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L6574 数据表(PDF) 4 Page - STMicroelectronics

部件名 L6574
功能描述  CFL/TL BALLAST DRIVER PREHEAT AND DIMMING
PDF  10 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L6574 数据表(HTML) 4 Page - STMicroelectronics

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L6574
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RECOMMENDED OPERATING CONDITIONS
(*) If the condition Vboot - Vout < 18 is guaranteed, Vout can range from -3 to 580V.
Symbol
Parameter
Value
Unit
VS
Supply Voltage
10 to VCL
V
VOUT (*)
High Side Reference
-1 to VBOOT-VCL
V
VBOOT (*)
Floating Supply Voltage
500
V
ELECTRICAL CHARACTERISTCS
(VS = 12V; VBOOT-VOUT = 12V; Tamb = 25°C)
Symbol
Pin
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Supply Voltage
Vsuvp
12
Vs Turn On Threshold
9.5
10.2
10.9
V
Vsuvn
Vs Turn Off Threshold
7.3
8
8.7
V
Vsuvh
Supply Voltage Under Voltage
Hysteresys
2.2
V
Vcl
Supply Voltage Clamping
14.6
15.6
16.6
V
Isu
Start Up Current
VS < Vsuvn
250
µA
Iq
Quiescent Current, fout = 60kHz,
no load.
VS > Vsupv
2mA
High voltage Section
Ibootleak
16
BOOT pin leakage current
VBOOT = 580V
5
µA
Ioutleak
14
OUT pin Leakage Current
VOUT = 562V
5
µA
High/Low Side Drivers
Ihvgso
15
High Side Driver Source Current
VHVG-VOUT = 0
170
250
mA
Ihvgsi
15
High Side Driver Sink Current
VHVG-VBOOT = 0
300
450
mA
Ihvgso
11
Low Side Drive Source Current
VLVG-GND = 0
170
250
mA
Ilvgsi
11
Low Side Drive Source Current
VLVG-VS = 0
300
450
mA
trise
15,
11
Low/High Side Output Rise Time
Cload = 1nF
80
120
ns
tfall
Low/High Side Output Fall Time
Cload = 1nF
50
80
ns
Oscillator
DC
14
Output Duty Cycle
48
50
52
%
fing
14
Minimum Output Oscillation
Frequency
CF = 470pF;
Ring = 50kΩ
58.2
60
61.8
kHz
fpre
14
Maximum Output Oscillation
Frequency
CF = 470pF;
Ring = 50kΩ;
Rpre = 47kΩ
114
120
126
kHz
Vref
2,4
Voltage to current converters
threshold
1.9
2
2.1
V
IVref
2,4
Reference Current
0
120
µA
td
14
Dead Time between Low and
High Side Conduction
0.8
1.25
1.7
µs



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