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BD2606MVV 데이터시트 PDF




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부품번호 BD2606MVV 기능
기능 6-Channel Charge Pump White LED Driver
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BD2606MVV 데이터시트, 핀배열, 회로
Datasheet
6-Channel Charge Pump
White LED Driver
with 64 Dimming Steps and I2C Compatible Interface
BD2606MVV
General Description
BD2606MVV is a multi-level brightness control white
LED driver that not only ensures efficient boost by
automatically changing the boost rate but also works as
a constant current driver with 64 steps, so that the
driving current can be adjusted finely. This IC is best
suited to turn ON white LEDs that require high-accuracy
LED brightness control.
Features
6-Ch Parallel LED Driver
64-Step LED Current Adjust Function
Inter-LED Relative Current Accuracy: 3% or less
LED Individual Lighting/Dimming Control via I2C
BUS Interface
Automatic Transition Charge Pump Type DC/DC
Converter (x1, x1.5 and x2)
High Efficiency (90% or More at Maximum)
Various Protection Functions such as Output
Voltage Protection, Over-Current Limiter and
Thermal Shutdown Circuit
Applications
This driver is applicable for various fields such as
mobile phones, portable game machines and white LED
products.
Key Specifications
Power Supply Voltage Range:
Oscillation Frequency:
Quiescent Current:
Operating Temperature Range:
2.7V to 5.5V
1.0MHz(Typ)
0μA(Typ)
-30°C to +85°C
Package
W(Typ) x D(Typ) x H(Max)
SQFN016V4040
4.00mm x 4.00mm x 1.00mm
Typical Application Circuit
Battery
CIN
= 1μF
IN
C1 = 1μF C2 = 1μF
OUT
COUT = 1μF
EN BD2606MVV
SCL
SDA
LEDA1
LEDA2
LEDB1
LEDB2
LEDC1
LEDC2
GND
Product structure : Silicon monolithic integrated circuit
.www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 14 001
This product has no designed protection against radioactive rays
1/16
TSZ02201-0G3G0C200400-1-2
10.Dec.2015 Rev.002




BD2606MVV pdf, 반도체, 판매, 대치품
BD2606MVV
Typical Performance Curves
2.0
1.6
1.2
0.8 Ta=25°C
Ta=-30°C
0.4
Ta=85°C
0.0
2
34 56
InpInuptuVt vooltlataggee::VVIiNn[V]
7
Figure 1. Quiescent Current vs Input Voltage
(Standby)
Ta=25°C
Ta=85°C
Ta=-30°C
Input Voltage: VIN [V]
Figure 2. Circuit Current 1 vs Input Voltage
(Operation in x1.0 Mode)
100
90
DOWN
80
70
60
50 UP
40
2 34 56 7
InpIunpt uVtovlotaltgaeg:eV: VINin[V[V]]
Figure 3. Efficiency Hysteresis vs Input Voltage
(13mA x 6 Lights)
100
90 Ta=-30°C
80
70
Ta=25°C
60
50
40
30 Ta=85°C
20
10
0
2.5 3 3.5 4 4.5 5 5.5 6 6.5 7
InpInupt uVtovlotaltgage:e:VVINin[[VV]]
Figure 4. Efficiency vs Input Voltage
(3.5mA x 6 Lights)
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
4/16
TSZ02201-0G3G0C200400-1-2
10.Dec.2015 Rev.002

4페이지










BD2606MVV 전자부품, 판매, 대치품
BD2606MVV
Application Information
1. Description of Operations
(1) LED Driver
(a) I2C BUS Interface
BD2606MVV can control the LED ON/OFF, brightness and charge pump switching frequency by writing to the
register via the I2C BUS interface. Control by the I2C BUS interface is effective when EN is at ‘H’ level. When EN
is at ‘L’ level, this LSI is completely shut down and the control and associated functions via the I2C BUS interface
are all stopped.
As shown in Figure 12 below, the I2C BUS interface of BD2606MVV operates using the VEN voltage (buffering the
EN pin voltage) as supply voltage. For this reason, it is desirable that the ‘H’ voltage in the I2C BUS interface is
equal to the EN pin voltage.
VEN
EN
VEN
I2C Interface Buffer
SDA
SCL
Figure 12. I2C BUS Interface Buffer
SDA
tf
tLOW
tSU;DAT
tHD;STA
SCL
tHD;STA
S
tHD;DAT
tHIGH
tSU;STA
Sr
Figure 13. I2C BUS Interface Timing
tr tBUF
tSU;STO
P
S
BD2606MVV operates as a slave device for the I2C BUS interface.
Slave Address
A7 A6 A5 A4 A3 A2 A1 R/W
1 1 0 0 1 1 0 1/0
Data Format
The data format is shown below.
Write format:
S
Slave address
W As
One-byte register
address
As Sr
Slave address
R As One-byte register data As P
7 bit 8 bit 7 bit 8 bit
Or
S
Slave address
W As
One-byte register
address
As One-byte register data As P
7 bit 8 bit 8 bit
Read format:
S
Slave address
One-byte register
W As
address
As Sr Slave address
R As One-byte register data Am P
7 bit
(Note)
8 bit
S: Start condition
W: ‘0=Write
R: ‘1=Read
As: Acknowledge (slave -> master)
Am: No acknowledge
Sr: Repeated start condition
P: Stop condition
7 bit
8 bit
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
7/16
TSZ02201-0G3G0C200400-1-2
10.Dec.2015 Rev.002

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관련 데이터시트

부품번호상세설명 및 기능제조사
BD2606MVV

6-Channel Charge Pump White LED Driver

ROHM Semiconductor
ROHM Semiconductor

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