Summary
The ISL78227EV1Z board demonstrates the 2-phase synchronous boost operation of the ISL78227. It verifies the high efficiency of synchronous boost operation and all the features of the IC including input Constant Current (CC) control, analog/digital tracking, diode emulation, phase dropping, etc.
The ISL78227EV1Z demonstrates ISL78227 as the controller of a high efficiency 2-phase synchronous boost.
The ISL78227EV1Z demonstrates the IC’s unique function of accepting either digital or analog signals for the user to adjust the reference voltage externally.
The ISL78227EV1Z demonstrates the ISL78227’s unique feature of average Constant Current (CC) control for the input current. The board can have the average input current as a controlled constant without shutdown, which helps the user to optimize the system with the power devices’ capability that is fully utilized by the well-controlled constant input current.
The ISL78227EV1Z has connector options to select Continuous Conduction Mode (CCM), Diode Emulation (DE) and Phase Dropping (PH_DROP) modes.
Two ISL78227EV1Z evaluation boards can be stacked to demonstrate 2 ICs operating in parallel to control a 4-phase boost regulator.
The ISL78227EV1Z demonstrates ISL78227 as the controller of a high efficiency 2-phase synchronous boost.
The ISL78227EV1Z demonstrates the IC’s unique function of accepting either digital or analog signals for the user to adjust the reference voltage externally.
The ISL78227EV1Z demonstrates the ISL78227’s unique feature of average Constant Current (CC) control for the input current. The board can have the average input current as a controlled constant without shutdown, which helps the user to optimize the system with the power devices’ capability that is fully utilized by the well-controlled constant input current.
The ISL78227EV1Z has connector options to select Continuous Conduction Mode (CCM), Diode Emulation (DE) and Phase Dropping (PH_DROP) modes.
Two ISL78227EV1Z evaluation boards can be stacked to demonstrate 2 ICs operating in parallel to control a 4-phase boost regulator.
Specifications
| Manufacturer | Renesas Electronics Corporation |
|---|---|
| Category | AC/DC and DC/DC Conversion |
| Sub-Category | DC/DC SMPS - Single Output |
| Eval Board Part Number | ISL78227EV1Z-ND |
| Eval Board Supplier | Renesas Electronics Corporation |
| Eval Board |
Normally In Stock
|
| Topology |
Step Up
|
| Outputs and Type |
1 Non-Isolated
|
| Voltage Out: Factory Set |
36 V
|
| Current Out |
12 A
|
| Voltage In |
7.5 ~ 30 V
|
| Efficiency @ Conditions |
>90%, 12V in, 36V @ 0.45 ~ 12 A (DE w/o Ph. drop)
>90%, 12V in, 36V @ 0.28 ~ 12 A (DE w/ Ph. drop) >85%, 12V in, 36V @ 0.42 ~ 12 A (CCM Mode) |
| Voltage Out Range |
5 ~ 55 V
|
| Features |
Current Limit (Adj. or Fixed)
Fault Indication LDO Regulator(s), On-Chip Light Load Mode Over Current Protection Over Voltage Protection Power Good Output Shutdown, Enable, Standby Soft Start Under Voltage Protection, Brown-Out |
| Switching Frequency |
200 kHz
|
| Standby Current [Typical] |
200 nA
|
| Quiescent Current [Typical] |
8 mA
|
| Component Count + Extras |
104 + 39
|
| Internal Switch |
No
|
| Design Author |
Intersil
|
| Application / Target Market |
Automotive
Power: Auxiliary Power Supply Power: Industrial Power Telecom |
| Standby Current [Maximum] |
1 µA
|
| Quiescent Current [Maximum] |
10 mA
|
| Main I.C. Base Part |
ISL78227
|
| Date Created By Author | 2016-01 |
| Date Added To Library | 2016-03 |
