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RH1959MILDICE Datasheet(PDF) 2 Page - Linear Technology |
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RH1959MILDICE Datasheet(HTML) 2 Page - Linear Technology |
2 / 2 page DICE/DWF SPECIFICATION 2 RH1959MILDICE Wafer level testing is performed per the indicated specifications for dice. Considerable differences in performance can often be observed for dice versus packaged units due to the influences of packaging and assembly on certain devices and/or parameters. Please consult factory for more information on dice performance and lot qualifications via lot sampling test procedures. Dice data sheet subject to change. Please consult factory for current revision in production. I.D.No. 66-13-3415 DICE/DWF ELECTRICAL TEST LIMITS For non-specified test conditions, T A = 25°C, TJ = 25°C, VIN = 5V, VC = 1.5V, Boost = VIN + 5V, switch open. (Note 2) Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: Dice are probe tested at 25°C to the limits shown except for high current tests. Dice are tested under low current conditions which assure full load current specifications when assembled in packaging systems approved by Linear Technology. Note 3: Gain is measured with a VC swing equal to 200mV above the switching threshold level to 200mV below the upper clamp level. Note 4: Minimum input voltage is not measured directly, but is guaranteed by other tests. It is defined as the voltage where internal bias lines are still regulated so that the reference voltage and oscillator frequency remain constant. Actual minimum input voltage to maintain a regulated output will depend on output voltage and load current. Note 5: This is the minimum voltage across the boost capacitor needed to guarantee full saturation of the internal power switch. Note 6: Boost current is the current flowing into the boost pin with the pin held 5V above input voltage. It flows only during switch on time. Note 7: Input supply current is the bias current drawn by the input pin with switching disabled. Note 8: Switch on resistance is calculated by dividing VIN to VSW voltage by the forced current (4.5A). Note 9: This parameter is not measured directly, but is guaranteed by design. LinearTechnology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408)432-1900 ● FAX: (408) 434-0507 ● www.linear.com LINEAR TECHNOLOGY CORPORATION 2014 LT 0814 • PRINTED IN USA PARAMETER CONDITIONS MIN MAX UNITS Feedback Voltage (Adjustable) All Conditions 1.19 1.23 V Reference Voltage Line Regulation 4.3V ≤ VIN ≤15V –0.03 0.03 %/V Feedback Input Bias Current –0.5 0.5 µA Error Amplifier Voltage Gain (Note 3) 200 Error Amplifier Transconductance (Note 9) DI (VC) = ±10mA 1500 2700 mMho Error Amplifier Source Current VFB = 1.05V 140 320 mA Error Amplifier Sink Current VFB = 1.35V VFB = 1.35V 140 320 mA Switch Current Limit (Note 9) VC Open, VFB = 1.05V, DC ≤ 50% 4.5 8.5 A Switch On Resistance (Notes 8, 9) ISW = 4.5A 0.1 Ω Maximum Switch Duty Cycle VFB = 1.05V VFB = 1.05V 90 % Switch Frequency VC Set to Give 50% Duty Cycle 460 540 kHz Switch Frequency Line Regulation 4.3V ≤ VIN ≤ 15V –0.15 0.15 %/V Frequency Shifting Threshold on FB Pin Df = 10kHz 0.5 1 V Minimum Input Voltage (Note 4) 4.3 V Minimum Boost Voltage (Notes 5, 9) ISW ≤ 4.5A 3 V Boost Current (Notes 6, 9) ISW = 1A ISW = 4.5A 35 140 mA mA Input Supply Current (Note 7) 5.4 mA Shutdown Supply Current VSHDN = 0V, VSW = 0V, VC Open 50 µA Lockout Threshold VC Open, VFB = 1.05V, DC ≤ 50% 2.3 2.46 V Shutdown Thresholds VC Open Device Shutting Down Device Starting Up 0.13 0.25 0.6 0.7 V V Synchronization Threshold 2.2 V Synchronizing Range 580 1000 kHz |
Similar Part No. - RH1959MILDICE_15 |
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Similar Description - RH1959MILDICE_15 |
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