pcf1175c NXP Semiconductors, pcf1175c Datasheet - Page 5

• Manufacturer Part Number: pcf1175c
• Description: 4-digit Duplex Lcd Car Clock
• Manufacturer: NXP Semiconductors

Philips Semiconductors
LCD voltage (see Fig.5)
The adjustable voltage regulator controls the supply
voltage (see Section “LCD voltage programming”) in
relation to temperature for good contrast, for example
when V
V
V
1997 Apr 16
DD
DD
4-digit duplex LCD car clock
(1) Programmed to 4.0 V at 25 C (value within the specified operating range).
(2) Programmed to 4.5 V at 25 C (value within the specified operating range).
(3) Programmed to 5.0 V at 25 C (value within the specified operating range).
= 3 to 4 V at +85 C.
= 5 to 6 V at 40 C.
DD
= 4.5 V at +25 C, then:
Fig.5 Regulated voltage as a function of temperature (typical).
V SS
(V)
8
6
4
2
0
40
(3)
(2)
(1)
0
5
40
80
T ( C)
MSA995
o
120
Product specification
PCF1175C