L6491 Datasheet, PDF (13/24 Pages) STMicroelectronics – Power supply unit

L6491
Electrical characteristics
Symbol Pin
Table 9. Sense comparator⁽¹⁾ (V_CC = 15 V, T_J = +25 °C)
Parameter
Test conditions
Min. Typ.
V_io
9, 10 Input offset voltage
-15
I_ib
9, 10 Input bias current
V_CP+ = 1 V, V_CP- = 1 V
I_OD
2
Open-drain low level sink
current
SD\OD = 400 mV, V_CP+ = 1
V; V_CP - = 0.5 V;
13
20
t_{d_comp}
Comparator delay
Rpu = 100 k to 5 V;
V_CP - = 0.5 V;
100
voltage step on CP+ = 0 to
3.3 V; 50% CP+ to 90% SD
SR
2 Slew rate
C_L = 10 nF;
Rpu = 5 k to 5 V;
10
90% SD to 10% SD
1. Comparator is disabled when VCC is in UVLO condition.
Max. Unit
15
mV
1
A
27
mA
155
ns
V/s
DocID024832 Rev 1
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