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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC4100 датащи(PDF) 1 Page - Linear Technology |
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LTC4100 датащи(HTML) 1 Page - Linear Technology |
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1 / 30 page  LTC4100 1 4100fb TYPICAL APPLICATION DESCRIPTION Smart Battery Charger Controller The LTC®4100 Smart Battery Charger is a single chip charging solution that dramatically simplifies construction of an SBS compliant system. The LTC4100 implements a Level 2 charger function whereby the charger can be programmed by the battery or by the host. A SafetySignal on the battery being charged is monitored for temperature, connectivity and battery type information. The SMBus interface remains alive when the AC power adapter is removed and responds to all SMBus activity directed to it, including SafetySignal status (via the ChargerStatus command). The charger also provides an interrupt to the host whenever a status change is detected (e.g., battery removal, AC adapter connection). Charging current and voltage are restricted to chemistry- specific limits for improved system safety and reliability. Limits are programmable by two external resistors. Ad- ditionally, the maximum average current from the AC adapter is programmable to avoid overloading the adapter when simultaneously supplying load current and charging current. When supplying system load current, charg- ing current is automatically reduced to prevent adapter overload. Figure 1. 4A Smart Battery Charger FEATURES APPLICATIONS n Single Chip Smart Battery Charger Controller n 100% Compliant (Rev. 1.1) SMBus Support Allows for Operation with or without Host n SMBus Accelerator Improves SMBus Timing n Wide Output Voltage Range: 3.5V to 26V n Hardware Interrupt and SMBAlert Response Eliminate Interrupt Polling n High Efficiency Synchronous Buck Charger n 0.5V Dropout Voltage; Maximum Duty Cycle > 98% n AC Adapter Current Limit Maximizes Charge Rate n ±0.8% Voltage Accuracy; ±4% Current Accuracy n Up to 4A Charging Current Capability n 10-Bit DAC for Charge Current Programming n 11-Bit DAC for Charger Voltage Programming n User-Selectable Overvoltage and Overcurrent Limits n High Noise Immunity SafetySignal Sensor n Available in a 24-Pin SSOP Package n Portable Instruments and Computers n Data Storage Systems and Battery Backup Servers L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 6650174 and 5723970. 17 11 6 10 7 9 8 15 16 13 14 20 5 4 24 23 1 3 2 21 22 18 19 12 3V TO 5.5V 0.12μF 0.1μF 0.068μF 0.1μF 0.01μF 0.0015μF 6.04k 10k 54.9k 100Ω 0.033Ω 20μF 20μF 0.1μF 10μH 0.025Ω SMBCLK 5k SMBDAT SMBCLK SMBDAT DCIN 4100 TA01 CHGEN SMBALERT# ACP SMART BATTERY SYSTEM LOAD 1.13k 1.21k 13.7k SafetySignal VDD DCDIV CHGEN ACP SMBALERT SCL SDA THB THA ILIM VLIM IDC DCIN INFET CLP CLN TGATE BGATE PGND CSP BAT VSET ITH GND LTC4100 VBAT < 5.5V > 5.5V LTC4101 LTC4100 PART |
Аналогичный номер детали - LTC4100_09 |
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Аналогичное описание - LTC4100_09 |
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ссылки URL |
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