Datasheet > DIY8883

DIY8883

更新时间： 2024-04-09 19:03:03

品牌	Logo	应用领域
芯源 - MPS		/
页数	文件大小	规格书
31页	2212K
描述
可配置 36V，3A DC/DC 降压芯片

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中文翻译

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数据手册

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DIY8883 数据手册

DIY8883 – 45V DIGITAL CALIBRATED SYNCHRONOUS STEP-DOWN CONVERTER

DC/DC ELECTRICAL CHARACTERISTICS

V_IN= 12V, V_EN= 2V, T_J=-40^oC to +125^oC⁽⁵⁾, unless otherwise noted. Typical values are at T_J=+25°C.

Parameter

Symbol Condition

Min

Typ

Max

Units

V_INunder-voltage lockout rising

threshold

INUV_VthI²C default set

2.9

3.2

3.4

V_INUVLO threshold hysteresis

VIN UVLO threshold DAC range

INUV_HYSI²C default set

INUVVth I²C set range

122

3.2

7.4

V_OUT=5V V_FB>V_REFwithout

BIAS power, no load, T_J

=25°C

600

1000

μA

V_INquiescent current

I_Q

V_OUT=5V V_FB>V_REFwith

(6)

BIAS power, no load

V_INshutdown current

Default output voltage

I_SD

V_EN=0V, T_J=25°C

μA

V_OUT

I²C default set, T_J=25°C

I²C default set, T_J

=40~125°C

4.95

5.05

V_OUT

4.925

5.075

Operation output range

V_OUT

f_SW

I²C set range

I²C default set, T_J=25°C

0.6

450

250

Default switching frequency

Frequency programmable range

Sync frequency range

500

550

kHz

FPROG I²C set range

2500

FSYNC SNYC clock set range

VSYNC-

HIGH

Sync voltage high threshold

Sync voltage low threshold

1.4

1.1

VSYNC-

LOW

0.4

With emulated peak

current mode

(7)

T_ON-MIN

Minimum on time

With peak current mode

(7)

T_OFF-MIN

380

Minimum off time

HS switch on resistance

R_DSON-HV_BST-V_SW=5V

R_DSON-L

180

100

2.8

mΩ

LS switch on resistance

BST-SW refresh UVLO

BST-SW refresh UVLO hysteresis

Default soft-start time

0.2

T_SS

V_EN

I²C default set

I²C set range

I²C default set

Soft-start time range

0.5

1.4

Default EN voltage threshold

EN voltage threshold range

Default EN voltage hysteresis

EN voltage hysteresis range

Default PG upper trip threshold

PG upper trip threshold range

Default PG lower trip threshold

PG lower trip threshold range

PG trip threshold hysteresis

PG trip threshold hysteresis range

1.2

220

110

1.2

V_EN-HYSI²C default set

220

110

420

115

As percentage of V_OUTset

I²C set value

As percentage of V_OUTset

I²C set value

As percentage of V_OUTset

I²C set value

5.5

DIY8883 Rev. 1.0

www.MonolithicPower.com

3/4/2019

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

1 2 3 456 7 8...31

中文翻译

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