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AS2701A

Features: ` Simple two-wire bus (AS-Interface line)` Transmission of both power and signal on the AS-Interface line` Decoupling of power and signal by the IC without additional external devices` Transmitting protocol for using the IC and the AS-Interface master in the transmit/receive modes` Switc...

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AS2701A: Features: ` Simple two-wire bus (AS-Interface line)` Transmission of both power and signal on the AS-Interface line` Decoupling of power and signal by the IC without additional external devices` Tra...

AS2701A Data Sheet

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Part Number:
AS2701A
Supply Ability:
5000

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  • 1~5000
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  • Processing time
  • 15 Days
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Product Details

Description



Features:

` Simple two-wire bus (AS-Interface line)
` Transmission of both power and signal on the AS-Interface line
` Decoupling of power and signal by the IC without additional external devices
` Transmitting protocol for using the IC and the AS-Interface master in the transmit/receive modes
` Switching of max. 31 AS-Interface slave ICs on one bus possible
` Power supply of peripheral devices from the AS-Interface slave IC of up to 35mA@24V
` Only few external devices necessary for operation (quartz, 4 capacitors, E2PROM)
` Storing of the configuration data and the slave address in one E2PROM
` Quartz oscillator for 5.333 MHz without external capacitances
` Standards: AS-InterfaceSpec V2.0 and EN 50295


Pinout

Connection Diagram


Specifications

Symbol
Parameter
Min
Max
Unit
Note
VLTGP
 Positive Voltage
-0.3
40
V
1
VLTGPOV
 Positive Impulse Voltage
50
V
2
Vin1
 Voltage at D0. D3, P0. D3,DSTBn,PSTBn,CDC,OUT, TEST
VLTGN - 0.3
VLTGP + 0.3
V
Vin40V
Vin2
 Voltage at OSC1, OSC2, SDA,
SCL, U5R
VLTGN - 0.3
7
V
Iin
 Input Current on every Pin
-25
25
mA
H
 Non-Condensated Humidity
3
ESD
 Electrostatic Discharge
1000
V
4
STG
 Storing Temperature
-55
125
°C
lead
 Soldering Temperature
260
°C
5
Ptot
 Power Dissipation
1
W
6
Notes:
1 A polarity protection diode is to be used externally
2 Impulse width: 50 s; repetition rate: 0.5 Hz
3 Defined in DIN 40040 cond. F
4 HBM; R = 1.5 k; C = 100pF
5 260 °C for 10 s (reflow and wave soldering), 360 °C for 3 s (manual soldering)
6 SOIC 20: Rthja = 64.5 °K/W typ.


Description

The signal transmission of AS2701A between the master and the slaves in the AS-Interface system is performed by a parallel two-line wire (AS-Interface line) to which the IC is connected only via a polarity protection diode and a suppressor diode. The line of AS2701A is powered by a direct dc voltage of up to 33.1 V, on which data pulses with signal amplitudes of (3...8) Vpp are superimposed. The IC extracts AS2701A own power and the power for peripherals from the line and detects the bus signals.
The AS-Interface slave IC consists of the following blocks:
· Receive Block
· Transmit Block
· Digital Logic Block
· Emergency Control Block
· Internal and External Power Supply with Signal decoupling
· Oscillator
· Power on Reset
· High Voltage I/O




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