Version: 09/10/23
www.lowpowersemi.com
High
Features
Easy-to-use standalone high-
efficiency
switching charger
-
Proprietary sensorless technique
-
4.1V to 6.2V input voltage with 28V absolute
maximum input voltage rating
- Resistor
programmable charge voltages
4.1V/4.2V/4.35V/4.4V
-
2.0A maximum fast charge current
- 1.2MHz switching frequency
- 95
% high efficiency @ VBAT=3.8V, ICHG=
- 93
% high efficiency @ VBAT=3.8V, ICHG=2A
- Input voltage regulation
to allow weak input
power source
to charge battery
-
Support trickle charge, precharge,
Current (CC) charge and C
onstant
(CV) charge, charge termination and recharge
High charge accuracy
- +/-
0.5% charge voltage regulation
- +/- 6
% charge current regulation
High integration
- Integrated all MOSFETs
- Internal loop compensation
- Internal bootstrap diode
-
LED charge indication driver
Protections
- Cycle-by-
cycle current limit protection
- Input under-
voltage lockout (UVLO)
- Input over-
voltage protection (OVP)
-
Cold/hot battery temperature monitoring
-
Junction temperature thermal regulation
- Charge safety timer
Packaging
- DFN3x3-10
- RoHS compliant and halogen f
ree
- 100% lead (Pb) free
Applications
Portable battery powered devices
Gaming devices
Charging docks and cradles
E-Cigarette
www.lowpowersemi.com
email:
marketing@lowpowersemi.com
High
-
Efficiency 2A Sensorless Switching Charger
efficiency
1-cell
Proprietary sensorless technique
4.1V to 6.2V input voltage with 28V absolute
maximum input voltage rating
programmable charge voltages
2.0A maximum fast charge current
% high efficiency @ VBAT=3.8V, ICHG=
1A
% high efficiency @ VBAT=3.8V, ICHG=2A
to allow weak input
to charge battery
(VINDPM)
Support trickle charge, precharge,
Constant
onstant
Voltage
(CV) charge, charge termination and recharge
0.5% charge voltage regulation
% charge current regulation
LED charge indication driver
cycle current limit protection
voltage lockout (UVLO)
voltage protection (OVP)
Cold/hot battery temperature monitoring
Junction temperature thermal regulation
ree
General Description
The LP4032 is a standalone 1
battery charger providing up to
to the battery from
4.1V to 6.2V input voltage. The
charge current is programmable by
connected from ISET to GND and the charge
voltage is
programmable
from VSET to GND.
and disabled from
ISET pin.
at 1.2MHz switching frequency allowing
small-size 1uH
inductor
patent-protected
integrated
technique eliminates external sensing resistor
allowing very
high charge efficiency
and very
small footprint (20mmx10mm)
precharge
, fastcharge and
accuracy is competitive with
external-resistor-
based current sensing
architecture.
LP4032 is available in DFN3x3
package.
Order Information
LP4032
F
:
Package Type
QV:
Application Circuit
VBUS
1μF
4.1V – 6.2V
C1
REGN
STAT
VSET
GND
2.2μF
C2
REGN
VIN
ISET
1kΩ
LP4032
20kΩ
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1 / 20
LP4032
Efficiency 2A Sensorless Switching Charger
General Description
The LP4032 is a standalone 1
-cell switching
battery charger providing up to
2A charge current
4.1V to 6.2V input voltage. The
charge current is programmable by
a resistor
connected from ISET to GND and the charge
programmable
by a resistor connected
The charge can be enabled
ISET pin.
The LP4032 operates
at 1.2MHz switching frequency allowing
a
inductor
for 2A fast charging. The
integrated
current sensing
technique eliminates external sensing resistor
high charge efficiency
, low BOM cost
small footprint (20mmx10mm)
. The
, fastcharge and
termination current
accuracy is competitive with
based current sensing
LP4032 is available in DFN3x3
-10
Order Information
:
Pb-Free
Package Type
DFN -10
Application Circuit
PMID
ENP
SW
10μF
C3
TS
BAT
SCL
1μH
47nF
C4
BST
+
REGN
10μF
C5
RT1
RT2
Version: 09/10/23
www.lowpowersemi.com
Device Information
Part Number
Top Marking
LP4032QVF
LPS
LP4032
YWX
Marking indication: Y:
Year code. W: Week code. X: Batch numbers.
www.lowpowersemi.com
email:
marketing@lowpowersemi.com
Top Marking
Package
Moisture Sensitivity Level
DFN-10 MSL3
Year code. W: Week code. X: Batch numbers.
LP4032
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2 / 20
Moisture Sensitivity Level
Shipping
5K/REEL