L4915 Datasheet | STMicroelectronics

DESCRIPTION This circuit bines both a filter and a voltage regulator in order to provide a high ripple rejection over a wide input voltage range. A supervisor low-pass loop of the element prevents the output transistor from saturation at low input voltage. The non linear behaviour of this control circuitry allows a fast settling of the filter. PIN CONNECTION POWER MINIDIP ORDERING NUMBER : L4915 June1993 1/7 BLOCK DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol Vi Vi IO Ptot Tstg Parameter Peak Input Voltage (300 ms) DC Input Voltage Output Current Power Dissipation Storage and Junction Temperature Value 40 28 Internally Limited Internally Limited - 40 to 150 Unit V V °C THERMAL DATA Symbol Rth j-amb R th j-pins Parameter Thermal Resistance Junction-ambient Thermal Resistance Junction-pins Max. Max. Value 80 20 Unit °C/W °C/W ELECTRICAL CHARACTERISTICS (Tamb = 25o C; Vi = 13.5 V, VO = 8.5V, circuit of Fig. 1, unless otherwise specified) Symbol Vi Vo ∆VI/O ∆ VO ∆ Vo ∆ Vo Vref Iq ∆Iq IAD 2/7 Parameter Input Voltage Output Voltage Controlled Input-output Dropout Voltage Line Regulation Load Regulation Load Regulation (filter mode) Internal Voltage Reference Quiescent Current Quiescent Current Change Adjust Input Current Test Conditions Vi = 6 to 18V, Io = 5 to 150m A Io = 5 to 150m A, Vi = 6 to 10V Vi = 12 to 18V, Io = 10m A Io = 5 to 250m A, ton = 30µs, toff = ≥ 1ms Vi = 8.5V, Io = 5 to 150m A ton = 30µs, toff =≥ 1ms Io = 5 m A Vi = 6 to 18V, Io = 5 to 150m A Min. 4 1.6 1 50 150 2.5 1 0.05 40 Typ. Max. 20 11 2.1 20 100 250 Unit V V V m V m V m V V m A m A n A ELECTRICAL CHARACTERISTICS (continued) (Tamb = 25o C; Vi = 13.5 V, VO = 8.5V, circuit of Fig. 1, unless otherwise specified) Symbol ∆ VO ∆T SVR Parameter Output Voltage Drift Supply Voltage Rejection Test Conditions Io = 10m A Viac = 1VRMS, f = 100Hz, Io = 150m A Regulator Filter Mode 250 Io = 150m A Regulator Filter Mode Min. Typ. 1.2 71 35(- ) 300 300 500(- ) 145 Max. Unit m V/°C d B ISC Ton Tj Short Circuit...