28
4929B–AUTO–01/07
ATA6264 [Preliminary]
8.19a
Overvoltage at pin EVZ to switch
off the regulator
V
EVZ1
programmed VEVZ V
EVZ
25 28.5 V A
8.19b
Overvoltage at pin EVZ to switch
off the regulator
V
EVZ2
programmed VEVZ V
EVZ
35 39.5 V A
8.20 Overvoltage switch-off time
Time between reaching
overvoltage and
reaching 90% of the
value at numbers 8.7
and 8.8 of Table 9-1 on
page 27
GEVZ t
offov
200 ns D
8.21 Overcurrent switch-off time
Time between reaching
overcurrent and
reaching 90% of the
value at numbers 8.7
and 8.8 of Table 9-1 on
page 27
GEVZ t
offoc
500 ns A
8.22
Switch-on delay time for the
boost converter output stage
GEVZ t
don
50 250 ns A
8.23
Switch-on rise time for the boost
converter output stage
Time between 0.5V and
4.5V at GEVZ,
C
GEVZ
=2nF
GEVZ t
ron
10 200 ns A
8.24
Switch-off delay time for the
boost converter output stage
GEVZ t
doff
50 150 ns A
8.25
Switch-off fall time for the boost
converter output stage
Time between 4.5V and
0.5V at GEVZ,
C
GEVZ
=2nF
GEVZ t
foff
10 100 ns A
8.26 Leakage current at pin OCEVZ OCEVZ I
OCEVZ
–10 +10 µA A
8.27 Leakage current at pin FBEVZ FBEVZ I
OCEVZ
–10 +10 µA A
8.28 Switch-on threshold via FBEVZ
Band-gap tolerance
included
FBEVZ V
FBEVZ
1.20 1.24 V A
8.29 Switch-on threshold via FBEVZ
Band-gap tolerance
included
FBEVZ V
FBEVZ
1.24 1.28 V A
8.30 V
EVZ
voltage #1 set by SPI
V
EVZ1
programmed,
Band-gap tolerance
included
EVZ V
EVZ1
20 23 V A
8.31
V
EVZ
voltage #2
set by SPI
V
EVZ2
programmed,
Band-gap tolerance
included
EVZ V
EVZ2
28.6 33 V A
8.31a
Temperature shutdown
activation
T
off
155 185 °C B
8.31b
Hysteresis for reactivation of
GEVZ
T
hys
525KB
Table 9-1. Electrical Characteristics (Continued)– EVZ Step-up Regulator
No. Parameters Test Conditions Pin Symbol Min Typ. Max. Unit Type*
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
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