MC34129 Datasheet PDF

Motorola MC34129

The MC34129/MC33129 are high performance current mode switching regulators specifically designed for use in low power digital telephone applications. These integrated circuits feature a unique internal fault timer that provides automatic restart for overload recovery. For enhanced system efficiency, a start/run comparator is included to implement bootstrapped operation of VCC.

Part No.	MC34129
Datasheet	MC34129 Download
Manufacturer	Motorola
Description	High Performance Current Mode Controller
Buy	Stock & Price

MAXIMUM RATINGS

Rating VCC Zener Current Start/Run Output Zener Current Analog Inputs (Pins 3, 5, 9, 10, 11, 12) Sync Input Voltage Drive Output Current, Source or Sink Current, Reference Outputs (Pins 6, 8) Power Dissipation and Thermal Characteristics D Suffix, Plastic Package Case 751A Maximum Power Dissipation @ TA = 70°C Thermal Resistance, Junction–to–Air P Suffix, Plastic Package Case 646 Maximum Power Dissipation @ TA = 70°C Thermal Resistance, Junction–to–Air Operating Junction Temperature Operating Ambient Temperature MC34129 MC33129 Storage Temperature Range Symbol IZ(VCC) IZ(Start/Run) – Vsync IDRV Iref Value 50 50 –0.3 to 5.5 –0.3 to VCC 1.0 20 Unit mA mA V V A mA PD RθJA PD RθJA TJ TA 552 145 800 100 +150 0 to +70 –40 to +85 mW °C/W mW °C/W °C °C Tstg –65 to +150 °C

ELECTRICAL CHARACTERISTICS

(VCC = 10 V, TA = 25°C [Note 1], unless otherwise noted.) Characteristics REFERENCE SECTIONS Reference Output Voltage, TA = 25°C 1.25 V Ref., IL = 0 mA 2.50 V Ref., IL = 1.0 mA Refer...