參數(shù)資料
型號: L6566B
廠商: 意法半導體
英文描述: Multi-mode controller for SMPS
中文描述: 多模式開關(guān)電源控制器
文件頁數(shù): 13/51頁
文件大?。?/td> 401K
代理商: L6566B
L6566B
Electrical characteristics
13/51
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
Total variation
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 = 6V; 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 > 5V, V
VFF
= 0.3V
12
15
18
μA
V
AC_OK_CL
Clamp level
(1)
I
AC_OK
= 100
μ
A
3
3.15
3.3
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 5. Electrical characteristics (continued)
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