Datasheet CN3165 (Consonance) - 4
| Manufacturer | Consonance |
| Description | Complete constant-current /constant voltage linear charger for single cell Li-ion and Li Polymer batteries |
| Pages / Page | 13 / 4 — CONSONANCE. Pin Description. Pin No. Name. Function Description. … |
| File Format / Size | PDF / 443 Kb |
| Document Language | English |
CONSONANCE. Pin Description. Pin No. Name. Function Description. Temperature Sense Input
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CONSONANCE Pin Description Pin No. Name Function Description Temperature Sense Input.
Connecting TEMP pin to NTC thermistor’s output in Lithium ion battery pack. If TEMP pin’s voltage is below 45% or above 80% of supply voltage VIN, this means that battery’s temperature is too 1 TEMP high or too low, charging is suspended. If TEMP’s voltage level is between 45% and 80%of supply voltage, battery fault state is released, and charging will resume. The temperature sense function can be disabled by grounding the TEMP pin.
Constant Charge Current Setting and Charge Current Monitor Pin.
The charge current is set by connecting a resistor RISET from this pin to GND. When in precharge mode, the ISET pin’s voltage is regulated to 0.12V. When 2 ISET in constant charge current mode, the ISET pin’s voltage is regulated to 1.205V. In all modes during charging, the voltage on ISET pin can be used to measure the charge current as follows: ICH = (VISET／RISET)×986 3 GND
Ground Terminal (Ground). Positive Input Supply Voltage.
VIN is the power supply to the internal circuit. 4 VIN When VIN drops to within 10mv of the BAT pin voltage, CN3165 enters low power sleep mode, dropping BAT pin’s current to less than 3uA.
Battery Connection Pin.
Connect the positive terminal of the battery to BAT 5 BAT pin. BAT pin draws less than 3uA current in sleep mode. BAT pin provides charge current to the battery and provides regulation voltage.
Open-Drain Charge termination Status Output.
In charge termination 6 status, is pulled low by an internal switch; Otherwise pin is in high impedance state.
Open Drain Charge Status Output.
When the battery is being charged, the 7 pin is pulled low by an internal switch, otherwise pin is in high impedance state.
Battery Voltage Sense Input.
This Pin can sense the battery voltage; Also the 8 FB regulation voltage in constant voltage mode can be adjusted by connecting an external resistor between FB pin and BAT pin.
Absolute Maximum Ratings
All Terminal Voltage……………－0.3V to 6.5V Maximum Junction Temperature…...150℃ BAT Short-Circuit Duration………...Continuous Operating Temperature…...－40℃ to 85℃ Storage Temperature…...－65℃ to 150℃ Thermal Resistance (DFN-8)………….TBD Lead Temperature(Soldering, 10s)……...260℃ Stresses beyond those listed under ‘Absolute Maximum Ratings’ may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to Absolute Maximum Rating Conditions for extended periods may affect device reliability. www.consonance-elec.com 4 REV 1.0
Connecting TEMP pin to NTC thermistor’s output in Lithium ion battery pack. If TEMP pin’s voltage is below 45% or above 80% of supply voltage VIN, this means that battery’s temperature is too 1 TEMP high or too low, charging is suspended. If TEMP’s voltage level is between 45% and 80%of supply voltage, battery fault state is released, and charging will resume. The temperature sense function can be disabled by grounding the TEMP pin.
Constant Charge Current Setting and Charge Current Monitor Pin.
The charge current is set by connecting a resistor RISET from this pin to GND. When in precharge mode, the ISET pin’s voltage is regulated to 0.12V. When 2 ISET in constant charge current mode, the ISET pin’s voltage is regulated to 1.205V. In all modes during charging, the voltage on ISET pin can be used to measure the charge current as follows: ICH = (VISET／RISET)×986 3 GND
Ground Terminal (Ground). Positive Input Supply Voltage.
VIN is the power supply to the internal circuit. 4 VIN When VIN drops to within 10mv of the BAT pin voltage, CN3165 enters low power sleep mode, dropping BAT pin’s current to less than 3uA.
Battery Connection Pin.
Connect the positive terminal of the battery to BAT 5 BAT pin. BAT pin draws less than 3uA current in sleep mode. BAT pin provides charge current to the battery and provides regulation voltage.
Open-Drain Charge termination Status Output.
In charge termination 6 status, is pulled low by an internal switch; Otherwise pin is in high impedance state.
Open Drain Charge Status Output.
When the battery is being charged, the 7 pin is pulled low by an internal switch, otherwise pin is in high impedance state.
Battery Voltage Sense Input.
This Pin can sense the battery voltage; Also the 8 FB regulation voltage in constant voltage mode can be adjusted by connecting an external resistor between FB pin and BAT pin.
Absolute Maximum Ratings
All Terminal Voltage……………－0.3V to 6.5V Maximum Junction Temperature…...150℃ BAT Short-Circuit Duration………...Continuous Operating Temperature…...－40℃ to 85℃ Storage Temperature…...－65℃ to 150℃ Thermal Resistance (DFN-8)………….TBD Lead Temperature(Soldering, 10s)……...260℃ Stresses beyond those listed under ‘Absolute Maximum Ratings’ may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to Absolute Maximum Rating Conditions for extended periods may affect device reliability. www.consonance-elec.com 4 REV 1.0
