tb62778fng Marktech Optoelectronics, tb62778fng Datasheet - Page 6
tb62778fng
Manufacturer Part Number
tb62778fng
Description
8-channel Constant-current Led Driver Of The 3.3-v And 5-v Power Supply Voltage Operation
Manufacturer
Marktech Optoelectronics
Datasheet
1.TB62778FNG.pdf
(23 pages)
Electrical Characteristics
Output current
Output current error between ICs
Output current error between channels
Output leakage current
Input voltage
Input current
SERIAL-OUT output voltage
OOD detection voltage
OSD detection voltage
Changes in constant output current
dependent on V
Pull-up resistor
Pull-down resistor
Supply current
Characteristics
DD
(Unless otherwise specified, Ta = 25°C, V
I
I
DD (OFF) 1
DD (OFF) 2
R
I
Symbol
∆ I
∆ I
%/V
DD (ON)
I
V
R
V
OUT1
V
V
(Down)
OUT1
OUT2
I
V
V
OOD
OSD
I
OZ
I
OH
(Up)
IH
OL
IL
IH
IL
DD
Circuit
TENTATIVE
Test
⎯
⎯
5
5
5
5
2
3
1
1
7
7
5
3
2
4
4
4
V
V
V
All channels ON V
V
All channels ON V
V
SERIAL-IN/CLOCK/ LATCH /
SERIAL-IN/CLOCK/ LATCH /
V
CLOCK/SERIAL-IN/ ENABLE
V
CLOCK/SERIAL-IN/ LATCH
I
I
5 to 40 mA
5 to 40 mA
V
R-EXT = OPEN, V
R-EXT = 1.2 k Ω , V
All channels OFF
R-EXT = 1.2 k Ω , V
All channels ON
6
ENABLE
ENABLE
ENABLE
LATCH
OL
OH
OUT
DD
OUT
OUT
OUT
IN
IN
DD
= 5.0 mA, V
= V
= GND
= − 5.0 mA, V
= 5 V, VG = 1
= 3 V to 5.5 V
= 0.4 V, R-EXT = 1.2 k Ω
= 0.4 V, R-EXT = 1.2 k Ω
= 0.4 V, R-EXT = 1.2 k Ω
= 25 V
DD
Test Condition
DD
DD
DD
DD
OUT
OUT
OUT
= 5 V
= 5 V
= 5 V, VG = 1
= 5 V, VG = 1
= 25.0 V
= 25.0 V,
= 0.4 V,
DD
0.7 ×
GND
0.9 ×
= 4.5 to 5.5 V)
V
V
Min
160
160
4.7
0.2
―
―
⎯
⎯
―
―
⎯
⎯
⎯
⎯
⎯
DD
DD
(Ver.0.0) 08-02-07
TB62778FNG
0.95 ×
Typ.
V
200
200
0.3
15
± 3
± 1
⎯
⎯
⎯
―
―
⎯
⎯
⎯
⎯
⎯
DD
1
0.3 ×
Max
V
V
V
240
240
0.3
0.4
± 6
± 3
− 1
―
⎯
1
DD
DD
1
DD
2
1
5
9
Unit
mA
mA
µ A
µ A
k Ω
k Ω
%
%
%
V
V
V
V