ISL6121 Intersil Corporation, ISL6121 Datasheet
ISL6121
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ISL6121 Summary of contents
Page 1
... Under Voltage Lockout • Disabled Output Internally Pulled Low • Controlled Turn On/Off Ramp Times • Fault Output Signal • Logic Level Enable High Inputs (ISL6121H) or Enable Low Inputs (ISL6121L) • Logic Level Compatible Enable Input and Fault Output Applications • ...
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... Enable / Enable Not Input ENABLE 5 FAULT Over Current Fault Indicator Overcurrent fault indicator. FAULT is disabled for 12ms after turn-on. This output is pulled VOUT Controlled Supply Output 2 ISL6121 Q-PUMP POR CURRENT AND TEMP. MONITORING, GATE AND OUTPUT CONTROL LOGIC LOGIC DESCRIPTION VIN provides chip bias voltage. At VIN < ...
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... See Tech Brief TB379 fo r details. JA Electrical Specifications V SUPPLY PARAMETER POWER SWITCH ISL6121 On Resistance at 2.7V r ISL6121 On Resistance at 3.3V r ISL6121 On Resistance at 5.0V r Disabled Output Voltage V Output Voltage Rising Rate Slow VOUT Turn-off Rate t_svout_offt Fast VOUT Turn-off Rate t_fvout_offt CURRENT CONTROL Current Limit, VIN = 5V ...
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... MOSFET that allows for rapid control of OC events. Once detected the ISL6121 goes into its Current Regulation (CR) control mode. The ISL6121 CR level is set to a nominal 2A. This current regulation is 20% over the full operating temperature and voltage bias range. See Figures 5 and 6 for illustrative curves ...
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... L VOUT (1V/DIV.) FIGURE 4. VOUT SOFT START vs CLOAD 2400 o -40 C 2200 2000 1800 1600 1.3 1.5 2.0 2.5 3.0 VOUT (V) FIGURE 6. CURRENT REGULATION vs VOUT (VIN = 5.0V) 5 ISL6121 75 RESET BY 70 ENABLE 65 CURRENT REGULATION SETTLING 60 TIME (1.4ms CURRENT 40 LIMIT 35 2400 VOUT 2200 2000 1800 1600 TIME (200 s/DIV.) FIGURE 5 ...
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... FAULT CURRENT (A) FIGURE 8. CR SETTLING TIME vs FAULT CURRENT 0 VOUT (1V/ DIV.) FIGURE 10. FAST TURN-OFF vs C ENABLE FAULT VOUT IOUT FIGURE 12. ISL6121 TURN-ON INTO A 6ms MOMENTARY OC 6 ISL6121 (Continued) VOUT VOUT (1V/DIV.) =100 F L VOUT TIME (400 s /DIV.) ...
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... IC is also loaded with a nominal 1.5A current. Provided test points enable the evaluation of voltage loss across the PPTC (TP9 - TP10) and likewise across the ISL6121 enabled switch (TP9 - TP6). Expect to see 10% - 30% greater voltage loss across the PPTC than the ISL6121. ...
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... PPTC OC RESPONSE TIME ISL6121 VOUT VOUT (1V/DIV.) FIGURE 16. ISL6121 vs PPTC WITH EXTENDED 1 OUT VIN 2 VIN OUT ISL6121H C4 3 VIN OUT R10 4 EN FAULT_OUT R11 FIGURE 17. ISL6121EVAL1 SCHEMATIC AND PHOTOGRAPH 8 ISL6121 PPTC VOUT TIME (4s/DIV.) LOAD Q1A ...
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... TABLE 2. ISL6121EVAL1 BOARD COMPONENT LISTI NG COMPONENT DESIGNATOR COMPONENT FUNCTION DUT1 ISL6121H Load Resistors R5-R7 LED Current Limiting Resistor C1 Chip Decoupling Capacitor Load Capacitor Indicating LEDs F1 1.85A Hold Current Poly-Fuse C4 Bulk Filter Capacitor Q1 Over Current Switch Gate Series Resistors ...
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... 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 11 ISL6121 M8.15 (JEDEC MS-012-AA ISSUE C) 8 LEAD NARROW BODY SMALL OUTLINE PLASTIC PACKAGE SYMBOL ...