BD6581GU-E2 Rohm Semiconductor, BD6581GU-E2 Datasheet - Page 17

• Manufacturer Part Number: BD6581GU-E2
• Description: IC LED DVR WHT BCKLGHT VCSP85H2
• Manufacturer: Rohm Semiconductor
• Series: -r

Specifications of BD6581GU-E2

• Constant Current: -
• Constant Voltage: -
• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 6
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: White LED
• Frequency: 800kHz ~ 1.2MHz
• Voltage - Supply: 2.7 V ~ 22 V
• Voltage - Output: 44.7 V
• Mounting Type: *
• Package / Case: *
• Operating Temperature: -30°C ~ 85°C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

●Selection of External Parts
BD6581GU
© 2010 ROHM Co., Ltd. All rights reserved.
www.rohm.com
Recommended external parts are as shown below.
When to use other parts than these, select the following equivalent parts.
・Coil
・Capacitor
・Resistor
・SBD
・MOS FET Nch
The coil is the part that is most influential to efficiency. Select the coil whose direct current resistor (DCR) and current -
inductance characteristic is excellent. BD6581GU is designed for the inductance value of 4.7µH.
inductance value less than 2.2 µH.
characteristics. Further, select Capacitor to be used with small direct current resistance, and pay sufficient attention to the
layout pattern shown in P.15.
[ Supply voltage capacitor ]
[ Smoothing capacitor for built-in regulator ]
[ Output capacitor ]
[ Resistor for LED current decision <ISETH pin> ]
[ Resistor for over current decision <SENSP pin> ]
Pressure
Pressure
100mΩ
0.33μF
4.7μH
4.7μH
4.7μH
4.7μH
4.7μH
4.7μF
4.7μF
2.2μF
Value
10μH
Value
Value
30kΩ
10μF
10μF
1μF
1μF
1μF
60V
45V
60V
Manufacturer
Tolerance Manufacturer
Pressure Manufacturer
±0.5%
±1%
25V
10V
25V
25V
10V
50V
50V
50V
50V
TOKO
TOKO
TOKO
TDK
TDK
TDK
Manufacturer
Manufacturer
ROHM
ROHM
ROHM
MURATA
MURATA
MURATA
MURATA
MURATA
MURATA
MURATA
MURATA
MURATA
VLP6810T-4R7M1R6
VLP6810T-100M1R1
ROHM
LTF5022T-4R7N2R0
ROHM
Product number
B1015AS-4R7M
A1101AS-4R7M
A915AY-4R7M
GRM31MB31H105K
MCR10EZHFSR100
GRM31CB31E106K
GRM21BR61E475K
GRM21BB31H105K
GRM31CB31H225K
GRM219R61A106K
GRM319R61E475K
GRM219B31H334K
GRM188B10J105K
MCR006YZPD303
Select a capacitor of ceramic type with excellent frequency and temperature
Product number
Product number
Product number
Product number
RTR020N05
RSS065N06
RB160M-60
Vertical
5.2
8.4
4.1
5.0
6.3
6.3
17/26
Horizontal
Vertical
Vertical
Vertical
Vertical
Size
5.2
8.3
4.1
5.2
6.8
6.8
3.2
2.0
3.2
2.0
1.6
3.2
2.0
3.2
2.0
0.6
2.0
2.8
6.0
3.5
Horizontal
Horizontal
Horizontal
Horizontal
Height
(MAX)
Size
1.25
1.25
1.25
1.25
Size
1.25
Size
Size
3.0
4.0
1.2
2.2
1.0
1.0
1.6
1.6
0.8
1.6
1.6
0.3
1.6
2.9
5.0
0.85±0.15
0.85±0.1
1.25±0.1
1.15±0.1
1.25±0.1
0.85±0.1
1.6±0.2
0.8±0.1
1.6±0.2
current
Height
Height
Height
Height
1870
3300
1400
2000
1600
(mA)
1100
0.23
0.55
1.75
DC
0.8
1.0
Current
0.045
0.038
0.115
0.073
0.167
0.350
Ability
DCR
X5R
X5R
X5R
6.5A
TC
(Ω)
2A
B
B
B
B
B
B
2010.03 - Rev.A
Technical Note
Doesn’t use the
+/-10%
+/-10%
+/-10%
+/-10%
+/-10%
+/-10%
+/-10%
+/-10%
+/-10%
Voltage
Driving
Cap
2.5V
4.0V
Tol