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MAX811RDB4RG
Public Made by Adomby adom
HANSCHIP semiconductor Supervisor And Reset ICs, SOT-143. 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
markdownMAX811RDB4RG
HANSCHIP semiconductor · Supervisor And Reset ICs · SOT-143
MAX811RDB4RG from HANSCHIP semiconductor, in a SOT-143. 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 | GND | power_in | Negative supply terminal (ground) of the device; the datasheet gives no further electrical limits for this pin. |
| 2 | VRESET | output | Reset output that goes low when VCC is below the threshold Vth or when the enable input MR is low, and goes high after Trp (500 ms typical) once VCC rises above Vth or MR returns high; VOL is at most 0.5 V at 3.2 mA sink and VOH is at least 0.8 VCC at 500 µA source. |
| 3 | MR | input | Active-low enable control input; VIH is at least 0.7 VCC and VIL is at most 0.2 VCC, and the enable low pulse must be at least 10 µs (tMR). |
| 4 | VCC | power_in | Positive supply input with an operating range of 1.0 V to 6.0 V and an absolute maximum of 6.5 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HANSCHIP semiconductor |
| Package | SOT-143 |
| Category | Power Management (PMIC) |
| Pins | 4 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage operating range | VCC | 1 | 6 | V | 4 | ||
| Static current | ICCH | 1 | 5 | uA | VCC=6V,VMR=VCC,No Load | 4 | |
| Standby current | ICCL | 1 | 32 | uA | VCC=6V,VMR=GND,No Load | 4 | |
| Enable source current | IMR | 1 | 25 | uA | VCC=6V,VMR=GND,No Load | 4 | |
| Output reset time | Trp | 85 | 500 | 900 | ms | MAX811Z/R/S/T: VCC=VMR=0 to 3.5V or VMR=0to3.5V, VCC=3.5V, No Load | 4 |
| Output low voltage | VOL | 0.5 | V | VCC=Vthmin, ISINK=3.2mA | 4 | ||
| Enable input low voltage | VMRL | 0 | V | VCC=6V,VRESET=GND, No Load | 4 | ||
| Enable minimum pulse width | tMR | 10 | us | 4 | |||
| Threshold temperature coefficient | Vth*T | -200 | 200 | ppm/℃ | -20℃≤Ta≤60℃ | 4 | |
| Reset voltage accuracy | Vth | -2.5 | 2.5 | % | Product feature: high-precision reset voltage ±2.5% | 1 | |
| Reset output voltage (absolute maximum) | VRESET | -0.3 | V | 3 | |||
| Supply voltage (absolute maximum) | VCC | 6.5 | V | 3 | |||
| Power dissipation | PD | 200 | mW | SOT-143 | 3 | ||
| Operating temperature range | TA | -20 | 70 | ℃ | 3 | ||
| Storage temperature range | TS | -50 | 125 | ℃ | 3 | ||
| Soldering temperature | TW | 245 | ℃ | 10s | 3 |
CAD (KiCad official)
- Symbol:
MAX811RDB4RG - Footprint:
Package_TO_SOT_SMD:SOT-143 - 3D model: SOT-143 (KiCad packages3D, STEP)
- 3D model files:
max811rdb4rg-etched.step/max811rdb4rg-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);max811rdb4rg.step/max811rdb4rg.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HANSCHIP semiconductor datasheet (7 pp, sha256
9b2eca06a4fb5a54, retrieved 2026-10-17, 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-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).