tb62725bpg Marktech Optoelectronics, tb62725bpg Datasheet - Page 2

• Manufacturer Part Number: tb62725bpg
• Description: 8?bit?constant ?current?led?driver?of?the?3.3?v?and?5?v?power?supply?voltage?operation
• Manufacturer: Marktech Optoelectronics

Pin Assignment
Block Diagram
Truth Table
Pin layout and functionality are similar to those of the TB62705C. (each characteristic value is different.)
Note 1: OUT0 to OUT7 = On when Dn = H; to OUT0 to OUT7 = Off when Dn = L.
SERIAL­IN
CLOCK
SERIAL­IN
ENABLE
LATCH
CLOCK
LATCH
R­EXT
CLOCK
OUT0
OUT2
OUT3
OUT1
In order to ensure that the level of the power supply voltage is correct, an external resistor must be
connected between R­EXT and GND.
GND
LATCH
(top view)
H
H
X
X
L
I­REG
D Q
CK
ENABLE
H
L
L
L
L
VDD
R­EXT
SERIAL­OUT
ENABLE
OUT7
OUT6
OUT5
OUT4
L D
Q
OUT0
D Q
SERIAL­IN
CK
Dn + 1
Dn + 2
Dn + 3
Dn + 3
Dn
L D
Q
2
OUT1
OUT0 ­­­ OUT5 ­­­ OUT7
Dn + 2 ­­­ Dn - 3 ­­­ Dn - 5
Dn + 2 ­­­ Dn - 3 ­­­ Dn - 5
Dn ­­­ Dn - 5 ­­­ Dn - 7
No change
TB62725BPG/BFG/BFNG
Off
D Q
CK
L
Q
D
OUT7
SERIAL­OUT
2005­04­20
SERIAL­OUT
Dn - 7
Dn - 6
Dn - 5
Dn - 5
Dn - 5