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L6520TR Fiches technique(PDF) 6 Page - STMicroelectronics

No de pièce L6520TR
Description  Highly integrated ballast controller for TL and CFL
Download  19 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

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Electrical characteristics
L6520, L6521
6/19
Doc ID 16998 Rev 3
4
Electrical characteristics (a)
VCC = 16 V, TA = -25 °C to 85 °C, unless otherwise specified
a.
This is a preliminary version: all the parameters are subject to change
Table 5.
Electrical characteristics
Symbol
Pin
Parameter
Test condition
Min. Typ. Max.
Unit
Supply voltage
VCC
VCC
Operating range
After turn-on (1)
10.5
VZ
V
VCC(ON)
VCC
Turn-on threshold
13.5
15
16.5
V
VCC(OFF)
VCC
Turn-off threshold
10.5 11.5
12.5
V
VZ
VCC
Zener voltage
IZ = 2 mA
16.5 17.5
18.5
V
Supply current
IST-UP
VCC
Start-up current
Before turn-on, (VCC = 13 V)
130
200
µA
ICC
VCC
Operating supply current
No load
8
10
mA
IQ
VCC
Quiescent current
IDLE mode, (2)
150
220
µA
Timing and oscillator
D
Output duty cycle
Run mode
49.5
50
50.5
%
tDEAD
Fixed dead time
(3)
1.24 1.42
1.6
µs
fRUN
HB run frequency
TAMB = 25° C
46
46.6
47.2
kHz
43.2
47.8
kHz
fPRE
Max programmable
preheating frequency
RFPRE = 24.9 kΩ
96
100
104
kHz
tPRE
Preheating time
RFPRE ≥ 196 Ω,
(1), (4), L6520
1.5
s
RFPRE ≥ 196 Ω,
(2), (4), L6521
0.8
fINS
HB instant start initial
frequency
FPRE connected to GND, (2)
85
kHz
dfIGN/dt
Ignition time frequency sweep
rate
(4), T
AMB = 25 °C
-2.75
kHz/ms
dfCCC/dt
Frequency sweep rate after
overcurrent
(4), T
AMB = 25 °C
-500
Hz/ms
IFPRE
FPRE
FPRE current reference
TAMB = 25 °C
200
202
204
µA
192
204
tON,min
HSD LSD Minimum half bridge on time
TAMB = 25 °C
1
µs
Half bridge drivers
VOL
HSD LSD Output low voltage
Iload = 300 mA
3
V


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