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ISL97636IRZ Datasheet(PDF) 9 Page - Intersil Corporation |
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ISL97636IRZ Datasheet(HTML) 9 Page - Intersil Corporation |
9 / 18 page 9 FN6570.0 May 9, 2008 Pinout ISL97636 (24 LD QFN) TOP VIEW GND GND FPWM VLEVEL GND PWMI/EN PGND PGND OVP IIN0 IIN1 IIN2 1 2 3 4 5 6 18 17 16 15 14 13 24 23 22 21 20 19 78 9 10 11 12 Pin Descriptions (I = Input, O = Output, S = Supply) PIN NAME TYPE DESCRIPTION 1, 2 GND S Analog GND 3 FPWM - Not used. Leave floating and connect anything will have no effect on operation. 4 VLEVEL - Not used. Leave floating and connect anything will have no effect on operation. 5 GND S Analog GND and LED power return 6 EN/PWMI I Dual Functions: Enable Pin and PWM brightness control pin. DO NOT leave EN/PWMI floating. The device needs 40µs for initial power-up Enable, then this pin can be applied with a PWM signal with off time no longer than 28ms. 7 IIN7 I Input 7 to current source, FB, and monitoring 8 IIN6 I Input 6 to current source, FB, and monitoring 9 IIN5 I Input 5 to current source, FB, and monitoring 10 IIN4 I Input 4 to current source, FB, and monitoring 11 RSET I Resistor connection for setting LED current, (see Equation 1 for calculating the ILEDpeak) 12 IIN3 I Input 3 to current source, FB, and monitoring 13 IIN2 I Input 2 to current source, FB, and monitoring 14 IIN1 I Input 1 to current source, FB, and monitoring 15 IIN0 I Input 0 to current source, FB, and monitoring 16 OVP I Overvoltage protection input 17 PGND S Power ground (LX Power return) 18 PGND S Power ground (LX Power return) 19 LX I Input to boost switch 20 LX I Input to boost switch 21 FAULT O Fault disconnect switch 22 COMP O Boost compensation pin 23 VIN S Input voltage for the device and LED power 24 VDC S De-couple capacitor for internally generated supply rail. If 2.7V < VBL+ < 5.5V, apply VDC directly with a supply voltage of 2.7V to 5.5V ISL97636 |
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