component
BSP742TXUMA1
Public Unreviewedby Ray
Infineon Technologies Power Distribution Switches, SOP-8. Datasheet-verified pinout, 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
markdownBSP742TXUMA1
Infineon Technologies · Power Distribution Switches · SOP-8
BSP742TXUMA1 from Infineon Technologies, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GND | power_in | Logic ground reference for the device. An external ~150 Ω resistor in the GND connection is required for reverse-battery protection and for external current limiting when V_bb exceeds V_bb(AZ) (~41 V). |
| 2 | IN | input | CMOS-compatible logic input; a logic-high signal activates the high-side power switch. V_IN(T+) ≤ 2.2 V (turn-on), V_IN(T-) ≥ 0.8 V (turn-off), typical hysteresis 0.3 V. Input resistance R_I ≈ 1.5-5 kΩ (typ. 3.5 kΩ); continuous input voltage range −10…+16 V, input current limited to ±5 mA. |
| 3 | OUT | output | Protected high-side power output to the load. Sources current from V_bb through the internal N-channel power FET; typical R_ON = 260 mΩ (max 350 mΩ at 25 °C), nominal load current 0.8 A. Inductive switch-off clamp V_ON(CL) typ. 47 V (min 41 V). |
| 4 | NC | unconnected | Not connected - no internal bond; leave floating or tie as required by PCB layout. |
| 5 | Vbb | power_in | Positive supply / battery input. Operating range 5-34 V (absolute max 40 V, 30 V for full short-circuit protection); overvoltage clamp V_bb(AZ) = 41 V. Pin 5 is one of four Vbb pins tied together (5, 6, 7, 8) for current handling and thermal path. |
| 6 | Vbb | power_in | Positive supply / battery input (paralleled with pins 5, 7, 8). Operating range 5-34 V, overvoltage clamp 41 V. |
| 7 | Vbb | power_in | Positive supply / battery input (paralleled with pins 5, 6, 8). Operating range 5-34 V, overvoltage clamp 41 V. |
| 8 | Vbb | power_in | Positive supply / battery input (paralleled with pins 5, 6, 7). Operating range 5-34 V, overvoltage clamp 41 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Infineon Technologies |
| Package | SOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
BSP742TXUMA1 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Infineon Technologies datasheet (None pp, sha256
5edd600f477bd20f, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).