component
ADP2291ARMZ-R7
Public Made by Adomby adom
Analog Devices Global Sourcing Parts, MSOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
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ADP2291ARMZ-R7
Analog Devices · Global Sourcing Parts · MSOP-8
ADP2291ARMZ-R7 from Analog Devices, in a MSOP-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 | DRV | output | Base driver output that controls the base of an external PNP pass transistor, with a maximum base drive current of 40 mA; pulling DRV below ground while VIN is applied can cause permanent damage. |
| 2 | GND | power_in | Ground reference for the device, to which all voltages not otherwise specified are referenced. |
| 3 | BAT | input | Battery voltage sense input that sets the end-of-charge voltage of 4.2 V, specified at 4.158 V to 4.242 V over 0°C to +50°C, and that has a 5 V overshoot protection threshold. |
| 4 | CS | input | Current sense resistor negative input, where the sense voltage VRS = VIN - VCS is regulated to 150 mV nominal in fast charge (adjustable down to 50 mV with ADJ). |
| 5 | ADJ | input | Charging current adjust and charger shutdown input, internally pulled up through 100 kΩ to 3 V, where pulling it below 0.4 V puts the charger into shutdown mode. |
| 6 | IN | power_in | Power input and current sense resistor positive input, operating over a 4.5 V to 12 V input range with an absolute maximum rating of -0.3 V to +13.5 V. |
| 7 | TIMER | input | Timer programming input, where an external capacitor CTIMER sets the charge timeouts and connecting TIMER to ground disables the timers. |
| 8 | CHG | output | LED charge status indicator implemented as an open-collector output that sinks current while charging, with a low output voltage of 0.45 V at 20 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | MSOP-8 |
| Category | Global Sourcing Parts |
| Pins | 8 |
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 | 4.5 | 12 | V | 3 | |||
| Voltage accuracy, end-of-charge | VBAT, EOC | 4.158 | 4.2 | 4.242 | V | TA = 0°C to +50°C; VIN = 4.5 V to 12 V; VIN, VCS = VRS/10 | 3 |
| Current draw, fast charge/precharge/end-of-charge modes | IIN | 6 | 9 | mA | Fast charge/precharge/end-of-charge modes | 3 | |
| Current draw, timeout/shutdown/battery fault | IIN | 1.4 | 1.8 | mA | Timeout/shutdown/battery fault | 3 | |
| Current draw, battery fault/shutdown mode | 0.1 | 1 | µA | VIN = 4.5 V to 12 V | 3 | ||
| Sense voltage setpoint (fast charge), RADJ open | VRS | 140 | 150 | 160 | mV | VIN, VCS, RADJ = open; VIN = 4.5 V to 12 V; VBAT = 3.6 V | 3 |
| Sense voltage setpoint (fast charge), RADJ = 100 kΩ | VRS | 40 | 50 | 60 | mV | VIN, VCS, RADJ = 100 kΩ; VIN = 4.5 V to 12 V; VBAT = 3.6 V | 3 |
| Sense voltage setpoint (precharge), RADJ open | VRS | 10 | 15 | 20 | mV | VIN, VCS, RADJ = open; VIN = 4.5 V to 12 V; VBAT = 2 V | 3 |
| Sense voltage setpoint (precharge), RADJ = 100 kΩ | VRS | 5 | 10 | 15 | mV | VIN, VCS, RADJ = 100 kΩ; VIN = 4.5 V to 12 V; VBAT = 2 V | 3 |
| BAT precharge threshold | VBAT | 2.65 | 2.85 | V | VBAT rising | 3 | |
| ADJ shutdown threshold | VADJ | 0.3 | 0.45 | V | VADJ falling, VIN = 4.5 V | 3 | |
| VIN power-down threshold | VIN | 3.6 | 4 | V | VIN rising | 3 | |
| VIN_Good comparator threshold (VIN > VBAT) | 125 | 170 | 220 | mV | VIN rising | 3 | |
| EOC comparator current threshold, RADJ open | VIN, VCS | 7 | 10 | 13 | % | VIN, VCS falling, RADJ = open, relative to VRS | 3 |
| EOC comparator current threshold, RADJ = 100 kΩ | VIN, VCS | 6 | 10 | 16 | % | VIN, VCS falling, RADJ = 100 kΩ, relative to VRS | 3 |
| Charge/discharge timer current | 21 | 24 | 27 | µA | 4 | ||
| High-low threshold delta | 750 | 850 | mV | Guaranteed by design; not tested in production | 4 | ||
| Overshoot protection BAT threshold | BAT | 4.7 | 5 | 5.3 | V | 4 | |
| CHG output leakage current | ICHG | 0.1 | 1 | µA | VCHG = 5 V | 4 | |
| IN, DRV, CS, CHG voltage range | -0.3 | 13.5 | V | to GND | 5 | ||
| BAT, ADJ, TIMER voltage range | -0.3 | V | to GND; upper limit printed as (VIN + 0.3 V), not a numeric value | 5 | |||
| Operating ambient temperature | TA | -40 | 85 | °C | 5 | ||
| Operating junction temperature | TJ | -40 | 125 | °C | 5 | ||
| Storage temperature range | -65 | 150 | °C | 5 | |||
| Lead temperature soldering | 300 | °C | 10 sec | 5 | |||
| Thermal resistance, junction-to-ambient, 2-layer MSOP-8 | θJA | 220 | ºC/W | 2-layer MSOP-8 | 5 | ||
| Thermal resistance, junction-to-ambient, 4-layer MSOP-8 | θJA | 158 | ºC/W | 4-layer MSOP-8 | 5 |
CAD (KiCad official)
- Symbol:
ADP2291ARMZ-R7 - Footprint:
Package_SO:MSOP-8_3x3mm_P0.65mm - 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files:
adp2291armz-r7-etched.step/adp2291armz-r7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);adp2291armz-r7.step/adp2291armz-r7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (20 pp, sha256
eb2775301cc432ce, retrieved 2026-10-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-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).