BH6948GU-E2 datasheet, PDF - EEWORLD Datasheet

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BH6948GU-E2: Descriptionled display drivers 7x7 dot matrix led drvr 3.15-4.5V; CategoryAnalog mixed-signal IC Drivers and interfaces; File Size159KB，5 Pages; ManufacturerROHM Semiconductor; Websitehttps://www.rohm.com/; Environmental Compliance

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BH6948GU-E2 Overview

led display drivers 7x7 dot matrix led drvr 3.15-4.5V

BH6948GU-E2 Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Reach Compliance Code	compli
ECCN code	EAR99
JESD-30 code	S-PBGA-B62
Number of terminals	62
Maximum operating temperature	85 °C
Minimum operating temperature	-30 °C
Package body material	PLASTIC/EPOXY
encapsulated code	FBGA
Encapsulate equivalent code	BGA62,8X8,20
Package shape	SQUARE
Package form	GRID ARRAY, FINE PITCH
power supply	1.8,2.85 V
Certification status	Not Qualified
surface mount	YES
Temperature level	OTHER
Terminal form	BALL
Terminal pitch	0.5 mm
Terminal location	BOTTOM
Base Number Matches	1

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●

Structure

●

Product

●

Type

●

Figure

Silicon Monolithic Integrated Circuit

7 x 7 Matrix LED DRIVER for Mobile Phone

BH6948GU

Highly effective Charge Pump circuit that can be switched 1 time, 1.5 times,

and 2 times pressure automatically. (190mA / MAX)

7-channel LED DRIVER that can contorol PWM

(IoMAX = 31mA/ch, Current step = 1mA)

7-channel PMOS-SW controlled with 1/8TDMA

It is possible to make 49(7X7) LED shine by PMOS-SW and the LED driver

SPI Interface

Wafer Level CSP pacage for space constrained applications

62pin (4.1mm×4.1 mm height = 1.0mm-max)

●

Absolute Maximum Ratings (Ta = 25℃)

Parameter

Maximum Supply Voltage

Power Dissipation

※

Operating Temperature Range

Storage Temperature Range

※

Symbol

MAX

opr

stg

Rating

5.5

1.47

-30½+85

-55½+125

Unit

℃

When using more than at Ta=25℃, it is reduced 14.7mW per 1℃.

When RHOM specification board 50mm X 58mm mounting.

Cautions : A device may be destroyed when it is used on the conditions beyond this value.

Moreover, the usual operation is not guaranteed.

●

Operating Conditions

Parameter

VBAT1 Voltage

※1

VBATCP Voltage

※1

DVDD1 Voltage

※2

DVDD2 Voltage

※2

※1

49LED lighting

※2

DVDD1

≦

DVDD2

◎This

product is not especially designed to be protected from radioactivity.

Status of this document.

The Japanese version of this document is the formal specification.

A customer may use this translation version only for reference to help reading the formal version.

If there are any differences in translation version of this document, formal version takes priority.

Symbol

BAT1

BATCP

DVDD1

DVDD2

Range

3.15½4.5

1.7½3.1

2.7½3.1

Unit

Block

VREF/BGR

DCDC

I/O

Logic

REV. B

4/4

●

Use-related Cautions

(1) Absolute maximum ratings

If applied voltage (V

MAX

), operating temperature range (Topr), or other absolute maximum ratings are exceeded, there is a risk of

damage. Since it is not possible to identify short, open, or other damage modes, if special modes in which absolute maximum

ratings are exceeded are assumed, consider applying fuses or other physical safety measures.

(2) Power supply lines

In the design of the board pattern, make power supply and GND line wiring low impedance.

When doing so, although the digital power supply and analog power supply are the same potential, separate the digital power

supply pattern and analog power supply pattern to deter digital noise from entering the analog power supply due to the common

impedance of the wiring patterns. Similarly take pattern design into account for GND lines as well.

When there is a small signal GND and a large current GND, it is recommended that you separate the large current GND pattern

and small signal GND pattern and provide single point grounding at the reference point of the set so that voltage variation due to

resistance components of the pattern wiring and large currents do not cause the small signal GND voltage to change. Take care

that the GND wiring pattern of externally attached components also does not change.

Furthermore, for all power supply pins of the LSI, in conjunction with inserting capacitors between power supply and GND pins,

when using electrolytic capacitors, determine constants upon adequately confirming that capacitance loss occurring at low

temperatures is not a problem for various characteristics of the capacitors used.

(3) GND voltage

Make the potential of a GND pin such that it will be the lowest potential even if operating below that. In addition, confirm that

there are no pins for which the potential becomes less than a GND by actually including transition phenomena.

(4) Shorts between pins and misinstallation

When installing in the set board, pay adequate attention to orientation and placement discrepancies of the LSI. If it is installed

erroneously, there is a risk of LSI damage. There also is a risk of damage if it is shorted by a foreign substance getting between

pins or between a pin and a power supply or GND.

(5) Operation in strong magnetic fields

Be careful when using the LSI in a strong magnetic field, since it may malfunction.

(6) Input pins

Parasitic elements inevitably are formed on an LSI structure due to potential relationships. Because parasitic elements operate,

they give rise to interference with circuit operation and may be the cause of malfunctions as well as damage. Accordingly, take

care not to apply a lower voltage than GND to an input pin or use the LSI in other ways such that parasitic elements operate.

Moreover, do not apply a voltage to an input pin when the power supply voltage is not being applied to the LSI. Furthermore,

when the power supply voltage is being applied, make each input pin a voltage less than the power supply voltage as well as within

the guaranteed values of electrical characteristics.

(7) Externally attached capacitors

When using ceramic capacitors for externally attached capacitors, determine constants upon taking into account a lowering of the

rated capacitance due to DC bias and capacitance change due to factors such as temperature.

(8) Thermal shutdown circuit (TSD)

When the junction temperature becomes higher, the thermal shutdown circuit operates and turns the switch OFF. The thermal

shutdown circuit, which is aimed at isolating the LSI from thermal runaway as much as possible, is not aimed at the protection or

guarantee of the LSI. Therefore, do not continuously use the LSI with this circuit operating or use the LSI assuming its operation.

(9) Thermal design

Perform thermal design in which there are adequate margins by taking into account the permissible dissipation (Pd) in actual

states of use.

（10）Test

terminal and unused terminal processing

Please process a test terminal and unused terminal according to explanations of the function manual and the application note, etc.

to be unquestionable while real used. Moreover, please inquire of the person in charge of our company about the terminal without

the explanation especially.

（11）Rush

current

For ICs with more than one power supply, it is possible that rush current may flow instantaneously due to the internal powering

sequence and delays. Therefore, give special consideration to power coupling capacitance, power wring, width of GND wiring, and

routing of wiring.

REV. B

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

R0039A

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