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TPIC46L03DB Fiches technique(PDF) 4 Page - Texas Instruments |
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TPIC46L03DB Fiches technique(HTML) 4 Page - Texas Instruments |
4 / 19 page TPIC46L01, TPIC46L02, TPIC46L03 6-CHANNEL SERIAL AND PARALLEL LOW-SIDE PRE-FET DRIVER SLIS055A – NOVEMBER 1996 - REVISED SEPTEMBER 1997 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 Terminal Functions TERMINAL I/O DESCRIPTION NAME NO. I/O DESCRIPTION CS 10 I Chip select. A high to low transition on the CS enables SDO, latches fault data into the serial interface, and refreshes the fault flag. When CS is high, the fault registers can change fault status. On the falling edge of CS, fault data is latched into the serial output register and transferred using SDO and SCLK. On a low to high transition of CS, serial data is latched in to the output control register. DRAIN0 DRAIN1 DRAIN2 DRAIN3 DRAIN4 DRAIN5 26 24 23 20 19 17 I FET drain inputs. DRAIN0 through DRAIN5 are used for both open-load and short-circuit fault detection at the drain of the external FETs. They are also used for inductive transient protection. FLT 1 O Fault flag. FLT is an open-drain output that provides a real-time fault flag for shorted-load/open-load/over-battery voltage/under-battery voltage faults. The device can be ORed with FLT on other devices for interrupt handling. FLT requires an external pullup resistor. GATE0 GATE1 GATE2 GATE3 GATE4 GATE5 27 25 22 21 18 16 O Gate drive output. GATE0 through GATE5 outputs are derived from the VBAT supply. Internal clamps prevent the voltages on these nodes from exceeding the VGS rating on most FETs. GND 15 I Ground and substrate IN0 IN1 IN2 IN3 IN4 IN5 4 5 6 7 8 9 I Parallel gate driver inputs. IN0 through IN5 are real-time controls for the gate predrive circuitry. They are CMOS compatible with hysteresis. SCLK 13 I Serial clock. SCLK clocks the shift register. Serial data is clocked into SDI and serial fault data is clocked out of SDO on the falling edge of the serial clock. SDI 12 I Serial data input. Output control data is clocked into the serial register through SDI. A 1 on SDI commands a particular gate output on and a 0 turns it off. SDO 11 O Serial data output. SDO is a 3-state output that transfers fault data to the controling device. It also passes serial input data to the next stage for cascaded operation. SDO is taken to a high-impedance state when CS is in a high state. VBAT 28 I Battery supply voltage input VCC 14 I Logic supply voltage VCOMPEN 2 I Fault reference voltage select. VCOMPEN selects the internally generated fault reference voltage (0) or an external fault reference (1) to be used in the shorted- and open-load fault detection circuitry. VCOMP 3 I Fault reference voltage. VCOMP provides an external fault reference voltage for the shorted- and open-load fault detection circuitry. |
Numéro de pièce similaire - TPIC46L03DB |
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Description similaire - TPIC46L03DB |
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