전자부품 데이터시트 검색엔진 |
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ISL6117 데이터시트(PDF) 10 Page - Intersil Corporation |
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ISL6117 데이터시트(HTML) 10 Page - Intersil Corporation |
10 / 12 page 10 February 6, 2007 ISL6115EVAL1 Board The ISL6115EVAL1 is configured as a +12V high side switch controller with the CR level set at ~1.5A. (See Figure 21 for ISL6115EVAL1 schematic and Table 4 for BOM). Bias and load connection points are provided along with test points for each IC pin. With the chip to be biased from the +12V bus being switched, through B2, GND B5, the load connected between B3 and B4 and with jumper J1 installed the ISL6115 can be evaluated. PWRON pin pulls high enabling the ISL6115 if not driven low. With R2 = 750 Ω the CR Vth is set to 15mV and with the 10m Ω sense resistor the ISL6115EVAL1 has a nominal CR level of 1.5A. The 0.047 μF delay time to latch-off capacitors results in a nominal 4.4ms before latch-off of outputs after an OC event. Also included with the ISL6115EVAL1 board are one each of the ISL6116, ISL6117 and ISL6120 for evaluation. ISL6116EVAL1 Board The ISL6116EVAL1 is default configured as a negative voltage low side switch controller with a ~2.4A CR level. (See Figure 22 for ISL6116EVAL1 schematic and Table 4 for BOM and component description). This basic configuration is capable of controlling both larger positive or negative potential voltages with minimal changes. Bias and load connection points are provided in addition to test points, TP1-8 for each IC pin. The terminals, J1 and J4 are for the bus voltage and return, respectively, with the more negative potential being connected to J4. With the load between terminals J2 and J3 the board is now configured for evaluation. The device is enabled through LOGIN, TP9 with a TTL signal. ISL6116EVAL1 includes a level shifting circuit with an opto-coupling device for the PWRON input so that standard TTL logic can be translated to the -V reference for chip control. When controlling a positive voltage, PWRON can be accessed at TP8. The ISL6116EVAL1 is provided with a high voltage linear regulator for convenience to provide chip bias from ±24V to ±350V. This can be removed and replaced with the zener & resistor bias scheme as discussed earlier. High voltage regulators and power discrete devices are no longer available from Intersil but can be purchased from other semiconductor manufacturers. Reconfiguring the ISL6116EVAL1 board for a higher CR level can be done by changing the RSENSE and RISET resistor values as the provided FET is 75A rated. If evaluation at >60V, an alternate FET must be chosen with an adequate BVDSS. FIGURE 19. +350V LOW SIDE SWITCHING CGATE = 100pF FIGURE 20. +350V LOW SIDE SWITCHING CGATE = 1000pF Typical Performance Curves (Continued) 2ms/DIV +350V 0V IOUT 1A/DIV VDRAIN 50V/DIV VGATE 5V/DIV PWRON 5V/DIV 2ms/DIV +350V 0V IOUT 1A/DIV PWRON 5V/DIV VGATE 5V/DIV. VDRAIN 50V/DIV ISL6115, ISL6116, ISL6117, ISL6120 |
유사한 부품 번호 - ISL6117 |
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유사한 설명 - ISL6117 |
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