L290
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
COMPARATORS WITH HYSTERESIS (C1, C2, and C3)
VTHP (°) Positive Threshold Voltage
(pin 2, 12, 15)
VTHN (° °) Negative Threshold Voltage
(pin 2, 12, 15)
∆FTF
VL
Ileak
Threshold Hysteresis
Output Voltage (low level)
(pin 10, 13, 14)
(pins 10, 13, 14)
C1 and C2
C3
C1 and C2
C3
C3
I0 = 2 mA
FTA = FTB = FTF = 0 V
FTA = FTB = 0.5 V
VCE = 5 V FTF = 1 V
550
850
mV
700
900
mV
55
175
mV
570
830
mV
72
120
mV
0.2
0.4
V
1
µA
REFERENCE GENERATOR
Vref DC Reference Voltage
(pin 3)
Iref
Output Current (pin 3)
FTA = FTB = ± 0.5 Vp (*)
Iref = 1 mA
4.5
5
5.5
V
1.4
mA
”TACHO” AMPLIFIER (A3)
Vos
Output Offset Voltage (pin 4) FTA = ± 15 mV FTB = 0.5V
± 80
mV
Vo
DC Output Voltage (pin 4)
FTA = FTB =
± 0.5 Vp
(**)
V01
5.4
6
6.6
V
VMA = VMB =
± 1.25 Vp
(***)
V02
- 5.4
-6
- 6.6
∆V0
V01 + V02
- 150
+ 150 mV
V0
Output Voltage Swing (pin 4)
FTA = FTB = 0.5V
9
V
Sin (B)
FTA = FTB = -0.5 V - 9
VMA
Multiplier Input Voltage
VMB
(pin 7, 8)
± 1.25 ± 1.7
Vp
Vb ias
Bias Voltage (pin 6)
FTA and FTB Floating
- 6.5
-8
V
1V
(°) : FTA = FTB = FTF 0
1V
(° °) : FTA= FTB = FTF =
0
Note : Phase relationship between the signals :
* FTA : 0°
FTB : 90°
** FTA : 0°
FTB : - 90° VMA = 90°
*** FTA : 0°
FTB : 90° VMA = 90°
VMB = 0°
VMB = 180°
4/8