L9974-TR vs L9973-TR Comparison

Detailed side-by-side comparison of L9974-TR by STMicroelectronics and L9973-TR by STMicroelectronics. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.

Specification Comparison

Parameter L9974-TR L9973-TR
Brand STMicroelectronics STMicroelectronics
Category Motor Drivers Motor Drivers
Lifecycle Status Active Active
Supply Voltage Range 5.5 V to 36 V 5.5 V to 36 V
Output Current per Channel 1.2 A (continuous) 1.2 A (continuous)
Number of Half-Bridges 4 4
On-Resistance (typical) 0.5 ohm —
Quiescent Current (standby) 10 uA —
SPI Interface Yes, up to 5 MHz —
Protection Features Overcurrent, overtemperature, short-circuit Overcurrent, Overtemperature, Short-Circuit
Operating Temperature Range -40C to +150C -40C to +125C
Package PowerSO-20 PowerSO-20
Mounting Type Surface Mount Surface Mount
Thermal Resistance, Junction-to-Ambient 35 C/W 35 C/W
AEC-Q100 Qualification Yes —
RoHS Status Compliant Compliant
Output Type Half-bridge —
Control Interface SPI —
Quiescent Current (Standby) — 50 uA
Interface — SPI
Output On-Resistance (typical) — 0.5 ohm
Switching Frequency (max) — 20 kHz
Logic Input Voltage — 3.3 V / 5 V compatible
AEC-Q100 Qualified — Yes

Datasheets & Resources

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