WM8310 datasheet(22/291 Pages) WOLFSON

22 / 291 page

WM8310

Pre-Production

PP, May 2012, Rev 3.1

7.5

RESET THRESHOLDS

Unless otherwise noted: TJ = -40°C to +125°C; Typical values are at TJ = +25ºC

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Power On Reset

Power on Reset threshold

VPMIC (LDO12VOUT) voltage

at which device transitions

between NO POWER and

BACKUP states

VPOR, DE-

ASSERT

VPMIC rising

1.18

VPOR, ASSERT

VPMIC falling

1.08

Power on Reset hysteresis

VPOR, HYST

100

Device Reset Control

Device Reset threshold

VPMIC (LDO12VOUT) voltage

at which device transitions

between BACKUP and OFF

states

VRES, DE-

ASSERT

VPMIC rising

1.94

VRES, ASSERT

VPMIC falling

1.85

Device Reset hysteresis

VRES, HYST

Device Shutdown

Shutdown threshold

SYSVDD voltage at which the

device forces an OFF transition

VSHUTDOWN

SYSVDD falling

2.7

SYSLO threshold accuracy

SYSVDD voltage at which

SYSLO is asserted

VSYSLO

SYSVDD falling,

VSYSLO set by SYSLO_THR

(2.8V to 3.5V)

-3.5

+3.5

SYSOK threshold accuracy

SYSVDD voltage at which

SYSOK is asserted.

VSYSOK

SYSVDD rising,

VSYSOK set by SYSOK_THR

(2.8V to 3.5V)

Note the SYSOK hysteresis

margin (VSYSOK, HYST) is added

to SYSOK_THR.

-3.5

+3.5

SYSOK hysteresis

VSYSOK, HYST

7.6

REFERENCES

Unless otherwise noted: TJ = +25ºC

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Voltage Reference

VVREFC

0.8

Current Reference

VIREFR

100k

 to REFGND

0.5

WM8310 Datasheet(PDF) 22 Page - Wolfson Microelectronics plc

WM8310 Datasheet(HTML) 22 Page - Wolfson Microelectronics plc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL