L290B datasheet(4/8 Pages) STMICROELECTRONICS

4 / 8 page

4/8

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

COMPARATORS WITH HYSTERESIS (C1,C2, and C3)

VTHP (

°)

Positive Threshold Voltage

(pin 2, 12, 15)

C1 and C2

550

850

700

900

VTHN (

° °) Negative Threshold Voltage

(pin 2, 12, 15)

C1 and C2

175

570

830

∆FTF

Threshold Hysteresis

120

Output Voltage (low level)

(pin 10, 13, 14)

I0 =2 mA

FTA = FTB = FTF = 0 V

0.2

0.4

Ileak

(pins 10, 13, 14)

FTA = FTB = 0.5 V

VCE = 5 V

FTF = 1 V

µA

REFERENCE GENERATOR

Vref

DC Reference Voltage

(pin 3)

FTA = FTB =

± 0.5 Vp (*)

Iref =1 mA

4.5

5.5

Iref

Output Current (pin 3)

1.4

”TACHO” AMPLIFIER (A3)

Vos

Output Offset Voltage (pin 4)

FTA =

± 15 mV FTB = 0.5V

± 80

DC Output Voltage (pin 4)

FTA = FTB =

± 0.5 Vp

(**)

V01

5.4

6.6

VMA = VMB =

± 1.25 Vp

(***)

V02

- 5.4

- 6

- 6.6

∆V0

V01 +V02

- 150

+ 150

Output Voltage Swing (pin 4)

FTA = FTB = 0.5V

Sin (B)

FTA = FTB = -0.5 V

- 9

VMA

VMB

Multiplier Input Voltage

(pin 7, 8)

± 1.25

± 1.7

Vbias

Bias Voltage (pin 6)

FTA and FTB Floating

- 6.5

- 8

ELECTRICAL CHARACTERISTICS (continued)

(

°)

FTA = FTB = FTF

(

° °)

: FTA= FTB = FTF =

Note

Phase relationship between the signals :

*FTA : 0

FTB : 90

** FTA : 0

FTB : - 90

VMA =90

VMB =0

*** FTA : 0

FTB : 90

VMA =90

VMB = 180

L290

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