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參數資料
| 型號： | LS7220 |
| 廠商： | LSI Corporation |
| 英文描述： | DIGITAL LOCK FOR AUTOMOTIVE IGNITIONS |
| 中文描述： | 數字鎖定汽車點火 |
| 文件頁數： | 2/4頁 |
| 文件大?。?/td> | 63K |
| 代理商： | LS7220 |
ABSOLUTE MAXIMUM RATINGS:
PARAMETER
DC Supply Voltage V
SS
- V
DD
+20
Any Input Voltage
Operating Temperature T
A
-25 to +85
Storage Temperature
SYMBOL
VALUE
UNIT
V
V
°C
°C
V
IN
V
SS
- 20 to V
SS
+ 0.5
T
STG
-65 to +150
TRANSIENT CHARACTERISTICS
: (See Figure 3)
(T
A
= -25°C to +85°C, V
SS
= +5V to +18V)
PARAMETER
SENSE High Delay to
Outputs Enabled
SYMBOL
T
SE
MIN
-
MAX
1
UNIT
μs
CONDITION
No external
capacitor, Pin 12
SENSE Low Delay to
Outputs Disabled
T
SD
-
10
μs
No external
capacitor, Pin 12
Input Pulse Widths
(except SENSE)
T
PW
25
-
μs
-
Valid Combination Entry to
LOCK Output Enabled
T
CE
-
10
μs
SENSE High
7220-012703-2
DC ELECTRICAL CHARACTERISTICS:
(All voltages referenced to V
DD
; T
A
= -25°C to +85°C unless otherwise specified.)
Vss voltages = 5V, 9V, 12V, 15V, 18V
PARAMETER SYMBOL MIN MAX UNIT CONDITION
Supply Voltage
V
SS
+5
Supply Current
I
SS
-
+18
V
μA
-
V
SS
voltages
20, 30, 40, 50, 70
*INPUT VOLTAGES:
SENSE Low
SENSE High
V
IL
V
IH
0
2, 3, 4, 6, 8.5
V
V
V
SS
voltages
V
SS
voltages
3.5, 5.5, 6.5, 9, 11.5
V
SS
CONVENIENCE DELAY Low
CONVENIENCE DELAY High
V
IL
V
IL
-
0.3Vss
-
-
-
Typical
Typical
0.7Vss
All Other Inputs:
Low
High
V
IL
V
IH
0
Vss - 3
Vss
V
V
-
-
Vss - 1
*NOTE 1
: All inputs have pull down resistors to V
DD
. Typical input sink current is 12μA with input at Vss (Vss - V
DD
= +12V)
OUTPUT CURRENT:
***LOCK STATUS
Source Current
Vo = +1.7V
I
O
0.4, 2.5, 5, 9, 14
1.3, 6, 12, 20, **30
mA
Vss voltages
***SAVE STATUS
Source Current
Vo = +1.7V
I
O
0.8, 5, 10, 18, 28
2.6, 12, 24, **30, **30
mA
Vss voltages
CONVENIENCE DELAY
I
O
0.1, 0.5, 0.7, 1, 1.2
0.5, 1.1, 1.6, 2.1, 2.4
mA
Vss voltages
LOCK
I
O
1.3, 6.5, 9.1, 13, 15.6
6.5, 14.7, 21, 27.3, **30
mA
Vss voltages
Inupt Capacitance
C
IN
-
10
pF
-
**
NOTE 2
: Limit current to 30mA maximum
***
NOTE 3
: LOCK STATUS and SAVE STATUS output currents are balanced to achieve equal brightness for red and green LEDs
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