L9780 datasheet(44/56 Pages) STMICROELECTRONICS

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Electrical characteristics

L9780

44/56

DocID026356 Rev 3

Logic levels (SO pin)

Output low voltage

SO current = 1.6 mA

0.4

Output high voltage

VCCI = 4.9 V, SO current = -800 μA

VCCI – 0.8V

VCCI = 3.13 V, SO current = -100 μA

SO pin leakage current

Vin = VCCI or GNDA, tri state condition

-5

μA

Table 9. Supplies and control inputs (continued)

Parameter

Conditions

Min.

Max.

Unit

Table 10. INRC, RCT2 and integrator amplifiers, RCT1, INRC and band-gap switches, clean

currents

Parameter

Conditions

Min.

Max.

Unit

INRC amplifier

Bias point (voltage measured on

C1A/B pin)

INRC pin voltage = 450 mV

1.842

1.937

GAIN

INRCGAIN bit = 0

4.137

4.242

V/V

INRCGAIN bit = 1

2.079

2.121

V/V

Output offset voltage

-26

Output voltage swing

Maximum output voltage,

C1 pin current = -500 μA

4.3

VCCA

Minimum output voltage,

C1 pin current = 500 μA

200

INRC pull down current

INRCPD bit = 1

400

600

μA

RCT2 amplifier

GAIN

INRCGAIN = 0

4.137

4.242

V/V

Output offset voltage

-26

Output voltage swing

Maximum output voltage,

output current = -500 μA

4.3

VCCA

Minimum output voltage,

output current = 500 μA

200

RCT2 leakage current

Impedance test disabled

-1

μA

Integrator amplifier

Input offset voltage

-8

Open loop gain

100

Reference voltage (REF)

1.848

1.932

Input bias current (C2 pin)

-0.2

0.2

μA

Output voltage swing

C3 current = -500 μA, C2 voltage < 0.9 *

REF voltage

VCCA–0.3

VCCA

C3 current = 500 μA,

C2 voltage > 1.1 * REF voltage

300

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