L99DZ120 datasheet(27/162 Pages) STMICROELECTRONICS

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L99DZ120

Electrical specifications

161

3.4.4

Voltage regulator V1

The voltages are referred to ground and currents are assumed positive, when the current

flows into the pin. 4.5 V ≤ VS ≤ 28 V; 4.5 V ≤ VSREG ≤ 28 V; Tj = -40 °C to 150 °C, unless

otherwise specified.

Table 8. Power-on reset (VSREG)

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

VPOR_R VPOR threshold

VSREG rising

3.45

4.5

VPOR_F VPOR threshold

VSREG falling(1)

1. This threshold is valid if VSREG had already reached VPOR_R(max) previously.

2.45

3.5

Table 9. Voltage regulator V1

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

Output voltage

VSREG = 13.5V

5.0

VSREG_absmin

VSREG absolute

minimum value for

controlling NRESET

output

VSREG rising/falling

V1_low_acc

Output voltage

tolerance low accuracy

mode

ILOAD = 0 mA to ICMP; (Active

mode) or ILOAD = 0 mA to IPEAK

(V1stdby); VSREG = 13.5 V

-3

V1_hi_acc

Output voltage

tolerance high accuracy

mode

ILOAD = ICMP to 100 mA; (Active

mode) or ILOAD = IPEAK to

100 mA (V1stdby);

VSREG = 13.5 V

-2

V1_250mA

Output voltage

tolerance (100 to

250mA)

ILOAD = 250 mA;

VSREG = 13.5 V

-3

VDP1

Drop-out Voltage

ILOAD = 50 mA; VSREG = 5 V

0.2

0.4

ILOAD = 100 mA; VSREG = 5 V

0.3

0.5

ILOAD = 150 mA; VSREG = 5 V

0.45

0.6

ICC1

Output current in Active

mode

Max. continuous load current

250

ICCmax1

Short circuit output

current

Current limitation

340

600

900

Cload1

Load capacitor1

Ceramic (+/- 20%)

0.22(1)

µF

tTSD

V1 deactivation time

after thermal shut-down

1sec

ICMP_ris

Current comp. rising

thresh

Rising current

ICMP_fal

Current comp. falling

threshold

Falling current

1.4

2.8

4.2

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