Automotive Load Switch with OVP and RB Protection
Description
The KTS1642Q is low-resistance, electronically controlled load switches, with enhanced protection features, used to protect loads from abnormal power supply or load problems. Operating from a wide input supply voltage of between 4V and 40V, the KTS1642Q protects the system from reverse input supplies down to -28V.
Integrating two N-Channel MOSFETs, the device includes fixed over-voltage protection of 20.3V along with over-temperature protection with auto-retry. Following an over-voltage condition only, KTS1642Q will automatically resume operation, when the over-voltage condition is removed.
An ENABLE pin allows the MOSFET switch to be enabled or disabled, placing the device in a low current shutdown mode. System monitoring is provided by a fault FLAG.
To inform the system that the battery or power supply is connected, BDET mirrors the input voltage less the drop across the reverse battery protection MOSFET and sources up to a maximum of 500mA.
Further protection includes over-temperature shutdown and the input pin is fully ESD protected to comply with the IEC61000-4-2 (Level 4) specification.
The KTS1642Q is packaged in an advanced, fully green compliant, TDFN44-12 package.
Features
- Wide input operating range from 4V to +40V DC Input
- Low resistance MOSFET Switch typ. 41mΩ
- Reverse Battery Protection to -28V
- Fixed over-voltage protection
- Fixed: 20.3V ± 0.8V
- Fast OVP response time typ. 360ns
- Continuous output current up to 6A
- Over-temperature Protection with Auto-Retry
- Open drain fault flag
- Shutdown pin with low shutdown current
- Battery detection output
- Input ESD protection to IEC61000-4-2 (Level 4)
- Contact: ±8kV
- Air: ±15kV
- Other pins HBM: ±2kV to AEC Q100-002
- AEC-Q100 Qualified
- Meets automotive ISO7637 transient requirements with suitable external TVS diodes
- Pb-free TDFN44-12 package
- -40°C to +125°C operating temperature range
Applications
- Automotive Load Switching
- Reverse Power Supply Protection
- Telecom/Server/Networking System
- Industrial and Medical Systems
- Portable Instrumentation
Packaging Information
| Package | Dimensions | Bumps | Package Code |
| TDFN44-12 | 4.00mm x 4.00mm x 0.75mm | 12 | DV |
Parameters
| VIN (min) | VIN (max) | ON Resistance (mΩ) | Max Current (A) | OVP Trip Point (V) | OVP Turn Off Response Time (ns) | IEC 61000-4-2 ESD (Air Discharge) | IEC 61000-4-2 ESD (Contact Discharge) |
| 6.0V | 40V | 41.0 | 6.0 | 27.0V | 360 | ±15kV | ±8kV |
Technical Documentation
| Description | Documents | Type |
|---|---|---|
| Datasheet | KTS1642Q-04b | |
| Package Outline Drawing | TDFN44-12 DV POD |
Purchase
| Part Number | Marking | Operating Temperature | Package |
| KTS1642QGDV-TR | TDYWZaabbccc | -40°C to +125°C | TDFN44-12 |
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