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MAX8845W


Part Number MAX8845W
Manufacturer Maxim Integrated Products
Title 28V Linear Li+ Battery Chargers
Description The MAX8845Z/MAX8845Y/MAX8845X/MAX8845W are intelligent, stand-alone constant-current, constant-voltage (CCCV), thermally regulated linear charger...
Features www.DataSheet4U.com include an active-low control input (EN), an active-low input power source detection output (POK), and a fully charged top-off threshold detection output (CHG). The MAX8845Z/MAX8845Y/MAX8845X/MAX8845W accept an input supply range from 4.25V (4.4V for MAX8845W only) to 28V, but di...

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MAX8845X : The MAX8845Z/MAX8845Y/MAX8845X/MAX8845W are intelligent, stand-alone constant-current, constant-voltage (CCCV), thermally regulated linear chargers designed for charging a single-cell lithium-ion (Li+) battery. The MAX8845Z/MAX8845Y/MAX8845X/MAX8845W integrate a current-sense circuit, MOSFET pass element, thermal-regulation circuitry, and eliminate the external reverse-blocking Schottky diode to create the simplest and smallest charging solutions for handheld equipment. The ICs control the charging sequence from the prequalification state through constant current fast-charge, top-off charge, and full-charge indication. Proprietary thermal-regulation circuitry limits the die temperature durin.

MAX8845Y : Features ♦ CCCV, Thermally Regulated Linear 1-Cell Li+ Battery Charger ♦ No External MOSFET, Reverse Blocking Diode, or Current-Sense Resistor ♦ Programmable Fast-Charge Currents (1ARMS max) ♦ Programmable Top-Off Current Threshold (MIN) ♦ Input Overvoltage Protected 4.7V Output (SAFEOUT) ♦ Proprietary Die Temperature Regulation Control (+115°C) ♦ 4.25V to 28V Input Voltage Range with Input Overvoltage Protection Above +7.5V ♦ Low-Dropout Voltage (300mV at 500mA) ♦ Input Power-Source Detection Output (POK), Charge Status Output (CHG), Charge-Enable Input (EN) ♦ Output for Autobooting (ABO—MAX8845Z, ABO—MAX8845Y) ♦ Tiny, 3mm x 3mm 12-Pin Thin QFN Package, 0.8mm Height (max) MAX8845Z/MAX8845.

MAX8845Z : Features ♦ CCCV, Thermally Regulated Linear 1-Cell Li+ Battery Charger ♦ No External MOSFET, Reverse Blocking Diode, or Current-Sense Resistor ♦ Programmable Fast-Charge Currents (1ARMS max) ♦ Programmable Top-Off Current Threshold (MIN) ♦ Input Overvoltage Protected 4.7V Output (SAFEOUT) ♦ Proprietary Die Temperature Regulation Control (+115°C) ♦ 4.25V to 28V Input Voltage Range with Input Overvoltage Protection Above +7.5V ♦ Low-Dropout Voltage (300mV at 500mA) ♦ Input Power-Source Detection Output (POK), Charge Status Output (CHG), Charge-Enable Input (EN) ♦ Output for Autobooting (ABO—MAX8845Z, ABO—MAX8845Y) ♦ Tiny, 3mm x 3mm 12-Pin Thin QFN Package, 0.8mm Height (max) MAX8845Z/MAX8845.




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