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MP6605D 4.5-60V, 1.5A Parallel-Interface Low-Side MOSFET Driver IC QFN-24
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pMPS MP6605D — Parallel-Interface Low-Side MOSFET Driver IC, 4.5-60V input, 1.5 A output, 4 channels, QFN-24./p
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MP6605D 4.5-60V, 1.5A Parallel-Interface Low-Side MOSFET Driver IC QFN-24
The MPS MP6605D is a Parallel-Interface Low-Side MOSFET Driver IC. It operates from a 4.5 V to 60 V input and is rated for 1.5 A. It is supplied in a QFN-24 package.
The MP6605D is a 4-channel low-side MOSFET (LS-FET) driver IC that integrates four LS-FETs and high-side (HS) clamp diodes to drive inductive loads.
Key Specifications
| Part Number | MP6605D |
| Function | Parallel-Interface Low-Side MOSFET Driver IC |
| Input Voltage | 4.5 V to 60 V |
| Current Rating | 1.5 A |
| Channels | 4 |
| Package | QFN-24 |
| Ordering Codes | MP6605D |
Features
- Wide 4.5V to 60V Input Voltage (VIN) Range
- 60V Maximum Winding Clamp Voltage (VCLAMP)
- Four Low-Side MOSFETs (LS-FETs) and Four High-Side (HS) Clamp Diodes
- 350mΩ MOSFET On Resistance
- 1.5A Maximum Output Current (IOUT) while One LS-FET Is On or 700mA Maximum IOUT while Four LS-FETs Are On
- Over-Current Protection (OCP)
- Under-Voltage Lockout (UVLO) Protection
- Thermal Shutdown
- Fault Indication Output
- Control Power Supply Not Required
Typical Application Circuit
Applications
- Unipolar Stepper Motors
Design Notes
- Set dead time to match the external FET turn-off, not the datasheet typical. Too little risks shoot-through, too much distorts the current waveform at low duty cycle.
- Use a Kelvin connection for the current-sense resistor; shared copper injects switching noise straight into the sense amplifier.
- The thermal pad is the only heat path for most packages — via-stitch it to a ground plane with at least 9 vias.
- PWM frequency trades switching loss against current ripple in the motor inductance; 20 kHz keeps the drive out of the audible band.
- Add a brake or coast path so regeneration during a fast stop does not pump the supply rail.
Common Questions
What input voltage does the MP6605D support?
4.5 V to 60 V. The rated output is 1.5 A.
Which package and ordering codes apply to the MP6605D?
QFN-24; order codes include MP6605D.
What are the defining features of the MP6605D?
Wide 4.5V to 60V Input Voltage (VIN) Range 60V Maximum Winding Clamp Voltage (VCLAMP)
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