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MP3398EGF-Z

Public Made by Adom

by adom

Monolithic Power Systems LED Drivers, TSSOP-16-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MP3398EGF-Z

Monolithic Power Systems · LED Drivers · TSSOP-16-EP

MP3398EGF-Z from Monolithic Power Systems, in a TSSOP-16-EP. 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 LED1 input LED string 1 current input, the open-drain output of an internal dimming control switch; connect the LED string 1 cathode here (80V abs max).
2 LED2 input LED string 2 current input, the open-drain output of an internal dimming control switch; connect the LED string 2 cathode here (80V abs max).
3 GND power_in Ground.
4 LED3 input LED string 3 current input, the open-drain output of an internal dimming control switch; connect the LED string 3 cathode here (80V abs max).
5 LED4 input LED string 4 current input, the open-drain output of an internal dimming control switch; connect the LED string 4 cathode here (80V abs max).
6 ISET passive LED current set; tie a current-setting resistor from ISET to ground to program the current in each LED string, and do not leave it open.
7 OVP input Output over-voltage protection input; connect a resistor divider from the output to OVP to program the OVP threshold (2.0V typical).
8 OSC passive Switching frequency set; connect a resistor between OSC and GND to set the step-up converter switching frequency (ROSC = 100kΩ gives 382kHz).
9 EN input Enable control input; above 1.5V turns the part on, below 0.6V turns it off, and it must not be floated.
10 ISENSE input Current sense input for peak-current-mode control and cycle-by-cycle inductor current limit (202mV typical); tie to GND on a slave IC in cascading and do not float.
11 GATE output Step-up converter power switch driver output that drives the external N-channel MOSFET.
12 VCC power_out Internal 5.9V linear regulator output powering the MOSFET gate driver and internal control circuitry; bypass to GND with a ceramic capacitor.
13 VIN power_in Supply input, 4.5V to 33V operating range; must be bypassed locally.
14 ADIM input Analog brightness control input where the PWM duty cycle sets LED current amplitude via an internal 10MΩ/100pF R-C filter; use >20kHz with high level above 1.5V and low level below 0.4V, or pull high (1.5V to 5V) if unused.
15 COMP passive Step-up converter compensation; connect a ceramic capacitor or a resistor and capacitor from COMP to GND.
16 PWM input PWM brightness control input chopping the LED current (high above 1.5V, low below 0.4V); weakly pulled to GND internally if floating, or pull high (1.5V to 5V) if PWM dimming is unused.
17 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Monolithic Power Systems
Package TSSOP-16-EP
Category LED Drivers
Pins 17

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 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
Current matching 2.3 % ILED = 200mA 5
Maximum duty cycle DMAX 90 % ROSC = 100kΩ 5
VCC UVLO hysteresis 350 mV 5
EN high voltage VEN_HIGH 1.5 V VEN rising 5
EN low voltage VEN_LOW 0.6 V VEN falling 5
Gate driver sourcing impedance 4 Ω VCC = 5.9V,VGATE = 5.9V 5
Gate driver sinking impedance 2.5 Ω VCC = 5.9V, IGATE = 10mA 5
COMP source current limit ICOMP SOLI 30 μA 1V < COMP < 2.9V 5
COMP sink current limit ICOMP SILI 18 μA 1V < COMP < 2.9V 5
COMP transconductance GCOMP 120 μA/V ∆ICOMP = ±10µA 5
PWM input low threshold VPWM_LO 0.4 V VPWM falling 5
PWM input high threshold VPWM_HI 1.5 V VPWM rising 5
ADIM input low threshold VADIM_LO 0.4 V VADIM falling 5
ADIM input high threshold VADIM_HI 1.5 V VADIM rising 5
LEDX regulation voltage 430 mV ILED = 200mA 5
LEDX regulation voltage 285 mV ILED = 60mA 5
OVP UVLO threshold VOVP_UV 55 mV Step-up converter fails 6
LEDX UVLO threshold VLEDX_UV 200 mV 6
Thermal protection threshold TST 130 °C 6
Supply voltage (recommended) VIN 4.5 33 V 4
Max LED current 400 mA 4
Operating junction temperature TJ -40 125 °C 4
VIN absolute maximum VIN -0.3 40 V 4
VLED1 to VLED4 absolute maximum VLED1-VLED4 -0.3 80 V 4
All other pins absolute maximum -0.3 6.5 V 4
Junction temperature TJ 150 °C 4
Lead temperature 260 °C 4
Storage temperature TSTG -60 150 °C 4
Thermal resistance junction-ambient TSSOP-16 EP θJA 45 °C/W Measured on JESD51-7, 4-layer PCB 4
Thermal resistance junction-case TSSOP-16 EP θJC 10 °C/W Measured on JESD51-7, 4-layer PCB 4

CAD (KiCad official)

  • Symbol: MP3398EGF-Z
  • Footprint: Package_SO:TSSOP-16-1EP_4.4x5mm_P0.65mm
  • 3D model: TSSOP-16-EP (KiCad packages3D, STEP)
  • 3D model files: mp3398egf-z-etched.step / mp3398egf-z-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mp3398egf-z.step / mp3398egf-z.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Monolithic Power Systems datasheet (19 pp, sha256 5f589f214cfaf704, retrieved 2026-10-23, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-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).

Datasheet PDF