SPSB100 datasheet(71/213 Pages) STMICROELECTRONICS

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Ground loss protection parameter depends mainly on the implementation. This monitor measures a ground shift

between GND and SGND pins.

7.3

Oscillator

The voltages are referred to GND and currents are assumed positive, when the current flows into the pin.

6 V ≤ VFBB ≤ 29 V, Tj = -40 °C to 150 °C, unless otherwise specified.

Table 24. Oscillator

Symbol

Parameter

Condition

Min

Typ

Max

Unit

FCLK800K

Oscillation frequency

640

800

960

kHz

FCLK33M6_MAIN

Oscillation frequency

26.88

33.6

40.32

MHz

FCLK33M6_MON

Oscillation frequency

26.88

33.6

40.32

MHz

7.4

Power-on reset

All outputs open; Tj = -40 °C to 150 °C, unless otherwise specified.

Table 25. Power-on reset

Symbol

Parameter

Condition

Min

Typ

Max

Unit

VPORVS_R

VS POR rising threshold

4.5

4.85

5.2

VPORVS_F(1)

VS POR falling threshold

1.9

2.1

2.3

VPORVS_HYS

VS POR hysteresis

2.5

2.75

1. This threshold is valid if VS had already reached VPORVS_R(max) previously.

7.5

LDO1 voltage regulator

The voltages are referred to GND and currents are assumed positive, when the current flows into the pin.

6 V ≤ VFBB ≤ 29 V, Tj = -40 °C to 150 °C, unless otherwise specified.

Table 26. LDO1

Symbol

Parameter

Condition

Min

Typ

Max

Unit

VLDO1

Output voltage tolerance.

Including line and load regulation

ILOAD = 100 µA to 120 mA

6.0 V ≤ VFBB ≤ 29 V

4.9

5.0

5.15

VLDO1_PG

Power-good rising threshold

VLDO1 increasing

4.6

4.8

4.9

VLDO1_UV

Undervoltage falling threshold

VLDO1 decreasing

3.8

4.0

4.1

tLDO1_PG_TO(1)

LDO1 timeout for power-good

4.8

7.5

tLDO1_UV(1)

Undervoltage filter time

µs

VLDO1_DP

Drop-out voltage

ILOAD = 120 mA

0.8

ILDO1_Cmax

Short circuit output current (to GND)

Current limitation

130

175

250

CLDO1(2)

Load capacitor1

Ceramic (±20%)

µF

1. Digital implementation is guaranteed by scan test.

2. Nominal capacitor value required for stability of the regulator. Tested with 1 µF ceramic (± 20%). The capacitor must be

located close to the regulator output pin. A 2.2 μF capacitor value is recommended to minimize the DPI (Direct power

injection ) stress in the application.

SPSB100

Electrical characteristics

DS14640 - Rev 2

page 71/213

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