bd6590muv ROHM Co. Ltd., bd6590muv Datasheet - Page 2

• Manufacturer Part Number: bd6590muv
• Description: White Backlight Led Driver For Medium To Large Lcd Panels Switching Regulator Type
• Manufacturer: ROHM Co. Ltd.

●Electrical characteristic(Unless otherwise specified, VBAT=5V, Ta = +25℃)
© 2011 ROHM Co., Ltd. All rights reserved.
BD6590MUV
www.rohm.com
Quiescent current
Current consumption
[PWMPOW Terminal]
Low input voltage range1
High input voltage range1
Pull down resistor1
[PWMDRV Terminal]
Low input voltage range2
High input voltage range2
Pull down resistor2
[FSEL Terminal]
Low input voltage range3
High input voltage range3
Pull down resistor3
[FAILFLAG]
Input resistor
Off current
[Regulator]
Under voltage lock out
[Switching Regulator]
LED control voltage
Switching frequency
Duty cycle limit
SW Nch FET RON
[Protection]
Over current limit
OCPSET open protect
Over voltage limit Input
SBD open protect
VDET leak current
[Current driver]
LED maximum current
LED current accuracy
LED current matching
LED current limiter
LED terminal over voltage protect
ISET voltage
*1 This parameter is tested with DC measurement.
Parameter
LEDOVP
ILACCU
PDRVH
Symbol
PDRVL
POWH
POWR
POWL
ILMAX
ILMAT
ILOCP
DRVR
FFIST
UVLO
VLED
FFIR
RON
OOP
OVIL
FSH
FSR
Duty
FSL
Ocp
Sop
Iset
fsw
Ovl
Idd
Iq
Min.
0.56
1.00
0.96
0.02
10.0
100
100
100
2.1
2.1
2.1
1.0
2.9
1.4
0.5
91
0
0
0
-
-
-
-
-
-
-
-
-
-
2/26
Limits
1.25
Typ.
0.70
95.0
0.48
1.00
0.05
11.5
300
300
300
0.1
3.2
2.0
0.1
3.3
2.0
0.0
0.1
0.6
0
-
-
-
-
-
-
-
-
-
VBAT
Max.
0.84
1.50
99.0
0.58
1.04
0.08
±3.0
±1.5
13.0
500
500
500
4.8
3.7
4.4
0.9
0.9
5.5
0.9
5.5
3.0
2.0
2.6
0.1
1.0
0.1
0.7
30
MHz
Unit
mA
mA
mA
kΩ
kΩ
kΩ
kΩ
µA
µA
µA
%
%
%
Ω
V
V
V
V
V
V
V
V
A
A
V
V
V
V
PWMPOW=PWMDRV=RSTB=0V
VDET=0V,ISET=27kΩ
PWMPOW=3V
FAILFLAG=2.5V
PWMPOW=0V
VBAT falling edge
FSEL=L (GND short)
LED1-6=0.3V
ISW=80mA
OCPSET=68kΩ
OCPSET=2MΩ
Detect voltage of VDET pin
Detect voltage of VDET pin
ILED=16mA
Each LED current/Average (LED1-6)
ILED=16~20mA
Current limit value at ISET
resistor 1kΩ setting
PWMDRV=2.5V
Condition
*1
Technical Note
2011.07 - Rev.B