IPS1025H STMICROELECTRONICS | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 32
Technical content
Datasheet sections
- 1 Block diagram
- 2 Pin connection
- 3 Absolute maximum ratings
- 4 Thermal data
- 5 Electrical characteristics
- 6 Output Logic
- 7 Protections and diagnostic
- 7.1 Under-voltage lock-out
- 7.2 Over-temperature
- 7.3 Overload
- 7.3.1 Overload protection with dual threshold
- 7.3.2 Overload protection with single (low) threshold
- 7.3.3 Overload protection with single (high) threshold
- 7.4 VCC disconnection protection
- 7.5 GND disconnection protection
- 8 Active clamp
- 9 Package information
- 9.1 Package mechanical data
- 10 Packing information
- 10.1 Packing mechanical data
- 11 Ordering information
Features
- 8 V to 60 V operating supply voltage range
- Operating output current: 2.4 A (IPS1025H/HQ) or 5.6 A (IPS1025H-32/HQ-32)
- Smart driving of capacitive load
- Fast demagnetization of inductive loads
- Under-voltage lock-out
- V CC over-voltage protection
- Output overload and over-temperature protections
- Case over-temperature protection
- Ground disconnection protection
- Overload event diagnostic pin
- Over-temperature event diagnostic pin
- Designed to meet IEC 61000-4-2, IEC 61000-4-4, IEC 61000-4-5
- Packages: PowerSSO-24 and QFN48L 8x6x0.9 mm
Applications
- Programmable logic control
- Vending machines
- Industrial PC peripheral input/output
- Numerical control machines
- General high-side switch applications
Description
The IPS1025H/HQ and IPS1025H-32/HQ-32 are single high-side switch ICs able to drive capacitive, resistive or inductive loads with one side connected to ground. The very low RDS-ON (≤ 25 mΩ up to TJ = 125 °C) makes the IC suitable for the applications with up to 2.4 A (IPS1025H/HQ) or 5.6 A (IPS1025H-32/HQ-32) steady state operating current. The output channel is protected against junction over-temperature events by a junction temperature sensor, and a further temperature sensor is included to monitor case temperature, so the overheated output channel can only be turned back ON when the case temperature returns below the reset temperature. The embedded overload protection circuit monitors the output current and, on triggering of the activation threshold (IPK), starts modulating the impedance of the output switch to limit the output current to ILIM, for both IC and load protection. The IC offers two different sets of activation threshold and limitation levels (IPKH, ILIMH and IPKL, ILIML) for smart driving of capacitive loads (such as bulb lamps) and loads with initial peak current requirements. The IC diagnostics is based on FLT1 and FLT2 pins (both current source); activated by respective overload or overtemperature events on the output channel. Product status link IPS1025H IPS1025H-32 IPS1025HQ IPS1025HQ-32 Product label High efficiency, high-side switch with extended diagnostics and smart driving for capacitive loads IPS1025H, IPS1025H-32 IPS1025HQ, IPS1025HQ-32 DS13780 - Rev 3 - August 2022 For further information contact your local STMicroelectronics sales office.
1 Block diagram
Figure 1. IPS1025H/HQ, IPS1025H-32/HQ-32 block diagram
2 Pin connection
Figure 2. Pin connections (top through view) Table 1. Pin descriptions Initial current duration / level selector. IPKH (see Section 7.3 and Table 9 / Table 10). IPKL (the over-current threshold is only IPKH).
3 Absolute maximum ratings
under these conditions is not implied. All voltages are referenced to GND. Table 2. Absolute maximum ratings
- intended as worst case when IC is in normal operation (no fault)
4 Thermal data
Table 3. Thermal data
- Rth between the die and the bottom case surface measured by cold plate as per JESD51.
5 Electrical characteristics
(8 V < VCC < 60 V; -40 °C < TJ < 125 °C, unless otherwise specified) Table 4. Supply Table 5. Output stage Table 6. Switching
Electrical characteristics
Figure 3. Timing Table 7. Input pin (IN) Table 8. Diagnostic pins (FLT1, FLT2) IHFLT Diagnostic pins source current in fault condition.
Table 9. IPS1025H/HQ Overload protections Table 10. IPS1025H-32/HQ-32 Overload protections
Figure 4. High (left) and Low (right) ILOAD control activation thresholds (IPK) and limitation levels (ILIM) Table 11. Other protections
6 Output Logic
Table 12. Output stage truth table
- Pin voltage = I OUT * RLOAD
Figure 5. Typical application diagram with opto-couplers
Figure 6. Typical application diagram without opto-couplers
7 Protections and diagnostic
The IC integrates several protections to help the design of robust applications.
7.1 Under-voltage lock-out
The IC is turned off if the voltage on VCC pin falls below the turn-off threshold (VUVOFF). Normal operation restarts after VCC exceeds the turn-on threshold (VUVON). Turn-on and turn-off thresholds are defined in Table 4.
7.2 Over-temperature
The device is protected against overheating in case of overload conditions. During the driving period (when the MCU is forcing the IN pin high), if the output is overloaded, the device suffers two different thermal stresses: one related to the junction temperature of each output channel, and the other related to the whole case temperature. The two thermal faults (Thermal Junction and Thermal Case) have different trigger thresholds: TJSD and TCSD, respectively. Usually, in thermal stress conditions due to overload, the junction thermal shutdown is the first protection that is activated: the output channel (OUT) is turned off when its junction temperature (TJ) is higher than the activation threshold (TJSD) and turned back on when it falls below the reset threshold (TJR). This behavior continues while overload on the output persists. When the thermal protection is active, the FLT1 (current source) becomes active accordingly. If the thermal protection is active and the temperature of the case (TC) increases over the case protection threshold (TCSD), then the thermal case protection is activated and the output is switched off until the junction temperature and case temperature fall below their respective reset thresholds (TCR and TJR). The FLT1 pin is active even when thermal case events occur. Figure 7 shows the thermal protection behavior, while Figure 8 shows typical temperature trends and output vs. input state. IPS1025H, IPS1025H-32, IPS1025HQ, IPS1025HQ-32 Protections and diagnostic DS13780 - Rev 3 page 12/32
7.3 Overload
The IC integrates an overload protection circuit consisting of an output current sensing section and an output current limitation section. When the output channel is ON, the sensing circuitry monitors the current supplied to the load: if the activation threshold (IPK) is triggered, then the current limitation control circuitry is activated to limit output current to the current limitation level (ILIM) and FLT2 pin is activated until the overload condition is removed. See the following sections for details and Table 9 / Table 10 for specific activation thresholds and limitation levels. Note that while the output channel operates below its activation threshold, the power dissipation can be calculated by RON * IOUT 2, but when the current limitation circuit is activated, power dissipation increases and can be calculated by VDS * IOUT, where VDS is the voltage drop between the OUT and VCC pins of the IC. In order to protect the IC against thermal stress, the over-temperature protection is always active and retains the highest priority.
7.3.1 Overload protection with dual threshold
This case is activated when the pin IPD is connected to GND by a capacitor (CPD) and the IC works with two activation thresholds IPKH and IPKL. The IPKH is active only in the limited time frame between the L-H transition of the IN signal and the DPK delay defined by the following design rule: D PK µ s = 215 × C PD n F The above design rule is valid in the range 470 pF ≤ CPD ≤ 470 nF (see Table 9 / Table 10). If the IPKH is triggered within the DPK time frame, then the output current is limited to ILIMH. After DPK has elapsed, the IC operates with IPKL activation threshold and ILIML limitation level, respectively. IPS1025H, IPS1025H-32, IPS1025HQ, IPS1025HQ-32 Overload DS13780 - Rev 3 page 14/32
Figure 9. Short-circuit behavior with dual threshold (TCASE < TCSD)
7.3.2 Overload protection with single (low) threshold
This condition is equivalent to setting DPK = 0 μs. Note: Leaving I PD floating is equivalent to having an initial peak duration of 1 μs.
7.3.3 Overload protection with single (high) threshold
7.4 VCC disconnection protection
the output channel can be driven normally until the voltage on VCC pin remains higher than the UVLO threshold. inductance is discharged through the power switch thanks to the integrated demagnetization circuit.
7.5 GND disconnection protection
output channel is turned off regardless of the input status. disconnection event, a current (ILGND) flows through OUT pin. power, which is activated by an active clamp as if the input had been deactivated. Figure 10. Ground disconnection
8 Active clamp
driver turns off an inductance, an under-voltage on output is detected. IC internal switch and load resistance. Figure 11. Active clamp equivalent principle schematic Figure 12. Typical demagnetization energy (single pulse) at VCC = 24 V and TAMB = 125 °C
9 Package information
In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ECOPACK is an ST trademark.
9.1 Package mechanical data
Figure 13. PowerSSO-24 package dimensions [mm] Table 13. PowerSSO-24 mechanical data
Package information
DS13780 - Rev 3 page 18/32
Figure 14. PowerSSO-24 suggested footprint [mm] suggestion which may differ from the customer PCB supplier design rules.
Figure 15. QFN48L package dimensions [mm]
Table 14. QFN48L mechanical data Table 15. Tolerance of forms and positions Figure 16. QFN48L suggested footprint [mm]
10 Packing information
10.1 Packing mechanical data
Figure 17. PowerSSO-24 tube shipment (no suffix) Table 16. PowerSSO-24 tube shipment information
Figure 18. PowerSSO-24 reel shipment Table 17. PowerSSO-24 reel information
Figure 19. PowerSSO-24 tape drawings Table 18. PowerSSO-24 tape dimension Note: According to the Electronic Industries Association (EIA) standard 481 rev. A, Feb 1986.
Figure 20. QFN48L reel shipment reference Table 19. Standard SPC parameters
Table 20. Ordering information
Ordering information
DS13780 - Rev 3 page 27/32
Revision history
Table 21. Document revision history 15-Nov-2021 1 Initial release. changed fig.12; some minor changes.
IMPORTANT NOTICE – READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgment. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. For additional information about ST trademarks, refer to www.st.com/trademarks. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2022 STMicroelectronics – All rights reserved IPS1025H, IPS1025H-32, IPS1025HQ, IPS1025HQ-32 DS13780 - Rev 3 page 32/32