28
4929B–AUTO–01/07
ATA6264 [Preliminary]
8.19a Overvoltage at pin EVZ to switch
off the regulator VEVZ1 programmed VEVZ VEVZ 25 28.5 V A
8.19b Overvoltage at pin EVZ to switch
off the regulator VEVZ2 programmed VEVZ VEVZ 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 toffov 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 toffoc 500 ns A
8.22 Switch-on delay time for the
boost converter output stage GEVZ tdon 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,
CGEVZ=2nF
GEVZ tron 10 200 ns A
8.24 Switch-off delay time for the
boost converter output stage GEVZ tdoff 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,
CGEVZ=2nF
GEVZ tfoff 10 100 ns A
8.26 Leakage current at pin OCEVZ OCEVZ IOCEVZ –10 +10 µA A
8.27 Leakage current at pin FBEVZ FBEVZ IOCEVZ –10 +10 µA A
8.28 Switch-on threshold via FBEVZ Band-gap tolerance
included FBEVZ VFBEVZ 1.20 1.24 V A
8.29 Switch-on threshold via FBEVZ Band-gap tolerance
included FBEVZ VFBEVZ 1.24 1.28 V A
8.30 VEVZ voltage #1 set by SPI
VEVZ1 programmed,
Band-gap tolerance
included
EVZ VEVZ1 20 23 V A
8.31 VEVZ voltage #2
set by SPI
VEVZ2 programmed,
Band-gap tolerance
included
EVZ VEVZ2 28.6 33 V A
8.31a Temperature shutdown
activation Toff 155 185 °C B
8.31b Hysteresis for reactivation of
GEVZ Thys 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