| Power Management (PMIC) | 4 | Active | |
ADP1972Buck or Boost, PWM Controller for Battery Test Solutions | Integrated Circuits (ICs) | 2 | Active | The ADP1972 is a constant frequency, voltage mode, pulse width modulation (PWM) controller for buck or boost, dc-to-dc, asynchronous applications. The ADP1972 is designed for use in asynchronous battery testing applications with an external, high voltage field effect transistor (FET), half bridge driver, and an external control device, such as the AD8450.The asynchronous device operates as a buck converter in battery charge mode and operates as a boost converter in recycle mode to recycle energy to the input bus.The ADP1972 high voltage, VIN supply pin can withstand a maximum operating voltage of 60 V and reduces the need for additional system supply voltages. The ADP1972 has integrated features such as precision enable, pin selective buck or boost mode operation, internal and external synchronization control with programmable phase shift, programmable maximum duty cycle, and programmable peak hiccup current limit.Additional protection features include soft start to limit input inrush current during startup, input voltage undervoltage lockout (UVLO), and thermal shutdown (TSD). The ADP1972 also has a COMP pin to provide external control of the PWM operation and a FAULT pin that can be signaled to disable the DH and DL outputs if a fault condition occurs externally to the ADP1972.The ADP1972 is available in a 16-lead TSSOP package.APPLICATIONSPWM battery test systems with recycle capability including hybrid vehicles, PCs, and camera batteriesCompatible withAD8450constant voltage (CV) and constant current (CC) monitors |
ADP1974Bidirectional Synchronous PWM Controller for Battery Test and Formation | DC DC Switching Controllers | 2 | Active | The ADP1974 is a constant frequency, voltage mode, synchronous, pulse-width modulation (PWM) controller for bidirectional dc-to- dc applications. The ADP1974 is designed for use in battery testing, formation, and conditioning applications with an external, high voltage field effect transistor (FET) half bridge driver, and an external control device such as the AD8450/AD8451. The device operates as a buck converter in battery charge mode and as a boost converter in discharge mode to recycle energy to the input bus.The ADP1974 high voltage VIN supply pin can withstand a maximum operating voltage of 60 V and reduces the need for additional system supply voltages. The ADP1974 has integrated features such as precision enable, internal and external synchronization control with programmable phase shift, programmable maximum duty cycle, dead time control, and peak hiccup current-limit protection. Additional protection features include soft start to limit input inrush current during startup, precision enable, and thermal shutdown (TSD). The ADP1974 also has a COMP pin to provide external control of the PWM duty cycle and a FAULT pin that can disable the DH and DL outputs. These functions are compatible with the AD8450/AD8451 analog front-end (AFE) error amplifiers.The ADP1974 is available in a 16-lead TSSOP package and is pin compatible with the ADP1972.ApplicationsSingle and multicell battery formation and testingHigh efficiency battery test systems with recycle capabilityBattery conditioning (charging and discharging) systemsCompatible with AD8450/AD8451 constant voltage (CV) and constant current (CC) analog front end error amplifier |
ADP198Logic-Controlled, 1 A, High-Side Load Switch with Reverse Current Blocking | Evaluation and Demonstration Boards and Kits | 4 | Active | The ADP198 is a high-side load switch designed for operation between 1.65 V to 6.5 V that is protected against reverse current flow from output to input. A load switch provides power domain isolation thereby helping to keep subsystems isolated and powered independently, and enabling reduced power consumption. The ADP198 contains a low on-resistance Pchannel MOSFET that supports over 1 Amp of continuous load current. The low 2.5μA quiescent current and ultra-low shutdown current make the ADP198 ideal for battery-operated portable equipment. The built-in level shifter for enable logic makes the ADP198 compatible with modern processors and GPIO controllers. The LFCSP version also allows the user to program the start up time which control the inrush current at turn on.The ADP198 is available in an ultrasmall 1 mm × 1 mm, 4-ball, 0.5 mm pitch WLCSP. An 8-Lead 2 mm x 2 mm x 0.55 mm, 0.5 mm pitch LFCSP is also available.APPLICATIONSMobile phonesDigital cameras and audio devicesPortable and battery-powered equipment |
| Power Management (PMIC) | 2 | Active | |
| Development Boards, Kits, Programmers | 6 | Active | |
| Integrated Circuits (ICs) | 6 | Active | |
ADP21072 Amp Synchronous, Step-Down DC-to-DC Converter | Power Management (PMIC) | 3 | Active | TheADP2105/ADP2106/ ADP2107 are low quiescent current, synchronous, step-down dc-to-dc converters in a compact 4 mm × 4 mm LFCSP package. At medium to high load currents, these devices use a current mode, constant frequency pulse-width modulation (PWM) control scheme for excellent stability and transient response. To ensure the longest battery life in portable applications, the ADP2105 / ADP2106 / ADP2107 use a pulse frequency modulation (PFM) control scheme under light load conditions that reduces switching frequency to save power.The ADP2105 / ADP2106 / ADP2107 run from input voltages of 2.7 V to 5.5 V, allowing single Li+/Li− polymer cell, multiple alkaline/NiMH cells, PCMCIA, and other standard power sources. The output voltage of ADP2105 / ADP2106 / ADP2107 is adjustable from 0.8 V to the input voltage (indicated by ADJ), whereas the ADP2105 / ADP2106 / ADP2107 are available in preset output voltage options of 3.3 V, 1.8 V, 1.5 V, and 1.2 V (indicated by x.x V). Each of these variations is available in three maximum current levels: 1 A (ADP2105), 1.5 A (ADP2106), and 2 A (ADP2107). The power switch and synchronous rectifier are integrated for minimal external part count and high efficiency. During logic controlled shutdown, the input is disconnected from the output, and it draws less than 0.1 µA from the input source. Other key features include undervoltage lockout to prevent deep battery discharge and programmable soft start to limit inrush current at startup.ApplicationsMobile handsetsPDAs and palmtop computersTelecommunication/networking equipmentSet top boxesAudio/video consumer electronics |
ADP2108Compact, 600 mA, 3 MHz, Step-Down DC-to-DC Converter | DC/DC & AC/DC (Off-Line) SMPS Evaluation Boards | 18 | Active | The ADP2108 is a high efficiency, low quiescent current step-down dc-to-dc converter manufactured in two different packages. The total solution requires only three tiny external components. It uses a proprietary, high speed current mode, constant frequency PWM control scheme for excellent stability and transient response. To ensure the longest battery life in portable applications, the ADP2108 has a power save mode that reduces the switching frequency under light load conditions.The ADP2108 runs on input voltages of 2.3 V to 5.5 V, which allows for single lithium or lithium polymer cell, multiple alkaline or NiMH cell, PCMCIA, USB, and other standard power sources. The maximum load current of 600 mA is achievable across the input voltage range.The ADP2108 is available in fixed output voltages of 3.3 V, 3.0 V, 2.5 V, 2.3 V, 1.82 V, 1.8 V, 1.5 V, 1.3 V, 1.2 V, 1.1 V, and 1.0 V. All versions include an internal power switch and synchronous rectifier for minimal external part count and high efficiency. The ADP2108 has an internal soft start and is internally compensated. During logic controlled shutdown, the input is disconnected from the output and the ADP2108 draws less than 1 μA from the input source.Other key features include undervoltage lockout to prevent deep battery discharge and soft start to prevent input current over-shoot at startup. The ADP2108 is available in 5-ball WLCSP and 5-lead TSOT packages. The ADP2109 provides the same features and operations as the ADP2108 and has the additional function of a discharge switch in the WLCSP package.APPLICATIONSPDAs and palmtop computersWireless handsetsDigital audio, portable media playersDigital cameras, GPS navigation units |
| Development Boards, Kits, Programmers | 3 | Active | |
