GS-R4840NV Datasheet | STMicroelectronics

Features Digital input for voltage selection Short-circuit protection Overvoltage protection Thermal protection Softstart Fault signal indication output High efficiency (>80%) DESCRIPTION The GS-R4840NV is a negative input, negative output switching voltage regulator that provides up to 36W output power without input-output isolation. The output voltage is programmable by input logic signals that allow 64 steps (6 bit) of regulated output, from -22 to -60V. ELECTRICAL CHARACTERISTICS (Tamb = 25°C unless otherwise specified) Symbol Vi Vir Vo Vor Voov Io Iol Iosc fs η Rth Tcop T stg Parameter Input Voltage Input Ripple Voltage Output Voltage Output Ripple Voltage Output Overvoltage Protection Output Current Current Limit Output Average Short Circ. Current Switching Frequency Efficiency Thermal Resistance Operating Case Temperature Range Storage Temperature Range Vi = -48V Vo = -48V Case to Ambient 0 -20 Io = -600m A 80 Test Conditions Vo = -22 to -60V Io = -10 to -600m A Vi = -40 to -60V Vi = -40 to -60V Vo = -22 to -60V Io = -600m A Vi = -40 to -60V Io = -10 to -600m A Vi = -40 to -60V Vo = -22 to -60V Vi = -40 to -60V Overload Condition Vi = -40 to -60V 100 82 4 +85 +105 Vo+5% -10 Io = -600m A Io = -10 to -600m A -22 4 Min -40 Typ -48 Max -60 20 -60 10 Vo+10% -600 -900 -80 Unit V m Vpp V m Vpp V m A m A m A k Hz % °C/W °C °C 1/3 December 1993 CONNECTION DIAGRAM AND MECHANICAL DATA Package F. Dimensions in mm. (inches) PIN DESCRIPTION Pin 1 2 Function -Vin Inhibit/ Enable 3 4 5 6 7 8 9 10 11 12 13 14 GND IN +5V IN DB0 DB1 DB2 DB3 DB4 DB5 CS WR -Vout FAULT Negative input voltage. Remote Inhibit/Enable logically patible with CMOS or open collector TTL. The converter is OFF (Inhibit) when this pin is unconnected or the voltage applied is in the range of 2 to 5V (referred to GND). The converter is ON (Enable) for a control voltage in the range of 0 to 0.8V maximum. Return for input voltage source and +5V logic supply voltage. Internally connected to pin 15. +5V...