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HX4054D

HX hengjiaxing · Battery Management · SOT-23-5

HX4054D from HX hengjiaxing, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	CHRG	output	Open-drain charge status output that is pulled low by an internal N-channel MOSFET while charging and goes high-impedance when charging is complete or a low-voltage lockout is detected.
2	GND	power_in	Ground pin for the charger.
3	BAT	power_out	Charge current output that supplies the battery and regulates the float voltage to 4.2V, with an internal precision resistor separating this pin from the float voltage when the charger is shut down and about 0.7mA reverse-battery current flowing from GND to BAT if the battery is connected backwards.
4	VIN	power_in	Positive input supply that must be between 4.25V and 6.5V and requires a bypass capacitor of at least 1µF, with the charger entering standby and drawing BAT current below 2µA when VIN falls to within 30mV of the BAT voltage.
5	PROG	bidirectional	Charge current programming, monitoring and shutdown pin, where a 1% resistor to ground sets the charge current via IBAT = (VPROG/RPROG)×1000 and the pin holds 1V in constant-current mode, with a 1.21V threshold for shutdown.

Key specifications

Parameter	Value
Manufacturer	HX hengjiaxing
Package	SOT-23-5
Category	Power Management (PMIC)
Pins	5

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Input voltage	Vin	4.25		6.5	V		5
Input current, charge mode	Iin		300	2000	µA	Charge mode, Rprog=10K	5
Input current, standby mode	Iin		200	500	µA	Standby mode	5
Input current, shutdown mode	Iin		25	50	µA	Shutdown mode (Rprog not connected, Vin<Vbat or Vin<Vuv)	5
Regulated output (float) voltage	Vfloat	4.16	4.2	4.25	V	0℃<TA<85℃, IBAT = 40mA	5
BAT pin charge current, Rprog=10k	Ibat	93	100	107	mA	Rprog=10k, Current mode	5
BAT pin charge current, Rprog=2k	Ibat	465	500	535	mA	Rprog=2k, Current mode	5
BAT pin current, standby mode	Ibat	0	-2.5	-6	µA	Standby mode, Vbat=4.2V	5
BAT pin current, shutdown mode	Ibat		1	2	µA	Shutdown mode	5
BAT pin current, sleep mode	Ibat		1	2	µA	Sleep mode, Vin=0V	5
Trickle charge current	Itrikl	30	40	50	mA	Vbat<Vtrikl, Rprog=5k	5
Trickle charge threshold voltage	Vtrikl	2.8	2.9	3	V	Rprog=10K, Vbat Rising	5
Trickle charge hysteresis voltage	Vtrhys	60	80	110	mV	Rporg=10k	5
Undervoltage lockout threshold voltage	Vuv	3.7	3.8	3.93	V	From Vin low to high	5
Undervoltage lockout hysteresis voltage	Vuvhys	150	200	300	mV		5
Manual shutdown threshold voltage, PROG rising	Vmsd	1.15	1.21	1.3	V	PROG pin rising	5
Manual shutdown threshold voltage, PROG falling	Vmsd	0.9	1	1.1	V	PROG pin falling	5
Vin-Vbat stop-working threshold voltage, rising	Vasd	70	100	140	mV	Vin from low to high	5
Vin-Vbat stop-working threshold voltage, falling	Vasd	5	30	50	mV	Vin from high to low	5
C/10 termination threshold current, Rprog=10k	Iterm	0.085	0.1	0.115	mA/mA	Rprog=10k	5
C/10 termination threshold current, Rprog=2k	Iterm	0.085	0.1	0.115	mA/mA	Rprog=2k	5
PROG pin voltage	Vprog	0.93	1	1.07	V	Rprog=10k, Current mode	5
CHRG pin weak pull-down current	Ichrg	8	20	35	µA	Vchrg=5V	5
CHRG pin minimum output voltage	Vchrg		0.35	0.6	V	Ichrg=5mA	5
Battery recharge hysteresis voltage	Δ Vrecg		100	200	mV	VFLOAT - VRECHRG	5
Input voltage (absolute maximum)	Vin	-0.3		7	V	Referenced to VSS; printed as VSS-0.3 to VSS+7	4
PROG pin voltage (absolute maximum)	Vprog	-0.3			V	Referenced to VSS; printed upper limit Vin+0.3	4
BAT pin voltage (absolute maximum)	Vbat	-0.3		7	V	Referenced to VSS; printed as Vss-0.3 to 7	4
CHRG pin voltage (absolute maximum)	Vchrg	-0.3		10	V	Referenced to VSS; printed as VSS-0.3 to VSS+10	4
Allowable power dissipation, SOT-23-5L	PD			250	mW	SOT-23-5L package	4
BAT pin current (absolute maximum)	Ibat			500	mA		4
PROG pin current (absolute maximum)	Iprog			800	µA		4
ESD capability, human body model	VESD			7000	V	Human body model	4
Storage temperature	Tstr	-65		125	°C		4
Operating ambient temperature	Topa	-40		85	°C		4

CAD (KiCad official)

Symbol: HX4054D
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)
3D model files: hx4054d-etched.step / hx4054d-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); hx4054d.step / hx4054d.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: HX hengjiaxing datasheet (10 pp, sha256 a4bfa99849e84592, retrieved 2026-10-18, tier: lcsc)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF