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Contents

README

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MT6620GA-STD

Magn Tek · Magnetic Angle Sensors · TSSOP-24

MT6620GA-STD from Magn Tek, in a TSSOP-24. 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 PWM output Push-pull digital PWM output carrying the 12-bit absolute angle, with programmable frequency (125 Hz to 2 kHz) and polarity.
2 - unconnected Name, type and description are shown as '-' in the datasheet pin table (no function stated).
3 VCC power_in Power supply, 3.3 to 5.0 V (datasheet electrical conditions 3.0 to 5.5 V); a decoupling capacitor of at least 0.1 uF to ground is recommended.
4 - unconnected Name, type and description are shown as '-' in the datasheet pin table (no function stated).
5 - unconnected Name, type and description are shown as '-' in the datasheet pin table (no function stated).
6 - unconnected Name, type and description are shown as '-' in the datasheet pin table (no function stated).
7 - unconnected Name, type and description are shown as '-' in the datasheet pin table (no function stated).
8 VSS power_in Ground.
9 - unconnected Name, type and description are shown as '-' in the datasheet pin table (no function stated).
10 ENZ input Digital input that enables the target Z pulse and masks the extra Z pulses; when held high every magnetic pole pair outputs a Z pulse, otherwise no Z is output.
11 TEST_EN input Digital input for factory test, for MagnTek use only.
12 CAL_ENB input Digital input that enables calibration; pulling it low enters the self-calibration mode.
13 SDAT bidirectional Bidirectional SPI data line (3-wire SPI); high-impedance input except while the device drives output data.
14 SCK input SPI clock input driven by the host, held low when idle (minimum clock period 125 ns).
15 CSN input SPI chip select input; transfers start on the falling edge and end on the rising edge.
16 Z output Digital output for the incremental Z (zero) signal, with programmable width and position.
17 B output Digital output for the incremental B signal, quadrature with A.
18 A output Digital output for the incremental A signal, with programmable resolution of 1 to 2,500 pulses per pole pair.
19 STATUS output Digital output giving the signal amplitude as a 2 kHz PWM (10% to 33% duty cycle indicates a suitable magnetic field), and the self-calibration state during calibration.
20 ERROR output Digital output for the alarm (fault) information; it goes high on any diagnostic alarm and is low when there is none.
21 U output Digital output for the U signal of the UVW output (1 to 63 pole pairs programmable).
22 V power_in Digital output for the V signal of the UVW output, 120° from U.
23 W output Digital output for the W signal of the UVW output, 120° from V.
24 TEST input Digital input for factory test, for MagnTek use only.

Key specifications

Parameter Value
Manufacturer Magn Tek
Package TSSOP-24
Category Magnetic Sensors
Pins 24

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage (absolute max) VDD -0.3 6.5 V 6
Output current IOUT -25 25 mA ABZ, UVW, PWM, STATUS, ERROR, SDAT 6
Ambient temperature TAMB -40 125 °C 6
Junction temperature TJ -40 150 °C 6
Storage temperature TStorage -40 150 °C 6
ESD HBM VHBM -4 4 kV AEC-Q100-002 6
ESD CDM VCDM -1 1 kV AEC-Q100-011 6
Supply voltage VDD 3 5.5 V typ printed as 3.3~5.0 7
Undervoltage alarm threshold VTH_UV 2.45 2.65 V 7
INL after factory calibration INL -0.5 0.5 ° Note [1] 7
INL after customer self-calibration INL -0.2 0.2 ° Note [2] 7
PWM frequency tolerance FPWM -5 5 % programmable, 125~2,000 Hz 8
PWM rise time TRise 1 us CL=1nF 8
PWM fall time TFall 1 us CL=1nF 8
AB resolution ABRES 1 2500 pulses/pole pair programmable 8
A or B frequency ABFreq 8 MHz Note [3] 8
EEPROM supply voltage VDD 3 5.5 V erase/write and read 8
EEPROM data retention Data Retention 10 years @150℃ 8
Output logic low VOL 0.4 V push-pull, Iout=2mA 9
Digital rise time TRise 50 ns CL=20pf 9
Digital fall time TFall 50 ns CL=20pf 9
Magnet pole pitch Dmag 2 mm 10
Input magnetic field Bpk 5 50 mT measured at chip surface 10
SPI CSN fall to SCK rise delay TL 100 ns 18
SPI clock period TSCK 125 ns 18
SPI clock low time TSCKL 50 ns 18
SPI clock high time TSCKH 50 ns 18
SDAT data valid time TDV 15 ns 20pf load 18
SDAT setup time TST 10 ns 18
SDAT hold time THD 10 ns 18
CSN low period for latch function TLATCH 1 us 18
Undervoltage hysteresis VHYS_UV 100 mV 7
Operating current Idd 25 mA 7
Differential nonlinearity DNL 0.05 ° @2500 pulses ABZ mode; printed ±0.05 7
Transient noise TN 0.01 °rms 25℃ @100Gs, register BW=3 7
Hysteresis window Hyst 0.022 ° programmable 7
Power-up ready time TPwrUp 70 ms power-up <100us 7
System delay TDelay 5 us constant speed 7
NdFeB magnet temperature coefficient TCmag1 -0.12 %/℃ 10
SmCo magnet temperature coefficient TCmag2 -0.035 %/℃ 10
SPI rise time TR 10 ns 20pf load 18
SPI fall time TF 10 ns 20pf load 18

CAD (KiCad official)

  • Symbol: MT6620GA-STD
  • Footprint: Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm
  • 3D model: TSSOP-24 (KiCad packages3D, STEP)
  • 3D model files: mt6620ga-std-etched.step / mt6620ga-std-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mt6620ga-std.step / mt6620ga-std.glb are the bare package body.

Provenance

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

  • Datasheet: Magn Tek datasheet (29 pp, sha256 fd566e935a68214a, retrieved 2026-10-22, 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-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