参数资料
型号: LP5521TMEV
厂商: National Semiconductor
文件页数: 6/44页
文件大小: 0K
描述: EVAL BOARD FOR LP5521
标准包装: 1
系列: *
其它名称: Q5109809

SNVS441F – JANUARY 2007 – REVISED FEBRUAY 2013
LOGIC INTERFACE CHARACTERISTICS
(V(EN) = 1.65V...V DD unless otherwise noted)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
LOGIC INPUT EN
V IL
V IH
Input Low Level
Input High Level
1.2
0.5
V
V
I I
Logic Input Current
? 1.0
1.0
μA
t DELAY
Input delay
(1)
2
μs
LOGIC INPUT SCL, SDA, TRIG, CLK_32K
V IL
V IH
Input Low Level
Input High Level
0.8xV(EN)
0.2xV(EN)
V
V
I I
f CLK_32K
f SCL
Input Current
Clock frequency
Clock frequency
-1.0
32
1.0
400
μA
kHz
kHz
LOGIC OUTPUT SDA, TRIG, INT
V OL
I L
Output Low Level
Output Leakage Current
I OUT = 3 mA (pull-up current)
0.3
0.5
1.0
V
μA
LOGIC INPUT ADDR_SEL0, ADDR_SEL1
V IL
V IH
Input Low Level
Input High Level
0.8xV DD
0.2xV DD
V
V
I I
Input Current
–1.0
1.0
μA
LOGIC OUTPUT GPO, INT (in GPO state)
V OL
Output Low Level
I OUT = 3 mA
0.3
0.5
V
V OH
I L
Output High Level
Output leakage current
I OUT = -2 mA
V DD - 0.5
V DD - 0.3
1.0
V
μA
(1)
The I 2 C-compatible host should allow at least 1 ms before sending data to the LP5521 after the rising edge of the enable line.
I 2 C TIMING PARAMETERS (SDA, SCL) (1)
Symbol
Parameter
Min
Limit
Max
Units
f SCL
1
2
3
4
5
6
Clock Frequency
Hold Time (repeated) START Condition
Clock Low Time
Clock High Time
Setup Time for a Repeated START Condition
Data Hold Time
Data Setup Time
0.6
1.3
600
600
50
100
400
kHz
μs
μs
ns
ns
ns
ns
7
8
9
10
C b
Rise Time of SDA and SCL
Fall Time of SDA and SCL
Set-up Time for STOP condition
Bus Free Time between a STOP and a START Condition
Capacitive Load for Each Bus Line
20+0.1C b
15+0.1C b
600
1.3
10
300
300
200
ns
ns
ns
μs
pF
(1)
Verified by design.
6
Product Folder Links: LP5521
Copyright ? 2007–2013, Texas Instruments Incorporated
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