ROHM BD8157EFV Datasheet

This datasheet provides detailed information on the features and applications of the BD8151EFV,BD8157EFV power supply ICs

Brand: ROHM
Category: Power Management
Document type: Datasheet
Language: English
Pages: 18
File format: PDF
File size: 505 KB
Published: 04 June, 2012
Updated: 30 September, 2023
MD5 checksum: 94371818D6B1124FCF33F96D271399A8
PDF: ROHM BD8157EFV Datasheet PDF

About this manual

The BD8157EFV is a single‑chip power‑supply IC designed for TFT‑LCD panels. It integrates a step‑up switching regulator and a gamma‑correction buffer, offering low‑voltage operation and high efficiency.

The document provides electrical characteristics, pin assignments, block diagrams, recommended operating ranges, and ordering information for the BD8157EFV and its sibling BD8151EFV.

What's inside

Description
Features
Applications
Absolute maximum ratings
Recommended Operating Ranges
Electrical Characteristics
Pin Assignment Diagram
Block Diagram
Operation of Each Block
Timing Chart

Specifications

Input voltage range (BD8157EFV)	2.1 V to 4.0 V
Switching frequency options	600 kHz or 1.2 MHz
Built‑in low‑voltage FET current	1.4 A
Typical efficiency	over 85 % at 2.5 V input

Frequently asked questions

What is the recommended operating voltage range for the BD8157EFV?

The recommended operating voltage range is 2.1 V (typical) up to 40 V (maximum).

Which pin provides the soft‑start current output?

Pin 16 (ss) is the soft‑start current output pin.

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