BD8646 Просмотр технического описания (PDF) - ROHM Semiconductor

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Компоненты Описание

производитель

BD8646

Synchronous rectification

ROHM Semiconductor 

2/4

◎Electrical characteristic

(Unless otherwise noted Ta=25℃, VIN=12V, VEN = 3V)

Parameter

Symbol

Specification value

MIN

TYP

MAX

UNIT

Condition

VIN supply current (operating)

VIN supply current (standby)

Reference voltage (VREF)

Oscillation frequency

High side FET ON resistance

Low side FET ON resistance

UVLO voltage

SW leak current

EN terminal H threshold voltage

EN terminal L threshold voltage

SS/DELAY terminal source current

SS/DELAY ‒ FB Offset voltage

PSET terminal source current

PSET terminal threshold voltage

IQ̲active

-

1.5

2.5

mA

VFB = 0.75V

IQ̲ｓｔｂｙ

-

0.8

1.2

mA

VEN = 0V

VFB

0.792

0.8

0.808

V

FB-FC Short

ｆOSC

270

300

330

kHz

RRT= 56kΩ

RHFET

-

120

170

mΩ ISW = -1A

RLFET

-

120

170

mΩ ISW = 1A

VUVLO

3.8

4.0

4.2

V

VIN Sweep

ILSW

-

0

5

μA

VEN= 0V

VENH

1.6

-

-

V

VENL

-

-

0.4

V

ISSSO

2.8

4

5.2

μA

VSS= 1V

VSSFBOST

450

600

750

mV

VSS= 1V

IPSET

3

5

7

μA

VPSET= 2V

VPSET

0.8

1.0

1.2

V

●VFB :FB terminal voltage、VEN :EN terminal voltage、VSS :SS/DELAY terminal voltage, VPSET :PSET terminal voltage, RRT :RT resistor

●Current capability should not exceed Pd.

REV. B

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