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BD2802GU 데이터시트 PDF




ROHM Semiconductor에서 제조한 전자 부품 BD2802GU은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 BD2802GU 기능
기능 System LED Drivers
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BD2802GU 데이터시트, 핀배열, 회로
System LED Drivers for Mobile phones
6LEDs
Illumination
BD2802GU
No.11041EAT12
Description
The BD2802GU is a RGB LED driver specifically engineered for decoration purposes.This RGB driver incorporates lighting
patterns and illuminates without imposing any load on CPU.This RGB driver is best-suited for illumination using RGB LEDs
and decoration using monochrome LEDs.In addition, this RGB driver has been successfully miniaturized through the use of
a VCSP85H2 (2.8 mm 0.5 mm pitch) chip size package.
Features
1) RGB LED driver (dual drivers)
- A slope control function is incorporated (allowing dual drivers to be controlled independently).
- Slope control can be implemented using the DC current.
- Two modes “continuous illumination mode” and “illumination single cycle mode” are supported.
- Independent external ON/OFF synchronizing terminals (of dual drivers) are provided.
- Multiple drivers can be used concurrently by using the I2C address change function and supporting reference clock I/O.
2) Thermal shutdown
3) I2C BUS fast mode support (maximum rate: 400 kHz)
- A device address can be changed via an external pin.
* This driver has not been designed for anti-radiation.
* This document may be altered without prior notice.
* This document does not provide for delivery.
Absolute Maximum Ratings(Ta=25)
Parameter
Symbol
Limits
Maximum Applied voltage
Power Dissipation
VMAX
Pd
7
1250 (Note1)
Operating Temperature Range
Topr
-40 +85
Storage Temperature Range
Tstg -55 +150
(Note1)Power dissipation deleting is 10.0mW/ oC, when it’s used in over 25 oC.
(It’s deleting is on the board that is ROHM’s standard)
Unit
V
mW
Recommended Operating Conditions(VBATVIO, Ta=-4085)
Parameter
Symbol
Limits
VBAT input voltage
VBAT
2.7 5.5
VIO pin voltage
VIO 1.65 3.3
Unit
V
V
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
1/27
2011.04 - Rev.A




BD2802GU pdf, 반도체, 판매, 대치품
BD2802GU
Outside size figure
VCSP85H2 CSP small Package
Size : 2.8mm×2.8mm (Tolerance : ± 0.1mm each side) height 1.0mm max
Ball pitch : 0.5 mm
Technical Note
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
4/27
2011.04 - Rev.A

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BD2802GU 전자부품, 판매, 대치품
BD2802GU
Technical Note
I2C BUS format
The writing operation is based on the I2C slave standard.
Slave address
A7 A6 A5 A4 A3 A2 A1 R/W
ADDSEL=L
0
0
1
1
0
1
00
ADDSEL=H
0
0
1
1
0
1
10
Slave address can be changed with the external terminal ADDSEL.
Bit Transfer
SCL transfers 1-bit data during H. SCL cannot change signal of SDA during H at the time of bit transfer. If SDA changes
while SCL is H, START conditions or STOP conditions will occur and it will be interpreted as a control signal.
SDA
SCL
SDA a state of stabilitySDA
Data are effective It can change
START and STOP condition
When SDA and SCL are H, data is not transferred on the I2C- bus. This condition indicates, if SDA changes from H to L
while SCL has been H, it will become START (S) conditions, and an access start, if SDA changes from L to H while SCL
has been H, it will become STOP (P) conditions and an access end.
SDA
SCL
S
START condition
P
STOP condition
Acknowledge
It transfers data 8 bits each after the occurrence of START condition. A transmitter opens SDA after transfer 8bits data, and
a receiver returns the acknowledge signal by setting SDA to L.
DATA OUTPUT
BY TRANSMITTER
DATA OUTPUT
BY RECEIVER
SCL
S
START condition
1
not acknowledge
acknowledge
2 89
clock pulse for
acknowledgement
www.rohm.com
© 2011 ROHM Co., Ltd. All rights reserved.
7/27
2011.04 - Rev.A

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BD2802GU

System LED Drivers

ROHM Semiconductor
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