LX1670 View Datasheet(PDF) - Microsemi Corporation
Part Name
Description
Manufacturer
LX1670 Datasheet PDF : 7 Pages
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LX1670
PRODUCT DATABOOK 1996/1997
5-BI T PROGRAMMABLE VOLTAGE REFERENCE
PRODUCTION DATA SHEET
FUNCTION TABLES
Table 1 - Input vs. Output Functions
VCC
VCC < 1.0
1.0 < VCC < UVLOT
VCC > UVLOT
VCC > UVLOT
VCC > UVLOT
VCC > UVLOT
VCC > UVLOT
VCC > UVLOT
VCC > UVLOT
VCC > UVLOT
VCC > UVLOT
D4-D0
X
X
X
VIDO Table
VIDO Table
VIDO Table
VIDO Table
VIDO Table
VIDO Table
VIDO Table
VIDO Table
ENABLE
X
X
0
1
1
1
1
1
1
1
1
BLKEN
X
X
X
0
0
0
0
1
1
1
1
VSENSE (VS)
X
X
X
VS < 0.93VO
0.93VO < VS < 1.07VO
1.07VO < VS < 1.15VO
VS > 1.15VO
VS < 0.93VO
0.93VO < VS < 1.07VO
1.07VO < VS < 1.15VO
VS > 1.15VO
VIDO (VO)
Undefined
LOW
LOW
VIDO Table 3
VIDO Table 3
VIDO Table 3
VIDO Table 3
VIDO Table 2
VIDO Table 2
VIDO Table 2
VIDO Table 2
PGOOD
Undefined
LOW
LOW
LOW
HIGH
LOW
LOW
LOW
HIGH
LOW
LOW
Table 2 - VIDO Output (BLKEN pulled high or left open)
D4
D3
D2
D1
D0
0
1
1
1
1
0
1
1
1
0
0
1
1
0
1
0
1
1
0
0
0
1
0
1
1
0
1
0
1
0
0
1
0
0
1
0
1
0
0
0
0
0
1
1
1
0
0
1
1
0
0
0
1
0
1
0
0
1
0
0
0
0
0
1
1
0
0
0
1
0
0
0
0
0
1
0
0
0
0
0
VIDO
0
0
0
0
0
0
0
0
0
0
1.800
1.850
1.900
1.950
2.000
2.050
D4
D3
D2
D1
D0
1
1
1
1
1
1
1
1
1
0
1
1
1
0
1
1
1
1
0
0
1
1
0
1
1
1
1
0
1
0
1
1
0
0
1
1
1
0
0
0
1
0
1
1
1
1
0
1
1
0
1
0
1
0
1
1
0
1
0
0
1
0
0
1
1
1
0
0
1
0
1
0
0
0
1
1
0
0
0
0
Table 3 - VIDO Output (BLKEN pulled low)
D4
D3
D2
D1
D0
VIDO
D4
D3
D2
D1
D0
0
1
1
1
1
0
1
1
1
0
0
1
1
0
1
0
1
1
0
0
0
1
0
1
1
0
1
0
1
0
0
1
0
0
1
0
1
0
0
0
0
0
1
1
1
0
0
1
1
0
0
0
1
0
1
0
0
1
0
0
0
0
0
1
1
0
0
0
1
0
0
0
0
0
1
0
0
0
0
0
1.300
1.350
1.400
1.450
1.500
1.550
1.600
1.650
1.700
1.750
1.800
1.850
1.900
1.950
2.000
2.050
1
1
1
1
1
1
1
1
1
0
1
1
1
0
1
1
1
1
0
0
1
1
0
1
1
1
1
0
1
0
1
1
0
0
1
1
1
0
0
0
1
0
1
1
1
1
0
1
1
0
1
0
1
0
1
1
0
1
0
0
1
0
0
1
1
1
0
0
1
0
1
0
0
0
1
1
0
0
0
0
Table 4 - Mode Control
D4
ENABLE
BLKEN
X
0
X
Mode
Disable
State
VIDO is pulled low through 10k
0
1
1
1
0
Low
VIDO is scaled. Output 1.3V to 2.05V
0
Normal
Normal Output 2.0 to 3.5V
0
1
1
1
1
Low
VIDO is scaled. Output 1.8V to 2.05V
1
Normal
Normal output 2.0 to 3.5V
OVOUT
Undefined
LOW
LOW
LOW
LOW
LOW
HIGH
LOW
LOW
LOW
HIGH
VIDO
2.00
2.10
2.20
2.30
2.40
2.50
2.60
2.70
2.80
2.90
3.00
3.10
3.20
3.30
3.40
3.50
VIDO
2.00
2.10
2.20
2.30
2.40
2.50
2.60
2.70
2.80
2.90
3.00
3.10
3.20
3.30
3.40
3.50
4
Copyright © 1997
Rev. 1.0 7/97
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