component
MP3398EGS-Z
Public Made by Adomby adom
Monolithic Power Systems LED Drivers, SOIC-16. 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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MP3398EGS-Z
Monolithic Power Systems · LED Drivers · SOIC-16
MP3398EGS-Z from Monolithic Power Systems, in a SOIC-16. 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 | LED4 | input | LED string 4 current input, the open-drain output of an internal dimming control switch; connect the LED string 4 cathode to LED4 (80V abs max rating). |
| 2 | ISET | passive | LED current set pin; tie a current-setting resistor from ISET to ground to program the current in each LED string, and do not leave it open. |
| 3 | OVP | input | Output over-voltage protection input; connect a resistor divider from the output to OVP to program the OVP threshold (2.0V typ, 1.9V to 2.1V). |
| 4 | OSC | passive | Switching frequency set; connect a resistor between OSC and GND to set the step-up converter switching frequency (ROSC = 100kΩ gives 382kHz). |
| 5 | EN | input | Enable control input; a voltage greater than 1.5V turns the part on, a voltage less than 0.6V turns it off, and it must not be floated. |
| 6 | ISENSE | input | Current sense input that senses the voltage across the inductor current-sensing resistor for peak-current-mode control and limits inductor current each cycle; tie to GND on a slave IC and do not float. |
| 7 | GATE | output | Step-up converter power switch driver output that drives the external power N-channel MOSFET. |
| 8 | VCC | power_out | Internal 5.9V linear regulator output that supplies the external MOSFET gate driver and internal control circuitry; bypass to GND with a ceramic capacitor. |
| 9 | VIN | power_in | Supply input (4.5V to 33V operating range) that must be bypassed locally. |
| 10 | ADIM | input | Analog brightness control input where LED current amplitude is set by the duty cycle of the PWM signal applied, with an internal 10MΩ and 100pF R-C filter; high level above 1.5V, low level below 0.4V, and pull high (1.5V<VADIM<=5V) if unused. |
| 11 | COMP | passive | Step-up converter compensation pin; connect a ceramic capacitor or a resistor and capacitor from COMP to GND. |
| 12 | PWM | input | PWM brightness control input where average LED current equals ISET x DDIM; high level above 1.5V, low level below 0.4V, weakly pulled to GND internally if floating, and pull high (1.5V<VPWM<=5V) if unused. |
| 13 | LED1 | input | LED string 1 current input, the open-drain output of an internal dimming control switch; connect the LED string 1 cathode to LED1 (80V abs max rating). |
| 14 | LED2 | input | LED string 2 current input, the open-drain output of an internal dimming control switch; connect the LED string 2 cathode to LED2 (80V abs max rating). |
| 15 | GND | power_in | Ground. |
| 16 | LED3 | input | LED string 3 current input, the open-drain output of an internal dimming control switch; connect the LED string 3 cathode to LED3 (80V abs max rating). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Monolithic Power Systems |
| Package | SOIC-16 |
| Category | LED Drivers |
| Pins | 16 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VIN supply voltage | VIN | -0.3 | 40 | V | 4 | ||
| VLED1 to VLED4 | VLED1-4 | -0.3 | 80 | V | 4 | ||
| All other pins | -0.3 | 6.5 | V | 4 | |||
| Junction temperature | TJ | 150 | °C | 4 | |||
| Lead temperature | 260 | °C | 4 | ||||
| Storage temperature | -60 | 150 | °C | 4 | |||
| Supply voltage | VIN | 4.5 | 33 | V | 4 | ||
| Max LED current | 400 | mA | 4 | ||||
| Operating junction temperature | TJ | -40 | 125 | °C | 4 | ||
| Thermal resistance junction-ambient SOIC-16 | θJA | 80 | °C/W | JESD51-7, 4-layer PCB | 4 | ||
| Thermal resistance junction-case SOIC-16 | θJC | 35 | °C/W | JESD51-7, 4-layer PCB | 4 | ||
| Operating input voltage | VIN | 4.5 | 33 | V | 5 | ||
| Supply current (quiescent) | IQ | 3.85 | 4.5 | mA | VIN = 12V, no switching | 5 | |
| Supply current (shutdown) | IST | 1 | μA | VEN = 0V, VIN = 12V | 5 | ||
| LDO output voltage | VCC | 5.5 | 5.9 | 6.3 | V | 7V < VIN < 28V, 0 < IVCC < 10mA | 5 |
| VCC UVLO threshold | VIN_UVLO | 3.7 | 4 | 4.3 | V | Rising edge | 5 |
| Switching frequency | fSW | 305 | 382 | 460 | kHz | ROSC = 100kΩ | 5 |
| OSC voltage | VOSC | 0.77 | 0.8 | 0.83 | V | ROSC =100kΩ, fSW = 382kHz | 5 |
| Cycle-by-cycle ISENSE current limit | 180 | 202 | 224 | mV | 5 | ||
| ISET voltage | VISET | 1.95 | 2 | 2.05 | V | 5 | |
| LEDX average current | ILED | 192 | 202 | 212 | mA | RISET = 100.8kΩ | 5 |
| OVP threshold | VOVP_OV | 1.9 | 2 | 2.1 | V | 6 | |
| LEDX over-voltage threshold | VLEDX_OV | 7.2 | 8 | 8.8 | V | 6 | |
| Maximum duty cycle | DMAX | 90 | % | ROSC = 100kΩ | 5 | ||
| Current matching | 2.3 | % | ILED = 200mA | 5 | |||
| LEDX regulation voltage | 430 | mV | ILED = 200mA | 5 | |||
| LEDX regulation voltage | 285 | mV | ILED = 60mA | 5 | |||
| Thermal protection threshold | TST | 130 | °C | 6 |
CAD (KiCad official)
- Symbol:
MP3398EGS-Z - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files:
mp3398egs-z-etched.step/mp3398egs-z-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mp3398egs-z.step/mp3398egs-z.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Monolithic Power Systems datasheet (19 pp, sha256
ff2c99b15549d08f, retrieved 2026-10-24, tier: lcsc) - 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).