BD6583MUV-A Ver la hoja de datos (PDF) - ROHM Semiconductor
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BD6583MUV-A
ROHM Semiconductor
BD6583MUV-A Datasheet PDF : 27 Pages
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BD6583MUV-A
Technical Note
●Block diagram, I/O equivalent circuit diagram
VBAT
VREG
RSTB
PW MPOW
300kΩ
500kΩ
REG
TSD
VIN detector
Internal Power suplly
+
SBD Open protect
-
UVLO
FAILSEL
300kΩ
SW
SENSP
SENSN
1MΩ
S
QR
100KΩ Current
Sence
over voltage protect +
-
Control
sence
PW Mcom p
-
+
+
ERRAMP-
-
-
-
-
-
+
OSC
TEST
PW MDRV
ISETH
ISETL
100kΩ
300kΩ
ISET H
Resistor driver
ISET L
Resistor driver
LED TERMINAL
Detect
LED TERMINAL
Over Voltage Protect
PW MDRV=H
On
PW MDRV=L
On
+
-
Current Driver
VDET
LED1
LED2
LED3
LED4
LED5
LED6
VBAT VREG
VBAT
PIN
GND
A
VBAT
PIN
B
VBAT
PIN
GND
C
PIN
GND
D
VBAT VREG
PIN
GND
5.5V
Clump
E
PIN
F
PIN
GND
G
GND GND GND GND
Fig.23 Block diagram
●Pin assignment table
PIN Name
In/Out
1
VDET
2
N.C.
3
GND
4
SW
5
SENSP
6
TEST
7
SENSN
8
GND
PIN number
In
-
-
Out
In
In
In
-
9
ISETH
In
10
ISETL
In
11
PWMDRV
In
12
LED1
In
13
LED2
In
14
LED3
In
15
GND
-
16
LED4
In
17
LED5
In
18
LED6
In
19
FAILSEL
In
20
GND
-
21
RSTB
In
22
VREG
Out
23
PWMPOW
In
24
VBAT
In
Fig.24 I/O equivalent circuit diagram
Function
Detect input for SBD open and OVP
No connect pin
GND
Switching Tr drive terminal
+ Side Current sense terminal
TEST input (Pull down 100kΩ to GND)
- Side Current sense terminal
GND
Resistor connection for
LED current setting at PWMDRV=H
Resistor connection for
LED current setting at PWMDRV=L
PWM input pin for power ON/OFF only driver
Current sink for LED1
Current sink for LED2
Current sink for LED3
GND
Current sink for LED4
Current sink for LED5
Current sink for LED6
Latch selectable pin of protect function
GND
Reset pin L :Reset H :Reset cancel
Regulator output / Internal power-supply
PWM input pin for power ON/OFF
Battery input
Terminal equivalent
circuit diagram
C
F
B
G
G
G
A
B
A
A
E
C
C
C
B
C
C
C
E
B
E
D
E
C
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6/26
2011.06 - Rev.C
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