ICs ideal for On Board Chargers
The On Board Charger (OBC) converts AC power supplied from either a household outlet or charging station into DC power, which charges the high-voltage battery, drive for EV and PHEV.
The On Board Charger (OBC) uses low on-resistance Si IGBTs or SiC MOSFETs to reduce conversion loss. The on-resistance has the characteristic to drop as the gate voltage rises so it is recommended to design a gate drive circuit using, for example, an Si IGBT with a high voltage of around 15V or an SiC MOSFET with a high voltage of around 18V.
ABLIC has a lineup of LDOs that can output a high voltage required for the gate driver circuit. In addition, our lineup offers LDOs with built-in watchdog timers for monitoring MCUs, and operational amplifiers ideal for current monitoring of PFC. ABLIC undoubtedly provides ICs ideal for On Board Chargers (OBC).
ICs ideal for On Board Chargers
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*VD: Voltage detector (Reset IC) *LDO: Low-dropout regulator *WDT: Watchdog timer
ICs ideal for On Board Chargers
| Product | Recommended product | Applications and Features |
|---|---|---|
| LDO Regulator (Linear Regulator) | S-19212 | For use in gate driver circuits. The output voltage can be set between 2.5 to 16V. |
| LDO Regulator (Linear Regulator) | S-19213 | For use in gate driver circuits. The output voltage can be adjusted between 1.8 to 30V using an external resistor. |
| Flyback Controller (Switching regulator) | S-19990 | Low voltage operation (from 3.0V). 60μA quiescent current. The industry's smallest package. |
| Watchdog Timer | S-1951x | With reset and LDO regulator functions. Current consumption of 3.0µA. |
| Operational amplifier | S-19630A | High-accuracy current detection. 36V operation, Rail-to-Rail input/output, low offset voltage of 50μV. |
| Operational amplifier | S-19611A | High-accuracy current detection. 5.5V operation, Rail-to-Rail input/output, low offset voltage of 100μV. |
Features
LDO Regulator S-19213 series
High output voltage
Ultra-low current consumption
An LDO regulator capable of outputting the high voltage required by a gate driver circuit
This is an LDO regulator with a 36V input, 1.8 to 30V output, 500mA output, an ultra-low current consumption of 5.0μA (typ.) and a high-power dissipation of 5.21W. This makes it ideal for the around 15 to 18V high-voltage gate driver circuits.
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High-accuracy Operational Amplifier S-19611A
Low offset voltage
Low voltage operation
Contributing to High-Accuracy Current Sensors
Low offset voltage enables high-accuracy current detection. Input Rail-to-Rail enables low-side and high-side current detection.
≫Learning more about the S-19611A
Series name
Operating voltage range: 2.65V to 5.5V
Low offset voltage: 100μV max.
Rail-to-Rail input and output
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