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GP1200QLGT

Public Made by Adom

by adom

HaloChip AC-DC Controllers And Regulators, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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GP1200QLGT

HaloChip · AC-DC Controllers And Regulators · SOT-23-6

GP1200QLGT from HaloChip, 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 GND power_in Chip ground (芯片地) and the reference for the controller; the datasheet gives no electrical limit for this pin.
2 GATE output Drives the external primary-side MOSFET through a totem-pole driver, clamped to 16 V typical at VDD=24 V (absolute maximum 20 V), with 700 ns typical rise time and 35 ns typical fall time at 0.5 nF load.
3 CS input Peak current sense input for cycle-by-cycle over-current protection, with 500 ns typical leading-edge blanking and 100 ns over-current detection delay at 0.5 nF GATE load; absolute voltage range -0.3 V to 7 V.
4 CC input Constant-current control pin whose internal reference is 500 mV (490 to 510 mV), with absolute voltage range -0.3 V to 7 V.
5 FB input Output voltage feedback input with a 2.0 V reference (1.97 to 2.03 V), output short-circuit threshold of 1.2 V, and absolute voltage range -0.7 V to 7 V.
6 VDD power_in Chip supply pin with start-up at 18 to 22 V, under-voltage lockout off at 8 to 10 V, over-voltage protection at 31 to 35 V, and clamp at 33 to 37 V (absolute maximum 35 V, clamp current maximum 10 mA).

Key specifications

Parameter Value
Manufacturer HaloChip
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
VDD supply voltage VDD 35 V 3
VDD clamping current IVDD_clamping 10 mA 3
GATE pin voltage 20 V 3
CC,CS pin voltage (current sense) CC,CS -0.3 7 V 3
FB pin voltage (feedback input) FB -0.7 7 V 3
Thermal resistance SOT23-6 250 ℃/W 3
Maximum junction temperature TJ 150 ℃ 3
Operating temperature range Ta -40 85 ℃ 3
Storage temperature range TSZG -55 150 ℃ 3
Maximum soldering temperature Tlead 260 ℃ 10 s soldering 3
ESD (human body model) ESD 2 kV Human body model, 100pF discharged through 1.5KΩ (note 2) 3
Maximum switching frequency 120 khz 3
Startup current I_Startup 2 20 uA VDD =UVLO(ON)-1V, Measure current into VDD 4
Operating current I_VDD_Op 1 1.5 mA VFB=1V,CL=0.5nF, VDD=20V 4
Start-up voltage (UVLO on) UVLO(ON) 18 20 22 V 4
Shut-down voltage (UVLO off) UVLO(OFF) 8 9.5 10 V 4
VDD overvoltage protection VDD_OVP 31 33 35 V 4
VDD clamp voltage VDD_Clamp 33 35 37 V I(VDD ) = 7 mA 4
Reference voltage (FB error amplifier) VFB_EA_Ref 1.97 2 2.03 V 4
Internal reference voltage (CC pin) V_CC_ref 490 500 510 mV 4
Output short-circuit protection threshold VFB_Short 1.2 V 4
Output short-circuit protection response time TFB_Short 50 ms 4
Demagnetization detection comparison voltage VFB_DEM 75 mV 4
Minimum off time Tmin_OFF 2 us 4
Maximum off time Tmax_OFF 3 ms 4
Maximum line-compensation current ICable_max 55 uA 4
Leading-edge blanking time T_blanking 500 ns 4
Overcurrent detection delay TD_OC 100 ns CL=0.5nF at GATE 4
Gate clamp voltage VG_Clamp 16 V VDD=24V 4
Gate rise time T_r 700 ns CL=0.5nF 5
Gate fall time T_f 35 ns CL=0.5nF 5

CAD (KiCad official)

  • Symbol: GP1200QLGT
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: gp1200qlgt-etched.step / gp1200qlgt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); gp1200qlgt.step / gp1200qlgt.glb are the bare package body.

Provenance

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

  • Datasheet: HaloChip datasheet (9 pp, sha256 32812f5c6d2df259, retrieved 2026-10-17, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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