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PDF BD2606MVV Datasheet ( Hoja de datos )

Número de pieza BD2606MVV
Descripción 6-Channel Charge Pump White LED Driver
Fabricantes ROHM 
Logotipo ROHM Logotipo

Total 20 Páginas
		
BD2606MVV Hoja de datos, Descripción, Manual
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

1 page
BD2606MVV datasheet

1 Page

BD2606MVV pdf
BD2606MVV
Typical Performance Curves - continued
100
90 Ta=-30°C
80
70 Ta=25°C
60
50 Ta=85°C
40
30
20
10
0
2.5 3 3.5 4 4.5 5 5.5 6 6.5 7
InpIuntpuVtovlotaltgaeg:eV: VINin[V[V] ]
Figure 5. Efficiency vs Input Voltage
(10mA x 6 Lights)
100
90 Ta=-30°C
80 Ta=25°C
70
60
50 Ta=85°C
40
30
20
10
0
2.5 3 3.5 4 4.5 5 5.5 6 6.5 7
InIpnpuut tVvoollttaagee:: VIiNn[[VV]]
Figure 6. Efficiency vs Input Voltage
(20mA x 6 Lights)
20.0
Ta=25°C
17.5
15.0
12.5
Ta=85°C
10.0
Ta=-30°C
7.5
5.0
2.5
0.0
0.0 0.4 0.8 1.2 1.6
LED Control VolVtaLEgDe[V: ]VLED [V]
2.0
Figure 7. LED Current Characteristics vs
LED Control Voltage
(LED Current 16.5mA)
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
0
Ta=25°C
Ta=-30°C
Ta=85°C
10 20 30 40 50
STATE[DEC]
60
Figure 8. LED Current Characteristics
(Differential Linearity Error)
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
5/16
TSZ02201-0G3G0C200400-1-2
10.Dec.2015 Rev.002

5 Page

BD2606MVV arduino
BD2606MVV
2. Recommended PCB Layout
In PCB design, wire the power supply line in a way that the PCB impedance goes low and provide a bypass capacitor if
needed. Heat radiation of back side PAD is used for improving the efficiency of IC heat radiation. Solder PAD to GND pin.
Moreover, connect ground plane of board using via as shown in the patterns of below page.
The efficiency of heat radiation improves according to the area of ground plane.
SDA
SCL
EN
GND
To substrate
GND
C1
To substrate
VCC
Figure 15. Application Layout Image (Top View)
SDA
SCL
EN
OUT
C1
Rear-side GND
VCC
Figure 16. Front (Top View)
3. Application Parts Selection Method
Capacitor (Use a ceramic capacitor with good frequency and temperature characteristics)
Symbol
Recommended Value
Recommended Parts
COUT,CIN,C1,C2
1μF GRM188B11A105KA61B(MURATA)
Type
Ceramic capacitor
Connect an input bypass capacitor CIN between IN and GND pin and an output capacitor between OUT and GND pin in
proximity. Place both C1P-C1N and C2P-C2N capacitors in proximity to the chip. Furthermore, select a ceramic
capacitor with a sufficient rating for the voltage to be applied.
When other than these parts are used, the equivalent parts must be used.
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
11/16
TSZ02201-0G3G0C200400-1-2
10.Dec.2015 Rev.002

11 Page





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