71M6541F-DB Maxim Integrated Products, 71M6541F-DB Datasheet - Page 146
71M6541F-DB
Manufacturer Part Number
71M6541F-DB
Description
Power Management Modules & Development Tools 71M6541 Eval Kit
Manufacturer
Maxim Integrated Products
Datasheet
1.71M6541F-DB.pdf
(165 pages)
Specifications of 71M6541F-DB
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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6.4.13 VLCD Generator
146
Parameter
VSYS to VLCD switch impedance
VBAT to VLCD switch impedance
LCD Boost Frequency
VLCD IOH current
From LCDADJ0 and LCDADJ12 fuses:
The above equations describe the nominal value of VLCD for a specific LCD_DAC value. The
specifications below list the maximum deviation between actual VLCD and VLCDnom. Note that when
VCC and boost are insufficient, the LCD DAC will not reach its target value and a large negative error
will occur.
LCD_DAC Error. VLCD-VLCDnom
(see note 1)
Full Scale, with Boost
LCD_DAC Error. VLCD-VLCDnom
DAC=12, with Boost
LCD_DAC Error. VLCD-VLCDnom
Zero Scale, with Boost
LCD_DAC Error. VLCD-VLCDnom
Full Scale, no Boost
VBAT=4.0 V, V3P3=0, BRN Mode
VBAT=2.5 V, V3P3=0, BRN Mode
(VLCD(0)-VLCD(IOH)<0.25)
V3P3 =3.6 V
V3P3 =3.0 V
V3P3 = 3.6 V
V3P3 = 3.0 V
VBAT = 2.5 V, V3P3 = 0 V, BRN Mode
V3P3 = 3.6 V
V3P3 = 3.0 V
VBAT = 4.0 V, V3P3 = 0 V, BRN Mode
VBAT = 2.5 V, V3P3 = 0 V, BRN Mode
V3P3 = 3.6 V (see note 1)
V3P3 = 3.0 V (see note 1)
VBAT = 4.0 V, V3P3 = 0 V, BRN Mode
VBAT = 2.5 V, V3P3 = 0 V, BRN Mode
(see note 1)
( _ ) = 5 �0 +
Table 108: LCD Driver Performance Specifications
© 2008–2011 Teridian Semiconductor Corporation
( _ ) = 2.65 + 2.65
Condition
V3P3 = 3.3 V,
RVLCD=removed, LCD_BAT=0,
LCD_VMODE[1:0]=0,
∆ILCD=10 µA
V3P3 = 0 V, VBAT = 2.5 V,
RVLCD =removed, LCD_BAT =1,
LCD_VMODE[1:0]=0,
∆ILCD=10 µA
LCD_VMODE[1:0] = 2,
RVLCD = removed,
CVLCD = removed
LCD_VMODE[1:0] = 2,
LCD_CLK[1:0] = 2,
RVLCD = removed,
V3P3 = 3.3V,
LCD_DAC[4:0] = 1F
LCD_VMODE[1:0] = 2,
LCD_DAC[4:0] = 1F,
LCD_CLK[1:0]=2,
LCD_MODE[2:0]=6
LCD_VMODE[1:0] = 2,
LCD_DAC[4:0] = C,
LCD_CLK[1:0]=2,
LCD_MODE[2:0]=6
LCD_VMODE[1:0] = 2,
LCD_DAC[4:0] =0,
LCD_CLK[1:0]=2,
LCD_MODE[2:0]=6
LCD_VMODE[1:0] = 1,
LCD_DAC[4:0] = 1F,
LCD_CLK[1:0]=2,
LCD_MODE[2:0]=6
PLL_FAST=1
PLL_FAST=0
_
12 − 0
31
+ ( _ )
12
-0.15
-0.15
-0.15
-0.15
-0.15
-0.15
-0.15
-0.15
-0.15
Min
-0.4
-1.3
-2.1
-2.8
-1.8
-3.2
10
_�
Typ
820
786
Max
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
0.15
750
700
Unit
kHz
kHz
µA
Ω
Ω
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
v1.1
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