DocID031629 Rev 1

9/27

PM8804

Electrical specifications

27

4.3

Electrical characteristic

VIN = 48 V, VC = open, GAT1 and GAT2 = open, TA = -40 °C to 85 °C unless otherwise

specified).

Table 5. Electrical characteristic(1)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Input voltage VIN

VIN

Input voltage

VIN rising

10

-

75

V

Power Good PGD

PGDON

Turn on threshold

PGD rising

765

815

865

mV

PGDOFF

Turn off threshold

PGD falling

PGDON

-120

PGDON

-100

PGDON

-80

mV

HV linear regulator VC(2)

VC

VCS, Internal default

set

-7.6

8.0

8.4

V

Regulator dropout

IC = 10 mA;

GATE1, GATE2 = open

-2.3

2.8

V

Current limit

GATE1, GATE2 = open

13

22

31

mA

VConoff

Turn off threshold

VC rising

-

8.3

-

V

Turn on threshold

VC falling

-

6.0

-

V

VCUV

UVR, release

VC rising

7.2

7.6

8

V

UVF, lock-out

VC falling

4.75

5

5.25

V

VCOV

OV, threshold

VC rising

14.8

15.3

16.0

V

Oscillator FSW

FSW

Frequency accuracy

In the range from 100 to 500

kHz

-±10

-

%

Frequency

Programmability

RFSW = 47 k

425

475

525

kHz

RFSW = 100 k

210

235

260

kHz

RFSW = 250 k

90

100

110

kHz

-

Frequency range

Typical value

100

-

1000

kHz

-

Fsw voltage

-

1.20

1.25

1.30

V

Delay time DT

-

GATE1 to GATE2 delay

time

RDT = 20 k GATE1 and

GATE2 open

-15

-

ns

RDT = 390 k GATE1 and

GATE2 open

-

195

-

ns

-

DT voltage

-

1.20

1.25

1.30

V