Product overview
Description
The L9524C is a control IC for up to six glow plugs of diesel engines. The glow plugs are switched by up to four external PWM-controlled N-channel Power MOSFETs or a single relay in high-side configuration.
Supply voltage, battery voltage, junction temperature, switches, currents through the glow plugs, and charge pump voltage are monitored.
A two-wire interface is used to communicate with the diesel engine management system.
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All features
- Active clamping during load dump
- Charge pump voltage monitoring with shutdown
- Monitoring of currents through the glow plugs with shutdown at overcurrent (adjustable threshold)
- Junction temperature monitoring with shutdown
- Quad gate driver for external N-channel Power MOSFETs in high-side configuration:\t\t
Gates driven by PWM output signal\t\t Adjustable gate charge/discharge currents\t\t Limited gate-to-source voltages\t\t Negative clamping for inductive loads\t\t Advanced run-off control\t\t Regulation of the power through the glow plugs\t\t - Battery-voltage-compatible two-wire interface
- Control output for external relay driver
- Battery voltage monitoring with shutdown
- Monitoring of external switches
- Supply voltage monitoring with shutdown
Circuit Diagram
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STMicroelectronics - L9524C
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| L9524C | Active | SO-24 | Automotive | Ecopack1 | |
| L9524C-TR | Active | SO-24 | Automotive | Ecopack1 |
(**) 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.
Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||||
| L9524C-TR | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
| L9524C | | | distributors No availability of distributors reported, please contact our sales office | |||||||||||
L9524C-TR Active
L9524C Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors