Datasheet LT3094 (Analog Devices) - 5

LT3094
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. PARAMETER CONDITIONS MIN TYP MAX UNITS
Output Noise Spectral ILOAD = 500mA, Frequency = 10Hz, COUT = 10µF, CSET = 0.47µF, VOUT = –3.3V 700 nV/√Hz Density (Notes 9, 12) ILOAD = 500mA, Frequency = 10Hz, COUT = 10µF, CSET = 4.7µF, –19.5V ≤ VOUT ≤ –1.5V 70 nV/√Hz ILOAD = 500mA, Frequency = 10kHz, COUT = 10µF, CSET = 0.47µF, –19.5V ≤ VOUT ≤ –1.5V 2.2 nV/√Hz ILOAD = 500mA, Frequency = 10kHz, COUT = 10µF, CSET = 0.47µF, –1.5V ≤ VOUT ≤ 0V 6 nV/√Hz Output RMS Noise ILOAD = 500mA, BW = 10Hz to 100kHz, COUT = 10µF, CSET = 0.47µF, VOUT = –3.3V 3 µVRMS (Notes 9, 12) ILOAD = 500mA, BW = 10Hz to 100kHz, COUT = 10µF, CSET = 4.7µF, –19.5V ≤ VOUT ≤ –1.5V 0.8 µVRMS ILOAD = 500mA, BW = 10Hz to 100kHz, COUT = 10µF, CSET = 4.7µF, –1.5V ≤ VOUT ≤ 0V 1.8 µVRMS Reference Current RMS BW = 10Hz to 100kHz 8 nARMS Output Noise (Notes 9, 12) Ripple Rejection VRIPPLE = 500mVP-P, fRIPPLE = 120Hz, ILOAD = 500mA, COUT = 10µF, CSET = 4.7µF 108 dB –18V ≤ VOUT ≤ –1.5V VRIPPLE = 500mVP-P, fRIPPLE = 10kHz, ILOAD = 500mA, COUT = 10µF, CSET = 0.47µF 94 dB VIN – VOUT = 2V (Avg) VRIPPLE = 500mVP-P, fRIPPLE = 100kHz, ILOAD = 500mA, COUT = 10µF, CSET = 0.47µF 75 dB (Notes 9, 12) VRIPPLE = 500mVP-P, fRIPPLE = 1MHz, ILOAD = 500mA, COUT = 10µF, CSET = 0.47µF 74 dB VRIPPLE = 500mVP-P, fRIPPLE = 10MHz, ILOAD = 500mA, COUT = 10µF, CSET = 0.47µF 28 dB Ripple Rejection VRIPPLE = 500mVP-P, fRIPPLE = 120Hz, ILOAD = 500mA, COUT = 10µF, CSET = 4.7µF 108 dB –1.5V ≤ VOUT ≤ 0V VRIPPLE = 500mVP-P, fRIPPLE = 10kHz, ILOAD = 500mA, COUT = 10µF, CSET = 0.47µF 90 dB VIN – VOUT = 2V (Avg) VRIPPLE = 500mVP-P, fRIPPLE = 100kHz, ILOAD = 500mA, COUT = 10µF, CSET = 0.47µF 72 dB (Notes 9, 12) VRIPPLE = 500mVP-P, fRIPPLE = 1MHz, ILOAD = 500mA, COUT = 10µF, CSET = 0.47µF 78 dB VRIPPLE = 500mVP-P, fRIPPLE = 10MHz, ILOAD = 500mA, COUT = 10µF, CSET = 0.47µF 30 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 550 750 mA (Note 14) VIN = –12V, VOUT = 0V 425 mA VIN = –20V, VOUT = 0V l 40 85 160 mA Programmable Current Programming Scale Factor: –20V < VIN < –2.3V (Note 13) 3.75 A • kΩ Limit VIN = –2.3V, VOUT = 0V, RILIM = 7.5kΩ l 450 500 560 mA VIN = –2.3V, VOUT = 0V, RILIM = 37.5kΩ l 90 105 120 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 Maximum Output VIN – VOUT = –2V, VOUT ≤ –1.5V l –1.35 –1.2 V Voltage Swing 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) Rev. B 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 Applications Package Description Revision History Typical Application Related Parts