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LP4069H
LP4069H Rev0.4 Jul.2022
36V/800mA Standalone Single-Cell Linear Charger
Features
Easy-to-use standalone single-cell charger
High input voltage linear charger
- Support up to 7V input voltage with 36V absolute
maximum input rating
- Maximum BAT withstand voltage up to 14V
- Programmable up to 800mA fast charge current
- Trickle current 10% of fast charge current
- Termination current 10% of fast charge current
High integration
- Integrated reverse blocking MOSFET
- Built-in charge current sensing
- Internal loop compensation
- Integrated charge status indication
Support full charge cycle of trickle current mode,
constant current (CC) mode, constant voltage (CV)
mode, charge termination and automatic recharge
BAT leakage current 30nA typical
Protection features
- Input under-voltage lockout (UVLO)
- Over-voltage protection (OVP)
- Battery reverse connection protection
- Thermal regulation foldback
RoHS Compliant and 100% Lead (Pb)-Free
Package: DFN-8(2mm x 2mm)/SOT23-6
General Description
The LP4069H device is a highly advanced linear charger
for single cell Li-Ion and Li-Polymer batteries. The device
is ideally suited for portable applications due to the small
DFN-8 package and low number of external components
required.
The device employs a full charge algorithm with trickle
current, constant current (CC), constant voltage (CV)
modes, charge termination and automatic recharge. The
device supports charge current up to 800mA,
programmed by an external resistor. The device can
withstand an input voltage up to 36V, which can protect
the charger from the accidental insertion of high voltage
and hot plug-in. The device can withstand a BAT voltage
up to 14V, which is suited for power battery applications.
Without an input supply, the battery reverse current is
only 30nA typical.
The device provides various safety features for battery
charging, including input under voltage lockout (UVLO),
input over-voltage protection (OVP), battery reverse
connection protection, and thermal regulation foldback
protection that is implemented by reducing the charge
current while the junction temperature reaches 140℃.
The LP4069H is available in a DFN-8 (2mmx2mm)
/SOT23-6 package.
Order Information
Applications
Wireless Speaker
Cordless Power Tools
Gaming Devices
Portable Media Players
Handheld Battery-Powered Devices
Charging Docks and Cradles
Power Bank
E-Cigarettes
LP4069H
F: Pb-Free
Package Type
B6: SOT23-6
Battery Voltage
Default:4.20V
QV: DFN-8（2mmx2mm)
www.lowpowersemi.com Email: marketing@lowpowersemi.com Page 2 of 17
LP4069H Rev0.4 Jul.2022
LP4069H
Device Information
Part Number
Top Marking
Battery Voltage
Moisture Sensitivity
Level
Package
Shipping
LP4069HQVF
LP4069
HYWX
4.20V MSL3 DFN-8 4K/REEL
LP4069HB6F
LP4069
HYWX
4.20V MSL3 SOT23-6 3K/REEL
Marking indication:
Y: Production year. W: Production week. X: Series number.
Typical Application Circuit
GND
CHRG
LP4069HQVF
Battery
IN
2kΩ
LED2
LED1
BAT
C
OUT
1-10μF
ISET
R
ISET
C
IN
1-10μF
VIN
1
3
8
7
5
FULL
2
EN
4
ON
OFF
R
IN
4.7Ω
(0603)