component
TL7733BCDR
Public Made by Adomby adom
Texas Instruments Supervisor And Reset ICs, SOIC-8. Pinout extracted from the datasheet, 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
markdownTL7733BCDR
Texas Instruments · Supervisor And Reset ICs · SOIC-8
TL7733BCDR from Texas Instruments, in a SOIC-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 | REF | output | Reference voltage output. Provides a temperature-compensated 2.53 V (typ, 2.48-2.58 V) reference at Iref = -500 µA. Requires an external 0.1 µF decoupling capacitor to GND to reduce influence of fast supply transients. |
| 2 | RESIN | input | Active-low reset input. When RESIN is low (VIL <= 0.8 V), RESET output goes high and RESET goes low, forcing a reset regardless of SENSE. When RESIN is high (VIH >= 2 V), the RESET outputs are allowed to trigger based on the SENSE voltage. Input current -10 µA max. |
| 3 | CT | passive | Timing capacitor connection. External capacitor CT to GND sets the reset pulse duration after SENSE crosses the positive-going threshold: td ~= 2.6e4 x CT (seconds, with CT in farads). Charged by an internal current source; a series resistor RT is recommended when SENSE monitors VCC to prevent false triggering. |
| 4 | GND | power_in | Ground reference. All voltages are referenced to this pin. |
| 5 | RESET | output | Active-low reset output (open-collector). Sinks up to IOL = 16 mA at VOL <= 0.4 V. Asserts low during power-up (VCC >= ~1 V), when SENSE < VIT- (~3.08 V typ), or when RESIN is low. Requires an external pullup resistor (10 kOhm recommended). |
| 6 | RESET | output | Active-high reset output (open-emitter/collector totem). Sources up to IOH = -16 mA at VOH >= VCC - 1.5 V. Asserts high during undervoltage or when RESIN is low; complementary to the active-low RESET (pin 5). Requires an external pulldown resistor (10 kOhm recommended). |
| 7 | SENSE | input | Sense input. Voltage input to be supervised, typically tied to VCC or a divided supply rail. Negative-going threshold VIT- = 3.08 V (typ, 3.03-3.13 V at 25°C) with ~10 mV hysteresis. Input voltage range 0 to 18 V. |
| 8 | VCC | power_in | Supply voltage input. Recommended operating range 3.6 V to 18 V (absolute max 20 V). Supply current ICC = 1.8 mA typ, 3 mA max at VSENSE = 15 V. Decouple with 0.1 µF to GND. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
TL7733BCDRTL7733BCDRBIDTL7733BCDRBIDRTL7733BCDRBCPTL7733BCDRBCP.A
CAD (KiCad official)
- Symbol:
TL7733BCDR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
tl7733bcdr-etched.step/tl7733bcdr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tl7733bcdr.step/tl7733bcdr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (None pp, sha256
08789e8628c5397c, retrieved 2026-08-17, 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:
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).