L6599DTR vs NCP1399APDR2G Comparison

Detailed side-by-side comparison of L6599DTR by STMicroelectronics and NCP1399APDR2G by onsemi. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.

Specification Comparison

Parameter L6599DTR NCP1399APDR2G
Brand STMicroelectronics onsemi
Category Voltage Regulators DC-DC Converters
Lifecycle Status Active Active
Stock Status In Stock In Stock
Unit Price (USD) $1.55 $0.99
Topology Resonant half-bridge (LLC, series resonant) Half-Bridge Resonant (LLC)
Duty Cycle 50% complementary, 180° out-of-phase —
Maximum Operating Frequency 500 kHz —
VCC Supply Voltage 8.85 V to 16 V —
High-Side Driver Rail 600 V (bootstrap compatible) —
High-Side Gate Driver Integrated with bootstrap diode —
Output Current (per driver) 800 mA (max, per datasheet) —
Oscillator Type Voltage-controlled, variable frequency —
Overcurrent Protection Two-level (frequency shift + latched shutdown) Yes
Disable Input Latched disable —
PFC Interface Yes (synchronization/output) Yes, dedicated output
Brown-out Protection Yes (LINE pin) —
Soft-Start Programmable via soft-start pin —
Operating Temperature -40 °C to +150 °C —
Package SO-16 (narrow body) 16-SOIC (Pb-free)
Mounting Type Surface Mount Surface Mount
Lead Free / RoHS Lead Free, RoHS Compliant —
MSL Level [DATA_NEEDED: MSL rating] 1
Control Mode — Current Mode
Switching Frequency Range — 20 kHz to 750 kHz
Integrated Gate Drivers — 2 x 600 V half-bridge
Brown-Out Protection — Yes (built-in)
Overtemperature Protection — Yes
Dead-Time Control — Adaptive, auto-adjusting
Light-Load Mode — Skip-mode function
High-Side Driver Type — Bootstrap with internal clamp
Operating Temperature Range — -40 C to +125 C
RoHS Status — Compliant
Lead-Free — Yes

Datasheets & Resources

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