component
OB2004AZCPA-C
Public Made by Adomby adom
OB On Bright Elec AC-DC Controllers And Regulators, SOP-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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OB2004AZCPA-C
OB On Bright Elec · AC-DC Controllers And Regulators · SOP-8
OB2004AZCPA-C from OB On Bright Elec, in a SOP-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 | GND | power_in | Ground reference pin; the datasheet lists GND on pins 1 and 2 with no further electrical limits stated for this pin. |
| 2 | GND | power_in | Ground reference pin; the datasheet lists GND on pins 1 and 2 with no further electrical limits stated for this pin. |
| 3 | VDD | power_in | Power supply pin for the IC; recommended supply is 4.2V to 5V, absolute maximum is -0.6V to 8V, and the UVLO entry/exit thresholds are 3.0V (off) and 2.4V (on). |
| 4 | Vin | power_in | System output voltage detection pin; absolute maximum range is -0.6V to 24V, and SR is disabled when Vin is at about 1.9V to 2.3V. |
| 5 | Drain | input | SR MOSFET drain pin, connected to the secondary-side winding of the transformer; absolute maximum range is -2.5V to 60V. |
| 6 | Drain | input | SR MOSFET drain pin, connected to the secondary-side winding of the transformer; absolute maximum range is -2.5V to 60V. |
| 7 | Drain | input | SR MOSFET drain pin, connected to the secondary-side winding of the transformer; absolute maximum range is -2.5V to 60V. |
| 8 | Drain | input | SR MOSFET drain pin, connected to the secondary-side winding of the transformer; absolute maximum range is -2.5V to 60V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | OB On Bright Elec |
| Package | SOP-8 |
| Category | Power Management (PMIC) |
| 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 |
|---|---|---|---|---|---|---|---|
| VDD Supply Voltage (recommended operating range) | VDD | 4.2 | 5 | V | 2 | ||
| Vin pin voltage (absolute maximum) | Vin | -0.6 | 24 | V | 2 | ||
| VDD pin voltage (absolute maximum) | VDD | -0.6 | 8 | V | 2 | ||
| Drain pin voltage (absolute maximum) | Drain | -2.5 | 60 | V | Note 2: -2.5V applies to minimum duty cycle during normal operation only | 2 | |
| Operating Junction Temperature | TJ | -40 | 150 | ℃ | 2 | ||
| Operating Ambient Temperature | TA | -20 | 85 | ℃ | 2 | ||
| Storage Temperature | Tstg | -55 | 150 | ℃ | 2 | ||
| Lead Temperature (Soldering) | 260 | ℃ | Soldering, 10 secs | 2 | |||
| Package thermal resistance junction-to-ambient, SOP8 | RJA | 85 | ℃/W | 2 | |||
| Operation current | I_VDD_operation | 1.2 | 1.6 | mA | Frequency@VDrain=65KHz, VDD=5V, 1nF Cap load at GATE. | 5 | |
| Operation current | I_VDD_operation | 0.6 | 0.8 | mA | Frequency@VDrain=2KHz, VDD=5V, No load at GATE. | 5 | |
| VDD regulation voltage (min) | VDD_regulation_min | 4.2 | V | Frequency@VDrain=50KHz, Duty=25%, High level @VDrain=20V Vin<4.5V | 5 | ||
| VDD regulation voltage (max) | VDD_regulation_max | 5 | V | Frequency@VDrain=50KHz, Duty=25%, High level @VDrain=20V Vin>5.5V | 5 | ||
| VDD Under Voltage Lockout Entry | UVLO(OFF) | 3 | V | 5 | |||
| VDD Under Voltage Lockout Exit (Recovery) | UVLO(ON) | 2.4 | V | 5 | |||
| SR MOSFET turn on threshold voltage detection at VDrain | Vth_SR_act | -150 | -200 | -250 | mV | 5 | |
| Adjustable SR MOSFET turn off threshold voltage detection at VDrain | Vth_SR_deact | -1 | mV | 5 | |||
| SR MOSFET fast path turn-on propagation delay | Tdelay_on | 70 | ns | 5 | |||
| SR MOSFET slow path turn-on propagation delay | Tdelay_on | 200 | ns | 5 | |||
| SR MOSFET turn-off propagation delay | Tdelay_off | 75 | ns | 5 | |||
| Voltage level at Vin when SR is disable | Vin_sr_disable | 1.9 | 2.1 | 2.3 | V | 5 | |
| Prediction ratio (no sub-harmonic condition) | Rpre | 63 | 66 | 69 | % | No sub-harmonic condition | 5 |
| Prediction ratio (with sub-harmonic condition) | Rpre | 12 | 15 | 18 | % | With sub-harmonic condition | 5 |
| Maximum SR turn-on time | Tsr_on_max | 35 | 40 | 45 | us | 5 | |
| Maximum SR turn-off dead time | Tdt_off_max | 0.8 | us | 5 |
CAD (KiCad official)
- Symbol:
OB2004AZCPA-C - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
ob2004azcpa-c-etched.step/ob2004azcpa-c-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ob2004azcpa-c.step/ob2004azcpa-c.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: OB On Bright Elec datasheet (10 pp, sha256
829fb8395bba193a, retrieved 2026-10-19, 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).