ROHM BD2246G/BD2247G Power Management Switch IC Technical Note

BD2246G and BD2247G are low on-resistance N-channel MOSFET high-side power switches, optimized for Universal Serial Bus (USB) applications. BD2246G and BD2247G are equipped with the function of over-current detection, thermal shutdown, under-voltage lockout and soft-start.


ROHM BD2246G/BD2247G Power Management Switch IC Technical Note - cover page
Brand
ROHM
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
14
File format
PDF
File size
293 KB
Published
04 June, 2012
Updated
30 September, 2023
MD5 checksum
3671C8D531B85F32413EADA27F143450

About this manual

The ROHM BD2246G and BD2247G are low‑on‑resistance N‑channel MOSFET high‑side power switches designed for USB and memory‑card applications. They integrate over‑current detection, thermal shutdown, under‑voltage lockout, soft‑start and an open‑drain fault‑flag output.

The document provides absolute maximum ratings, operating conditions, detailed DC and AC electrical characteristics, pin descriptions, a block diagram, measurement circuits and ordering information for the SSOP5 package.

What's inside

  • Description
  • Features
  • Absolute Maximum Ratings
  • Operating Conditions
  • Electrical Characteristics
  • DC Characteristics
  • AC Characteristics
  • Pin Description
  • Block Diagram
  • Ordering Part Number

Specifications

Typical On‑Resistance (Ron)110 mΩ
Input Voltage Range2.7 V ~ 5.5 V
PackageSSOP5
Over‑Current DetectionEnabled
Thermal ShutdownEnabled
Under‑Voltage Lockout (UVLO)Enabled
Soft‑Start CircuitEnabled
Supply Voltage Rating (VIN)-0.3 V ~ 60 V
Control Input LogicActive‑High for BD2246G, Active‑Low for BD2247G

Frequently asked questions

What is the typical on‑resistance of the BD2246G/BD2247G ICs?

The typical on‑resistance is 110 mΩ.

Which input logic level activates the switch for the BD2247G?

A low‑level EN (/EN) input turns the switch on for the BD2247G.

What is the operating temperature range for these devices?

The devices operate from –40 °C to 85 °C.

What is the maximum allowed supply voltage?

The maximum supply voltage rating is 60 V.

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