BD6581GU-E2 Rohm Semiconductor, BD6581GU-E2 Datasheet - Page 6

• 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

●Block Diagram, I/O Equivalent Circuit Diagram
●Pin Assignment Table
BD6581GU
© 2010 ROHM Co., Ltd. All rights reserved.
www.rohm.com
PWMPOW
FAILSEL
PWMDRV
SENSP
SENSN
ISETH
ISETL
TEST
RSTB
Name
SW
PIN
A1
A2
A3
A4
A5
B1
B3
B4
B5
C1
C2
C3
C4
C5
D1
D2
D3
D4
D5
E1
E2
E3
E4
E5
300kΩ
500kΩ
100KΩ
1MΩ
100kΩ
300kΩ
300kΩ
PWMPOW
PWMDRV
FAILSEL
SENSP
SENSN
Current
ISETH
VREG
Q
In/Out
ISETL
Sence
VDET
RSTB
TEST
VBAT
LED1
LED6
LED5
LED4
LED3
LED2
GND
GND
GND
N.C.
N.C.
SW
TSD
GND
R
S
Resistor driver
Resistor driver
ISET H
ISET L
VBAT
REG
GND
Control
sence
Fig.23 Block diagram
GND
Number
VREG
Internal Power suplly
PIN
Out
Out
SBD Open protect
over voltage protect
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
GND
-
-
-
-
-
PWMcomp
-
+
+
VIN detector
Over Voltage Protect
LED TERMINAL
LED TERMINAL
Detect input for SBD open and OVP
No connect pin
Switching Tr drive terminal
+ Side Current sense terminal
- Side Current sense terminal
No connect pin
TEST input (Pull down 100kΩ to GND)
Resistor connection for ,LED current setting at PWMDRV=H
GND
Battery input
PWM input pin for power ON/OFF
Regulator output / Internal power-supply
Resistor connection for ,LED current setting at PWMDRV=L
PWM input pin for power ON/OFF only driver
Reset pin L :Reset H :Reset cancel
GND
Latch selectable pin of protect function
GND
Current sink for LED1
Current sink for LED6
Current sink for LED5
Current sink for LED4
Current sink for LED3
Current sink for LED2
PWMDRV=H
PWMDRV=L
OSC
ERRAMP
Detect
On
On
+
-
+
-
+
-
-
-
-
-
-
UVLO
Current Driver
+
-
6/26
VDET
LED5
LED6
LED1
LED2
LED3
LED4
Function
PIN
PIN
PIN
VBAT
VBAT
VBAT
GND
GND
GND
Fig.24 I/O equivalent circuit diagram
A
D
G
VREG
VREG
PIN
PIN
VBAT
VBAT
GND
B
E
Clump
5.5V
Terminal equivalent
2010.03 - Rev.A
Technical Note
circuit diagram
PIN
PIN
G
G
G
C
D
C
C
F
A
F
A
B
E
A
E
E
B
E
B
C
C
C
C
C
GND
C
F