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L9638 Datasheet(PDF) 1 Page - STMicroelectronics |
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L9638 Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 14 page  1/14 L9638 October 2004 1 FEATURES ■ Single-wire transceiver for LIN-protocol ■ Transmission rate up to 20 kbaud ■ Operating power supply voltage range 6V ≤ Vs ≤ 26V (40V for transients) ■ Low quiescent current in sleep mode (typ.10 µA) ■ Wake-up through LIN-bus, Enable input (from µC CMOS compatible) or Wake-up input (edge driven) ■ Wide input and output range -24V ≤ VLIN ≤ Vs ■ Integrated pull/down/up resistors for LIN, TxD, RxD, EN, INH ■ Inhibit output with low resistance (<40 Ω) versus Vs and short circuit protection ■ CMOS compatible TxD, RxD Interface ■ EMI robustness optimised ■ Thermal shutdown and LIN short circuit protection 2 DESCRIPTION The L9638 is a monolithic integrated circuit for LIN-bus interface function between the protocol handler in the controller and the physical bus in automotive applications. As well as it can be used in standard ISO 9141 systems. SO-8 LIN BUS TRANSCEIVER Figure 1. Block Diagram VS TxD WUP RxD LIN INH EN Internal Voltage Regulator Int.5V GND Glitch Filter Glitch Filter VS_D Control Logic Protection VS_D VS TxD WUP RxD LIN INH EN Internal Voltage Regulator Int.5V GND Glitch Filter VS TxD WUP RxD LIN INH EN Internal Voltage Regulator Int.5V GND Glitch Filter Glitch Filter VS_D Control Logic Protection VS_D Table 1. Order Codes Part Number Package L9638D SO-8 L9638D013TR Tape & Reel Rev. 4 |
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