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AAP2154OIR1

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Eutech Microelectronics Battery Management ICs, TSOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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AAP2154OIR1

Eutech Microelectronics · Battery Management ICs · TSOT-23-5

AAP2154OIR1 from Eutech Microelectronics, in a TSOT-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 pulled low by an internal N-channel MOSFET while charging, weak ~12µA pull-down when charge is complete (AC present), and high impedance in undervoltage lockout.
2 GND power_in Ground.
3 BAT power_out Charge current output that provides charge current to the battery and regulates the final float voltage to 4.2V.
4 VCC power_in Positive input supply voltage of 4.35V to 6.5V, to be bypassed with at least a 1µF capacitor.
5 PROG bidirectional Charge current program, charge current monitor and shutdown pin; a 1% resistor to ground sets the charge current, the pin servos to 1V in constant-current mode, and floating it (1.94V threshold, clamped ~2.4V) shuts down the charger.

Key specifications

Parameter Value
Manufacturer Eutech Microelectronics
Package TSOT-23-5
Category Power Management ICs
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 Supply Voltage VCC 4.35 6.5 V 5
Input Supply Current, Charge Mode ICC 350 2000 µA Charge Mode (Note 4), RPROG = 10k 5
Input Supply Current, Standby Mode ICC 200 500 µA Standby Mode (Charge Terminated) 5
Input Supply Current, Shutdown Mode ICC 25 50 µA Shutdown Mode (RPROG Not Connected, VCC < VBAT, or VCC < VUV) 5
Regulated Output (Float) Voltage VFLOAT 4.158 4.2 4.242 V 0 ≤ TA ≤ 85, IBAT = 40mA 5
BAT Pin Current, RPROG = 10k IBAT 100 110 120 mA RPROG = 10k, Current Mode 5
BAT Pin Current, RPROG = 2k IBAT 475 510 545 mA RPROG = 2k, Current Mode 5
BAT Pin Current, Standby IBAT -2.5 -6 µA Standby Mode, VBAT = 4.2V 5
BAT Pin Current, Shutdown IBAT 1 2 µA Shutdown Mode (RPROG Not Connected); printed ± 1 typ, ± 2 max 5
BAT Pin Current, Sleep IBAT 1 2 µA Sleep Mode, VCC = 0V; printed ± 1 typ, ± 2 max 5
Trickle Charge Current ITRIKL 20 50 70 mA VBAT < VTRIKL, RPROG = 2k 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 RPROG = 10k 5
VCC Undervoltage Lockout Threshold VUV 3.55 3.7 3.85 V From VCC Low to High 5
VCC Undervoltage Lockout Hysteresis VUVHYS 150 200 300 mV 5
Manual Shutdown Threshold Voltage VMSD 1.85 1.94 2.05 V PROG Pin Rising 5
VCC, VBAT Lockout Threshold Voltage, rising VASD 70 100 140 mV VCC from Low to High 5
VCC, VBAT Lockout Threshold Voltage, falling VASD 5 30 50 mV VCC from High to Low 5
C/10 Termination Current Threshold, RPROG = 10k ITERM 0.085 0.1 0.115 mA/mA RPROG = 10k (Note 5) 5
C/10 Termination Current Threshold, RPROG = 2k ITERM 0.085 0.1 0.115 mA/mA RPROG = 2k 5
PROG Pin Voltage VPROG 0.96 1.03 1.1 V RPROG = 10k, Current Mode 5
CHRG Pin Weak Pull-Down Current ICHRG 7 12 20 µA VCHRG = 5V 5
CHRG Pin Output Low Voltage VCHRG 0.35 0.6 V ICHRG = 5mA 6
Recharge Battery Threshold Voltage ΔVRECHRG 100 150 200 mV VFLOAT-VRECHRG 6
Recharge Comparator Filter Time tRECHARGE 0.75 2 4.5 ms VBAT High to Low 6
Termination Comparator Filter Time tTERM 400 1000 2500 µs IBAT Falling Below ICHG/10 6
Junction Temperature in Constant Temperature Mode TLIM 120 °C 6
Power FET ON Resistance RON 600 mΩ Between VCC and BAT 6
Soft-Start Time tSS 100 µs IBAT = 0 to IBAT = 1000V/RPROG 6
PROG Pin Pull-Up Current IPROG 3 µA 6
Input Supply Voltage (VCC) VCC -0.3 6.5 V 5
BAT Pin Voltage BAT -0.3 6.5 V 5
CHRG Pin Voltage CHRG -0.3 6.5 V 5
BAT Pin Current IBAT 800 mA 5
PROG Pin Current IPROG 800 µA 5
Maximum Junction Temperature TJ 125 °C 5
Operating Ambient Temperature Range TA -40 85 °C Note 2 5
Storage Temperature Range Tstg -65 125 °C 5
Lead Temperature (soldering, 10s) 300 °C 10s 5
Operating Temperature Range (ordering) -20 70 °C AAP2154OIR1 4

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts copper copper lead frame, through the package leads, (especially 14

CAD (KiCad official)

  • Symbol: AAP2154OIR1
  • Footprint: Package_TO_SOT_SMD:TSOT-23-5
  • 3D model: TSOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: aap2154oir1-etched.step / aap2154oir1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); aap2154oir1.step / aap2154oir1.glb are the bare package body.

Provenance

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

  • Datasheet: Eutech Microelectronics datasheet (16 pp, sha256 d1039d6f4bad7e5c, retrieved 2026-10-23, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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