BD19915MUV Ver la hoja de datos (PDF) - ROHM Semiconductor

Número de pieza

componentes Descripción

Fabricante

BD19915MUV

Silicon monolithic IC

ROHM Semiconductor 

2/4

○Electrical characteristics （PVCC1=PVCC2=AVCC=5.0V,Ta=25℃ unless otherwise specified）

Parameter

[TOTAL]

Symbol

MIN. TYP. MAX. UNIT

Current consumption

ICC

-

3.6

7.2

mA

Shutdown current

ISHUT

-

1.2

3.0

mA

[Input IO Block : ENUP, XENDWN, SELDCO1, SELSQ, SELRST, CSWON]

High level input voltage

VIOH

2.0

-

-

V

Low level input voltage

VIOL

-

-

0.8

V

input current H

IIO1

-5.0

-

5.0

μA

input current L

IIO2

-5.0

-

5.0

μA

[Step-down DC-to-DC Converter Block]

VDCO1 voltage

VDCO1A

VDCO1B

1.455 1.500 1.545

V

0.970 1.000 1.030

V

VDCO2 voltage

VDCO2

3.201 3.300 3.399

V

Oscillation frequency

fOSCDWN

1.4

2.0

2.6

MHz

High-side-switch resistance

RONH1,2

-

0.40 0.60

Ω

Low-side-switch resistance

RONL1,2

-

0.30 0.50

Ω

Soft start time

tSOFTDWN

0.6

1.0

1.8

ms

[Step-up DC-to-DC Converter Block]

FB（VREF） voltage

VFB3

0.582 0.600 0.618

V

Oscillation frequency

fOSCUP

0.7

1.0

1.3

MHz

High-side-switch resistance

RONH3

-

0.55 0.90

Ω

Low-side-switch resistance

RONL3

-

0.45 0.80

Ω

Soft-start beginning time

tSOFTUP

3.5

6.0

8.5

ms

AMPOUT3 maximum voltage

VAMPOH

2.2

2.5

2.8

V

AMPOUT3 minimum voltage

VAMPOL

-

0.03 0.20

V

Max Duty cycle

DMAX

72

80

88

%

[Reset Block]

VRSTON1A

3.600 3.700 3.800

V

VRSTON1B

4.087 4.200 4.313

V

Reset ON voltage

VRSTON2A

1.140 1.200 1.260

V

VRSTON2B

0.665 0.700 0.735

V

VRSTON3

2.565 2.700 2.835

V

VRSTHYS1A

70

100

130

mV

VRSTHYS1B

70

100

130

mV

Reset hysteresis voltage

VRSTHYS2A

70

100

130

mV

VRSTHYS2B

70

100

130

mV

VRSTHYS3

70

100

130

mV

XRESET output sink voltage

VRSINK

-

-

0.3

V

XRESET leak current

IRLK

-5.0

-

5.0

μA

Reset delay time

tRST

30

50

70

ms

[Current Switch Block]

Current SW ON resistance

RCSWO

-

0.5

1.0

Ω

Condition

VDCO1=VDCO2=5V, FB3=0V,

CSWON=ENUP=5V, XENDWN=0V

ENUP=0V, XENDWN=5V

Input=5V

Input=0V

SELDCO1=0V

SELDCO1=5V

No load

VDCO3=10V

VDCO3=10V

FB3=0V

FB3=0V

FB3=2.5V

FB3=0V

AVCC is observed, SELRST=0V

AVCC is observed, SELRST=5V

VDCO1 is observed, SELDCO1=0V

VDCO1 is observed, SELDCO1=5V

VDCO2 is observed

AVCC is observed, SELRST=0V

AVCC is observed, SELRST=5V

VDCO1 is observed, SELDCO1=0V

VDCO1 is observed, SELDCO1=5V

VDCO2 is observed

ISINK=5.0mA

XRESET=5.0V

CSWON=5V

REV. A

Share Link: