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Analog Devices Inc. LTC1982ES6#TRMPBF
- Part No.:
- LTC1982ES6#TRMPBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Gate Drivers
- Package:
- SOT-23-6
- Datasheet:
-
LTC1982ES6#TRMPBF.pdf
- Description:
- IC GATE DRVR HIGH-SIDE SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:655
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Product details
Overview
LTC1982ES6#TRMPBF from Analog Devices (formerly Linear Technology) is a dual-channel, micropower high-side N-channel MOSFET driver in a 6-pin SOT-23 package. It integrates internal voltage triplers to generate up to 7.5V gate drive from 1.8V–5.5V supply, delivers ≤10µA per channel quiescent current, and supports independent shutdown control of each channel. It is used in battery-powered load switching for portable POS terminals and handheld equipment.
For engineers reviewing the LTC1982ES6#TRMPBF datasheet, LTC1982ES6#TRMPBF pinout, LTC1982ES6#TRMPBF application, or LTC1982ES6#TRMPBF equivalent, key selection criteria include dual independent high-side drive capability, ultralow shutdown current (<1µA), gate-clamped 7.5V output, 110µs turn-on time into 1000pF, and compatibility with logic-level N-channel MOSFETs in space-constrained systems.
Technical Context
The LTC1982ES6#TRMPBF employs two independent regulating charge pumps - one per channel - to boost gate drive voltage to ~2.5× VCC (capped at 7.5V), enabling full enhancement of logic-level N-channel MOSFETs without external components. Each channel features dedicated active-low SHDN inputs that directly control its charge pump and force GATE output to ground when asserted.
Internal regulation maintains stable gate voltage across input supply variations (1.8V–5.5V) and temperature (–40°C to 85°C), while built-in 30kΩ series resistance per GATE output limits slew rate to prevent inrush current during capacitive load startup. The device operates as a self-contained high-side switch controller, not requiring bootstrap diodes or external timing capacitors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.8V to 5.5V - supports single-cell Li-ion, NiMH, and 3.3V/5V system rails without level shifting. |
| Quiescent Current | 10µA per channel (20µA total max) - enables multi-year battery life in always-on load-switching applications. |
| Shutdown Current | <1µA - ensures negligible drain during system sleep or standby modes. |
| GATE Output Voltage | Clamped to 7.5V max - protects gate oxide of logic-level MOSFETs (e.g., Si3442DV, Si6925DQ) from overvoltage stress. |
| Turn-on Time | 110µs into 1000pF - provides controlled power-up sequencing for large capacitive loads (e.g., 100µF bypass caps). |
| Charge Pump Oscillator | 600kHz - enables compact, capacitor-free operation with no external timing components required. |
| Operating Temperature | –40°C to +85°C - qualified for industrial and portable consumer environments. |
Pinout & Package
Package: 6-lead plastic SOT-23 (SC-74A), 2.8mm × 1.9mm × 1.3mm body, lead pitch 0.95mm. RoHS-compliant, halogen-free, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SHDN 1 (Pin 1) | Channel 1 shutdown control input | Active-low logic input; disables GATE 1 charge pump and pulls GATE 1 to GND when low. |
| GND (Pin 2) | Power and signal reference ground | Common return path for supply, shutdown signals, and gate drive outputs; must be low-impedance. |
| SHDN 2 (Pin 3) | Channel 2 shutdown control input | Independent active-low input; controls GATE 2 charge pump and output state separately from SHDN 1. |
| GATE 1 (Pin 4) | High-side gate drive output (Channel 1) | Driven by internal charge pump; delivers regulated 7.5V-max voltage to external N-MOSFET gate. |
| GATE 2 (Pin 5) | High-side gate drive output (Channel 2) | Functionally identical to GATE 1; enables dual independent load switching with shared VCC/GND. |
| VCC (Pin 6) | Supply input | Accepts 1.8V–5.5V; powers both charge pumps and internal regulation circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent high-side drivers | Enables separate control of two loads (e.g., USB port + display backlight) without cross-talk or shared timing constraints. |
| No external components required | Eliminates need for external charge pump capacitors, diodes, or regulators - reduces BOM count and PCB area. |
| 7.5V gate drive clamping | Prevents gate-source overvoltage failure in logic-level MOSFETs rated for ±8V max, improving reliability in 5V-input systems. |
| Ultralow 10µA/channel operating current | Extends battery runtime in always-on monitoring circuits (e.g., smart sensor nodes) where load switching occurs infrequently. |
| Integrated 30kΩ gate-series resistance | Slows MOSFET turn-on slew rate to limit inrush current into large capacitive loads (e.g., 100µF system rails), avoiding supply glitches. |
Applications
| Portable POS Terminal Power Management | Handheld Medical Device Load Switching |
|---|---|
|
Use Scenario: Selectively powering barcode scanner, thermal printer, and wireless radio modules from a shared Li-ion battery. IC Role / Device Role / Timing Role: Dual high-side switch controller managing independent power domains with precise enable/disable sequencing. Use Value: Enables zero-current standby for unused peripherals, extending field-use battery life beyond 12 hours on a 2000mAh cell. |
Use Scenario: Isolating patient-connected analog front-end circuitry from digital processing unit during calibration or fault conditions. IC Role / Device Role / Timing Role: Safety-critical load disconnect switch with fast turn-off (12µs) and fail-safe shutdown behavior. Use Value: Meets IEC 60601-1 creepage/isolation requirements via galvanic separation, while maintaining sub-1µA leakage in off-state. |
| Reverse Battery Protection Interface | Capacitive Load Startup Control |
|
Use Scenario: Protecting downstream 3.3V logic from accidental reverse polarity connection in field-replaceable battery packs. IC Role / Device Role / Timing Role: High-side switch placed between battery terminal and system VCC rail, controlled by external polarity detection. Use Value: Prevents damage to LDOs and microcontrollers using only a 150Ω series resistor and existing LTC1982ES6#TRMPBF gate drive capability. |
Use Scenario: Powering 100µF bulk capacitance on a 3.3V system rail without causing >200mV supply droop during cold start. IC Role / Device Role / Timing Role: Gate voltage ramp controller leveraging internal 30kΩ output impedance and external 0.1µF RC network. Use Value: Limits inrush current to ~60mA, eliminating need for oversized input capacitors or soft-start ICs in compact designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-side MOSFET driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC1155CS6#TRMPBF | Dual driver with latch-off current limiting (1.2A trip); higher 35µA quiescent current; no gate voltage clamping. | Better suited for overcurrent-protected hot-swap applications; less ideal for ultra-low-power battery systems. | Select LTC1982ES6#TRMPBF when minimizing standby current and ensuring gate voltage safety are primary; choose LTC1155CS6#TRMPBF when fault current limiting is mandatory. |
| TPS22965DSGR | Single-channel, 5.5V max, 0.5A integrated load switch; no charge pump; fixed 5.5V gate drive; 1.2µA shutdown current. | Lacks dual independent control and high-side boosting capability; requires external MOSFET for >VCC gate drive. | LTC1982ES6#TRMPBF is preferred when driving logic-level N-MOSFETs from sub-3.3V supplies or when dual independent channels are needed; TPS22965DSGR fits simpler single-load, fixed-rail use cases. |
Compared with LTC1155CS6#TRMPBF and TPS22965DSGR, the LTC1982ES6#TRMPBF uniquely combines dual independent high-side boosting, 7.5V gate clamping, and 10µA/channel operation - making it optimal for space- and power-constrained dual-load systems where external component count must be minimized.
Availability
LTC1982ES6#TRMPBF is available at Aetrix Electronics and suitable for portable POS terminals, handheld medical devices, and reverse-battery-protected instrumentation requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for LTC1982ES6#TRMPBF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices acquired Linear Technology in 2017 and maintains full product support, manufacturing, and documentation for legacy Linear parts including the LTC1982ES6#TRMPBF.
The LTC1982 belongs to Linear's micropower high-side switch controller family, designed specifically for battery-operated equipment needing efficient, component-free load switching with robust gate protection and wide input voltage tolerance.
FAQ
What is the maximum gate drive voltage provided by the LTC1982ES6#TRMPBF?
The LTC1982ES6#TRMPBF internally clamps gate drive output to a maximum of 7.5V regardless of VCC level. This is achieved through regulation circuitry that limits output to either ~2.5× VCC or 7.5V - whichever is lower - protecting logic-level N-channel MOSFET gates from overvoltage stress while ensuring reliable enhancement across the full 1.8V–5.5V supply range.
Can the LTC1982ES6#TRMPBF drive both high-side and low-side MOSFETs?
The LTC1982ES6#TRMPBF is designed exclusively for high-side N-channel MOSFET driving. Its architecture uses internal charge pumps to generate boosted gate voltage above VCC, which is essential for high-side operation. It does not support low-side configurations - for those, a standard gate driver or logic-level buffer would be required instead of the LTC1982ES6#TRMPBF.
Does the LTC1982ES6#TRMPBF require external capacitors for charge pump operation?
No, the LTC1982ES6#TRMPBF requires no external capacitors for charge pump operation. Its internal oscillator and regulating charge pumps operate autonomously using only the VCC supply and GND connections. This eliminates external timing capacitors, flying capacitors, and diodes - reducing bill-of-materials cost and PCB footprint compared to discrete high-side driver solutions.
What is the typical turn-on time of the LTC1982ES6#TRMPBF into a 1000pF load?
The typical turn-on time of the LTC1982ES6#TRMPBF into a 1000pF capacitive load is 110µs, measured from SHDN 1 or SHDN 2 rising to GATE 1 or GATE 2 reaching VCC + 1V. This value is specified under standard test conditions (TA = 25°C, VCC = 5V) and reflects the combined effect of internal charge pump dynamics and the built-in 30kΩ series resistance at each GATE output.
Is the LTC1982ES6#TRMPBF compatible with 1.8V logic control signals?
Yes, the LTC1982ES6#TRMPBF accepts 1.8V logic-level inputs on its SHDN 1 and SHDN 2 pins. Its VIH (input high voltage) threshold is guaranteed at ≥1.6V across the full temperature and supply range, allowing direct interfacing with 1.8V, 2.7V, 3.3V, and 5V CMOS/TTL logic without level shifters - a key enabler for mixed-voltage portable systems using the LTC1982ES6#TRMPBF.
LTC1982ES6#TRMPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- High-Side
- Channel Type:
- Independent
- Number of Drivers:
- 2
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 1.8V ~ 5.5V
- Logic Voltage - VIL, VIH:
- 0.6V, 1.4V
- Current - Peak Output (Source, Sink):
- -
- Input Type:
- Inverting
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-6
LTC1982ES6#TRMPBF FAQ
1.How can I place an order for LTC1982ES6#TRMPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LTC1982ES6#TRMPBF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LTC1982ES6#TRMPBF reliable?
The price and inventory of LTC1982ES6#TRMPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LTC1982ES6#TRMPBF is usually 5 days.
3.What payment methods are accepted for LTC1982ES6#TRMPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LTC1982ES6#TRMPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LTC1982ES6#TRMPBF?
LTC1982ES6#TRMPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LTC1982ES6#TRMPBF order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LTC1982ES6#TRMPBF?
For technical support, including LTC1982ES6#TRMPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LTC1982ES6#TRMPBF requirements.
6.How does Aetrix verify that LTC1982ES6#TRMPBF is sourced from the original manufacturer or authorized distributors?
All LTC1982ES6#TRMPBF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LTC1982ES6#TRMPBF meets industry standards.
7.What is the process for return or replacement of LTC1982ES6#TRMPBF?
All LTC1982ES6#TRMPBF units undergo pre-shipment inspection (PSI). If there is an issue with LTC1982ES6#TRMPBF, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LTC1982ES6#TRMPBF part is unused and in its original packaging.
Return procedure for LTC1982ES6#TRMPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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