component
XT4076Y2ASR-G
Public Made by Adomby adom
NATLINEAR Battery Management ICs, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownXT4076Y2ASR-G
NATLINEAR · Battery Management ICs · ESOP-8
XT4076Y2ASR-G from NATLINEAR, in a ESOP-8. 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 | NC | unconnected | No connect (empty pin). |
| 2 | PROG | bidirectional | Charge current programming, monitoring and shutdown pin: a 1% resistor to ground sets IBAT = (VPROG/RPROG)×960, pin sits at 1V in constant-current mode, shutdown above 1.21V when resistor is removed (floats at about 2.4V). |
| 3 | GND | power_in | Ground. |
| 4 | VIN | power_in | Positive input supply of 4.25V to 6.5V, requires at least 1µF bypass capacitor; charger enters shutdown when VCC is within 30mV of BAT voltage. |
| 5 | BAT | power_out | Battery positive connection that supplies charge current and the constant float voltage; current is below 2µA in undervoltage lockout or sleep mode. |
| 6 | DONE | output | Open-drain charge-complete indicator pulled low by an internal switch when charging has finished, otherwise high impedance. |
| 7 | CHRG | output | Open-drain charging indicator pulled low by an internal switch while the battery is charging, otherwise high impedance. |
| 8 | NC | unconnected | No connect (empty pin). |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | NATLINEAR |
| Package | ESOP-8 |
| Category | Power Supply Chip |
| Pins | 9 |
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 | Vcc | 4.25 | 6.5 | V | 5 | ||
| Input current, charge mode | Icc | 70 | 200 | µA | Charge mode, RPROG=10K | 5 | |
| Input current, standby mode | Icc | 25 | 100 | µA | Standby mode | 5 | |
| Input current, shutdown mode | Icc | 12 | 50 | µA | Shutdown mode (RPROG not connected, Vcc<Vbat or Vcc<Vuv) | 5 | |
| Output control voltage | Vfloat | 4.16 | 4.2 | 4.25 | V | 0≤TA≤85℃, IBAT = 40mA | 5 |
| BAT pin current, current mode | Ibat | 86 | 96 | 106 | mA | RPROG =10k,Current mode | 5 |
| BAT pin current, current mode | Ibat | 882 | 960 | 1038 | mA | RPROG=1k,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 | 10 | 20 | µA | Shutdown mode | 5 | |
| BAT pin current, sleep mode | Ibat | 10 | 20 | µA | Sleep mode,Vcc=0V | 5 | |
| Trickle charge current | Itrikl | 76 | 96 | 116 | mA | Vbat<Vtrikl, RPROG =2K | 5 |
| Trickle charge threshold voltage | Vtrikl | 2.75 | 2.85 | 2.95 | V | RPROG=10K，Vbat Rising | 5 |
| Trickle charge hysteresis voltage | Vtrhys | 60 | 80 | 110 | mV | RPROG =10k | 5 |
| Undervoltage lockout threshold | Vuv | 3.65 | 3.8 | 3.95 | V | From Vcc low to high | 5 |
| Undervoltage lockout hysteresis | Vuvhys | 30 | 70 | 110 | mV | 5 | |
| Manual shutdown threshold, rising | Vmsd | 1.15 | 1.2 | 1.25 | V | PROG pin rising | 5 |
| Manual shutdown threshold, falling | Vmsd | 0.8 | 1 | 1.2 | V | PROG pin falling | 5 |
| Vcc-Vbat shutdown threshold, low to high | Vasd | 70 | 100 | 140 | mV | Vcc from low to high | 5 |
| Vcc-Vbat shutdown threshold, high to low | Vasd | 5 | 30 | 50 | mV | Vcc from high to low | 5 |
| C/10 termination threshold current | Iterm | 8 | 10 | 12 | mA | RPROG =10k | 6 |
| C/10 termination threshold current | Iterm | 40 | 50 | 65 | mA | RPROG =2k | 6 |
| PROG pin voltage | Vprog | 0.93 | 1 | 1.07 | V | RPROG =10k, Current mode | 6 |
| DONE pin output low voltage | Vdone | 0.35 | 0.6 | µA | Idone=5mA | 6 | |
| CHRG pin output low voltage | Vchrg | 0.35 | 0.6 | V | Ichrg=5mA | 6 | |
| Recharge hysteresis voltage | ΔVrecg | 80 | 150 | mV | VFLOAT - VRECHRG | 6 | |
| Input voltage | Vcc | -0.3 | 7 | V | VSS-0.3 to VSS+7 | 5 | |
| PROG pin voltage | Vprog | -0.3 | V | VSS-0.3 to Vcc+0.3 | 5 | ||
| BAT pin voltage | Vbat | -0.3 | 6 | V | Vss-0.3 to 6 | 5 | |
| DONE pin voltage | Vdone | -0.3 | 7 | V | VSS-0.3 to VSS+7 | 5 | |
| CHRG pin voltage | Vchrg | -0.3 | 7 | V | VSS-0.3 to VSS+7 | 5 | |
| BAT pin current | Ibat | 1500 | mA | 5 | |||
| PROG pin current | Iprog | 1500 | µA | 5 | |||
| Operating ambient temperature | Topa | -40 | 85 | °C | 5 | ||
| Storage temperature | Tstr | -65 | 125 | °C | 5 |
CAD (KiCad official)
- Symbol:
XT4076Y2ASR-G - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
xt4076y2asr-g-etched.step/xt4076y2asr-g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);xt4076y2asr-g.step/xt4076y2asr-g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: NATLINEAR datasheet (12 pp, sha256
1047025d46411ad2, retrieved 2026-10-22, 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, primaryclaude-sonnet-5-5(text), consensusclaude-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).