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LX1670CD Datasheet(PDF) 4 Page - Microsemi Corporation

Part # LX1670CD
Description  5 - BIT PROGRAMMABLE VOTAGE REFERENCE
PDF  7 Pages
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Manufacturer  MICROSEMI [Microsemi Corporation]
Direct Link  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

LX1670CD Datasheet(HTML) 4 Page - Microsemi Corporation

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5-B IT P ROGRAMMABLE V O L TAGE R EFERENCE
LX1670
PRODUCT DA T ABOOK 1996/1997
Copyright © 1997
Rev. 1.0
7/97
4
P RODUCTION D ATA S HEET
FUNCTION T ABLES
01111
0
01110
0
01101
0
01100
0
01011
0
01010
0
01001
0
01000
0
00111
0
00110
0
00101
1.800
00100
1.850
00011
1.900
00010
1.950
00001
2.000
00000
2.050
D4
D3
D2
D1
D0
VIDO
Table 2 - VIDO Output (BLKEN pulled high or left open)
VCC < 1.0
X
X
X
X
Undefined
Undefined
Undefined
1.0 < VCC < UVLOT
X
X
X
X
LOW
LOW
LOW
VCC > UVLOT
X
0
X
X
LOW
LOW
LOW
VCC > UVLOT
VIDO Table
1
0
VS < 0.93VO
VIDO Table 3
LOW
LOW
VCC > UVLOT
VIDO Table
1
0
0.93VO < VS < 1.07VO
VIDO Table 3
HIGH
LOW
VCC > UVLOT
VIDO Table
1
0
1.07VO < VS < 1.15VO
VIDO Table 3
LOW
LOW
VCC > UVLOT
VIDO Table
1
0
VS > 1.15VO
VIDO Table 3
LOW
HIGH
VCC > UVLOT
VIDO Table
1
1
VS < 0.93VO
VIDO Table 2
LOW
LOW
VCC > UVLOT
VIDO Table
1
1
0.93VO < VS < 1.07VO
VIDO Table 2
HIGH
LOW
VCC > UVLOT
VIDO Table
1
1
1.07VO < VS < 1.15VO
VIDO Table 2
LOW
LOW
VCC > UVLOT
VIDO Table
1
1
VS > 1.15VO
VIDO Table 2
LOW
HIGH
V
CC
D4-D0
ENABLE
BLKEN
V
SENSE (VS)
VIDO (V
O)PGOOD
OV
OUT
Table 1 - Input vs. Output Functions
X
0
X
Disable
VIDO is pulled low through 10k
0
1
0
Low
VIDO is scaled. Output 1.3V to 2.05V
1
1
0
Normal
Normal Output 2.0 to 3.5V
0
1
1
Low
VIDO is scaled. Output 1.8V to 2.05V
1
1
1
Normal
Normal output 2.0 to 3.5V
D4
ENABLE
BLKEN
Mode
State
Table 4 - Mode Control
11111
2.00
11110
2.10
11101
2.20
11100
2.30
11011
2.40
11010
2.50
11001
2.60
11000
2.70
10111
2.80
10110
2.90
10101
3.00
10100
3.10
10011
3.20
10010
3.30
10001
3.40
10000
3.50
D4
D3
D2
D1
D0
VIDO
01111
1.300
01110
1.350
01101
1.400
01100
1.450
01011
1.500
01010
1.550
01001
1.600
01000
1.650
00111
1.700
00110
1.750
00101
1.800
00100
1.850
00011
1.900
00010
1.950
00001
2.000
00000
2.050
D4
D3
D2
D1
D0
VIDO
Table 3 - VIDO Output (BLKEN pulled low)
11111
2.00
11110
2.10
11101
2.20
11100
2.30
11011
2.40
11010
2.50
11001
2.60
11000
2.70
10111
2.80
10110
2.90
10101
3.00
10100
3.10
10011
3.20
10010
3.30
10001
3.40
10000
3.50
D4
D3
D2
D1
D0
VIDO



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