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Analog Devices Inc. LT1336IN#PBF
- Part No.:
- LT1336IN#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Gate Drivers
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
LT1336IN#PBF.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:100
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Product details
Overview
LT1336IN#PBF from Analog Devices (formerly Linear Technology) is a half-bridge N-channel power MOSFET driver with integrated boost regulator for high-side gate drive. It supports HV rail up to 60V, delivers 1.5A peak output current, achieves 180ns transition times into 10,000pF load, and maintains top-gate drive at near-100% duty cycle via adaptive bootstrap regulation. It is used in synchronous step-down regulators and 3-phase brushless motor control.
For engineers reviewing the LT1336IN#PBF datasheet, LT1336IN#PBF pinout, LT1336IN#PBF application, or LT1336IN#PBF equivalent, key selection criteria include its adaptive shoot-through protection, undervoltage lockout with 0.5V hysteresis, TTL/CMOS-compatible inputs, separate top/bottom drive pins, and operation across –40°C to +85°C industrial temperature range.
Technical Context
The LT1336IN#PBF implements dual noninverting gate drivers with independent input logic (INTOP/INBOTTOM), adaptive nonoverlapping timing, and internal hysteresis-based shoot-through prevention that eliminates MOSFET matching requirements. Its floating top driver operates referenced to TSOURCE, enabling gate drive above the HV rail.
It integrates a hysteretic-current-mode switching regulator (nominal 700kHz) that recharges the bootstrap capacitor during high-duty-cycle PWM, maintaining VBOOST–VTSOURCE at 10.6V regulated. Undervoltage detection acts independently on V+ (trip: 8.3V–9.2V) and VBOOST–VTSOURCE (trip: 8.7V–9.3V), pulling outputs low during fault conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 10V to 15V - defines minimum startup voltage and maximum safe bias for internal logic and drivers |
| Top Source Voltage Range | –5V to 60V - enables direct connection to high-voltage half-bridge node without level-shifting |
| Peak Output Current | 1.5A (<10µs) - supports fast charging of large gate capacitances (e.g., parallel MOSFETs) |
| Gate Rise/Fall Time | 90–200ns (bottom), 130–200ns (top) into 10,000pF - determines achievable switching frequency and transition loss |
| Undervoltage Lockout Hysteresis | 0.5V - ensures robust start-up and shutdown behavior under noisy or slowly ramping supplies |
| ISENSE Threshold | 480mV typical - sets peak current limit for internal boost regulator (RSENSE = 2Ω yields ~240mA inductor current) |
| Operating Temperature | –40°C to +85°C - qualified for industrial motor control and power supply environments |
Pinout & Package
LT1336IN#PBF is housed in a 16-lead plastic DIP package (N package), rated for industrial temperature range (–40°C to +85°C), with through-hole mounting and standard 0.3" wide body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INTOP (3) | Top driver enable input | TTL/CMOS-compatible; disables top driver when INBOTTOM is high - enforces hardware-level nonoverlap |
| INBOTTOM (4) | Bottom driver enable input | TTL/CMOS-compatible; disables bottom driver when INTOP is high - prevents simultaneous conduction |
| TGATEDR (13) | Top gate drive output | High-current source/sink node for top N-MOSFET gate; connects via optional series resistor |
| TGATEFB (12) | Top gate feedback input | Direct connection to top MOSFET gate; inhibits bottom driver until VGS < 2.9V - ensures safe dead-time |
| TSOURCE (11) | Top driver return reference | Connects to top MOSFET source and bootstrap capacitor low side - establishes floating ground for top driver |
| BOOST (14) | Top driver supply input | Connects to high side of bootstrap capacitor; regulated to 10.6V above TSOURCE by internal switcher |
| BGATEDR (9) | Bottom gate drive output | High-current source/sink node for bottom N-MOSFET gate; referenced to PGND |
| BGATEFB (8) | Bottom gate feedback input | Direct connection to bottom MOSFET gate; inhibits top driver until VGS < 2.5V - ensures complementary dead-time |
| UVOUT (5) | Open-collector undervoltage flag | Sinks current when V+ or VBOOST–VTSOURCE falls below threshold - enables system-level fault signaling |
| ISENSE (1) | Boost regulator current sense | Monitors inductor current via external RSENSE; triggers switch turn-off at ~240mA (with 2Ω) |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive nonoverlapping gate drives | Hardware-enforced dead-time via gate feedback monitoring - eliminates need for matched MOSFETs or external timing circuits |
| Integrated boost regulator | Hysteretic 700kHz switcher sustains VBOOST–VTSOURCE at 10.6V during >90% duty cycle - enables true DC operation |
| Dual independent undervoltage lockout | Separate thresholds for V+ (8.3–9.2V) and VBOOST–VTSOURCE (8.7–9.3V) - prevents partial turn-on of either MOSFET under brownout |
| TTL/CMOS input compatibility | 1.4V logic low threshold with 300mV hysteresis - interfaces directly with microcontrollers and PWM controllers without level shifters |
| 1.5A peak gate drive capability | Supports driving multiple parallel MOSFETs (up to five) with minimal speed degradation - reduces RDS(ON) and thermal stress in high-current designs |
Applications
| Motor Control | Synchronous Buck Regulator |
|---|---|
Use Scenario: Driving high-side and low-side N-channel MOSFETs in a 3-phase inverter for BLDC motor commutation. IC Role / Device Role / Timing Role: Half-bridge gate driver providing isolated, nonoverlapping top/bottom gate signals with adaptive shoot-through protection. Use Value: Enables efficient, reliable motor phase switching up to 60V bus voltage without external level shifters or timing ICs. |
Use Scenario: Controlling high-current synchronous rectification in a 12V-input, 3.3V-output DC/DC converter. IC Role / Device Role / Timing Role: Dual gate driver delivering precise, high-speed top/bottom gate pulses with built-in dead-time control. Use Value: Achieves >95% efficiency by minimizing conduction and transition losses while supporting 100kHz+ switching frequencies. |
| Class D Audio Amplifier | Industrial Power Transducer Driver |
Use Scenario: Driving half-bridge output stage in a 100W Class D amplifier with PWM carrier >300kHz. IC Role / Device Role / Timing Role: High-slew-rate gate driver ensuring clean, low-distortion switching transitions into capacitive loads. Use Value: Delivers 180ns transitions into 10,000pF, reducing THD+N and EMI generation in audio-frequency switching. |
Use Scenario: Controlling high-current inductive loads (e.g., solenoids, actuators) in factory automation systems. IC Role / Device Role / Timing Role: Robust gate driver with industrial temp rating and undervoltage lockout for harsh 24V/48V DC control rails. Use Value: Ensures fail-safe operation during line dips or cold starts, preventing MOSFET latch-up or thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar half-bridge gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IRS21844PbF | Higher VBS max (600V), no integrated boost regulator - requires external bootstrap diode/capacitor | Targeted at higher-voltage AC-DC and PFC stages; lacks DC-operation support | Choose when operating >60V or needing higher isolation; accept added external components for bootstrap |
| LM5109BMAX/NOPB | Fixed 120ns dead time, no gate feedback monitoring - relies on fixed timing rather than adaptive sensing | Optimized for cost-sensitive buck converters; less tolerant of MOSFET parameter variation | Choose for simpler, lower-cost designs where MOSFET matching is feasible and 100% duty cycle not required |
Compared with IRS21844PbF and LM5109BMAX/NOPB, the LT1336IN#PBF uniquely combines adaptive shoot-through protection, integrated boost regulation for true DC operation, and industrial temperature qualification - making it optimal for high-reliability motor control and synchronous buck designs demanding robustness at extended duty cycles.
Availability
LT1336IN#PBF is available at Aetrix Electronics and suitable for industrial motor control, synchronous buck regulators, and Class D audio amplifiers requiring stable component supply across –40°C to +85°C ambient conditions.
Supply support for LT1336IN#PBF 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 its precision analog and power management product lines with full datasheet, simulation model, and application support.
The LT1336IN#PBF belongs to Linear's high-performance power MOSFET driver family, designed specifically for robust, high-efficiency half-bridge switching in motor drives and DC/DC converters where shoot-through immunity and high-duty-cycle operation are critical.
FAQ
What is the maximum high-side voltage the LT1336IN#PBF can drive?
The LT1336IN#PBF supports a top source voltage (TSOURCE) range of –5V to 60V, meaning it can drive the gate of an N-channel MOSFET whose source sits at up to 60V relative to signal ground. This enables use in half-bridge configurations with HV rails up to 60V, as confirmed in Absolute Maximum Ratings and Applications Information sections.
Does the LT1336IN#PBF require external components for bootstrap operation?
Yes - the LT1336IN#PBF requires external components for bootstrap functionality: a bootstrap diode (e.g., 1N4148), bootstrap capacitor (≥1µF), and optionally an inductor/resistor network if using the integrated boost regulator for >90% duty cycle. The datasheet provides recommended values (200µH inductor, 2Ω sense resistor) and schematics for both boost and flyback topologies.
How does the LT1336IN#PBF prevent shoot-through in half-bridge configurations?
The LT1336IN#PBF prevents shoot-through via hardware-enforced adaptive nonoverlapping drive: it monitors gate voltage via TGATEFB and BGATEFB pins, and delays turning on one MOSFET until the other's VGS has fallen below 2.9V (top) or 2.5V (bottom). This eliminates reliance on matched MOSFETs or precise timing control, as explicitly described in Features and Applications Information.
What is the purpose of the ISENSE pin on the LT1336IN#PBF?
The ISENSE pin (Pin 1) serves as the current sense input for the internal boost regulator's hysteretic current-mode controller. When used with an external RSENSE (e.g., 2Ω), it sets the peak inductor current (~240mA), determining boost regulator output current capability and stability. If the boost function is unused, ISENSE may be left open, per Pin Functions description.
Can the LT1336IN#PBF operate with a 10V supply?
Yes - the LT1336IN#PBF operates over a supply voltage range of 10V to 15V, with V+ undervoltage lockout thresholds specified at 7.8V (shutdown) and 8.4V (start-up). At 10V supply, all electrical characteristics including gate drive voltage (11–12V), timing parameters, and undervoltage hysteresis remain fully functional across the –40°C to +85°C range.
LT1336IN#PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Driven Configuration:
- Half-Bridge
- Channel Type:
- Independent
- Number of Drivers:
- 2
- Gate Type:
- N-Channel MOSFET
- Voltage - Supply:
- 10V ~ 15V
- Logic Voltage - VIL, VIH:
- 0.8V, 2V
- Current - Peak Output (Source, Sink):
- 1.5A, 1.5A
- Input Type:
- Non-Inverting
- High Side Voltage - Max (Bootstrap):
- 60 V
- Rise / Fall Time (Typ):
- 130ns, 60ns
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
LT1336IN#PBF FAQ
1.How can I place an order for LT1336IN#PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for LT1336IN#PBF 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 LT1336IN#PBF reliable?
The price and inventory of LT1336IN#PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LT1336IN#PBF is usually 5 days.
3.What payment methods are accepted for LT1336IN#PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LT1336IN#PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LT1336IN#PBF?
LT1336IN#PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LT1336IN#PBF 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 LT1336IN#PBF?
For technical support, including LT1336IN#PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LT1336IN#PBF requirements.
6.How does Aetrix verify that LT1336IN#PBF is sourced from the original manufacturer or authorized distributors?
All LT1336IN#PBF 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 LT1336IN#PBF meets industry standards.
7.What is the process for return or replacement of LT1336IN#PBF?
All LT1336IN#PBF units undergo pre-shipment inspection (PSI). If there is an issue with LT1336IN#PBF, 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 LT1336IN#PBF part is unused and in its original packaging.
Return procedure for LT1336IN#PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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