SN74LVC1G07DBVR - Open-Drain Buffer 1.65-5.5V SOT-23-5 | TI
MPN: SN74LVC1G07DBVR ✓ فعالSN74LVC1G07DBVR جائزہ
An open-drain buffer is a logic element whose output transistor has no internal pull-up structure; the output can only actively pull LOW and relies on an external pull-up resistor to another voltage rail to go HIGH. In the voltage-regulation hierarchy of digital logic families, this places the SN74LVC1G07 among low-voltage CMOS (LVC) interface logic, one step above raw gates and one step below full bus transceivers. Open-drain outputs are the foundation of shared buses such as I2C, interrupt lines, and wired-OR / wired-AND logic networks.
Key features include support for 5 V VCC operation with input and open-drain output tolerating up to 5.5 V, a maximum propagation delay of 3.3 ns at 3.3 V, ultra-low power consumption with 10 uA maximum ICC, and ±24 mA output drive capability at 3.3 V. The Ioff feature supports partial-power-down applications by preventing damaging backfeed currents when the device is unpowered.
Architecturally, the device combines a single CMOS input stage with a discrete NMOS pull-down output stage. Because the output floats high only through the external pull-up, multiple SN74LVC1G07 outputs can be tied together to implement active-low wired-OR or active-high wired-AND functions without contention. The wide 1.65 V to 5.5 V operating range allows true level-shifting: a 1.8 V logic signal can control a 5 V rail through the open-drain output.
Typical applications include I2C and SMBus bus buffering, open-drain interrupt or enable line fan-out, level shifting between mixed-voltage subsystems, LED and relay driver front-ends, and microcontroller GPIO expansion where multiple boards share a common pull-up rail.
Design consideration: the external pull-up resistor value is a trade-off - lower values improve edge speed and noise immunity but increase sink current; verify the resistor keeps the sink current below the 32 mA maximum rating.
This page synthesizes distributor pricing, drop-in cross-brand alternatives, and practical design notes not found in the manufacturer datasheet.
کے لیے ڈراپ اِن متبادل SN74LVC1G07DBVR — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں SN74LVC1G07DBVR (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف MSL Level, Package, Function, Operating Temperature, Output Type.
SN74LVC1G07DBVT
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
SN74LVC1G07DBVR
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →74LVC1G07GM-115
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
74LVC1G07W5-7
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
SN74LVC1G07DCKR
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →SN74LVC1G07DBVR زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| فنکشن | Single non-inverting buffer/driver |
| آؤٹ پٹ کی قسم | Open drain |
| Supply Voltage Range | 1.65 V to 5.5 V |
| Max Input Voltage | 5.5 V |
| Max Open-Drain Output Voltage | 5.5 V |
| Max Sink Current | 32 mA |
| Output Drive at 3.3 V | ±24 mA |
| Max Propagation Delay | 3.3 ns at 3.3 V |
| Max Quiescent Current ICC | 10 uA |
| Ioff Partial-Power-Down | Supported |
| آپریٹنگ درجہ حرارت | -40C to +125C |
| پیکیج | SOT-23-5 (DBV) SC-74A / SOT-753 |
| ماؤنٹنگ ٹائپ | Surface Mount |
| چینلز | 1 Element, 1 Bit per Element |
| Polarity | Non-inverting |
| RoHS اسٹیٹس | Compliant |
| MSL لیول | 1 |
SN74LVC1G07DBVR پن کنفیگریشن
| پن 1 | A — Data input |
| پن 2 | GND — Ground |
| پن 3 | Y — Open-drain output |
| پن 4 | NC — Not connected (per datasheet) |
| پن 5 | VCC — Power supply, 1.65 V to 5.5 V |
عام استعمالات
SN74LVC1G07DBVR کے لیے موزوں ہے 6 ایپلیکیشنs: I2C / SMBus Line Buffering, Mixed-Voltage Level Shifting, Wired-OR / Wired-AND Logic, Microcontroller GPIO Expansion and Interrupt Fan-out, LED and Low-Side Indicator Driving, Automotive and Industrial Digital Interfacing.
I2C / SMBus Line Buffering
The SN74LVC1G07DBVR is a natural fit for I2C and SMBus open-drain buses because its output structure mirrors the bus protocol itself: pull LOW actively, release HIGH through external pull-ups. With VCC from 1.65 V to 5.5 V and IO tolerance to 5.5 V, a controller running at 1.8 V can safely buffer a 3.3 V or 5 V bus without level translation hardware. The 32 mA sink capability far exceeds the 3 mA typical I2C sink requirement, providing large margin at fast-mode 400 kHz speeds. Place the device close to the bus connector and choose pull-up resistors sized to the bus capacitance to meet rise-time limits.
تجویز کردہ
Mixed-Voltage Level Shifting
Open-drain outputs are the classic method of translating between logic domains: the SN74LVC1G07DBVR input can be driven by a 1.8 V or 2.5 V signal while the output is pulled up to any rail up to 5.5 V. Because the input and output tolerate 5.5 V regardless of VCC, and the Ioff feature prevents backfeed during partial-power-down, the device suits power-sequenced mixed-rail systems. The trade-off versus a dedicated translator is speed: the HIGH edge is set by the RC time constant of the pull-up and node capacitance, so keep pull-ups in the 1 k ohm to 10 k ohm range for sub-microsecond edges.
تجویز کردہ
Wired-OR / Wired-AND Logic
Multiple SN74LVC1G07 outputs can be tied directly to a single pull-up node to implement active-low wired-OR or active-high wired-AND functions without any risk of output contention, since each output can only sink current. This eliminates the glue logic of discrete OR/AND gates in fault-aggregation and enable-chaining circuits. With a maximum ICC of 10 uA and 3.3 ns propagation delay at 3.3 V, cascaded open-drain stages add negligible timing skew and standby power. Design the shared pull-up value considering the combined leakage of all tied outputs so the HIGH level stays within specification.
تجویز کردہ
Microcontroller GPIO Expansion and Interrupt Fan-out
The SN74LVC1G07DBVR fans out a microcontroller open-drain interrupt or enable output across boards and subsystems sharing one pull-up rail. Its -40C to +125C operating range and 5.5 V tolerant pins make it robust in industrial environments where multiple controller boards assert a shared fault or wake line. Propagation delay of 3.3 ns at 3.3 V ensures interrupt timing is preserved, and the 10 uA max ICC suits battery-backed controllers. Use one buffer per board tap to prevent bus contention and to isolate boards during hot-swap events, leveraging the Ioff partial-power-down feature.
تجویز کردہ
LED and Low-Side Indicator Driving
As a low-side switch, the SN74LVC1G07DBVR sinks LED return current directly from a supply rail up to 5.5 V, independent of its own VCC. The 32 mA maximum sink current covers typical indicator and backlight LEDs, and the ±24 mA drive at 3.3 V gives consistent brightness in 3.3 V logic systems. Because the open-drain output behaves like a switch to ground, dimming can be implemented via PWM from the driving logic. Estimated: with a 330 ohm series resistor on a 5 V rail, LED current is roughly 10 mA, well within ratings, and the buffer adds essentially no thermal stress in the SOT-23-5 package.
تجویز کردہ
Automotive and Industrial Digital Interfacing
In automotive and industrial controllers, the SN74LVC1G07DBVR conditions and drives status, enable, and fault lines between modules operating at different supply rails. The -40C to +125C temperature range, 5.5 V tolerant inputs/outputs, and Ioff partial-power-down behavior address harsh-environment and power-cycled conditions common in these systems. Its small SOT-23-5 footprint fits dense ECU and PLC boards, while MSL 1 handling simplifies assembly. Pair the open-drain output with an appropriate pull-up to the module's status rail for robust noise-immune signaling; typical values of 2.2 k ohm to 10 k ohm balance edge speed against quiescent draw.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا SN74LVC1G07DBVR — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | SN74LVC1G07DBVT | SN74LVC1G07DBVR (UMW) | 74LVC1G07GM-115 | 74LVC1G07W5-7 | 74LVC1G07 |
|---|---|---|---|---|---|---|
| Package | SOT-23-5 (DBV) | SOT-23-5 (DBV) - same | SOT-23-5 (DBV) - same | SOT-25 (SOT-23-5) - same footprint | SOT-25 (SOT-23-5) - same footprint | SOT-23-5 - same |
| Brand | Texas Instruments | Texas Instruments | UMW | Nexperia | Diodes Incorporated | onsemi |
| Supply Voltage Range | 1.65 V to 5.5 V | 1.65 V to 5.5 V | 1.65 V to 5.5 V | 1.65 V to 5.5 V | 1.65 V to 5.5 V | 1.65 V to 5.5 V |
| Output Type | Open drain, non-inverting | Open drain, non-inverting | Open drain, non-inverting | Open drain, non-inverting | Open drain, non-inverting | Open drain, non-inverting |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
اہم امتیازی خصوصیات
- True footprint-identical TI reel variants and second sources (بمقابلہSN74LVC1G07DCKR)
- 5.5 V tolerant I/O with Ioff partial-power-down (بمقابلہSN74LVC1G07DBVR (UMW))
- Multi-source availability at low cost (بمقابلہ74LVC1G07W5-7)
ڈیزائن نوٹس
The open-drain output never actively drives HIGH - if the external pull-up resistor is omitted, the output will simply float and downstream logic will see an undefined level. Always include a pull-up to the desired HIGH rail, and verify the worst-case sink current (pull-up voltage / resistor value) stays below the 32 mA maximum. For example, on a 5 V pull-up, 150 ohms would allow 33 mA and violate the rating; 1 k ohm or higher is safe.
HIGH-state rise time on an open-drain node is set by the RC product of the pull-up resistor and total node capacitance (trace, device inputs, cable). Long buses or heavily loaded wired-OR nodes need smaller pull-ups for speed, at the cost of higher sink current. As a starting point, 4.7 k ohm to 10 k ohm suits short on-board lines; drop to 1 k ohm to 2.2 k ohm for cables or 400 kHz+ bus operation. Measure rise time in-system to confirm protocol timing compliance.
Exploit the Ioff feature in multi-rail systems: the SN74LVC1G07 tolerates 5.5 V on its input and output even when its own VCC is 0 V, so placing it between powered-down and live domains does not backfeed the dead rail. Keep the 0.1 uF VCC decoupling capacitor within 2 mm of pin 5, and remember max ICC is only 10 uA, so the device adds negligible standby load to battery designs.
تعمیل کی معلومات
RoHS compliant and MSL 1 per distributor (PartGenie UMW listing and TI product data). REACH, halogen-free, and conflict-minerals declarations should be confirmed via the official TI environmental certificate page.
