Datasheet > BD8355MWV

BD8355MWV

更新时间： 2024-11-04 08:51:47

品牌	Logo	应用领域
罗姆 - ROHM		稳压器开关数码相机摄像机
页数	文件大小	规格书
21页	1174K
描述
Regulators ICs for Digital Cameras and Camcorders System Switching Regulator IC with Built-in FET (10V)

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BD8355MWV 数据手册

Regulators ICs for Digital Cameras and Camcorders

System Switching Regulator IC

with Built-in FET (10V)

BD8355MWV

No.11036EAT20

●Description

BD8355MWV is a system switching regulator for Li 2 cell composed of 6 step-down synchronous rectification channels and

1 step-up Di rectification channel for LED application. Using a charge-pump system for high side FET driver and including

power MOSFET reduce the number of peripheral devices and realize high efficiency.

●Functions

1) Includes step-down 6 CH (CH1~6), step-up for LED 1CH (7CH) total 7CH included.

2) Includes Power MOSFET for all channels.

3) Includes Charge-pump circuit for high side driver.

4) Operating frequency of 750 kHz.

5) CH1 and 4 are common, 3 and 5 are also common, and others are possible to turn ON/OFF independently.

6) Includes Short Circuit Protection (SCP), Under Voltage Lock Out (UVLO) and Thermal Shut Down (TSD).

7) Includes Short Circuit Protection for CH6 (SCP6).

8) Includes Over Voltage Protection for CH7.

9) Thermally enhanced UQFN056V7070 package (7mm×7mm, 0.4mm pitch)

●Applications

For digital single-lens reflex camera, digital video camera

●Absolute maximum ratings（Ta＝25℃）

Parameter

Symbol

Ratings

Unit

VCC, VBAT, VHx1~6

VLx1~6

-0.3~11.0

-0.3~VHx

-0.3~28.0

-0.3~15.0

VLx7

Power Supply Voltage

HVREG

CTL14, CTL2,

CTL35, CTL6

-0.3~11.0

CTL7

IomaxLx1, Lx4, Lx5

IomaxLx2, Lx3

IomaxLx6

-0.3~7.0

±1.5

±0.8

Maximum Current

Power Dissipation

±2.0

IomaxLx7

+1.0

420 (*1)

930 (*2)

-25~+85

-55~+125

125

℃

Operating Temperature

Storage Temperature

Junction Temperature

Topr

Tstg

Tjmax

*1 Without external heat sink, power dissipation degrades by 4.2mW/℃ above 25℃.

*2 Power dissipation degrades by 9.3mW/℃ above 25℃, when mounted on a 74.2mm×74.2mm×1.6mmt grass epoxy PCB.

www.rohm.com

2011.12 - Rev.A

1/20

12 3 4 5 6 7...21

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