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The L9958 is an SPI controlled H-Bridge, designed for the control of DC and stepper motors in safety critical applications and under extreme environmental conditions.
The H-Bridge is protected against over temperature, short circuits and has an undervoltage lockout for all the supply voltages Vsand Vdd, and for overvoltage on Vdd. All malfunctions cause the output stages to go tristate.
Detailed failure diagnostics on each channel is provided via SPI: short circuit to battery, short circuit to ground, short circuit overload, over temperature.
Open-load can be detected in ON condition, for the widest application ranges. Current regulation threshold can be set by SPI from 2.5 A to 8.6 A (Typ.), in 4 steps. Guaranteed accuracy is ±10 % on all temp range, using an external reference resistor with 1% accuracy over all temp range.
Current limitation threshold is linearly reduced by temperature over 165 °C.and a thermal warning bit is set by SPI. The H-Bridge contains integrated free-wheel diodes. In case of free-wheeling condition, the low side transistor is switched on in parallel of its diode to reduce power dissipation.
A multiple wire bonding technique, as well as ST proprietary package design is making L9958 compatible with three power packages, for maximum flexibility:
PowerSO-20 package (medium power, JEDEC standard MO166);PowerSO16 package (medium power, lower cost);PowerSSO24 package (low power, very low cost JEDEC standard MO271A).Key Features
- Programmable current regulation peak threshold by SPI up to 8.6 A typ.
- Operating battery supply voltage 4.0 V to 28 V
- Operating Vdd supply voltage 4.5 V to 5.5 V
- All pins withstand 19 V, Vs and output pins withstand 40 V
- Full path Ronfrom 100 mΩ (at Tj = -40 °C) to 300 mΩ (at Tj=150 °C)
- Logic inputs TTL/CMOS-compatible
- Operating frequency up to 20 kHz
- 16-bit SPI interface for configuration/diagnostics, daisy chain capability
- Over temperature and short circuit protection
- VSundervoltage disable function
- Vddundervoltage and overvoltage protection
- Vddovervoltage detection
- Open-load detection in ON condition
- Full diagnostics in OFF state
- Enable and disable input
- Low stand by current (<10 μA)
- Voltage and current slew-rate control for low EMI, programmable through SPI
- Available in three power packages
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Sample & Buy
| Part Number | Package | Packing Type | Temperature (°C) | Marketing Status | ECCN (US) | Country of Origin | Approximate Price (US$)* / Qty | Order from ST | Order from Distributors | |
|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||
| L9958XPTR | PowerSSO 24 | Tape And Reel | - | - | Active | EAR99 | MALAYSIA | 2.7 / 1k | Get sample | Check Availability |
| L9958SBTR | PowerSO 16 | Tape And Reel | - | - | Active | EAR99 | MALAYSIA | 2.8 / 1k | Get sample | Check Availability |
| L9958XP | PowerSSO 24 | Tube | - | - | Active | EAR99 | MALAYSIA | 4.98 / 1k | Buy now | Check Availability |
| L9958TR | PowerSO-20 | Tape And Reel | - | - | Active | EAR99 | MALAYSIA | 3.9 / 1k | Get sample | Check Availability |
| L9958 | PowerSO-20 | Tube | - | - | Active | EAR99 | MALAYSIA | 3.9 / 1k | Get sample | Check Availability |
| L9958SB | PowerSO 16 | Tube | - | - | Active | EAR99 | MALAYSIA | 5.19 / 1k | No availability of distributors reported, please contact our sales office | |
L9958SB
Package
PowerSO 16Packing Type
TubeApproximate Price (US$)* / Qty
5.19 / 1k(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
Evaluation Tools
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| L9958 | Active | PowerSO-20 | Automotive | Ecopack2 | |
| L9958SB | Active | PowerSO 16 | Automotive | Ecopack2 | |
| L9958SBTR | Active | PowerSO 16 | Automotive | Ecopack2 | |
| L9958TR | Active | PowerSO-20 | Automotive | Ecopack2 | |
| L9958XP | Active | PowerSSO 24 | Automotive | Ecopack2 | |
| L9958XPTR | Active | PowerSSO 24 | Automotive | Ecopack2 |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
