NCV8870: Non-Synchronous Boost Controller, Automotive Grade
The NCV8870 is an adjustable output non-synchronous boost controller which drives an external N-channel MOSFET. The device uses peak current mode control with internal slope compensation. The IC incorporates an internal regulator that supplies charge to the gate driver. Protection features include internally-set soft-start, undervoltage lockout, cycle-by-cycle current limiting, hiccup-mode short-circuit protection and thermal shutdown. Additional features include low quiescent current sleep mode and externally-synchronizable switching frequency.
Features- Peak Current Mode Control with Internal Slope Compensation
- 1.2 V 2% Reference voltage
- Wide Input Voltage Range of 3.2 V to 40 Vdc, 45 V Load Dump
- Input undervoltage lockout (UVLO)
- Internal SoftStart
- Low quiescent current in sleep mode
- Cycle-by-cycle current limit protection
- Hiccup-mode short-circuit protection (SCP)
- Thermal shutdown (TSD)
| Benefits- Good transient response over a wide input voltage and load range
- Accurate voltage regulation
- Works in a wide variety of applications
- Disables start up in undervoltage conditions
- Decreases inrush current
- Very low off current
- Protects against over current conditions
- Protects against short circuit faults
- Thermally protects IC
|
Applications- Start-Stop systems
- SEPIC (Non-inverting Buck Boost)
- Direct Gas Injection
| End Products |
Design & Development Tools (1)
Package Drawings (1)
Data Sheets (1)
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| NCV887000D1R2G | Active | AEC Qualified
PPAP Capable
Pb-free | SOIC-8 | 751-07 | 1 | Tape and Reel | 2500 | $0.825 |
| NCV887001D1R2G | Active | AEC Qualified
PPAP Capable
Pb-free | SOIC-8 | 751-07 | 1 | Tape and Reel | 2500 | $0.825 |
Specifications
| Product | Topology | Phases | Control Mode | VCC Min (V) | VCC Max (V) | fSW Typ (kHz) | tres Typ (ns) |
|---|
| NCV887000D1R2G | Step-Up
Step-Up/Step-Down | 1 | Current Mode | 3.2 | 45 | 50 | |
| NCV887001D1R2G | Step-Up
Step-Up/Step-Down | 1 | Current Mode | 3.2 | 45 | 100 | |
