el7515 Intersil Corporation, el7515 Datasheet
el7515
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el7515 Summary of contents
Page 1
... Lithium Ion NiMH cells cells of alkaline battery. The EL7515 is available MSOP package, with maximum height of 1.1mm. With proper external components, the whole converter takes less than 0.25in PCB space. This device is specified for operation over the full -40° ...
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... Typical Application V IN (1.8V TO 9V) 2 EL7515 10µ 10µF 1 PGND SGND VDD 100kΩ 20nF 5 LBI LBO 6 V OUT (12V 630mA) 1.4kΩ 22µ 0.1µ 82kΩ 10kΩ ...
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... VDD Control circuit positive supply 10 LX Inductor drive pin; connected to the drain of internal N-Channel power MOSFET 3 EL7515 Thermal Information = +25°C) Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C Operating Temperature . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C Operating Junction Temperature +135°C Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below http://www ...
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... Block Diagram FB MAX_DUTY R T REFERENCE 100kΩ GENERATOR V REF V RAMP EN LBO LBI - + 220mV 4 EL7515 V OUT 82kΩ 1.4kΩ 10kΩ 4.7nF 0.1µ THERMAL SHUT-DOWN PWM COMPARATOR START-UP OSCILLATOR SGND 10µA 22µF 10µF LX PWM 0.2Ω LOGIC 12µ LOUT 80mΩ 7.2kΩ ...
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... I (mA) OUT FIGURE 3. EFFICIENCY vs I 1400 1200 1000 800 600 400 200 (V) DD FIGURE EL7515 250 300 350 OUT 400 500 600 OUT R = 51.1kΩ 71.5kΩ 100kΩ 200kΩ ...
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... 0.5ms/DIV FIGURE 9. POWER-UP Applications Information The EL7515 is a step-up regulator, operated at fixed frequency pulse-width-modulation (PWM) control. The input voltage is 1.8V to 13.2V and output voltage is 4.5V to 17V. The switching frequency (up to 1.2MHz) is decided by the resistor connected to R pin. T Start-Up After V reaches a threshold of about 1 ...
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... Theoretically, the input capacitor has a ripple current of ΔI Due to high-frequency noise in the circuit, the input current ripple may exceed the theoretical value. A larger capacitor will reduce the ripple further. 7 EL7515 The inductor has peak and average current decided by Equations 4 and ...
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... DD S 10Ω to 51Ω with C = 0.1µF. 4 Thermal Performance The EL7515 uses a fused-lead package, which has a reduced θ of +100°C four-layer board and JA +115°C two-layer board. Maximizing copper around the ground pins will improve the thermal performance. This chip also has internal thermal shut-down set at around +135° ...
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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 www.intersil.com 9 EL7515 MDP0043 A MINI SO PACKAGE FAMILY ...