ISO 9141接口 ISO 9141 INTERFACE
The is a monolithic integrated circuit containing standard ISO 9141 compatible interface functions.
**Key Features**
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Defined OFF output status in undervoltage condition and VS or GND interruption
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K output current limitation, typ. IK = 60 mA
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High input impedance for open VS or GND connection
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Controlled output slope for low EMI
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Defined K output OFF for TX input open
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Defined output ON status of LO or RX for open LI or K inputs
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EMI robustness optimized
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Integrated pull up resistors for TX, RX and LO
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Overtemperature shut down function Selective to K-I/O pin
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Bidirectional K-I/O pin with supply voltage dependent input threshold
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Operating power supply voltage range 4.5 V ≤ VS ≤ 36 V 40 V for transients
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Standby mode with very low current consumption ISSB ≤ 1 mA @ VCC ≤ 0.5 V
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Reverse supply battery protected down to VS ≥ -24 V
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TTL compatible TX input
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Wide input and output voltage range -24 V ≤ VK ≤ VS
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Low quiescent current in off condition ISOFF = 120 µA