L99UDL01 datasheet(31/88 Pages) STMICROELECTRONICS

31 / 88 page

DS12511 Rev 5

31/88

L99UDL01

Electrical characteristics

A.014

VDDSLEEP_R

VDD sleep

threshold

(rising).

Upon rising into the operating

voltage range the L99UDL01 will

enter Standby mode and the RSTB

bit in the Global status register will

be set.

0.4

1.3

1.9

A.015

VDDSLEEP_HYS

VDD sleep

threshold

Hysteresis.

0.25

A.016

VDDUV

Below this threshold the control

registers are reset and the device

enters standby. The RSTB bit in the

Global status register will be set.

22.5

A.017

VDDUV_Hyst

0.1

A.018

tVDDUV

VDD

Undervoltage

filter time

Tested by scan

s

A.019

V3V3

V3V3 Voltage

Device in RUN mode

220 nF cap on C3V3 pin

3.13

3.3

3.46

A.020

V3V3RST_F

V3V3 reset

threshold

(falling). Will

cause a logic

reset

3.3 V regulator voltage below this

threshold will hold the L99UDL01

logic state machine into reset.

2.25

2.65

A.021

V3V3RST_R

V3V3 reset

threshold

(rising). Will

cause a logic

reset

Once in 3V3 reset (A.020), upon

rising above V3V3RST_R the

L99UDL01 will enter Standby mode

and the RSTB bit in the Global

status register will be set.

2.4

2.95

A.022

V3V3RST_HYST

V3V3 reset

threshold

Hysteresis.

0.15

A.023

t3V3UV

3V3

undervoltage

filter time

Tested by scan

s

A.024

V3V3UV_F

V3V3

undervoltage

threshold

(falling).

3.3 V regulator voltage below this

threshold will disable all outputs

internal and external and the

V3V3UV bit in status register 13h

will be set.

V3V3-

0.3

V3V3-

0.25

V3V3-

0.1

A.025

V3V3UV_R

V3V3

undervoltage

threshold

(rising).

3.3 V regulator voltage upon rising

into the operating voltage range the

L99UDL01 will enter Normal and

ready mode.

V3V3-

0.25

V3V3-

0.15

V3V3-

0.05

A.026

V3V3UV_HYST

0.1

Table 6. Supply voltage parameters (continued)

Electrical characteristics (-40°C < TJ < 130°C, 6 V < VS < 18 V unless otherwise specified)

Req ID

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

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