LP8555 datasheet(44/64 Pages) TI1

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LP8555

SNVS857 – FEBRUARY 2014

www.ti.com

8.5.21 VHR0

Address: 0x78

RESERVED

VHR_SLOPE

RESERVED

VHR_VERT

Bits

Field

Type

Description

RESERVED

R/O

Typical headroom voltage at maximum current (50 mA)

000 = 210 mV

001 = 223 mV

010 = 235 mV

6:4

VHR_SLOPE

R/W

011 = 248 mV

100 = 260 mV

101 = 273 mV

110 = 285 mV

111 = 300 mV

RESERVED

Typical minimum headroom voltage

000 = 50 mV

001 = 80 mV

010 = 110 mV

2:0

VHR_VERT

R/W

011 = 140 mV

100 = 170 mV

101 = 200 mV

110 = 230 mV

111 = 260 mV

8.5.22 VHR1

Address: 0x79

RESERVED

VHR_HYST

RESERVED

VHR_HORZ

Bits

Field

Type

Description

7:6

RESERVED

R/O

Typical hysteresis for the mid comparator threshold (above the low comparator threshold).

00 = 200 mV

5:4

VHR_HYST

R/W

01 = 233 mV

10 = 466 mV

11 = 600 mV

3:2

RESERVED

R/O

Percentage of full driver range (horizontal component)

00 = 1%

1:0

VHR_HORZ

R/W

01 = 25%

10 = 37.5%

11 = 50%

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