Table 6. Electrical Characteristcs (continued)
(VS = 12V; VBOOT - VOUT = 12V; Tamb = 25°C)
Symbol Pin
Parameter
GBW
Sense Op Amp Gain Band
Width Product (*)
Gdc
DC Open Loop Gain
COMPARATORS
Vthe1
8 Enabling Comparator Threshold
Vthe2
9 Enabling Comparator Threshold
tpulse 8,9 Minimum Pulse lenght
(*) Guaranted by design
Figure 4. EN2 Timing Diagrams
Test Condition
VS
L6598
Min.
0.5
Typ.
1
Max.
Unit
MHz
60
80
dB
0.56 0.6 0.64
V
1.05 1.2 1.35
V
200
ns
fOUT
fstart
fmin
EN2
VCss
TSS
Figure 5. EN1 Timing Diagrams
HVG
LVG
EN1
EN2
TSS
D98IN889
D98IN890
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