onsemi NCV7755 Octal High-Side Driver

onsemi NCV7755 Octal High-Side Driver is an automotive-grade integrated driver offering eight high-side switches. The NCV7755 enables drive capability up to 700mA per channel and is protected from overload and overtemperature conditions. Each channel has integrated output clamps intended for switching inductive loads and multiple start pulses for bulbs. Furthermore, the clamps can be mapped to two internal PWM generators for LED loads. The device implements an SPI for output control and diagnostic reporting. Also, the INx pins can be mapped to any of the outputs for direct control. The dedicated limp-home mode enables operational control of two high-side drivers via logic input pins.

For optimal thermal performance, the onsemi NCV7755 is housed in an SSOP-24 exposed pad package.

Features

8x high-side channels
- For relays (flyback clamps)
- Bulbs (multiple pulse in-rush scheme)
- LEDs (internal PWM generator)
- 2.3A peak current (maximum)
- R_DS(on) 0.9Ω (typical), 1.8Ω (maximum)
- Paralleling of two output pairs is allowed
SPI Control (16 Bit)
- Frame error detection (16 Bits + 8n Bits)
- Daisy chain capable
Two input pins with mapping for PWM operation
Low quiescent current in sleep mode
Limp home mode with auto-retry
Supports cranking voltage of 3V minimum on VS
3.3V and 5V compatible digital input supply range

Fault reporting
- Openload (OFF or ON)
- Overload
- Overtemperature
- Power supply fail (VS, VDD undervoltage)
- Output short to GND and battery
Reverse polarity protection
Loss of ground protection
Power-on Reset (VDD)
SSOP-24 with an exposed pad
NCV prefix for automotive
- Site and change control
- AEC−Q100 qualified

Applications

Automotive body control units
Automotive engine control units
Relay drives

Bulb drives
LED drives

onsemi NCV7755 Octal High-Side Driver

Features

Applications

Application Diagram

Block Diagram

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