MAX8808 MAXIM [Maxim Integrated Products], MAX8808 Datasheet
MAX8808
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MAX8808 Summary of contents
Page 1
... Other features include a bat- tery charging-status indicator (CHG), an active-low con- trol input (EN) for the MAX8808X and MAX8808Z (active-high control input for the MAX8808Y), and an active-low input power-source detection output (ACOK). The MAX8808X/MAX8808Y/MAX8808Z accept a +4 ...
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... Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C = 100kΩ unconnected (for the MAX8808X and MAX8808Z (for the = 0.47µ 1µ -40°C to +85°C, unless otherwise noted. Typical values are at ...
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... Full-Battery Detection Current I BATT Threshold Note 1: Specifications are 100% production tested at T design and characterization. _______________________________________________________________________________________ = 100kΩ unconnected (for the MAX8808X and MAX8808Z (for the = 0.47µ 1µ -40°C to +85°C, unless otherwise noted. Typical values are at BATT A CONDITIONS ...
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... C = 0.47µ +25°C, BATT VL A CHARGE CURRENT vs. BATTERY VOLTAGE 1000 900 800 700 600 MAX8808Y/ 500 MAX8808Z 400 MAX8808X 300 200 100 0.5 1.0 1.5 2.0 2.5 3.0 3.5 V (V) BATT CHARGE CURRENT vs. INPUT VOLTAGE HEADROOM 100 150 200 250 300 350 ...
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... EN has an internal 200kΩ pulldown resistor. MAX8808Z Logic-Level Enable Input. Drive EN low to disable charger. Pull EN high for normal operation. EN (MAX8808Y) has no internal pullup or pulldown resistor. Input Status Indicator. ACOK is an open-drain output that asserts low when V ACOK 7 V BATT during shutdown ...
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... Functional Diagram 6 _______________________________________________________________________________________ exceeds 2.5V, the charger soft-starts as it enters the fast-charge stage. In the MAX8808X/MAX8808Y/ MAX8808Z, the fast-charge current level is pro- grammed through a resistor from ISET to GND. As the (Figure 1). When battery voltage approaches 4.2V, the charging current is reduced. If the battery current drops to less than ...
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... TO REGULATE BATT AT 4.2V charger-control circuitry. EN has a 200kΩ internal pull- down resistor. The MAX8808Y contains an active-high enable input (EN) to enable the charger. Drive EN high to enable the charge-control circuitry. Drive EN low to disable the charger-control circuitry. Do not leave EN floating. It has no internal pullup or pulldown resistor. ...
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... Table stages of operation. CHG is suitable for driving a charge-indication LED. If the MAX8808X/MAX8808Y/ MAX8808Z is used in conjunction with a µP, a pullup resistor to the logic I/O voltage allows CHG to indicate charge status to the µP instead of driving an LED. The soft-start algorithm activates when entering fast- charge mode. In the MAX8808X, when the prequalifica- tion state is complete (V exceeds +2 ...
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... LED turns off. C2 4.2V 1µF Li+ Figure 4 shows the MAX8808X as a µP co-operated Li+ battery charger. The MAX8808X begins charging the bat- tery when EN is low. The µP can drive EN high to disable C3 the charger. The MAX8808X generates a ACOK signal to 0.47µF indicate the presence of an input supply ...
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... The MAX8808X/MAX8808Y/MAX8808Z can be configured to charge a battery at the highest current possible from the host port. MAX8808X as a USB battery charger. To make the cir- cuit compatible with either 100mA or 500mA USB ports, the circuit initializes at 100mA charging current. The µP then enumerates the host to determine its current capa- bility ...
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... Linear Li+ Battery Chargers with Integrated Pass FET and Thermal Regulation in 2mm x 2mm TDFN Pin Configuration TOP VIEW MAX8808 TDFN ( ) INDICATES THE MAX8808Y. ______________________________________________________________________________________ Chip Information PROCESS: BiCMOS 11 ...
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Linear Li+ Battery Chargers with Integrated Pass FET and Thermal Regulation in 2mm x 2mm TDFN (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) ...
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Linear Li+ Battery Chargers with Integrated Pass FET and Thermal Regulation in 2mm x 2mm TDFN (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) ...