Designed for pulse-width-modulated (PWM) control of DC motors, the A4955 is capable of 50 V operation and provides gate drive for an all n-channel external MOSFET bridge. Input terminals are provided for use in controlling the speed and direction of a DC motor with externally applied PWM control signals. Internal synchronous rectification control circuitry is provided to lower power dissipation during PWM operation. Internal circuit protection includes VDS protection, thermal shutdown with hysteresis, undervoltage monitoring of VBB, and crossover-current protection. The A4955 is supplied in a low-profile 4×4 mm, 20-contact QFN package (suffix “ES”) and a 20-lead eTSSOP (suffix “LP”), both with exposed thermal pad.

Network GSM 900 / 1800 No No Launch 2015, June Available. Released 2015, June Body 108.5 x 45.5 x 14.1 mm (4.27 x 1.79 x 0.56 in) 69.8 g (2.47 oz) Mini-SIM - Flashlight Display TFT, 65K colors 1.4 inches, 6.3 cm 2 (~12.8% screen-to-body ratio) 128 x 128 pixels, 1:1 ratio (~129 ppi density) Memory No 2000 contacts Yes 4 MB RAM Camera No Sound Yes Yes Comms No No No FM radio microUSB 2.0 (charging only) Features SMS Yes No - Calculator - Reminders - Calendar Battery Removable Li-Ion 800 mAh battery Up to 840 h Up to 15 h Misc Black, Cyan, White About 20 EUR Disclaimer. Nokia 105 rm 1133 proshivka.

Microchip Technology MIC4606 85V Full Bridge MOSFET Drivers Microchip Technology MIC4606 85V Full Bridge MOSFET Drivers offer adaptive dead time and shoot-through protection. MIC4606's adaptive dead-time circuitry constantly monitors both sides of the full-bridge. This design minimizes the time between high-side and low-side MOSFET transitions, which in turn maximizes power efficiency.

The A4957 is a full-bridge controller for use with external N-channel power MOSFETs and is specifically designed for applications with high-power inductive loads such as brush DC motors. Full bridge driver, full bridge mosfet driver, full bridge driver ic. Download free crusaders scratch rar.

Antishoot-through circuitry prevents erroneous inputs and noise from turning both MOSFETs of each side of the bridge on at the same time. With a wide operating supply range of 5.5V to 16V, the MIC4606 maximizes system efficiency.

When using battery-powered applications, the 5.5V operating voltages enable longer run times. In addition, the MIC4606's adjustable gate drive moves the gate drive voltage to V DD for optimal MOSFET R DS(ON), which minimizes power loss due to the MOSFET's R DS(ON). MIC4606 offers 235μA total quiescent current for low power consumption, fast 35ns propagation times, and drives an 1000pF load with 20ns rise and fall times. The MC4606-1 includes four independent inputs whereas the MIC4606-2 uses two PWM inputs, one for each side of the H-bridge. The MIC4606-1 and MIC4606-2 are available in a 16-pin 4mmx4mm QFN package with an operating temperature range of -40°C to 125°C.