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PT2522

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PTC(Princeton Tech) Motor Driver ICs, QFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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PT2522

PTC(Princeton Tech) · Motor Driver ICs · QFN-32-EP(5x5)

PT2522 from PTC(Princeton Tech), in a QFN-32-EP(5x5). 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 LO1 output Phase 1 low side gate driver output, with 1.2A source / 2.0A sink short-circuit pulse current.
2 VS3 power_in Phase 3 high side driver floating power supply swing (offset) voltage, rated VB3-20V to VB3+0.3V.
3 HO3 output Phase 3 high side gate driver output, with 1.2A source / 2.0A sink short-circuit pulse current.
4 VB3 power_in Phase 3 high side driver floating power supply, absolute maximum 90V, recommended VBS of 10V-18V.
5 VS2 power_in Phase 2 high side driver floating power supply swing (offset) voltage, rated VB2-20V to VB2+0.3V.
6 HO2 output Phase 2 high side gate driver output, with 1.2A source / 2.0A sink short-circuit pulse current.
7 VB2 power_in Phase 2 high side driver floating power supply, absolute maximum 90V, recommended VBS of 10V-18V.
8 VS1 power_in Phase 1 high side driver floating power supply swing (offset) voltage, rated VB1-20V to VB1+0.3V.
9 HO1 output Phase 1 high side gate driver output, with 1.2A source / 2.0A sink short-circuit pulse current.
10 VB1 power_in Phase 1 high side driver floating power supply, absolute maximum 90V, recommended VBS of 10V-18V.
11 GND power_in Signal ground.
12 VDD power_in Supply voltage input for the chip and internal LDO, 6V to 24V operating (5V to 28V absolute maximum).
13 VREG power_out +5V regulator (LDO) output, 4.75V to 5.25V with up to 20mA output current.
14 FWR input Forward/reverse direction switching input.
15 RSEN input External NTC resistor input for over-temperature protection, trips below 0.6V and resets above 1.2V.
16 RF input Current limiting voltage sensing input, over-current protection threshold 0.3V.
17 ZCU input U-phase back-EMF zero-crossing input, divided below 5V externally.
18 ZCV input V-phase back-EMF zero-crossing input, divided below 5V externally.
19 ZCW input W-phase back-EMF zero-crossing input, divided below 5V externally.
20 COMI input Motor three-phase virtual neutral point input.
21 FLT input Six-step commutation signal filter input; recommended filter capacitor 0.1nF to 10nF.
22 OSC_C bidirectional External capacitor connection that sets the triangular wave for PWM comparison (0.1 to 10 KHz range, 1KHz with 470pF).
23 VSP input DC (0.3V to 3.0V) or PWM (15KHz to 25KHz, high above 3.3V, low below 0.3V) speed control input.
24 RD output Stall protection indication output (5V CMOS logic).
25 FG output Speed indicator output (5V CMOS logic).
26 SCL input I2C control interface serial clock input, up to 50KHz.
27 SDA bidirectional I2C control interface serial data input/output.
28 VPP power_in OTP burning power input, 7.5V.
29 VCC power_in Internal logic circuit and low side gate driver power input, 5.5V to 18V (10V-18V recommended).
30 COM power_in Internal logic circuit and low side gate driver power ground.
31 LO3 output Phase 3 low side gate driver output, with 1.2A source / 2.0A sink short-circuit pulse current.
32 LO2 output Phase 2 low side gate driver output, with 1.2A source / 2.0A sink short-circuit pulse current.
33 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer PTC(Princeton Tech)
Package QFN-32-EP(5x5)
Category Power Management ICs
Pins 33

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 (abs max) VDD 5 28 V 18
High-side floating supply voltage (abs max) VB1,2,3 -0.3 90 V 18
Low-side supply voltage (abs max) VCC -0.3 20 V 18
Allowable offset voltage slew rate dV/dt 50 V/ns 18
Input/Output voltage -0.3 6 V 18
Operating temperature TA -40 85 °C 18
Storage temperature TSTG -40 150 °C 18
VDD supply voltage VDD 6 12 24 V VDD input 19
Low-side supply voltage VCC 5.5 18 V 19
High-side floating supply offset voltage VS1,2,3 60 V min is COM-6 19
Power supply current IDD 5 mA VDD = 12V 19
Regulator output voltage VREG 4.75 5 5.25 V 19
Regulator output current IREG 20 mA 19
External oscillator frequency range FOSC_C 0.1 10 KHz OSC_C pin 19
Logic output high level VOH 4 4.5 5.5 V UVWL, UVWH, FG, RD 19
Logic output low level VOL 0 0.3 V UVWL, UVWH, FG, RD 19
VSP DC for control range VSPDC 0.3 3 V DC input (VSP pin) 19
VSP input frequency range for PWM VSPF 15 25 KHz PWM input (VSP pin) 19
VCC supply under-voltage positive going threshold VCCUV+ 2.9 4.2 5.5 V 19
VCC supply under-voltage negative going threshold VCCUV- 2.5 3.8 5.1 V 19
High side VBS supply under-voltage positive going threshold VBSUV+ 2.5 3.8 5.5 V 20
High side VBS supply under-voltage negative going threshold VBSUV- 2.2 3.5 4.8 V 20
SCL clock frequency fSCL 0 50 KHz 9
Hold time START condition tHD;STA 4 µS 9
LOW period of the SCL clock tLOW 4.7 µS 9
HIGH period of the SCL clock tHIGH 4 µS 9
Data setup time tSU;DAT 250 nS 9
Data hold time tHD;DAT 5 µS 9
Setup time for STOP condition tSU;STO 4 µS 9
VCC operating voltage range VCC 10 18 V 6
VBS operating voltage range VBS 10 18 V 7
Over current protection voltage VOCP 0.3 V RF pin 19
External oscillator FOSC_1K 1 KHz OSC_C= 470pF 19
PWM switching frequency Fsw 20 KHz 19
Logic input pull high current Isource 10 A FR 19
RSEN internal pull high resistance RSEN 47 KΩ RSEN pin, connect to VREG 19
VSP input high level for PWM VSPH 3.3 V PWM input (VSP pin) 19
VSP input low level for PWM VSPL 0.3 V PWM input (VSP pin) 19
Over temperature protection trigger level VOTP 0.6 V RSEN pin 19
Over temperature protection reset level VREL 1.2 V RSEN pin 19
VCC supply under-voltage lockout hysteresis VCCHYS 0.4 V 20
High side VBS supply under-voltage lockout hysteresis VBSUVHYS 0.3 V 20
High side output HIGH short-circuit pulse current IHO+ 1.2 A VHO=VS=0 20
High side output LOW short-circuit pulse current IHO- 2 A VHO=VB=15V 20
Low side output HIGH short-circuit pulse current ILO+ 1.2 A VLO=0 20
Low side output LOW short-circuit pulse current ILO- 2 A VLO=VCC=15V 20

CAD (KiCad official)

  • Symbol: PT2522
  • Footprint: Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm
  • 3D model: QFN-32-EP(5x5) (KiCad packages3D, STEP)
  • 3D model files: pt2522-etched.step / pt2522-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pt2522.step / pt2522.glb are the bare package body.

Provenance

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

  • Datasheet: PTC(Princeton Tech) datasheet (23 pp, sha256 4b4bd0d3d8ae04e5, 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