L6574
RECOMMENDED OPERATING CONDITIONS
Symbol
V
S
V
OUT
(*)
V
BOOT
(*)
Supply Voltage
High Side Reference
Floating Supply Voltage
Parameter
Value
10 to V
CL
-1 to V
BOOT
-V
CL
500
Unit
V
V
V
(*) If the condition Vboot - Vout < 18 is guaranteed, Vout can range from -3 to 580V.
ELECTRICAL CHARACTERISTCS
(V
S
= 12V; V
BOOT
-V
OUT
= 12V; T
amb
= 25°C)
Symbol
Pin
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Supply Voltage
V
suvp
V
suvn
V
suvh
V
cl
I
su
I
q
12
V
s
Turn On Threshold
V
s
Turn Off Threshold
Supply Voltage Under Voltage
Hysteresys
Supply Voltage Clamping
Start Up Current
Quiescent Current, fout = 60kHz,
no load.
V
S
< V
suvn
V
S
> V
supv
2
14.6
9.5
7.3
10.2
8
2.2
15.6
16.6
250
10.9
8.7
V
V
V
V
µA
mA
High voltage Section
I
bootleak
I
outleak
16
14
BOOT pin leakage current
OUT pin Leakage Current
V
BOOT
= 580V
V
OUT
= 562V
5
5
µA
µA
High/Low Side Drivers
I
hvgso
I
hvgsi
I
hvgso
I
lvgsi
t
rise
t
fall
Oscillator
15
15
11
11
15,
11
High Side Driver Source Current
High Side Driver Sink Current
Low Side Drive Source Current
Low Side Drive Source Current
Low/High Side Output Rise Time
Low/High Side Output Fall Time
V
HVG
-V
OUT
= 0
V
HVG
-V
BOOT
= 0
VLVG-GND = 0
V
LVG
-V
S
= 0
C
load
= 1nF
C
load
= 1nF
170
300
170
300
250
450
250
450
80
50
120
80
mA
mA
mA
mA
ns
ns
D
C
f
ing
f
pre
14
14
14
Output Duty Cycle
Minimum Output Oscillation
Frequency
Maximum Output Oscillation
Frequency
Voltage to current converters
threshold
Reference Current
Dead Time between Low and
High Side Conduction
C
F
= 470pF;
R
ing
= 50kΩ
C
F
= 470pF;
R
ing
= 50kΩ;
R
pre
= 47kΩ
48
58.2
114
50
60
120
52
61.8
126
%
kHz
kHz
V
ref
I
Vref
t
d
2,4
2,4
14
1.9
0
0.8
2
2.1
120
V
µA
µs
1.25
1.7
4/10
STMICROELECTRONICS [ STMICROELECTRONICS ]
