component
MP3398HGS-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.
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
markdownMP3398HGS-Z
Monolithic Power Systems · LED Drivers · SOIC-16
MP3398HGS-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 | output | LED string 4 current input, the open-drain output of an internal dimming control switch, connected to the string 4 cathode. |
| 2 | ISET | input | LED current setting pin; a current-setting resistor from ISET to GND sets the ILED for each string (RISET of 12kΩ gives 100mA) and ISET must not be left open. |
| 3 | OVP | input | Output over-voltage protection input; a resistor divider from the output sets the OVP threshold (VOVP typically 2V, 1.9V to 2.1V). |
| 4 | OSC | input | Switching frequency setting pin; a resistor ROSC from OSC to GND sets fSW, with 100kHz to 900kHz recommended. |
| 5 | EN | input | Enable control input; pull above 1.5V to turn the part on and below 0.6V to turn it off, and do not float the pin. |
| 6 | ISENSE | input | Current-sense input that senses the voltage across the external inductor current-sense resistor for peak current control and limits inductor current every cycle; connect to GND on cascaded slave ICs and do not float. |
| 7 | GATE | output | Power MOSFET driver output for the step-up converter that drives an external N-channel power MOSFET. |
| 8 | VCC | power_out | Internal 5.9V linear regulator output (5.5V to 6.3V) that powers the external MOSFET gate driver and internal control circuitry, to be bypassed to GND with a ceramic capacitor. |
| 9 | VIN | power_in | Supply input for the device, operating from 4.5V to 33V, which must be bypassed locally. |
| 10 | ADIM | input | Analog brightness control input with a 0V to 1.5V DC range for DC analog dimming, or a capacitor to GND as the filter for PWM-input analog dimming. |
| 11 | COMP | passive | Step-up converter compensation pin; connect a ceramic capacitor, or a resistor in series with a capacitor, from COMP to GND. |
| 12 | PWM | input | PWM brightness control input whose high level must exceed 1.5V and low level must be below 0.4V, and which is weakly pulled to GND internally when floating. |
| 13 | LED1 | output | LED string 1 current input, the open-drain output of an internal dimming control switch, connected to the string 1 cathode. |
| 14 | LED2 | output | LED string 2 current input, the open-drain output of an internal dimming control switch, connected to the string 2 cathode. |
| 15 | GND | power_in | Ground reference pin for the device. |
| 16 | LED3 | output | LED string 3 current input, the open-drain output of an internal dimming control switch, connected to the string 3 cathode. |
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 |
|---|---|---|---|---|---|---|---|
| Operating input voltage | VIN | 4.5 | 33 | V | 6 | ||
| LDO output voltage | VCC | 5.5 | 5.9 | 6.3 | V | 7V < VIN < 28V, 0 < IVCC < 10mA | 6 |
| VCC under-voltage lockout (UVLO) threshold | VCC_UVLO | 3.7 | 4 | 4.3 | V | Rising edge | 6 |
| Switching frequency | fSW | 400 | 500 | 600 | kHz | ROSC = 100kΩ | 6 |
| Cycle-by-cycle ISENSE current limit | 480 | 540 | 600 | mV | 6 | ||
| Latch-off current limit | 720 | 800 | 880 | mV | 6 | ||
| ADIM input DC range | VADIM | 0 | 1.5 | V | 6 | ||
| Internal resistor on ADIM | RADIM | 70 | 100 | 130 | kΩ | 6 | |
| ISET voltage | VISET | 1.46 | 1.5 | 1.54 | V | 6 | |
| LEDx average current | ILEDx | 97 | 100 | 103 | mA | RISET = 12kΩ | 6 |
| Current matching | 1 | 1.5 | % | ILED = 100mA | 6 | ||
| Over-voltage protection (OVP) threshold | VOVP | 1.9 | 2 | 2.1 | V | 6 | |
| LEDx over-voltage (OV) threshold | VLEDx_OV | 7 | 8 | 9 | V | 6 | |
| Quiescent supply current | IQ | 3.85 | 4.5 | mA | VIN = 12V, no switching | 6 | |
| Shutdown supply current | IST | 1 | μA | VEN = 0V, VIN = 12V | 6 | ||
| VCC UVLO hysteresis | 350 | mV | 6 | ||||
| EN high voltage | VEN_HIGH | 1.5 | V | VEN rising | 6 | ||
| EN low voltage | VEN_LOW | 0.6 | V | VEN falling | 6 | ||
| Gate driver source impedance | 4 | Ω | VCC = 5.9V, VGATE = 5.9V | 6 | |||
| Gate driver sink impedance | 2.5 | Ω | VCC = 5.9V, IGATE = 10mA | 6 | |||
| Maximum duty cycle | DMAX | 90 | % | ROSC = 100kΩ | 6 | ||
| COMP source current limit | ICOMP_SOLI | 30 | μA | 1V < COMP < 2.9V | 6 | ||
| COMP sink current limit | ICOMP_SILI | 18 | μA | 1V < COMP < 2.9V | 6 | ||
| COMP transconductance | GCOMP | 120 | μA/V | ΔICOMP = ±10µA | 6 | ||
| PWM input low threshold | VPWM_LO | 0.4 | V | VPWM falling | 6 | ||
| PWM input high threshold | VPWM_HI | 1.5 | V | VPWM rising | 6 | ||
| LEDx regulation voltage | 360 | mV | ILED = 100mA | 6 | |||
| LEDx regulation voltage | 285 | mV | ILED = 60mA | 6 | |||
| OVP UVLO threshold | VOVP_UVLO | 55 | mV | Step-up converter fails | 6 | ||
| LEDx UVLO threshold | VLEDx_UVLO | 200 | mV | 6 | |||
| Thermal protection threshold | TST | 150 | °C | 6 | |||
| Thermal protection hysteresis | 25 | °C | 6 | ||||
| Supply voltage (VIN) absolute maximum | VIN | -0.3 | 40 | V | 5 | ||
| LED string pins voltage | VLED1 to VLED4 | -0.3 | 80 | V | 5 | ||
| All other pins voltage | -0.3 | 6.5 | V | 5 | |||
| Junction temperature | TJ | 150 | °C | 5 | |||
| Storage temperature | TSTG | -60 | 150 | °C | 5 | ||
| Supply voltage (VIN) recommended | VIN | 4.5 | 33 | V | 5 | ||
| Max LED current | ILED_MAX | 400 | mA | 5 | |||
| Operating junction temperature | TJ | -40 | 125 | °C | 5 | ||
| Thermal resistance junction-to-ambient | θJA | 80 | °C/W | SOIC-16, JESD51-7, 4-layer PCB | 5 | ||
| Thermal resistance junction-to-case | θJC | 35 | °C/W | SOIC-16, JESD51-7, 4-layer PCB | 5 |
CAD (KiCad official)
- Symbol:
MP3398HGS-Z - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files:
mp3398hgs-z-etched.step/mp3398hgs-z-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mp3398hgs-z.step/mp3398hgs-z.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Monolithic Power Systems datasheet (18 pp, sha256
5a9b7d4024bb3b50, 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).