ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：INNOSWITCH3-AQ 1700V 50W
- Series：InnoSwitch™3-AQ
- Mfr：Power Integrations
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Isolation：Isolated
- Internal Switch(s)：Yes
- Voltage - Breakdown：1700V
- Topology：Flyback
- Voltage - Start Up：30 V
- Voltage - Supply (Vcc/Vdd)：30V ~ 1000V
- Duty Cycle：-
- Frequency - Switching：25kHz ~ 95kHz
- Fault Protection：Current Limiting, Over Temperature, Over Voltage, Short Circuit
- Control Features：Frequency Control, Soft Start
- Operating Temperature：-40°C ~ 125°C (TA)
- Package / Case：24-PowerSMD Module (0.425", 10.80mm Width), 17 Leads
- Supplier Device Package：InSOP-24D
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
- Power (Watts)：50 W
Download product information
Overview
The INN3947CQ-TL is an isolated AC/DC converter from the InnoSwitch3-AQ series, designed for automotive applications. It integrates a 1700V silicon switch with primary-side control and FluxLink feedback. The device supports flyback topology with a switching frequency of 132 kHz and delivers up to 50 W output power. It operates within an input voltage range of 40 V to 1200 V DC and features a quiescent current of 266 uA. The component functions in temperatures from -40°C to +150°C and is housed in an InSOP-24D package.
Feature Summary
- Integrates 1700V switch, QR/CCM controller, and secondary sensing in a single IC
- Utilizes HIPOT-isolated FluxLink feedback for precise regulation across wide input ranges
- Includes comprehensive protection features such as line overvoltage, output OVP, and thermal shutdown
Applications
- Auxiliary and bias power supplies for traction inverters
- Power supplies for DC-DC converters
- On-board charger auxiliary circuits
Procurement Notes
Verify the specific suffix TL against official Power Integrations documentation to confirm reel packaging specifications. Ensure the part number matches the required 1700V rating and InSOP-24D package variant. Cross-reference the manufacturer's latest datasheet for any product change notifications or compliance updates prior to finalizing procurement orders.
Selection Notes
Select this component for designs requiring high-voltage isolation and automotive reliability. The integrated 1700V switch suits high-input voltage systems up to 1200V DC. Consider the InSOP-24D package for space-constrained layouts. Verify that the 132 kHz switching frequency aligns with electromagnetic interference requirements and thermal management capabilities of the target application environment.
Part Context
This part belongs to the InnoSwitch3-AQ family, which combines primary and secondary controllers with safety-rated feedback. The series is engineered to simplify flyback converter design while maintaining high efficiency. The CQ designation indicates the integration of a 1700V switch, distinguishing it from lower voltage variants within the same automotive-grade lineup.
Replacement Considerations
Consult official substitution lists for compatible InnoSwitch3-AQ variants. Verify pinout compatibility and electrical parameter alignment before replacing.
