component
R5478N101CD-TR-FF
Public Made by Adomby adom
Ricoh Elec Devices Battery Management, SOT-23-6. 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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R5478N101CD-TR-FF
Ricoh Elec Devices · Battery Management · SOT-23-6
R5478N101CD-TR-FF from Ricoh Elec Devices, in a SOT-23-6. 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 | DOUT | output | Output of the over-discharge (and excess discharge-current) detector, CMOS output, with a voltage range of VSS -0.3 V to VDD +0.3 V. |
| 2 | V- | power_in | Charger negative input pin, with an input voltage range of VDD -30 V to VDD +0.3 V. |
| 3 | COUT | output | Output of the over-charge detection, CMOS output, with an output voltage range of VDD -30 V to VDD +0.3 V. |
| 4 | NC | unconnected | No internal connection. |
| 5 | VDD | power_in | Power supply pin and substrate voltage level of the IC, with an absolute maximum supply voltage of -0.3 V to 12 V. |
| 6 | VSS | power_in | Ground pin for the IC (VSS = 0 V reference). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Ricoh Elec Devices |
| Package | SOT-23-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |
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 (VDD) | VDD | -0.3 | 12 | V | VSS=0V | 5 | |
| V- input voltage (V- pin) | V- | -30 | 0.3 | V | Referenced to VDD: printed as VDD -30 to VDD +0.3 V | 5 | |
| Output voltage COUT pin | VCOUT | -30 | 0.3 | V | COUT pin; printed as VDD -30 to VDD +0.3 V (referenced to VDD) | 5 | |
| Output voltage DOUT pin | VDOUT | -0.3 | 0.3 | V | DOUT pin; printed as VSS -0.3 to VDD +0.3 V (min referenced to VSS, max referenced to VDD) | 5 | |
| Power dissipation | PD | 150 | mW | 5 | |||
| Operating temperature range | Topt | -40 | 85 | °C | 5 | ||
| Storage temperature range | Tstg | -55 | 125 | °C | 5 | ||
| Operating input voltage | VDD1 | 1.5 | 5 | V | Voltage defined as VDD-VSS; min/max assigned from the two printed values (column alignment inferred) | 7 | |
| Recommended R1 value | R1 | 1 | kΩ | Application hint: recommended R1 value is less than 1kΩ | 16 | ||
| Total R1+R2 | R1+R2 | 1 | kΩ | Application hint: total R1+R2 should be equal or more than 1kΩ | 16 | ||
| Recommended R2 value | R2 | 10 | kΩ | Application hint: recommended R2 value is equal or less than 10kΩ | 16 | ||
| Stabilization capacitor C1 | C1 | 0.001 | 0.01 | uF | Application hint: C1 in the range from 0.001uF to 0.01uF | 16 | |
| Minimum operating voltage for 0V charging | Vst | 1.8 | V | Voltage defined as VDD-V-, VDD-VSS=0V; single printed value, placed in max | 7 | ||
| Output delay of over-charge | tVDET1 | 0.7 | 1 | 1.3 | s | VDD=3.6V to 4.4V | 7 |
| Output delay of release from over-charge | tVREL1 | 11 | 16 | 21 | ms | VDD=4.5V to 3.6V | 7 |
| Output delay of over-discharge | tVDET2 | 14 | 20 | 26 | ms | VDD=3.6V to 2.2V | 7 |
| Output delay of release from over-discharge | tVREL2 | 0.7 | 1.2 | 1.7 | ms | VDD=3V V-=3V to 0V | 7 |
| Output delay of excess discharge-current | tVDET3 | 8 | 12 | 16 | ms | VDD=3.0V, V-=0V to 0.4V | 7 |
| Output delay of release from excess discharge-current | tVREL3 | 0.7 | 1.2 | 1.7 | ms | VDD=3.0V, V-=3V to 0V | 7 |
| Short protection voltage | Vshort | 0.5 | 0.75 | 0.95 | V | VDD=3.0V | 7 |
| Output delay of short protection | Tshort | 230 | 300 | 500 | µs | VDD=3.0V, V-=0V to 3V | 7 |
| Reset resistance for excess discharge-current protection | Rshort | 25 | 50 | 75 | kΩ | VDD=3.6V, V-=1V | 7 |
| Delay shortening mode input voltage | VDS | -2.6 | -2 | -1.4 | V | VDD=4.4V | 7 |
| Nch ON voltage of COUT | VOL1 | 0.4 | 0.5 | V | Iol=50µA, VDD=4.5V; two printed values assigned typ and max (column alignment inferred) | 7 | |
| Pch ON voltage of COUT | VOH1 | 3.4 | 3.7 | V | Ioh=-50µA, VDD=3.9V; two printed values assigned min and max (column alignment inferred) | 7 | |
| Nch ON voltage of DOUT | VOL2 | 0.2 | 0.5 | V | Iol=50µA, VDD=2.0V; two printed values assigned typ and max (column alignment inferred) | 7 | |
| Pch ON voltage of DOUT | VOH2 | 3.4 | 3.7 | V | Ioh=-50µA, VDD=3.9V; two printed values assigned min and max (column alignment inferred) | 7 | |
| Supply current | IDD | 3 | 7 | µA | VDD=3.9V, V- =0V | 7 | |
| Standby current | IS | 1.2 | 2 | µA | VDD=2.0V | 7 | |
| Released voltage from over-discharge | VREL2 | 3 | V | Detect rising edge of supply voltage; min VREL2×0.975, max VREL2×1.025 (symbolic, not computed); typ = VREL2 3.000 V from p.26 table | 7 | ||
| Excess discharge-current threshold | VDET3 | 0.2 | V | Detect rising edge of 'V-' pin voltage; min VDET3-0.015 V, max VDET3+0.015 V (symbolic, not computed); typ = VDET3 0.200 V from p.26 table | 7 |
CAD (KiCad official)
- Symbol:
R5478N101CD-TR-FF - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
r5478n101cd-tr-ff-etched.step/r5478n101cd-tr-ff-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);r5478n101cd-tr-ff.step/r5478n101cd-tr-ff.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Ricoh Elec Devices datasheet (27 pp, sha256
e02e7c3c39eec61e, retrieved 2026-10-17, 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).