UPD161644 Datasheet, PDF (38/51 Pages) NEC – 241 OUTPUT GATE DRIVER WITH POWER SUPPLY FOR TFT-LCD GATE DRIVER

µPD161644
12. POWER ON/OFF SEQUENCE
There are three ways to turn on the power of the µPD161644:
<When power supply is controlled by serial interface>
• Simple sequence
• Command control sequence
<When power supply is controlled by pin>
• Simple sequence
12.1 Power ON sequence
(1) Power supply control via serial interface (simple sequence)
Control /GRESET pin and each command of PONM, VD2ON, RGONR, RGON, VS2ON, VS3ON, VD1ON, and DCON
using the following sequence, after applying power to VDC, VCC1, and VCC11.
VDC
VCC1
VCC11
2.5 V
0 ns MIN.
1.8 V
0 ns MIN.
/GRESET
PONM
Turn on the power
supply to be used ^Note
DCON
Wait 0 ns MIN.
Wait 0 ns MIN.
Wait 0 ns MIN.
<1> Issue the reset command (R34)
<2> Set a value to R25 to R33 (any value)
Power-on operation is complete after the
time specified by PUPT0 and PUPT1 has
elapsed.
Note Turn on the power supply to be used among VD2ON, RGONR, RGON, VS2ON, VS3ON, and VD1ON.
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Preliminary Product Information S15797EJ1V4PM