
Manufacturer:
ST
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Manufacturer:
STMicroelectronics
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Manufacturer:
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High/Low Side Driving Section:
High and low side driving sections provide the proper drive to the external power MOSFET. A high sink/
source driving current (450/250 mA typical) ensures fast switching times when a size 4 external power
MOSFET needs to be driven.
Bootstrap Section:
A patented integrated bootstrap section replaces an external bootstrap diode. This section together with
a bootstrap capacitor provides the bootstrap voltage to drive the high side power 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. During tpre, the output is switching at fpre (see Oscillator Section).
When the tpre expires, the Cpre capacitor is discharged and then recharged with a different current. This
sets a second time interval tsh (0.1 times the selected preheat time tpre) during which frequency shifting
from fpre to fing is performed to ensure lamp ignition.
ELECTRICAL CHARACTERISTCS (continued)
(V
Timing Section
Sense OP AMP
Comparators
Symbol
S
V
GBW
t
I
V
R
I
Gdc
V
k
pulse
out +
V
out -
V
k
thpre
= 12V; V
l
hy
pre
ib
out
the
fs
io
ic
e
Pin
6,7
6,7
8,9
1
5
BOOT
Pre Heat Timing constant
Frequency Shift Timing Constant
Pre Heat Timing Comparator
Threshold
Input Bias current
Input Offset Voltage
Ouput Resistance
Sink Output Current
Source Output Current
Common Mode Input Range
Sense Op Amp Gain Band Width
Product
DC Open Loop Gain
Enabling Comparators Threshold
Enabling Comparators Hysteresis
Minimum Pulse lenght
-V
OUT
= 12V; T
Parameter
amb
= 25°C)
C
C
V
V
out
out
pre
pre
= 0.2V
= 4.5V
= 330nF
= 330nF
Test Condition
0.115
Min.
1.15
0.56
-0.2
200
3.3
-10
0.5
0.5
20
Typ.
0.15
200
1.5
3.5
0.6
80
1
0.185
Max.
1.85
0.64
300
100
3.7
0.1
10
3
L6574
MHz
Unit
s/ F
s/ F
mV
mA
mA
mV
dB
ns
V
V
V
A
5/10