Li-Battery Protection or Charger IC  
1. Battery Protection IC
Part No. Features VCC PD(mW) ICC(Max) Short Circuit Detection Voltage Charger Detection Voltage Package
UB227 1-CELL LITHIUM-ION/POLYMER BATTERY PROTECTION IC

* Wide Supply Voltage Range: VDD=1.5V~8.0V
* Ultra-Low Quiescent Current: IOPE=3.0μA (VDD=3.9V)
* Ultra-Low Power-Down Current: IPDN=0.1μA (VDD=2.0V)
* Overcharge Detection Voltage: VCU=3.9V~4.4V
* Overcharge Release Voltage: VCL=3.8V~4.4V
* Over Discharge Release Voltage: VDL=2.0V~3.0V
* Over Discharge Release Voltage: VDU=2.0V~3.4V
* Discharge Over Current Detection Voltage: VDIOV=0.05V~0.30V
* Discharge Short Circuit Detection Voltage: VSHORT=0.85V (Fixed)
* Charge Over Current Voltage: VCIOV=-0.115V (Fixed)
* Charger Detection Voltage: VCHA=-0.7V (Fixed)
* Delay Times are Generated by an Internal Circuit. (External Capacitors are Unnecessary.)
-0.3V~12.0V - 6uA 0.5V~1.2V  -1.6V~-0.2V SOT-26
UB240 Li-Battery Protection IC 2nd Level Protection For 1 to 4 Cells Battery Pack.

* High-accuracy voltage detection circuit for each cell
* Overcharge detection voltage n (n=1 to 4): 4.05V to 4.50V
(in 50mV steps)
* Overcharge hysteresis voltage n (n=1 to 4): 0.25V±0.07V,
0.30V±0.10V
* Delay times for overcharge detection can be set by an external
capacitor
* CMOS output active “H”
* Wide operating voltage range 3.6V to 24V
* Wide operating temperature range −40°C to +85°C
* Low current consumption: 1.5μA typ. (+25°C) at 3.5V for each
cell
4.0V~25.0V - 3uA - - SOP-8 TSSOP-8
UB241* Li-Battery Protection IC Protection For Single Cell Pack   VCU=3.9V~4.4VVDL2.0V~3.0V 1.5V~8.0V 250mW 6uA -   SOT-25
UB211C 1-Cell Lithium-Ion/Polymer Battery Protection IC
AA: VCU=4.2VVCL=4.1VVDL=2.8VVDU=2.9VVDIOV=0.15V
AB: VCU=4.28V
VCL=4.13VVDL=2.8VVDU=3.1VVDIOV=0.15V

* Wide Supply Voltage Range: VDD=1.5V~8.0V
* Ultra-Low Quiescent Current: IOPE=3.0μA (VDD=3.5V)
* Ultra-Low Power-Down Current: IPDN=0.2μA (VDD=1.5V)
* Overcharge Detection Voltage: VCU=3.9V~4.4V
* Overcharge Release Voltage: VCL=3.8V~4.4V
* Over Discharge Release Voltage: VDL=2.0V~3.0V
* Over Discharge Release Voltage: VDU=2.0V~3.4V
* Discharge Over Current Detection Voltage: VDOIV=0.05V~0.30V
* Discharge Short Circuit Detection Voltage: VSHORT=0.5V (Fixed)
* Charge Over Current Voltage: VCOIV=-0.1V (Fixed)
* Charger Detection Voltage: VCHA=-0.7V (Fixed)
* Delay Times are Generated by an Internal Circuit. (External Capacitors are Unnecessary.)
1.5V~8.0V   8uA 0.3V~0.7V   -1.2V~-0.2V SOT-25
UB242 Li-Battery Protection IC Protection For Single Cell Pack VCU=4.25V~4.325VVDL=2.25V~2.50V

* Wide supply voltage range: VDD=1.8V~9.0V
* Ultra-low quiescent current: IDD=3.0μA (VDD=3.9V)
* Ultra-low power-down current: IPD=0.1μA (VDD=2.0V)
* Overcharge detection voltage: VOCU=4.200V~4.400V
* Overcharge release voltage: VOCR=4.005V~4.225V
* Over discharge detection voltage : VODL=2.15V~3.00V
* Over discharge release voltage: VODR=2.32V~3.10V
* Over current detection voltage: VOI1=0.05V~0.20V
* Short circuit detection voltage: VOI2=1.35V (Fixed)
* Charger detection voltage: VCH=-0.7V
Reset resistance for over current protection: RSHORT
500kΩ
* Delay times are generated by an internal circuit.
(External capacitors are unnecessary.)
1.8V~9.0V   6uA 1.0V~1.75V  -1.2V~-0.2V SOT-26
UB2421 One Cell Lithium-ion/Polymer Battery Protection IC
VCU=4.3VVDL=2.4V

* Wide supply voltage range: VDD=1.8V~9.0V
* Ultra-low quiescent Current: IDD=3.0μA (VDD=3.9V)
* Ultra-low power-down Current: IPD=0.1μA (VDD=2.0V)
* Overcharge detection voltage: VOCU=4.30V±0.05V
* Overcharge release voltage: VOCR=4.10V±0.05V
* Overdischarge release voltage: VODL=2.40V±0.10V
* Overdischarge release voltage: VODR=3.00V±0.10V
* Over current detection voltage: VOI1=0.15V±0.03V
* Short circuit detection voltage: VOI2=1.35V (Fixed)
* Charger detection voltage: VCH=-0.7V
* Delay times are generated by an internal circuit.
(External capacitors are unnecessary.)
1.8V~9.0V   6uA 1.0V~1.75V  -1.2V~-0.2V SOT-26
UB24205 Li-Battery Protection IC With Internal MOSFETs. Protection For Single Cell Pack VCU=4.25VVDL=2.25V

* Wide supply voltage range: VDD=1.8V~9.0V
* Ultra-low quiescent current: IDD=3.0μA (VDD=3.9V)
* Ultra-low power-down current: IPD=0.1μA (VDD=2.0V)
* Overcharge detection voltage: VOCU=4.250V±0.050V
* Overcharge release voltage: VOCR=4.055V±0.050V
* Over discharge release voltage: VODL=2.250V±0.100V
* Over discharge detection voltage: VODR=2.850V±0.100V
* Over current detection voltage: VOI1= 0.150V±0.030V
* Short circuit detection voltage: VOI2=1.35V (Fixed)
* Charger detection voltage: VCH=-0.7V
* Reset resistance for over current
protection: RSHORT>500kΩ
* No external MOSFETs
*Delay times are generated by an internal circuit
(External capacitors are unnecessary).
* Halogen Free
1.8V~9.0V   6uA 1.0V~1.75V  -1.2V~-0.2V SOP-8  
UB261 Battery Protection IC Protection For Single Cell Pack
VCU=3.9V~4.4VVDL=2.0V~3.0V

* Wide Supply Voltage Range: VDD=1.5V~8.0V
* Ultra-Low Quiescent Current: IOPE=3.0μA (VDD=3.5V)
* Ultra-Low Power-Down Current: IPDN=0.2μA (VDD=1.5V)
* Overcharge Detection Voltage: VCU=3.9V~4.4V
* Overcharge Release Voltage: VCL=3.8V~4.4V
* Over Discharge Release Voltage: VDL=2.0V~3.0V
* Over Discharge Release Voltage: VDU=2.0V~3.4V
* Over Current 1 Detection Voltage: VIOV1=0.05V~0.30V
* Over Current 2 Detection Voltage: VIOV2=0.5V (Fixed)
* Short Circuit Detection Voltage: VSHORT=1.2V (Fixed)
* Charger Detection Voltage: VCHA=-0.7V (Fixed)
* Delay Times are Generated by an Internal Circuit. (External Capacitors are Unnecessary.)
1.5V~8.0V 250mW 8uA 0.5V~1.7V -1.6V~-0.2V SOT-26
UB262 Battery Protection IC Protection For Single Cell Pack
VCU=4.25V~4.35VVDL=2.9V~3.0V

* High-accuracy voltage detection circuit
Overcharge detection voltage: 4.250~4.350V, Accuracy: ±50Mv
Overcharge release voltage: 4.050~4.150V, Accuracy: ±50mV
Overdischarge detection voltage: 2.30~2.90V, Accuracy: ±100mV
Overdischarge release voltage: 2.90~3.00V, Accuracy: ±100mV
Discharge overcurrent detection voltage: 150mV, Accuracy: ±30mV
Short-circuiting detection voltage: 0.85V (fixed), Accuracy: ±300mV
* Delay times are generated by an internal circuit (external capacitors are unnecessary)
Overcharge delay time: 100ms (typ.)
Overdischarge delay time: 25ms (typ.)
Discharg e overcurrent delay time: 10ms (typ.)
Short circuit delay time: 500μs (typ.)
* Low current consumption (Products with Power-down Function)
Operation mode: 3.0μA typ., 6.0μA max. (VDD=3.9V)
Ultra low power-down current: 0.1μA max. (VDD=2.0V)
* High-withstanding-voltage device is used for charger connection pins (CS pin and OC pin: Absolute maximum
rating=20V)
* 0 V battery charge function “available” / “unavailable” are selectable.
* Wide operating temperature range: -40°C~+85°C
1.5V~8.0V 250mW 6uA 0.55V~1.15V -0.3V(Typ) SOT-26
UB209A Li-Ion Battery Protection IC For Series Multi-Cell
VCU=3.8V~4.25V

* Settable delay time by external capacitor for output pin
* High-accuracy voltage detection circuit
* Two types of cell-balance function: charge/discharge
* Control charging, discharging, cell-balance by CTLC, CTLD pins
* Low current consumption: 8.0μA max
* Wide range of operation temperature (-40°C ~ +85°C)
1.5V~8.0V 700mW 8uA -   TSSOP-8 SOP-8
UB209B Li-Ion Battery Protection IC For Series Multi-Cell
VCU=3.8V~4.25V

* Settable delay time by external capacitor for output pin
* High-accuracy voltage detection circuit
* Two types of cell-balance function: charge/discharge
* Control charging, discharging, cell-balance by CTLC,
CTLD pins
* Low current consumption: 8.0μA max
* Wide range of operation temperature (-40°C~+85°C)
1.5V~8.0V 700mW 8uA -   TSSOP-8 SOP-8
UB244A Li-Ion Battery Protection IC For 1-Cell To 4-Cell Pack
VCU=4.05V~4.5V

* High-accuracy voltage detection circuit for each cell
* Overcharge detection voltage n (n=1 to 4): 4.05V to 4.50V
(in 50mV steps)
* Overcharge hysteresis voltage n (n=1 to 4): 0.38V±0.10V,
0.25V±0.07V, 0.13V±0.04V, 0.045V±0.02V, None
* Delay times for overcharge detection can be set by an external
capacitor
* CMOS output active “H”
* Wide operating voltage range 3.6V to 24V
* Wide operating temperature range −40°C to +85°C
* Low current consumption: 1.5μA typ. (+25°C) at 3.5V for each cell
3.6V~24V 650mW 6uA -   MSOP-8
UB264A Li-Ion Battery Protection IC For 2-Cell To 4-Cell Pack
VCU=4.3V~4.5V

* High-accuracy voltage detection circuit for each cell
* Overcharge detection voltage n (n=1 to 4): 4.30V to 4.80V (in 50mV steps)
* Overcharge hysteresis voltage n (n=1 to 4): -0.52V±0.21V,
−0.39V±0.16V, −0.26V±0.11V, −0.13V±0.06V, None
* Delay times for overcharge detection can be set by an internal circuit without external capacitors
* Output control function via CTL pin
* CMOS output active “H”
* Wide operating voltage range 3.6V to 24V
* Wide operating temperature range −40°C ~ +85°C
* Low current consumption: 2.5μA typ. (+25°C) at 3.5V for each cell
3.6V~24V 650mW 10uA -   TSSOP-8
UB264B Li-Ion Battery Protection IC For 2-Cell To 4-Cell Pack
VCU=4.3V~4.5V

* High-accuracy voltage detection circuit for each cell
* Overcharge detection voltage n (n=1 to 4): 4.30V to 4.80V (in 50mV steps)
* Overcharge hysteresis voltage n (n=1 to 4): -0.52V±0.21V,
−0.39V±0.16V, −0.26V±0.11V, −0.13V±0.06V, None
* Delay times for overcharge detection can be set by an internal circuit without external capacitors
* Output latch function after overcharge detection
* CMOS output active “H”
* Wide operating voltage range 3.6V to 24V
* Wide operating temperature range −40°C to +85°C
* Low current consumption: 2.5μA typ. (+25°C) at 3.5V for
each cell
3.6V~24V 650mW 10uA -   TSSOP-8
UB291 1-CELL LITHIUM-ION/POLYMER BATTERY PROTECTION IC

* Wide Supply Voltage Range: VDD=1.5V~10V
* Ultra-Low Quiescent Current: IOPE=3.0μA (VDD=3.9V)
* Ultra-Low Power-Down Current: IPDN=0.2μA (VDD=2.0V)
* Overcharge Detection Voltage: VDET1=4.05V~4.35V
* Overcharge Release Voltage: VREL1=3.8V~4.25V
* Over Discharge Detection Voltage: VDET2=2.2V~3.1V
* Over Discharge Release Voltage: VREL2=2.3V~3.3V
* Discharge Over Current Detection Voltage: VDET3=0.07V~0.23V
* Discharge Short Circuit Detection Voltage: VSHORT=0.5V
* Charge Over Current Voltage: VDET4=-0.1V
* Charger Detection Voltage: VCHA=-0.7V
* Delay Times are Generated by an Internal Circuit. (External Capacitors are Unnecessary.)
1.5V~10.0V   8uA 0.35V~0.65V -1.6V~-0.2V SOT-26
*: Under  Development
2. Battery Charger IC  
Part No. Features VCC IBAT(MAX) ICC(Max)   Package
   
UB2012 Advanced Linear Charge Management IC for Single and Two-cell Lithium-Ion and Lithium-Polymer
A4.1V    B4.2V  C8.2V   D8.4V

* Ideal for Single 4.1V,4.2V and Dual-Cell 8.2V,8.4V Li-Ion or Li-Pol Packs
* 0.3V Dropout Voltage for Minimizing Heat Dissipation
* Better than ±1.2% Accuracy of Voltage Regulation With Preset Voltages
* Dynamic Compensation of Battery Pack’s Internal Impedance to short Charging Time
* Optional Cell-Temperature Monitoring
* Integrated Voltage and Current Regulation With Programmable Charge-Current
* Integrated Cell Conditioning for Reviving Deeply Discharged Cells and Minimizing Heat Dissipation During Initial Charge Stage
* Charge Status Output for Single or Dual Led or Host Processor Interface
* Automatic Battery-Recharge Feature
* Charge Termination by Minimum Current
* Automatic Low-Power Sleep Mode When VCC is Removed
* EVMs Available for Quick Evaluation
4.5V~12.0V   7000uA   DIP-8 SOP-8
UB2016 Charger Management IC For Single Li or Li-Polymer
Battery with fixed 4.2V; OTP and trickle charge

* Programmable Charge Current Up to 500mA.
* No External MOSFET, Sense Resistor or Blocking Diode Required.
* Complete linear charger in ThinSOT Package for Single Cell / Coin Cell Lithium-lon Batteries.
* Constant Current / Constant Voltage Operation with Thermal Regulation to Maximize Charge Rate Without Risk
of Overheating.
* Charges Single Cell Li-lon Batteries Directly form USB Port.
* Preset 4.2V Charge Voltage with High Accuracy about ±1.2%.
* Automatic Recharge.
* 2.9V Trickle Charge Threshold.
* 20μA Supply Current in Shutdown Mode.
* Charge Status Output Pin.
4.5V~6V 500mA 2000uA   SOT-25
UB2017 Charger Management IC For Single Li or Li-Polymer
Battery with fixed 4.2V; OTP

* Programmable Charge Current Up to 500mA.
* No External MOSFET, Sense Resistor or Blocking Diode Required.
* Complete linear charger in Thin SOT Package for Single Cell / Coin Cell Lithium-lon Batteries.
* Constant Current / Constant Voltage Operation with Thermal Regulation to Maximize Charge Rate Without Risk
of Overheating.
* Charges Single Cell Li-lon Batteries Directly form USB Port.
* Preset 4.2V Charge Voltage with High Accuracy about ±1.2%.
* Automatic Recharge.
* 2.9V Trickle Charge Threshold.
* 25μA Max Supply Current in Shutdown Mode.
* Charge Status Output Pin.
4.5V~6V 500mA 2000uA   SOT-26
UB6054 Charger Management IC For Single Li or Li-Polymer
Battery with fixed 4.2V; OTP and trickle charge

* Programmable Charge Current Up to 500mA.
* No External MOSFET, Sense Resistor or Blocking Diode Required.
* Complete linear charger in ThinSOT Package for Single Cell / Coin
Cell Lithium-lon Batteries.
* Constant Current / Constant Voltage Operation with Thermal
Regulation to Maximize Charge Rate Without Risk of Overheating.
* Charges Single Cell Li-lon Batteries Directly form USB Port.
* Preset 4.2V Charge Voltage with High Accuracy about ±1.2%.
* Automatic Recharge.
* 2.9V Trickle Charge Threshold.
* 20μA Supply Current in Shutdown Mode.
* Available in a SOT-25 Pacakage.
* Charge Status Output Pin.
4.5V~6V 500mA 2000uA   SOT-25
UB6054A Charger Management IC For Single Li or Li-Polymer
Battery with fixed 4.2V; OTP

* Programmable Charge Current Up to 500mA.
* No External MOSFET, Sense Resistor or Blocking Diode Required.
* Complete linear charger in ThinSOT Package for Single Cell / Coin
Cell Lithium-lon Batteries.
* Constant Current / Constant Voltage Operation with Thermal
Regulation to Maximize Charge Rate Without Risk of Overheating.
* Charges Single Cell Li-lon Batteries Directly form USB Port.
* Preset 4.2V Charge Voltage with High Accuracy about ±1.2%.
* Automatic Recharge.
* 2.9V Trickle Charge Threshold.
* 20μA Supply Current in Shutdown Mode.
* Charge Status Output Pin.
4.5V~6V 500mA 2000uA   SOT-26
UB10803 Charger Management IC For Single Li or Li-Polymer
Battery with fixed 4.2V; OTP and Dual LED drivers

* A Constant-Current/Constant-Voltage Linear Charger
for Single-Cell Li-ion/Polymer Batteries
* Integrated Pass Element and Current Sensor
* Highly-Integrated, Requiring No External FETs or
Blocking Diode
* 4.2V Voltage Accuracy: ±1.2% All Temperatures
(Available with 4.10V and 4.36V options upon request)
* Programmable Charge Current 50mA to 500mA
* Programmable End-Of-Charge Current by Current
Recharge Algorithm
* Pre-Charge for Fully Discharged Batteries
* 1μA (Typ.) Leakage Current of the Battery when No
Input Power is Attached or Charger is Disabled
* Power Present and Charge Status Indications
* Thermal Regulation on Charging Current to Prevent
Over-Heat
* Few Components, Cost-Effective Solutions
4.5V~6.0V 500mA 1000uA   HSOP-8 DFN-8(2X3)
UB10823* Charger Management IC For Single Li or Li-Polymer
Battery with fixed 4.2V; With USB Detection
4.5V~6.5V 1000mA 600uA   SOP-10
UB2011 ADVANCED LINEAR AND SWITCH MODE CHARGE MANAGEMENT IC FOR LITHIUM-ION AND LITHIUM-POLYMER

* Ideal for 1-4 Series Circuit Cell Li-Ion or Li-Pol Packs
* High Accuracy of Voltage Regulation With Preset Voltages
* Optional Cell-Temperature Monitoring
* Current Regulation With Programmable Charge-Current
* Charge Termination by Minimum Current
* With Short-Circuit Protection
* With Thermal Protection
* Charge Status Output Pin
* Available for Linear and Switch-Mode charging
3V~7V - 350uA   SOP-8
UC34363 Constant Voltage And Constant Current Controller For Battery Chargers

* CV/CC linear charge
* 3A maximum charge current
* PWM control Mode
* Available charge current
* Over Voltage protect ,Over Current Protect
* Enable Control function
* Very Low Power Dissipation in Standby Mode
8V~30V - 15000uA   SOP-8
*: Under  Development