Atmel ATA6264 - Manual (Page 32)

32
4929B–AUTO–01/07
ATA6264 [Preliminary]
9.15 Overcurrent switch-on time
Time between reaching
overcurrent and reaching
90% of V
SVSAT
maximum
under on condition
SVSAT t
SVSAToff
0 0.5 µs A
9.16 Leakage current at pin SVSAT Output transistor off SVSAT I
SVSAT
–10 +10 µA A
Error Amplifier
9.17
Maximum output current at pin
COMSATO sinking to low
COMSATO I
COMSATO
200 3000 µA A
9.18
Maximum output current at pin
COMSATO sourcing to high
COMSATO I
COMSATO
–165 –85 µA A
9.19
Input impedance at pin
COMSATI
COMSATI R
COMSATI
9 23 k
Ω
A
9.20 Input offset voltage –10 +10 mV D
9.21 DC open-loop gain 70 dB D
9.22 Unity-gain bandwidth 2 MHz D
9.23 Output voltage low I
COMSATO
= 165 µA COMSATO V
COMSATO
0 0.3 V A
9.24 Output voltage high I
COMSATO
= –85 µA COMSATO V
COMSATO
V
VINT
–
0.6V
V
VINT
V A
9.25 Leading-edge blanking time t
blank
150 200 ns D
9.26
Slope of artificial ramp for slope
compensation
dV/dt 150 (1) 240 (1) mV/µs D
9.27 VSAT loss detection threshold (2) I
Load
0 1.5 mA D
Table 10-1. Electrical Characteristics (Continued)– VSAT Power Supply
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
Notes: 1. Depending on implementation of slope compensation; sub-harmonics must be prevented
2. The value of the minimum load current must be higher than the internal pull-up current at pin VSAT to ensure proper func-
tion of the regulator