Datasheet
L6566B Electrical characteristics
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Symbol Parameter Test condition Min Typ Max Unit
Reference voltage
V
REF
Output voltage
(1)
T
J
= 25 °C; I
REF
= 1 mA 4.95 5 5.05 V
V
REF
To ta l va r ia t i o n
I
REF
= 1 to 5 mA,
Vcc = 10.6 to 23 V
4.9 5.1 V
I
REF
Short circuit current V
REF
= 0 10 30 mA
Sink capability in UVLO Vcc = 6 V; Isink = 0.5 mA 0.2 0.5 V
V
OV
Overvoltage threshold 5.3 5.7 V
Internal oscillator
f
sw
Oscillation frequency
Operating range 10 300
kHz
T
J
= 25 °C, V
ZCD
= 0,
MODE/SC = open
95 100 105
Vcc =12 to 23 V, V
ZCD
= 0,
MODE/SC = open
93 100 107
V
OSC
Voltage reference
(3)
0.97 1 1.03 V
D
max
Maximum duty cycle
MODE/SC = open,
V
COMP
= 5 V
70 75 %
Brownout protection
Vth Threshold voltage
Voltage falling (turn-off) 0.432 0.450 0.468 V
Voltage rising (turn-on) 0.452 0.485 0.518 V
I
Hys
Current hysteresis Vcc > 5 V, V
VFF
= 0.3 V 12 15 18 µA
V
AC_OK_CL
Clamp level
(1)
I
AC_OK
= 100 μA 33.153.3 V
Line voltage feedforward
I
VFF
Input bias current
V
VFF
= 0 to 3 V, V
ZCD
< V
ZCDth
-1 µA
V
ZCD
> V
ZCDth
-0.7 -1 mA
V
VFF
Linear operation range 0 to 3 V
V
OFF
IC disable voltage 3 3.15 3.3 V
V
VFFlatch
Latch-off/clamp level V
ZCD
> V
ZCDth
6.4 V
Kc Control voltage gain
(3)
V
VFF
= 1 V, V
COMP
= 4 V 0.4 V/V
K
FF
Feedforward gain
(3)
V
VFF
= 1 V, V
COMP
= 4 V 0.04 V/V
Table 4. Electrical characteristics (continued)