Datasheet LT3093 (Analog Devices) - 5

LT3093
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 3) PARAMETER CONDITIONS MIN TYP MAX UNITS
Reference Current BW = 10Hz to 100kHz 8 nARMS RMS Output Noise (Notes 9, 12) Ripple Rejection VRIPPLE = 500mVP-P, fRIPPLE = 120Hz, ILOAD = –200mA, COUT = 4.7µF, CSET = 4.7µF 108 dB –18V ≤ VOUT ≤ –1.5V VRIPPLE = 500mVP-P, fRIPPLE = 10kHz, ILOAD = –200mA, COUT = 4.7µF, CSET = 0.47µF 94 dB VIN – VOUT = 2V (Avg) VRIPPLE = 500mVP-P, fRIPPLE = 100kHz, ILOAD = –200mA, COUT = 4.7µF, CSET = 0.47µF 75 dB (Notes 9, 12) VRIPPLE = 500mVP-P, fRIPPLE = 1MHz, ILOAD = –200mA, COUT = 4.7µF, CSET = 0.47µF 74 dB VRIPPLE = 500mVP-P, fRIPPLE = 10MHz, ILOAD = –200mA, COUT = 4.7µF, CSET = 0.47µF 45 dB Ripple Rejection VRIPPLE = 500mVP-P, fRIPPLE = 120Hz, ILOAD = –200mA, COUT = 4.7µF, CSET = 4.7µF 108 dB –1.5V ≤ VOUT ≤ 0V VRIPPLE = 500mVP-P, fRIPPLE = 10kHz, ILOAD = –200mA, COUT = 4.7µF, CSET = 0.47µF 90 dB VIN – VOUT = 2V (Avg) VRIPPLE = 500mVP-P, fRIPPLE = 100kHz, ILOAD = –200mA, COUT = 4.7µF, CSET = 0.47µF 72 dB (Notes 9, 12) VRIPPLE = 500mVP-P, fRIPPLE = 1MHz, ILOAD = –200mA, COUT = 4.7µF, CSET = 0.47µF 78 dB VRIPPLE = 500mVP-P, fRIPPLE = 10MHz, ILOAD = –200mA, COUT = 4.7µF, CSET = 0.47µF 45 dB EN/UV Pin Threshold Positive EN/UV Trip Point Rising (Turn-On), VIN = –2.3V l 1.20 1.26 1.35 V Negative EN/UV Trip Point Rising (Turn-On), VIN = –2.3V l –1.33 –1.26 –1.20 V EN/UV Pin Hysteresis Positive EN/UV Trip Point Hysteresis, VIN = –2.3V 200 mV Negative EN/UV Trip Point Hysteresis, VIN = –2.3V 215 mV EN/UV Pin Current VEN/UV = 0V, VIN = –20V l –1 1 µA VEN/UV = –1.5V, VIN = –20V –0.5 µA VEN/UV = –20V, VIN = –20V l –35 –18.5 µA VEN/UV = 1.5V, VIN = –20V 8 µA VEN/UV = 20V, VIN = 0V l 25 45 µA Quiescent Current in VIN = –6V, VPG = Open 3 8 µA Shutdown (VEN/UV = 0V) l 10 µA Internal Current Limit VIN = –2.3V, VOUT = 0V l 220 400 mA (Note 14) VIN = –12V, VOUT = 0V 240 mA VIN = –20V, VOUT = 0V l 20 50 80 mA Programmable Programming Scale Factor: –20V < VIN < –2.3V (Note 13) 1.95 A • kΩ Current Limit VIN = –2.3V, VOUT = 0V, RILIM = 7.5kΩ l 260 mA VIN = –2.3V, VOUT = 0V, RILIM = 37.5kΩ l 55 mA PGFB Trip Point PGFB Trip Point Rising l 288 300 312 mV PGFB Hysteresis PGFB Trip Point Hysteresis 7 mV PGFB Pin Current VIN = –2.3V, VPGFB = –300mV 30 100 nA PG Output Low Voltage IPG = 100µA l 17 50 mV PG Leakage Current VPG = 20V l 1 µA VIOC Amplifier Gain –20V ≤ VIN ≤ –2.3V, VOUT ≤ –1.5V 1 V/V VIOC Sink Current VIN – VOUT = –2V, VVIOC = –1V l 100 µA VIOC Voltage for Low VIN = –2.3V, VOUT > –1.5V –0.8 V Output Voltages (Note 15) Minimum Load Current VOUT > –1.5V l 10 µA (Note 16) Thermal Shutdown TJ Rising 167 °C Hysteresis 8 °C Start-Up Time RSET = 49.9k, VOUT(NOM) = –5V, ILOAD = –200mA, CSET = 0.47µF, VIN = –6V, VPGFB = –6V 55 ms RSET = 49.9k, VOUT(NOM) = –5V, ILOAD = –200mA, CSET = 4.7µF, VIN = –6V, VPGFB = –6V 550 ms RSET = 49.9k, VOUT(NOM) = –5V, ILOAD = –200mA, CSET = 4.7µF, VIN = –6V, RPG1 = 50kΩ, 10 ms RPG2 = 700kΩ (with Fast Start-Up to 90% of VOUT) Thermal Regulation 10ms Pulse –0.01 %/W Rev. 0 For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Application Package Description Typical Application Related Parts