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LP4076, LP4076E
LP4076 Rev0.1 Jul.2022
36V/1A Standalone Single-Cell Linear Charger
Features
Easy-to-use standalone single-cell charger
High input voltage linear charger
- Support up to 7V operating input voltage with
36V absolute maximum input rating
- Maximum BAT withstand voltage up to 14V
- Programmable up to 1A fast charge current
- -0.5/+1% regulated output voltage accuracy
- 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)
- Input over-voltage protection (OVP)
- Battery reverse connection protection
- Thermal regulation
- Cold/hot battery temperature protection
RoHS Compliant and 100% Lead (Pb)-Free
Package: ESOP-8
General Description
The LP4076/LP4076E 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 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 1A, programmed by
an external resistor. The device can withstand an input
voltage up to 36V, which can protect the charger from
any accidental insertion of a high-voltage supply or a hot
insertion. The device can withstand a BAT voltage up to
14V, which is suited for power battery applications.
Without an input supply, the battery leakage 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, cold/hot battery temperature
protection, and thermal regulation protection that is
implemented by reducing the charge current when the
junction temperature reaches 140℃.
The LP4076/LP4076E is available in an ESOP-8
package.
Wireless Speaker
Cordless Power Tools
Gaming Devices
Portable Media Players
Handheld Battery-Powered Devices
Charging Docks and Cradles
Power Banks
E-Cigarettes
LP4076
F: Pb-Free
Package Type
SP:
ESOP-8
Default: Without EN
E: With EN Function
Applications
Order Information
www.lowpowersemi.com Email: marketing@lowpowersemi.com Page 2 of 16
LP4076 Rev0.1 Jul.2022
LP4076, LP4076E
Device Information
Part Number
Top Marking
Battery Voltage
Moisture Sensitivity
Level
Package
Shipping
LP4076SPF
LPS
LP4076
YWX
4.20V MSL3 ESOP-8 4K/REEL
LP4076ESPF
LPS
LP4076E
YWX
4.20V MSL3 ESOP-8 4K/REEL
Marking indication:
Y: Production year. W: Production week. X: Series number.
Typical Application Circuit
GND
CHRG
LP4076SPF
IN
2kΩ
LED2
LED1
BAT
C
BAT
1μF
ISET
R
ISET
C
IN
1μF
VIN
4
7
5
2
3
FULL
6
Battery
R
T1
8.2kΩ
VIN
R
T2
20kΩ
NTC
10kΩ
(3950k)
1
TS
R
IN
4.7Ω
(0603)
GND
CHRG
LP4076ESPF
IN
2kΩ
LED2
LED1
BAT
C
BAT
1μF
ISET
R
ISET
C
IN
1μF
VIN
4
7
5
2
3
FULL
6
EN
8
ON
OFF
Battery
R
T1
8.2kΩ
VIN
R
T2
20kΩ
NTC
10kΩ
(3950k)
1
TS
R
IN
4.7Ω
(0603)