max5436eubt Maxim Integrated Products, Inc., max5436eubt Datasheet - Page 9
max5436eubt
Manufacturer Part Number
max5436eubt
Description
?15v, 128-tap, Low-drift Digital Potentiometers
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.MAX5436EUBT.pdf
(11 pages)
Figure 4. Noninverting Amplifier
Figure 5a. Simplified LCD Contrast Control Circuit
Figure 5b. Simplified LCD Contrast Control Circuit with Buffer
±15V, 128-Tap, Low-Drift Digital Potentiometers
V
S
R1
MAX427
+15V
-15V
_______________________________________________________________________________________
L
MAX629
MAX629
R2
DC/DC CONVERTER
DC/DC CONVERTER
W
(SIMPLIFIED)
(SIMPLIFIED)
CONTROL
CONTROL
V
V
V
O
MAX5436–
MAX5439
BATT
BATT
/V
S
= 1 + R
2
/R
1
H
V
O
MAX5439
MAX5436–
MAX5437/
MAX5439
(LCD BIAS)
(LCD BIAS)
V
V
OUT
OUT
MICROCONTROLLER/MICROPROCESSOR
FIXED 28V IN
16V TO 26V CONTRAST ADJUST
MICROCONTROLLER/MICROPROCESSOR
FIXED 28V IN
16V TO 26V CONTRAST ADJUST
PANEL
LCD
PANEL
LCD
9