UPD160083 View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD160083

480-OUTPUT TFT-LCD SOURCE DRIVER (COMPATIBLE WITH 256-GRAY SCALES)

NEC => Renesas Technology 

µ PD160083

Pin Symbol

RPI1, RPI2

RPO1, RPO2

TEST

V0-V17

VDD1D/A

VDD2

VSS1D/A

VSS2

(2/2)

Pin Name

I/O

Description

Line-repair Amp.

Input

Output

The driver-ability of the line-repair amp is around twice of the normal analog output

S1 to S480.

And these outputs are changed at the rising edge of STB and don’t have Hi-Z

(High impedance) period.

RPI1 (RPI2) → impedance changed → RPO1 (RPO2)

Test

Input TEST = H or open: Normal operation mode

TEST = L: Test mode

γ -corrected power

− Input the γ -corrected power supplies from outside by using operational amplifier.

supplies

Make sure to maintain the following relationships. During the gray scale voltage

output, be sure to keep the gray scale level power supply at a constant level.

VDD2 – 0.1 V ≥ V0 > V1 > V2 > V3 > V4 > V5 > V6 > V7 > V8 ≥ 0.5 VDD2

0.5 VDD2 ≥ V9 > V10 > V11 >V12 > V13 > V14 >V5 > V16 > V17 ≥ VSS2 + 0.1 V

Logic power supply

− 2.7 to 3.6 V

Driver power supply − 10.5 to 13.5 V

Logic ground

− Grounding

Driver ground

− Grounding

Cautions 1. The power on sequence must be VDD1D, VDD1A, logic input, and VDD2 and V0-V17 in that order.

Reverse this sequence to shut down (Simultaneous power application to VDD2 and V0-V17 is

possible.).

2. To stabilize the supply voltage, please be sure to insert a 0.1 µ F bypass capacitor between

VDD1D, VDD1A-VSS1D, VDD1A and VDD2-VSS2. Furthermore, for increased precision of the D/A

converter, insertion of a bypass capacitor of about 0.01 µF is also advised between the γ -

corrected power supply pins (V0, V1, V2, ···, V17) and VSS2.

3. Because of the large power consumption of this driver IC, it is necessary to pay attention to the

driver IC's temperature for the Junction Temperature. So, it should be considered to use the

suitable mechanical design for the heat spreading and use the LPC function and the output

reset function for the power reduction. Especially, it is recommended to measure the

temperature of the driver IC surface.

Preliminary Product Information S16450EJ1V0PM00

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