Card Interface IC | New product new technology

Overview

ROHM card interfaces ICs were designed to provide signal level adjustment between ISO7816-3-compatible CAS (i.e. B-CAS) cards and smart cards and card controllers as well as act as a card power supply. Multiple protection circuits (i.e. thermal shutdown, overcurrent protection, and low voltage malfunction prevention), combined with 6kV (HBM) ESD resistance at the card connector terminal, ensure a greater level of safety and reliability.
A new model with built-in LDO regulator, the BD8919F, joins our current lineup of products that integrate a DC/DC converter.
Select the optimum solution to fit set requirements.

Low noise, compact, and incredibly easy to use.

Card interface IC with built-in LDO regulator: BD8919F

Built-in regulator eliminates the need for noise countermeasures
Fewer parts required, combined with the compact SOP16 package, contribute to smaller sets
Pin layout optimized based on card connector pin configuration, simplifying design
Short protection for all card connector pins
Overcurrent protection for card power supplies
Single system card interface signal line
Greater than 6kV (HBM) ESD resistance

Ideal for sets incompatible with DC/DC converters

Feature1 Pin layout takes into account card connector pin configuration, simplifying design

The BD88919F card interface IC with built-in LDO regulator was designed after carefully considering pin layout. As a result, no jumpers or bridges are necessary, simplifying design significantly.

Feature2 Compact SOP16 package reduces mounting area required

The BD8919F card interface IC integrates an LDO regulator for card power supply, level shifter, and multiple protection circuits into a compact SOP16 package. In addition, fewer parts are required compared to our lineup of card interface ICs with built-in DC/DC converter, contributing to smaller set designs.

DC/DC Converters optimized for 3V supply lines: BD890xF, BD890xFV

Lineup

Part No.	Operating Temperature Range	I/O System	Built-in Power Supply	Supply Detector Settings	Package
BD8904F	-40℃～＋85℃Compatible	I/O 3 System	DC/DC	External	SOP28
BD8904FV	-40℃～＋85℃Compatible	I/O 3 System	DC/DC	External	SSOP-B28
BD8905F	-25℃～+85℃Compatible	I/O 3 System	DC/DC	External	SOP28
BD8906F	-25℃～+85℃Compatible	I/O 3 System	DC/DC	Built-in	SOP28
BD8906FV	-25℃～+85℃Compatible	I/O 3 System	DC/DC	Built-in	SSOP-B28
BD8907F	-40℃～＋85℃Compatible	I/O 3 System	DC/DC	Built-in	SOP28
BD8919F	-40℃～＋85℃Compatible	I/O 1 System	LDO	Built-in	SOP16