L9780 datasheet(45/56 Pages) STMICROELECTRONICS

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L9780

Electrical characteristics

Parking voltage

C3 voltage with VCCSEN bit = 0

REF2–

0.02

REF2+

0.02

RCT1 switch

On resistance

RCT1 bandgap switch

On resistance

Output voltage (RCT1 pin)

Charge balance mechanism activated

1.154

1.275

INRC switch

On resistance

2.5

Output leakage current in off state

(C1 pin)

Charge balance mechanism activated

-1

μA

Clean currents

Clean current

Bits CCS[3..0] = 0000,

0 < INRC < VCCA

-1

μA

Bits CCS[3..0] = 0001,

0 < INRC < 2 V

-15.4

-12.6

Bits CCS[3..0] = 0010,

0 < INRC < 2 V

-22

-18

Bits CCS[3..0] = 0100,

0 < INRC < 2 V

-44

-36

Bits CCS[3..0] = 1000,

0 < INRC < 2 V

-88

-72

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

currents (continued)

Parameter

Conditions

Min.

Max.

Unit

Table 11. FVOUT, scaling amplifiers, A/D conversion, RFV resistor

Parameter

Conditions

Min.

Max.

Unit

RFV resistor

RFV resistor value

3.75

6.25

kΩ

FVOUT amplifier

GAIN

Bit SAMP[2..0] = 000; nominal gain = 1

0.995

1.005

V/V

Bit SAMP[2..0] = 001; nominal gain = 1.5

1.485

1.515

Bit SAMP[2..0] = 010; nominal gain = 2

1.98

2.02

Bit SAMP[2..0] = 011; nominal gain = 3

2.955

3.015

Bit SAMP[2..0] = 100; nominal gain = 4

3.93

4.03

Bit SAMP[2..0] = 101; nominal gain = 6

5.88

6.12

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