Texas Instruments TPIC46L01, TPIC46L02, TPIC46L03 6-Channel Serial and Parallel Low-Side Pre-Fet Driver Data Sheet Manual

TPIC46L01, TPIC46L02, TPIC46L03

6-CHANNEL SERIAL AND PARALLEL LOW-SIDE PRE-FET DRIVER

SLIS055A – NOVEMBER 1996 - REVISED SEPTEMBER 1997

6-Channel Serial-in/Parallel-in Low-side DB PACKAGE (TOP VIEW)

Pre-FET Driver Device Can Be Cascaded

FLT VBAT

Internal 55-V Inductive Load Clamp and VCOMPEN GATE0 VGS Protection Clamp for External Power

VCOMP DRAIN0

IN0 GATE1

Independent Shorted-Load/Short-to-Battery IN1 DRAIN1 Fault Detection on All Drain Terminals IN2 DRAIN2

Independent Off-State Open-Load Fault IN3 GATE2 Sense IN4 GATE3 IN5 DRAIN3

Over-Battery-Voltage Lockout Protection

CS DRAIN4

and Fault Reporting

SDO GATE4

Under-Battery-Voltage Lockout Protection

SDI DRAIN5

for TPIC46L01 and TPIC46L02

SCLK GATE5

Asynchronous Open-Drain Fault Flag

VCC GND

Device Output Can be Wire-ORed with Multiple External Devices Fault Status Returned Through Serial Output Terminal Internal Global Power-on Reset of Device High-Impedance CMOS Compatible Inputs With Hysteresis TPIC46L01 and TPIC46L03 Disables the Gate Output When a Shorted-Load Fault Occurs TPIC46L02 Transitions the Gate Output to a Low-Duty-Cycle PWM Mode When a Shorted-Load Fault Occurs

description The TPIC46L01, TPIC46L02, and TPIC46L03 are low-side predrivers that provide serial input interface and parallel input interface to control six external field-effect transistor(FET) power switches such as offered in the TI TPIC family of power arrays. These devices are designed primarily for low-frequency switching, inductive load applications such as solenoids and relays. Fault status for each channel is available in a serial-data format. Each driver channel has independent off-state open-load detection and on-state shorted-load/short-to-battery detection. Battery overvoltage and undervoltage detection and shutdown are provided. Battery and output load faults provide real-time fault reporting to the controller. Each channel also provides inductive-voltage-transient protection for the external FET. These devices provide control of output channels through a serial input interface or a parallel input interface. A command to enable the output from either interface enables the respective channel GATE output to the external FET. The serial input interface is recommended when the number of signals between the control device and the predriver must be minimized, and the speed of operation is not critical. In applications where the predriver must respond very quickly or asynchronously, the parallel input interface is recommended.

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PRODUCTION DATA information is current as of publication date. Copyright  1997, Texas Instruments Incorporated

Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

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