S1F76680 Epson Electronics America, Inc., S1F76680 Datasheet - Page 11

• Manufacturer Part Number: S1F76680
• Description: Led Driver
• Manufacturer: Epson Electronics America, Inc.

7. OPERATIONAL AND FUNCTIONAL DESCRIPTION
7.1 Activation sequence
LED lighting setting
NLED
EN2(SEN2)
EN3
S1F76680 Technical Manual (Rev.1.22)
[Input]
[Output]
Softstart
RESET
EN1
SCL/SDA
V
V
V
V
1
2
3
4
5
S1F76680 activation sequence is shown below.
DD1
DD2
DDL
OUT
V
V
RESET = Low → High, and the resetting is cancelled.
Resetting of the I
Start EN1. S1F76680 starts operating from the standby status.
The software start begins. (It is possible to start
After the software start period ends, the setting to turn on the LED will become effective.
DD1
DDL
and V
starts. (It is possible to start this at the same time as
DD2
start. (The battery voltage is supplied.)
2
C register is cancelled, and SCL and SDA are become effective.
Reset release
Softstart period Tss
7. OPERATIONAL AND FUNCTIONAL DESCRIPTION
1
EPSON
and
After it ends for the softstart period
LED lighting set effective
2
1
at the same time.)
.)
7