Document
IPS4260L
Datasheet
Quad low-side intelligent power switch
HTS S OP20
Product status link IPS4260L
Product summary
Order code
IPS4260L
Package
HTSSOP20
Packing
Tube
Order code
IPS4260LTR
Package
HTSSOP20
Packing
Tape & Reel
Product label
Features
RDS(on) (typ.)
IOUT
VCC AMR
0.26 Ω
4 ch 0.5 A
1 ch 2.0 A
55 V
• 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
Applications
• Programmable logic control • Industrial PC peripheral input/output • Numerical control machines • General low-side switch applications
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 .
DS12305 - Rev 3 - April 2020 For further information contact your local STMicroelectronics sales office.
www.st.com
IPS4260L
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. Two common diagnostic open drains pins (OL, for open load and FLT for cut-off and thermal shutdown) together with the four open drain on each INx pin (cut-off and thermal shutdown) feature an extensive diagnostic of the chip.
DS12305 - Rev 3
page 2/28
IPS4260L
Block diagram
1 Block diagram
Figure 1. Block diagram
VCC
UVLO
VCLAMP
IN1
VZ LOAD1
IN2 GATE
IN3 DRIVERS
LOGIC IN4 INTERFACE
LOAD2 LOAD3 LOAD4
OL FLT
SGND
CURRENT LIMITATION CUT-OFF
THERMAL JUNCTION.