|Category||Power Management => Battery Management|
|Description||NE57611; Single Cell Li-ion Battery Charger;; Package: SOT530-1 (TSSOP8)|
|Company||Philips Semiconductors (Acquired by NXP)|
|Datasheet||Download NE57611 datasheet
The is a one-cell, Li-ion battery charger controller which includes constant-current and constant voltage charging, a precise charge termination, and precharging of undervoltage cells. It contains the minimum circuitry needed to safely charge a lithium-ion or lithium-polymer cell. This makes it good for very compact, portable applications.FEATURES
30 mV per cell charging accuracy from to +50 °C Low quiescent current µA ON; µA OFF) Undervoltage precharge detector Self-discharge maintenance chargingAPPLICATIONS
Cellular telephones Personal Digital Assistants Other 1-cell Li-ion portable applications
PACKAGE TYPE NUMBER NAME NE57611BDH VSOP-8A (TSSOP) DESCRIPTION plastic thin shrink small outline package; 8 leads; body width 4.4 mm TEMPERATURE RANGE +70 °C
PIN 1 2 SYMBOL VSS LV DESCRIPTION Connect to negative pole of battery. Low cell voltage detection circuit output pin. Open collector; Active-LOW. 3 LVEN Low voltage detection circuit ON/OFF control. LVEN = VCC: OFF LVEN = GND: ON 4 ON/OFF control input pin for the IC. ON/OFF = VCC: OFF ON/OFF = GND: 6 7 VCC DRV VCELL Power supply input pin. Charging control output pin drives external PNP-Transistor to control charging. Battery voltage input pin. Detects battery voltage and controls rated voltage to the prescribed voltage value. 8 CS Current detection pin. Detects current by drop in external resistor voltage and controls rated current. Current value can be set 0.1 V/R1 typ.
SYMBOL VCC(max) VCEL(max) VLVEN VON/OFF Topr Tstg PD Power supply voltage Maximum cell voltage LVEN input voltage ON/OFF input voltage Operating ambient temperature Storage temperature Power dissipation PARAMETER MIN. MAX. +18 +13 VCC + 0.3 VCC UNIT °C mW
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