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參數資料
| 型號： | 2470 |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | IC ARM920T MCU 200MHZ 352-PBGA |
| 中文描述： | 總線驅動器/接收 |
| 文件頁數： | 1/4頁 |
| 文件大小： | 53K |
| 代理商： | 2470 |
2470
BUS DRIVER / RECEIVER
DSCONTNUEDPRODUCT
Input Voltage Range,
(V
BUS
)...........................
-3.0 V to 24 V
Operating Temperature Range,
T
A
...............................
-40
°
C to +85
°
C
Junction Temperature Range,
T
J
................................
-40
°
C to 150
°
C
Storage Temperature Range,
T
S
................................
-65
°
C to 150
°
C
I
Under-Voltage Lockout
—FORREFERENCEONLY
I
Diode Isolation from both Ground and Supply
I
Reverse-Battery Protection
I
Low Supply Current
I
High Noise Immunity
I
Output Current Limiting
I
Low Standby Current—24 mA Max.
I
Open-Ground Protection
ABSOLUTE MAXIMUM RATINGS
at T
A
= 25
°
Bus Supply Voltage Range,
(V
BAT
).........................
-13.5 V to 27 V
Logic Supply Voltage Range,
BUS DRIVER / RECEIVER
FUNCTIONAL BLOCK DIAGRAM
d
d
d
GND
V
CC
V
R
EXT
BUS
5
4
7
2
3
8
CURRENT
LIMIT
22 k
12
25
28 V
D
2
The ULQ2470L and ULQ2470M are bi-directional bus driver /
intended to be used as an interface between a microprocessor and a
single-wire multiplex data bus operating from the A-line or battery.
Each device consists of a wave-shaped open-collector driver, a pull-up
resistor, and an input filter and buffer.
Output driver protection circuitry provides output shutdown if
currents in excess of 25 to 30 mA occur. Additionally, over-voltage
shutdown occurs when the bus voltage exceeds approximately
22 volts.
Dwg. FP-039
FEATURES AND BENEFITS
I
Over-Voltage Protection
2470
1
2
3
4
5
6
7
8
d
d
d
GND
V
CC
V
EXT
BUS
Dwg. PP-061
Note that the ULQ2470M (DIP) and the ULQ2470L
(SOIC) are electrically identical and share a
common terminal number assignment.
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