6-Channel Serial-In/Parallel-In Low-side
Pre-FET Driver
Device Can Be Cascaded
Internal 55-V Inductive Load Clamp and
VGS Protection Clamp for External Power
FETs
Independent Shorted-Load/Short-to-Battery
Fault Detection on All Drain Terminals
Independent Off-State Open-Load Fault
Sense
Over-Battery-Voltage Lockout Protection
and Fault Reporting
Under-Battery Voltage Lockout Protection
for TPIC46L01 and TPIC46L02
Asynchronous Open-Drain Fault Flag
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
Texas Instruments 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.