ISL6118 Intersil Corporation, ISL6118 Datasheet
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ISL6118
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ISL6118 Summary of contents
Page 1
... TM Data Sheet Dual Power Supply Controller The ISL6118 is a dual channel, fully independent overcurrent (OC) fault protection IC for the +2.5V to +5.5V environment. This device features internal current monitoring, accurate current limiting, integrated power switches and current limited delay to latch-off for system protection. The ISL6118 current sense and limiting circuitry sets the current limit to a nominal 0 ...
Page 2
... FAULT OUT_2, 1 Channel 2, 1 Over Current Fault not Indicator 6, 7 OUT_2, 1 Channel 2,1 Controlled Supply Output 2 ISL6118 CHANNEL 1 LIKE CHANNEL 2 Q-PUMP POR CURRENT AND TEMP. MONITORING, GATE AND OUTPUT CONTROL LOGIC DESCRIPTION VIN provides chip bias voltage. At VIN < 2.5V chip functionality is disabled, FAULT_X latch is cleared and floating and OUT is held low ...
Page 3
... See Tech Brief TB379 fo r details All voltages are relative to GND, unless otherwise specified. Electrical Specifications Supply Voltages = 3.3V, T PARAMETER POWER SWITCH ISL6118 On Resistance at 2.7V ISL6118 On Resistance at 3.3V ISL6118 On Resistance at 5.0V Disabled Output Voltage OUT Rising Rate Slow V Turn-off Rate ...
Page 4
... Current Regulation The ISL6118 has integrated current sensing on the power MOSFETs that allows for rapid control of OC events. Once an OC condition is detected the ISL6118 goes into its current regulation (CR) control mode. The ISL6118 CR level is set to a nominal 0.6A and is regulated to within +/-25% over full temperature, bias voltage range and OC magnitude ...
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... FIGURE 2. SWITCH ON RESISTANCE AT 0.4A 700 o -40 C 650 600 550 500 1.25 1.5 1.75 2.0 2.25 V (V) OUT FIGURE 4. CURRENT REGULATION ISL6118 ON OFF ENABLE FAULT LATCH-OFF SET V OUT OVERCURRENT I OUT 12ms CURRENT REGULATION PERIOD FIGURE 1. OPERATIONAL WAVEFORMS ENABLE VIN = 5V VIN = 3.3V 100 V o OUT C) FIGURE 3. V 3.1 700 650 ...
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... LEVEL 0.6A 0.4 0.2 TIME (200 s/DIV.) FIGURE 7. CR SETTLING TIME vs FAULT CURRENT ENABLE C V VOLTAGE (0.5V/DIV.) TIME (400 s/DIV.) OUT ISL6118 OUT 1 ISL6118 OUT 2 FIGURE 10. SWITCH FAULT INDEPENDENCE FAULT CURRENT (A) V OUT 100 0 FIGURE 9. FAST TURN-OFF vs C ...
Page 7
... Upon proper bias the PPTC, F1, has a nominal 400mA load current passing through it which is the hold current rating for that particular device. Removal of the PPTC is necessary to isolate the ISL6118 as the PPTC load current is common to the ISL6118EVAL1 bias connections. By enabling either or both of the ISL6118H switches by signaling TP3 and/or TP4 high (> ...
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... SW1 R10 D5 Intersil, ISL6118HIB 3.3V Aux Hot Plug Controller YAGEO, 8 5%, 2W, 8W-2-ND YAGEO, 6 5%, 2W, 6W-2-ND 470 , 0805 0.1 F, 0805 100 F, 16V Electrolytic, Radial lead 0805, SMD LEDs Red Raychem, Poly Switch, RXE040 or Equivalent Fairchild, ITF86110DK8T, 7.5A, 30V, 0.025 , Dual N-channel, Logic Level Power MOSFET ...
Page 9
... The ‘H’ version refers to the enable function being asserted upon a high input. Introduction The ISL6118, ISL6119 and ISL6121 are all 2. power supply controllers, each having a different level of current regulation (CR). The ISL6118 and ISL6119 have 2 independent controllers with CR levels of 0 ...
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... For information regarding Intersil Corporation and its products, see web sit ewww.intersil.com Sales Office Headquarters NORTH AMERICA Intersil Corporation 2401 Palm Bay Road Palm Bay, FL 32905 TEL: (321) 724-7000 FAX: (321) 724-7240 10 ISL6118 M8.15 (JEDEC MS-012-AA ISSUE C) 8 LEAD NARROW BODY SMALL OUTLINE PLASTIC PACKAGE SYMBOL ...