intersil Manuals (Industrial)

The ISL2110 and ISL2111 are 100V high-frequency half-bridge N-Channel power MOSFET driver ICs. They are based on the popular HIP2100 and HIP2101 half-bridge drivers, but offer several performance improvements. The peak output pull-up/pull-down current has been increased to 3A/4A, which significantly reduces switching power losses and eliminates the need for external totem-pole buffers in many applications. Additionally, the low end of the VDD operational supply range has been extended to 8VDC. The ISL2110 has additional input hysteresis for superior operation in noisy environments, and the inputs of the ISL2111, like those of the ISL2110, can now safely swing to the VDD supply rail.

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The ISL6700 is an 80V/1.25A peak, medium frequency, low cost, half-bridge driver IC. It is available in 8-lead SOIC and 12-lead QFN plastic packages. The low-side and high-side gate drivers are independently controlled and matched to 25ns. This gives the user maximum flexibility in dead-time selection and driver protocol. Undervoltage protection on both the low-side and high-side supplies force the outputs low. Non-latching, level-shift translation is used to control the upper drive circuit. Unlike some competitors, the high-side output returns to its correct state after a momentary undervoltage of the high-side supply.

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ISL6265 is a multi-output controller with integrated MOSFET drivers from Intersil for AMD SVI capable mobile CPUs. The ISL6265 features a single phase controller that powers the Northbridge (VDDNB) portion of the CPU. The remaining two controller channels can be configured for two-phase or individual single-phase outputs. For uniplane CPU applications, the ISL6265 is configured as a two-phase buck converter. This allows the controller to interleave channels to effectively double the output voltage ripple frequency and thereby reduce output voltage ripple amplitude with fewer components, lower component cost, reduced power dissipation, and smaller area. For dual-plane processors, the ISL6265 can be configured as independent single-phase controllers powering VDD0 and VDD1. The heart of the ISL6265 is Intersil’s patented R3 Technology™, the Robust Ripple Regulator modulator. Compared with the traditional buck regulator, the R3 Technology™ has a faster transient response. This is due to the R3 modulator commanding variable switching frequency during a load transient. The Serial VID Interface (SVI) provides the means for the CPU to communicate with the ISL6265 via the I²C bus and thus receive input voltage, output voltage, and temperature information.

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The ISL6265A is a multi-output controller with integrated MOSFET drivers for AMD SVI capable mobile CPUs. It features a single-phase controller for the Northbridge portion of the CPU and two additional channels that can be configured for two-phase or individual single-phase outputs. The ISL6265A can be used for both uniplane and dual-plane processors. It utilizes Intersil's R3 Technology™ for faster transient response.

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The ISL6323 is a hybrid SVI/PVI monolithic dual PWM hybrid controller that powers AMD SVI split-plane and PVI uniplane processors

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This is a Monolithic Dual PWM Hybrid Controller that supports AMD SVI Split-Plane and PVI Uniplane processors and provides high efficiency and tight regulation of synchronous buck DC/DC converters.

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The ISL6323B is a monolithic dual PWM hybrid controller supporting AMD SVI split-plane and PVI uniplane processors, providing high efficiency and tight regulation

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The ISL6324 is a monolithic dual PWM hybrid controller with I2C interface designed by Linear Technology for AMD SVI Split-Plane and PVI Uniplane processors. This device supports dual outputs, including a multiphase controller supporting uniplane VDD core voltage and a single phase controller supporting Northbridge (VDDNB) voltage. In SVI mode, ISL6324's multiphase controller is active, only supporting uniplane VDD processors. In PVI mode, ISL6324's multiphase controller is not active, only supporting uniplane VDD processors.

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The ISL6324A dual PWM controller delivers high efficiency and tight regulation from two synchronous buck DC/DC converters. The ISL6324A supports hybrid power control of AMD processors which operate from either a 6-bit parallel VID interface (PVI) or a serial VID interface (SVI). The dual output ISL6324A features a multi-phase controller to support uniplane VDD core voltage and a single phase controller to power the Northbridge (VDDNB) in SVI mode. Only the multi-phase controller is active in PVI mode to support uniplane VDD only processors. A precision uniplane core voltage regulation system is provided by a 2-to-4-phase PWM voltage regulator (VR) controller. The integration of two power MOSFET drivers, adding flexibility in layout, reduce the number of external components in the multi- phase section. A single phase PWM controller with integrated driver provides a second precision voltage regulation system for the North Bridge portion of the processor. This monolithic, dual controller with integrated driver solution provides a cost and space saving power management solution. For applications which benefit from load line programming to reduce bulk output capacitors, the ISL6324A features output voltage droop. The multi-phase portion also includes advanced control loop features for optimal transient response to load application and removal

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The ICL7660 and ICL7660A are monolithic CMOS power supply circuits that offer unique performance advantages over previously available devices. The ICL7660 performs supply voltage conversions from positive to negative for an input range of +1.5V to +10.0V, resulting in complementary output voltages of -1.5V to -10.0V. The ICL7660A does the same conversions with an input range of +1.5V to +12.0V, resulting in complementary output voltages of -1.5V to -12.0V. Only 2 noncritical external capacitors are needed for the charge pump and charge reservoir functions. The ICL7660 and ICL7660A can also be connected to function as voltage doublers and will generate output voltages up to +18.6V with a +10V input. Contained on the chip are a series DC supply regulator, RC oscillator, voltage level translator, and four output power MOS switches. A unique logic element senses the most negative voltage in the device and ensures that the output N-Channel switch source-substrate junctions are not forward biased. This assures latchup free operation. The oscillator, when unloaded, oscillates at a nominal frequency of 10kHz for an input supply voltage of 5.0V. This frequency can be lowered by the addition of an external capacitor to the “OSC” terminal, or the oscillator may be overdriven by an external clock. The “LV” terminal may be tied to GROUND to bypass the internal series regulator and improve low voltage (LV) operation.

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The ICL7660S Super Voltage Converter is a monolithic CMOS voltage conversion IC that offers significant performance advantages over similar devices. It is a direct replacement for the industry standard ICL7660, with an extended operating supply voltage range up to 12V and lower supply current. The ICL7660S does not require an external diode. Additionally, a Frequency Boost pin allows for achieving lower output impedance using smaller capacitors. All improvements are detailed in the “Electrical Specifications” section on page 3. Critical parameters are guaranteed across commercial, industrial, and military temperature ranges. The ICL7660S performs positive to negative supply voltage conversion for an input range of 1.5V to 12V, resulting in complementary output voltages of -1.5V to -12V. Only 2 non-critical external capacitors are needed for the charge pump and charge reservoir functions. The ICL7660S can function as a voltage doubler, generating up to 22.8V with a 12V input. It can also be used as a voltage multiplier or voltage divider. The chip includes a series DC power supply regulator, RC oscillator, voltage level translator, and four output power MOS switches. The oscillator, when unloaded, oscillates at a nominal frequency of 10kHz for a 5.0V input supply voltage. This frequency can be lowered by adding an external capacitor.

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The ISL97631 is a high-efficiency, constant frequency PWM regulator with an integrated boost diode and FET. It is designed for use in white LED driving applications and offers efficiencies up to 85%. The regulator operates at a switching frequency of 1.35MHz and accepts input voltages between 2.7V and 5.5V. With a maximum output voltage of 27V, the ISL97631 can drive up to 6 LEDs in series. It can also be used to drive LEDs in series/parallel combinations for applications requiring up to 15 LEDs. The ISL97631 is available in a 6 Ld TSOT package and operates over a temperature range of -40°C to +85°C.

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The ISL97632 is an efficient and highly integrated PWM boost LED driver that is suitable for 1.8” to 3.5” LCDs that employ 2 to 6 white LEDs for backlighting. With integrated Schottky diode, OVP, and dynamic digital dimming capability, the ISL97632 provides a simple, reliable, and flexible solution to the backlight designers.

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The ISL97634 is an efficient and highly integrated PWM boost LED driver that is suitable for 1.8” to 3.5” LCDs that employ 2 to 7 white LEDs for backlighting. The ISL97634 features a wide range of PWM dimming control capability. It allows dimming frequency as low as DC to 32kHz beyond audible spectrum. The ISL97634 also features a feedback disconnect switch to prevent the output from being modulated by the PWM dimming signal that minimizes system disturbance. The ISL97634 is available in the 8 Ld TDFN (2mmx3mm) package. There are 14V, 18V, and 26V OVP options that are suitable for 3 LEDS, 4 LEDs, and 7 LEDs (3.5V/20mA type) backlight applications respectively. The ISL97634 is specified for operation over the -40°C to +85°C ambient temperature at input voltage from 2.4V to 5.5V.

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ISL97635 is an 8-channel LED driver from Intersil. It supports 8x9 or 8x10 LED strings and can output up to 20mA current. It can be controlled through SMBus, external PWM or analog light sensor.

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The ISL97635A is a digitally controlled LED driver that controls 6 channels of LED current for LCD backlight applications. The ISL97635A can drive typically 54 (6x9) pieces of 3.5V/30mA or 60 (6x10) pieces of 3.2V/20mA LEDs. The ISL97635A contains 6 channels of voltage controlled current sources with typical currents matching of ±1%, which compensate for the non-uniformity effect of forward voltages variance in the LED stacks. To minimize the voltage headroom and power loss in the typical multi-strings operation, the ISL97635A features a dynamic headroom control that monitors the highest LED forward voltage string and uses its feedback signal for output regulation. The LED dimming control can be achieved through a SMBus, an external PWM, or a variable DC (analog light sensor) input. SMBus controlled dimming allows 256 levels each of PWM and DC current adjustments. The SMBus PWM dimming frequency can be adjusted from 100Hz to 5kHz by an external capacitor. External PWM input allows up to 20kHz audio noise free PWM dimming. The SMBus PWM setting and an external PWMI signal can be synchronized for dimming.

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The ISL80101 is a high-performance low-dropout regulator (LDO) capable of delivering 1A output current. It operates from input voltages of 2.2V to 6V and provides adjustable output voltages ranging from 0.8V to 5V. Fixed output voltage options are available in 0.8V, 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, and 5V. The LDO features a soft-start pin that allows adjustment of in-rush current and delay for a valid output voltage. It utilizes a sub-micron CMOS process, offering lower quiescent current and faster load transient response compared to bipolar LDOs. It is suitable for various applications including DSP, FPGA, and µP core power supplies, noise-sensitive instrumentation systems, post regulation of switched mode power supplies, industrial systems, medical equipment, telecommunications and networking equipment, servers, and hard disk drives.

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The ISL80102 and ISL80103 are low voltage, high-current, single output LDOs specified for 2A and 3A output current, respectively. These parts operate from input voltages of 2.2V to 6V and are capable of providing output voltages of 0.8V to 5V on the adjustable VOUT versions.

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The ISL6719 is a 100V linear bias supply for generating a low voltage bias supply from intermediate distributed voltages commonly used in telecom and datacom applications.

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