ISL97634IRT18Z-T Intersil, ISL97634IRT18Z-T Datasheet
ISL97634IRT18Z-T
Specifications of ISL97634IRT18Z-T
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ISL97634IRT18Z-T Summary of contents
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... FB NUMBER (Note) ISL97634IRT14Z-T ISL97634IRT14Z-TK ISL97634IRT18Z-T ISL97634IRT18Z-TK ISL97634IRT26Z-T ISL97634IRT26Z-TK *Please refer to TB347 for details on reel specifications NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate PLUS ANNEAL - e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations ...
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... Storage Temperature . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp = 3V PWM/EN CONDITION PWM/EN = 3V, enabled, not switching PWM/EN = 0V, disabled ILX = 100mA VLX = 28V VFB = 95mV IDIODE = 100mA +25°C A ISL97634IRT14Z ISL97634IRT18Z ISL97634IRT26Z θ θ (°C/ MIN TYP MAX 2.4 5.5 0.8 1.5 ...
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Block Diagram VIN (2.4V TO 5.5V) CIN VIN 1.4MHZ OSCILLATOR AND RAMP GENERATOR PWM COMPARATOR GM AMP GM AMP COMPENSATION COMPENSATION Pin Description PIN NUMBER PIN NAME 1 GND Ground Pin. Connect to local ground. 2 VIN Input Supply Pin. ...
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Typical Performance Curves LEDs, 10µ LEDs, 22µ LEDs, 22µ PWM DUTY CYCLE (%) FIGURE 1. EFFICIENCY vs PWM DUTY CYCLE 20.08 20.04 20.00 19.96 ...
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V OUT LX PWM/EN ILED FIGURE 7. PWM DIMMING AT 1kHz ZOOM IN Detailed Description The ISL97634 uses a constant frequency, current mode control scheme to provide excellent line and load regulation. There are three OVP models ...
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... The ISL97634 comes with overvoltage protection. The OVP trip points are at 14V, 18V and 26V for ISL97634IRT14Z, ISL97634IRT18Z and ISL97634IRT26Z respectively. The maximum numbers of LEDs and OVP threshold are shown in Table 1. When the device reaches the OVP, the LX stops switching, disabling the boost circuit until V below the OVP threshold ...
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... TABLE 1. MAX NO. OF PART NO. OVP LEDS ISL97634IRT14Z 14V ISL97634IRT18Z 18V ISL97634IRT26Z 26V Shutdown When PWM/EN is taken low the ISL97634 enters into the power-down mode where the supply current is reduced to less than 1µA. The device resumes normal when the PWM/EN goes high ...
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These equations are valid for values of R both R >>RSET and R >>RSET The analog dimming circuit can be tailored to a desired relative brightness for different V Dim Equation • ] ...
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2. 2.2µ 1µF M1 FQT13N06L VIN VOUT LX C2 0.1µF ISL97634 FBSW FB PWM/EN GND R1 FIGURE 17. CONCEPTUAL 8 LEDs HIGH VOLTAGE DRIVER SEPIC Operation For applications where the output ...
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... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. 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 ...