Overview
The L9856-TR is a high-voltage high-side driver manufactured by STMicroelectronics using BCD 'OFF-LINE' technology. This device is designed to drive N-Channel Power MOS transistors and features a high voltage rail capability of up to 160 V. The logic inputs are CMOS/TTL compatible, making it easy to interface with controlling devices. The L9856-TR is available in an SO-8 package and is suitable for a wide range of high-voltage applications.
Key Specifications
| Parameter | Min. | Typ. | Max. | Units |
|---|---|---|---|---|
| High side driver output stage voltage (VB) | VS+4.4 | - | VS+18 | V |
| High side floating supply offset voltage (VS) | -3.2 | - | 150 | V |
| Supply voltage (VCC) | 4.4 | - | 6.5 | V |
| Input voltage (VIN) | 0 | - | VCC | V |
| Reset input voltage (VRES) | 0 | - | VCC | V |
| Allowable offset voltage slew rate (dV/dt) | -50 | - | 50 | V/nsec |
| Switching frequency (FS) | - | - | 200 | kHz |
| Input-to-output turn-on propagation delay (tplhi) | 0.1 | - | 0.35 | µs |
| Input-to-output turn-off propagation delay (tphli) | 0.1 | - | 0.4 | µs |
| Operating temperature range | -40 | - | 125 | °C |
| Package | - | - | SO-8 | - |
Key Features
- High voltage rail up to 160 V
- dV/dt immunity ±50 V/nsec in full temperature range
- Driver current capability: 500 mA source, 500 mA sink
- Switching times 100 ns rise/fall with 2.5 nF load
- CMOS/TTL Schmitt trigger inputs with hysteresis
- Under voltage lock out
- Clamping on VCC
- Loading circuit for external Bootstrap capacitor
- Inverting input
- Reset circuitry
- SO-8 package
Applications
The L9856-TR is suitable for various high-voltage applications, including but not limited to:
- Power supply systems requiring high-side switching
- Industrial control systems
- Automotive systems
- High-voltage DC-DC converters
- Motor control and drive systems
Q & A
- What is the maximum high-side driver output stage voltage of the L9856-TR?
The maximum high-side driver output stage voltage is up to VS+18 V. - What is the supply voltage range for the L9856-TR?
The supply voltage range is from 4.4 V to 6.5 V. - What is the switching frequency capability of the L9856-TR?
The switching frequency capability is up to 200 kHz. - What type of inputs does the L9856-TR have?
The L9856-TR has CMOS/TTL Schmitt trigger inputs with hysteresis. - What is the operating temperature range of the L9856-TR?
The operating temperature range is from -40°C to +125°C. - What is the package type of the L9856-TR?
The package type is SO-8. - Does the L9856-TR have under voltage lockout protection?
Yes, the L9856-TR has under voltage lockout protection. - What is the driver current capability of the L9856-TR?
The driver current capability is 500 mA source and 500 mA sink. - Does the L9856-TR support external Bootstrap capacitor loading?
Yes, it supports loading circuit for external Bootstrap capacitor. - What are the typical switching times for the L9856-TR with a 2.5 nF load?
The typical switching times are 100 ns rise/fall with a 2.5 nF load.
