NXP Semiconductors
PCF8531
34 x 128 pixel matrix driver
400
IDD
(μA)
300
200
mgs477
VLCD = 9 V
7.5 V
4V
400
IDD
(μA)
300
200
mgs478
2×
5×
4×
3×
100
2
3
4
5
VDD2 and VDD3 (V)
100
2
4
6
8
10
VLCD (V)
VDD1 = 2 V; 4 × voltage multiplier; Tamb = 27 °C; TC = 0;
BS = 100; no VLCD load.
Fig 23. Supply current as a function of supply
voltage 2 and supply voltage 3
VDD1 = 1.8 V; VDD2 and VDD3 = 2.6 V; Tamb = 27 °C;
fosc = 34 kHz; no VLCD load.
Fig 24. Supply current as a function of LCD supply
voltage; different multiplication factors
9
VLCD
(V)
8
7
mgs479
TC0
TC1
TC6
TC7
6
−50
0
50 T (°C) 100
VLCD = 7.5 V; VDD1 to VDD3 = 2.7 V; Tamb = 27 °C;
no VLCD load.
Fig 25. LCD supply voltage as a function of
temperature
30
I
(μA)
20
10
IDD(LCD)
IDD
mgs480
0
2
4
6
8
10
VLCD (V)
VDD1 = 1.8 V; VDD2 and VDD3 = 2.5 V; external VLCD;
Tamb = 27 °C; TC = 0; BS = 100; no VLCD load.
Fig 26. Supply current as a function of LCD supply
voltage
PCF8531
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 16 May 2011
© NXP B.V. 2011. All rights reserved.
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