BD4221NUX datasheet, PDF - EEWORLD Datasheet

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BD4221NUX: DescriptionSilicon Monolithic Integrated Circuit; CategoryAnalog mixed-signal IC The signal circuit; File Size151KB，5 Pages; ManufacturerROHM Semiconductor; Websitehttps://www.rohm.com/

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BD4221NUX Overview

Silicon Monolithic Integrated Circuit

BD4221NUX Parametric

Parameter Name	Attribute value
Maker	ROHM Semiconductor
Parts packaging code	SON
package instruction	3 X 2 MM, 0.60 MM HEIGHT, VSON-10
Contacts	10
Reach Compliance Code	compli
Analog Integrated Circuits - Other Types	ANALOG CIRCUIT
JESD-30 code	R-PDSO-N10
length	3 mm
Number of functions	1
Number of terminals	10
Maximum operating temperature	85 °C
Minimum operating temperature	-35 °C
Package body material	PLASTIC/EPOXY
encapsulated code	HVSON
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Certification status	Not Qualified
Maximum seat height	0.6 mm
Maximum supply voltage (Vsup)	5.5 V
Minimum supply voltage (Vsup)	2.5 V
Nominal supply voltage (Vsup)	3.3 V
surface mount	YES
Temperature level	OTHER
Terminal form	NO LEAD
Terminal pitch	0.5 mm
Terminal location	DUAL
width	2 mm

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S T R U C T U R E

PRODUCT SERIES

Silicon Monolithic Integrated Circuit

Strobe Charge Control IC

ＢＤ４２２1NUX

Built-in Low Vth DMOS 45V

Adjustable transformer primary-side peak current by RADJ pin

Standby mode switching with the START pin.

Includes charge complete signal output (FULL) pin.

Includes charge voltage detection (VC) pin (can be set externally).

Built-in thermal shutdown circuit (TSD).

Built-in under voltage looked out (UVLO).

Built-in transformer secondary-side OPEN, SHORT protection.

SON 10pin package VSONO10X3020(3.0mm×2.0mm×0.6mm)

F u n c t i o n s

○ Absolute maximum ratings(Ta=25℃)

Parameter

VCC pin

SW pin

VC pin

START pin

FULL pin

IGBT_IN pin

Operating temperature

Storage temperature range

Junction temperature

Power dissipation

Symbol

VCC

VSW

START

FULL

IGBT_IN

Topr

Tstg

Tjmax

Limit

-0.3 to 7

−35 to 85

−55 to 150

150

1540

Unit

℃

Reduced by

12.32 mW/°C over Ta = 25°C. (When mounted on 74.2 mm



74.2 mm



1.6 mm, glass epoxy)

○ Recommended operating ranges

Parameter

VCC power supply input

voltage range

VC pin input voltage range

START pin input

voltage range

IGBT_IN pin input

voltage range

FULL pin input

voltage range

Symbol

VCC

VSTART

VIGBT_IN

VFULL

Limit

2.5 to 5.5

-0.3 to VCC

0 to VCC

0 to 5.5

Unit

REV. B

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○ Cautions on use

Absolute maximum ratings

An excess in the absolute maximum ratings, such as supply voltage, temperature range of operating conditions, etc., can break down the

devices, thus making impossible to identify breaking mode, such as a short circuit or an open circuit. If any over rated values will expect

to exceed the absolute maximum ratings, consider adding circuit protection devices, such as fuses.

GND and PGND potential

Ensure a minimum GND and PGND(Except for SW pin and VC pin) pin potential in all operating conditions. In addition, ensure that

no pins other than the GND and PGND pin carry a voltage less than or equal to the GND and PGND pin, including during actual

transient phenomena.

Don’t use VC pin under Absolute Maximum Rating.

Thermal design

Use a thermal design that allows for a sufficient margin in light of the power dissipation (Pd) in actual operating conditions.

Protect circuit

The IC does not incorporate built-in malfunction protection such as overcurrent protection, short detection, or thermal shutdown

circuitry. For this reason, the IC may be damaged if it is shorted or subjected to a load that exceeds the package power. The

design of peripheral application circuits should reflect these potential risks.

Inter-pin shorts and mounting errors

Use caution when positioning the IC for mounting on printed circuit boards. The IC may be damaged if there is any connection

error or if positive and ground power supply terminals are reversed. The IC may also be damaged if pins are shorted together or

are shorted to other circuit’s power lines.

Common impedance

The power supply and ground lines must be as short and thick as possible to reduce line impedance. Fluctuating voltage on the

power ground line may damage the device.

IC Pin Input

This is the monolithic IC and has P

isolation and P substrate for element isolation between each element. By the P layer and N

layer of each element, a P-N junction is formed and various parasitic elements are configured.

For example, in the case of a resistor and transistor being connected to a pin as shown in Fig.-3;

P-N junction operates as a parasitic diode when GND > (Pin A) in the case of the resistor, and when GND > (Pin B) in the case of

the transistor (NPN)

Also, a parasitic NPN transistor operates by the N layer of another element adjacent to the previous diode in the case of a

transistor (NPN) when GND > (Pin B).

The parasitic element consequently emerges through the potential relationship because of IC’s structure. The parasitic element

pulls interference out of the circuit which may be the cause of malfunction or destruction. Therefore, excessive caution is

required to avoid operation of the parasitic element which is caused by applying voltage to an input pin lower than GND (P board),

etc.

Resistor

（Pin

A）

（Pin

B）

Transistor (NPN)

GND

P substrate

Parasitic

Fig.3

GND

Parasitic element

Ｎ

Parasitic element

Other adjacent elements

REV. B

＋

（PinＡ）

Notice

Notes

No copying or reproduction of this document, in part or in whole, is permitted without the

consent of ROHM Co.,Ltd.

The content specified herein is subject to change for improvement without notice.

The content specified herein is for the purpose of introducing ROHM's products (hereinafter

"Products"). If you wish to use any such Product, please be sure to refer to the specifications,

which can be obtained from ROHM upon request.

Examples of application circuits, circuit constants and any other information contained herein

illustrate the standard usage and operations of the Products. The peripheral conditions must

be taken into account when designing circuits for mass production.

Great care was taken in ensuring the accuracy of the information specified in this document.

However, should you incur any damage arising from any inaccuracy or misprint of such

information, ROHM shall bear no responsibility for such damage.

The technical information specified herein is intended only to show the typical functions of and

examples of application circuits for the Products. ROHM does not grant you, explicitly or

implicitly, any license to use or exercise intellectual property or other rights held by ROHM and

other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the

use of such technical information.

The Products specified in this document are intended to be used with general-use electronic

equipment or devices (such as audio visual equipment, office-automation equipment, commu-

nication devices, electronic appliances and amusement devices).

The Products specified in this document are not designed to be radiation tolerant.

While ROHM always makes efforts to enhance the quality and reliability of its Products, a

Product may fail or malfunction for a variety of reasons.

Please be sure to implement in your equipment using the Products safety measures to guard

against the possibility of physical injury, fire or any other damage caused in the event of the

failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM

shall bear no responsibility whatsoever for your use of any Product outside of the prescribed

scope or not in accordance with the instruction manual.

The Products are not designed or manufactured to be used with any equipment, device or

system which requires an extremely high level of reliability the failure or malfunction of which

may result in a direct threat to human life or create a risk of human injury (such as a medical

instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuel-

controller or other safety device). ROHM shall bear no responsibility in any way for use of any

of the Products for the above special purposes. If a Product is intended to be used for any

such special purpose, please contact a ROHM sales representative before purchasing.

If you intend to export or ship overseas any Product or technology specified herein that may

be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to

obtain a license or permit under the Law.

Thank you for your accessing to ROHM product informations.

More detail product informations and catalogs are available, please contact us.

ROHM Customer Support System

http://www.rohm.com/contact/

www.rohm.com

R1010A

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