Description

The IPS4260L is a monolithic high speed (FSW up to 250 kHz) device, which

can drive four independent capacitive, resistive or inductive loads with one side

connected to supply voltage. The channels can be parallelized to reduce power

dissipation.

When connected to Vcc rail, four integrated catch diodes clamp the turn-off transients

generated by inductive loads even with huge inductance; combined with proper

external TVS connected to VCC or to GND the IC allows fast decay, too. Each

channel is protected against overload or short circuit event: the intervention level can

be set by an external resistor on ILIM pin .

Built-in thermal shutdown protects the chip against overtemperature even in case of

short-circuit. If enabled, the integrated cut-off protection features a non-dissipative

protection in case of overload; it limits both the output average current value and,

consequently, the device overheating. Cut-off delay/restart can be programmed by

external resistors on CoD pin; it can be disabled by shorting CoD to GND.

Features

• 8 V to 50 V operating voltage range

• Four independent protected channels

• VCC undervoltage lock-out

• High speed operation (tr

, tf

< 1 μs)

• Programmable load current limitation level by external resistor

• Typical operating load current: 0.5 A (per channel) / 2 A (one channel)

• Thermally independent junction overtemperature protections

• Programmable non-dissipative short-circuit protection (cut-off) by external

resistor

• Open load (off-state) and short-to-ground activated by external pull-down

resistors

• Fast demagnetization of inductive loads with integrated catch diodes clamping

turn-off transients

• Ground and VCC wire break protection

• VCC overvoltage protection

• Common open load diagnostic

• Common thermal shutdown and overload diagnostic

• Per channel thermal shutdown diagnostic

• Designed to meet IEC 61131-2

• Miniaturized HTSSOP20 package

Application

• Programmable logic control

• Industrial PC peripheral input/output

• Numerical control machines

• General low-side switch applications