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2470

AllegroMicroSystems
Part Number 2470
Manufacturer AllegroMicroSystems
Description BUSDRIVER/RECEIVER
Published Mar 23, 2005
Detailed Description 2470 BUS DRIVER / RECEIVER 2470 BUS DRIVER / RECEIVER The ULQ2470L and ULQ2470M are bi-directional bus driver / receive...
Datasheet PDF File 2470 PDF File

2470
2470

Overview
2470 BUS DRIVER / RECEIVER 2470 BUS DRIVER / RECEIVER The ULQ2470L and ULQ2470M are bi-directional bus driver / receivers designed specifically for automotive applications.
They are 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.
Data Sheet 27463 ULQ2470M VCC VS REXT BUS Rd Rd Td GND 1 2 3 4 8 7 6 5 FUNCTIONAL BLOCK DIAGRAM Dwg.
PP-061 Note that the ULQ2470M (DIP) and the ULQ2470L (SOIC) are electrically identical and share a common terminal number assignment.
ABSOLUTE MAXIMUM RATINGS at T A = 25°C Bus Supply Voltage Range, (VBAT) -13.
5 V to 27 V Logic Supply Voltage Range, (VCC) .
.
.
-0.
3 V to 9.
0 V Input Voltage Range, (VBUS ) .
.
-3.
0 V to 24 V Operating Temperature Range, TA .
-40°C to +85°C Junction Temperature Range, TJ .
.
-40°C to 150°C Storage Temperature Range, TS .
.
-65°C to 150°C D C E N U E N R I E T F N E O R C R S I O F D Rd 1 T C U D Y L O N R P EO 8 VCC 7 VS 22 kΩ 6 REXT BUS Rd 2 12 Ω 5 Td 3 CURRENT LIMIT 28 V 25 Ω 4 GND Dwg.
FP-039 — FEATURES AND BENEFITS s s s s s s s s s Over-Voltage Protection Diode Isolation from both Ground and Supply Reverse-Battery Protection Low Supply Current High Noise Immunity Output Current Limiting Low Standby Current—24 mA Max.
Open-Ground Protection Under-Voltage Lockout 2470 BUS DRIVER / RECEIVER ULQ2470L Dimensions in Inches (for reference only) 8 0.
0098 0.
0075 0.
1574 0.
1497 0.
2440 0.
2284 0.
050 0.
016 0.
020 0.
013 1 0.
1968 0.
...


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