STMicroelectronics A6986I
The A6986I is an automotive grade device specifically designed for the isolated buck topology. The 100% duty cycle capability and the wide input voltage range meet the cold crank and load dump specifications for automotive systems. The primary output voltage can be accurately adjusted, whereas the isolated secondary output is derived by using a given transformer ratio.| Part No. | A6986I |
|---|---|
| Datasheet | A6986I Download |
| Manufacturer |  STMicroelectronics |
| Description | Automotive 38V 5W synchronous iso-buck converter |
| Buy | Stock & Price |
FEATURES
HTSSOP16 (RTH= 40 °C/W) Maturity status link A6986I● AEC-Q100 Grade 1 qualified
● Designed for iso-buck topology
● 4 V to 38 V operating input voltage
● Primary output voltage regulation / no optocoupler required
● 1.9 A typical sink peak primary current capability
● Peak current mode architecture in forced PWM operation
● 300 ns blanking time
● 8 µA IQ-SHTDWN
● Adjustable fSW and synchronization
● Embedded primary output voltage supervisor
● Adjustable soft-start time
● Internal primary current limiting
● Overvoltage protection
● RDS(on) HS = 180 mΩ, RDS(on) LS = 150 mΩ
● Thermal shutdown
APPLICATIONS
● Automotive isolated IGBT/SiC MOSFET gate drive supply● OBC (On-board charger) for HEV/EV
● Electric traction systems
DESCRIPTION
No optocoupler is required. The primary sink capability typically up to 1.9 A (even during soft-start) allows a proper energy transfer to the secondary side as well as enabling a tracked soft-start of the secondary output. The control loop is based on a peak current mode architecture and the device operates in forced PWM.
