Datasheet

Electrical characteristics L6566B
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Symbol Parameter Test condition Min. Typ. Max. Unit
Soft-start
I
SS1
Charge current
T
J
= 25 °C, V
SS
< 2 V,
V
COMP
= 4 V
14 20 26
µA
I
SS2
T
J
= 25 °C, V
SS
> 2 V,
V
COMP
=V
COMPHi
3.5 5 6.5
I
SSdis
Discharge current V
SS
> 2 V 3.5 5 6.5 µA
V
SSclamp
High saturation voltage V
COMP
= 4 V 2 V
V
SSDIS
Disable level
(1)
V
COMP
= V
COMPHi
4.85 5 5.15 V
V
SSLAT
Latch-off level V
COMP
= V
COMPHi
6.4 V
Gate driver
V
GDH
Output high voltage I
GDsource
= 5 mA, Vcc = 12 V 9.8 11 V
V
GDL
Output low voltage I
GDsink
= 100 mA 0.75 V
I
sourcepk
Output source peak current -0.6 A
I
sinkpk
Output sink peak current 0.8 A
t
f
Fall time 40 ns
t
r
Rise time 50 ns
V
GDclamp
Output clamp voltage I
GDsource
= 5 mA; Vcc = 20 V 10 11.3 15 V
UVLO saturation Vcc = 0 to V
ccon, Isink = 1 mA 0.9 1.1 V
1. Parameters tracking one another.
2. See Table 6 on page 41 and Table 7 on page 42
3. The voltage feedforward block output is given by:
Table 4. Electrical characteristics (continued)
(
)
VFFFFCOMPcs
VK5.2VKc V
=