It accords with LIN2.0 standard and up to the protective physical interface device (Fig.) of 17kV static that the instrument of Dezhou introduces
A few days ago, Dezhou instrument claimed to be employed and put out an independent interconnection network of local area (LIN) to the car The transceiver, can realize that reach 17kV (international electronic technical committee) high And 12kV (dummy) Electrostatic protection (ESD) . This device already can offer for LIN bus line again through the transient test of ISO7637- error protection of 40V to 40V, this makes it get off the ideal choice of the network in the low speed car as severe environment. But TPIC1021 use with the intersection of group and the intersection of microcontroller and system in resistance-capacitance oscillator in conjunction, this realize the intersection of group and of new generation the intersection of car body and application in LIN, such as door module, window regulator of the window, seat control, intelligence sensor and intellectual drive mechanism,etc.. (More details, please see: www.ti.com/sc04220. )
TPIC1021 accords with LIN physical layer norm 2.0 revised edition, and car engineer's association (SAE) J2602 operational procedure suggestion put forward to LIN. The electrostatic protection of this device is up to 17kV (IEC) And 12kV (HBM) ,It is more than twice of the similar device, this reduces demand for the external protection assemble. TPIC1021 accords with LIN 2.0 specified data rate, up to every second 20.0 kBit, and behave on the low data rate that SAE J2602 proposes well too. Low power consumption ( Sleep) The mode can reduce current consumption and electromagnetic radiation to the greatest extent (EME) . TPIC1021 can control LIN bus line to press pendulum rate according to LIN 2.0 standard. In order to offer the electromagnetic antijamming capability of maximum (EMI) ,Radio frequency (RF) caused on the input filter reducible LIN bus of the transceiver Interference. More key characteristics " Main timing function (time-out) on TxD pin ; " Waking up (wake-up) on RxD pin Request; " Can wake up, input into, from the intersection of LIN and bus line (external switch) Or host computer microcontroller unit (MCU) Wake up; " Link with MCU through 5V or 3.3V I/O pin, perfect with TI microcontroller to cooperate; " Supplied power by Vsup (the vehicle carried battery) ,So LIN transceiver does not need outside Vcc again; " Low resistance INH switch control system stabilizator, can make TPIC1021 realize waking from LIN bus line or external switch up, but the other parts of the system are still in the standby mode; " Low electromagnetic radiation (EME) ,Electromagnetic disturbance ability of highly resistance (EMI) ; " Accord with ISO 7637 standard, the transient voltage that can bear the car environment is destroyed. Stock situation and pricing TPIC1021D has already begun to supply, can authorize the retail trader to order in batches through TI and at present, TPIC1021D adopts eight pins small-scaly (S08) Capsulation. When the batch is a thousand, propose the unit price of the retail is 0.55 dollars. TI has product series various in style, not merely can strengthen the characteristic, safety and comfortableness of the car, can also reduce the impact on environment at the same time. The products of TI include overall and integrated LIN subsystem and independent TPIC1021 device. More information substantially as wanting to understand TI vehicle carried products, please see: www.ti.com/automotive. www.ti.com.cn