ISL97684 Intersil Corporation, ISL97684 Datasheet
ISL97684
Related parts for ISL97684
ISL97684 Summary of contents
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... The ISL97682, ISL97683, ISL97684 offer 8-bit PWM dimming for systems that need frequency tuning flexibility. With the unique adaptive boost switching architecture, the ISL97682, ISL97683, ISL97684 also offer Direct PWM dimming with output, which follows input and achieves linearity as low as 0 ...
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... FET DRIVER PGND PE HIGHEST CH1 VF STRING CH4 DETECT 1 TEMP SENSOR *V >= 9V AND WITH IN GOOD LEDS MATCHING PACKAGE (Pb-free 3x3 TQFN 16 LD 3x3 TQFN 16 LD 3x3 TQFN ISL97684. For more information on MSL please PKG. DWG. # L16.3x3D L16.3x3D L16.3x3D FN7689.0 March 11, 2011 ...
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... Pin Configurations ISL97682 (16 LD TQFN) TOP VIEW 16 15 AGND 1 COMP 2 RSET 3 FSW www.DataSheet4U.com 3 ISL97682, ISL97683, ISL97684 OVP 11 VDC 10 PGND ISL97684 (16 LD TQFN) TOP VIEW AGND 1 COMP 2 3 RSET FSW ISL97683 (16 LD TQFN) TOP VIEW ...
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... NC NC CH4 www.DataSheet4U.com 4 ISL97682, ISL97683, ISL97684 Analog Ground for precision circuits External Compensation Pin Resistor connection for setting LED current, (see Equation 2 for calculating the ILEDpeak) FSW = 0 ~ 0.25 * VDC, Boost Switching Frequency = 600kHz with phase shift and PFM mode enabled. FSW = 0.25 * VDC ~ 0.5 * VDC, Boost Switching Frequency = 600kHz with phase shift and PWM mode enabled ...
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... DS(ON) Eff_peak Peak Efficiency www.DataSheet4U.com D Boost Maximum Duty Cycle MAX 5 ISL97682, ISL97683, ISL97684 Thermal Information Thermal Resistance (Typical TQFN (Notes Thermal Characterization (Typical TQFN (Note 6 Maximum Continuous Junction Temperature . . . . . . . . . . . . . . . . .+125°C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp and θ ...
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... Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization and are not production tested maximum V of 26V, minimum ISL97682, ISL97683, ISL97684 All specifications below are characterized at T DESCRIPTION CONDITION V < 2.4V (F ...
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... ILED = 20mA/CH CONFIGURATION 600kHz IN PWM MODE WITH 600k PWM (%) FIGURE 6. ISL97684 EFFICIENCY FOR 4P10S AT 20mA/CH AT 600kHz IN PWM MODE 1000k PWM 50% 1000k PFM 50 FIGURE 8. PFM vs PFM MODE FOR 4P8S 100 ...
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... V IN FIGURE 11. QUIESCENT CURRENT vs V LEDS CONNECTED V (5V/DIV (0.5A/DIV) IN ILED (20mA/DIV) www.DataSheet4U.com FIGURE 13. LINE REGULATION WITH V FOR 4P10S AT 20mA/C 8 ISL97682, ISL97683, ISL97684 (Continued) CALCULATED 2.4 3.2 4.0 4.8 FIGURE 10. CURRENT LINEARITY vs PWM DIMMING DUTY CYCLE FOR 4P10S AT 20mA/ (V) WITH EN = HIGH, NO FIGURE 12. CHANNEL VOLTAGE vs V ...
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... O ILED (20mA/DIV) FIGURE 15. LOAD REGULATION WITH ILED CHANGE FDROM 100 PWM DIMMING Vout OUT EN FIGURE 17. IN-RUSH AND LED CURRENT 20mA/CH www.DataSheet4U.com 9 ISL97682, ISL97683, ISL97684 (Continued) FIGURE 16 12V AT 20mA/ (0.5A/DIV) IN Iin(0.5A/div) ILED(20mA/div) ILED (20mA/DIV FOR 4P10S FIGURE 18 ...
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... Power Sequence www.DataSheet4U.com There is no specific power sequence requirement for the ISL97682, ISL97683, ISL97684. The EN signal can be tied to V but not the VDC that will prevent the device from powering up. 10 ISL97682, ISL97683, ISL97684 Current Matching and Current Accuracy Each channel of the LED current is regulated by the current source circuit, as shown in Figure 19 ...
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... R SET ( ) 402 I -------------- - = LEDmax R SET DC Current Adjustment Once R is fixed, the LED DC current can be adjusted. SET For example, in the 4-channel ISL97684, if the maximum required LED current ( 20mA, rearranging Equation 3 yields LED(max) Equation 0.02 ⁄ R 402 20.1kΩ SET PWM Control The ISL97682, ISL97683, ISL97684 have high speed 8-bit ...
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... For ISL97682, the two channels are separated by 180°. For ISL97683, the three channels are separated by 90° and not 120°. For ISL97684, the four channels are separated by 90°. If the channels are combined for higher current application, the phase shift function must be disabled by running the part in ...
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... Furthermore, should the boost output of the ISL97682, ISL97683, ISL97684 reach the OVP limit, all channels which are not “good” will immediately be considered as “open circuit”. Detection of an “open circuit” ...
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... OTP not triggered but Circuit but has CHx > 4.4V paralleled Zener www.DataSheet4U.com Channel-to-Channel OTP triggered but CHx < 8 ΔVF too high 4.4V Output LED stack V 9 OUT voltage too high 14 ISL97682, ISL97683, ISL97684 LX O/P SHORT OVP FET LOGIC DRIVER VSC THRM SHDN OTP + VSET - PWM1/OC1/SC1 ...
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... F Applications Low Voltage Operations The ISL97682, ISL97683, ISL97684 VIN pin can be separately biased from the LEDs power input to allow low voltage operation. For systems that have only single supply, VOUT can be tied to the driver VIN pin to allow initial start-up; see Figure 26. The circuit works as follows ...
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... However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see 16 ISL97682, ISL97683, ISL97684 2 < 26.5V ...
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... Package Outline Drawing L16.3x3D 16 LEAD THIN QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 0, 3/10 6 PIN 1 INDEX AREA (4X) 0.15 TOP VIEW (2.80 TYP) ( 1.60) TYPICAL RECOMMENDED LAND PATTERN www.DataSheet4U.com 17 ISL97682, ISL97683, ISL97684 3.00 A 12X 0. 0.75 ±0.05 (12X 0.50) (16X 0.23) (16X 0.60) NOTES 1.50 6 PIN # INDEX AREA 1 1 ...