The NCV7705/NCV7706 is a powerful Driver−IC for automotive

body control systems. The IC is designed to control several loads in

the front door of a vehicle. The monolithic IC is able to control mirror

functions like mirror positioning, heating and folding. In addition,

NCV7706 includes the electro−chromic mirror feature. The device

features four high−side outputs to drive LEDs or incandescent bulbs

(up to 5/10 W). To allow maximum flexibility, all lighting outputs can

be PWM controlled thru PWM inputs (external signal source) or by an

internal programmable PWM generator unit. The

NCV7705/NCV7706 is controlled thru a 24 bit SPI interface with

in−frame response.

Features

• Operating Range from 5.5 V to 28 V

• Four High−Side and Four Low−Side Drivers Connected as

Half−Bridges

♦ 2x Half−bridges Iload = 0.75 A; RDS(on) = 1.6  @ 25°C

♦ 2x Half−Bridges Iload = 3 A; RDS(on) = 300 m @ 25°C

• Four High−Side Lamp Drivers

♦ 2x LED; Iload = 0.3 A; RDS(on) = 1.4  @ 25°C

♦ 1x 10 W; Configurable as LED Driver; Iload = 2.5 A;

RDS(on) = 300 m @ 25°C

♦ 1x 5 W; Configurable as LED Driver; Iload = 1.25 A;

RDS(on) = 600 m @ 25°C

• 1x High−Side Driver for Mirror Heating; Iload = 6 A;

RDS(on) = 100 m @ 25°C

• Electro Chromic Mirror Control (NCV7706 Only)

♦ 1x 6−Bit Selectable Output Voltage Controller

♦ 1x LS for EC Control; Iload = 0.75 A; RDS(on) = 1.6  @ 25°C

• Independent PWM Functionality for All Outputs

• Integrated Programmable PWM Generator Unit for All Lamp Driver

Outputs

♦ 7−bit / 10−bit Selectable Duty−cycle Setting Precision

• Programmable Soft−start Function to Drive Loads with Higher

Inrush Currents as Current Limitation Value

• Multiplex Current Sense Analog Output for Advanced Load

Monitoring

• Very Low Current Consumption in Standby Mode

• Charge Pump Output to Control an External Reverse Polarity

Protection MOSFET

• 24−Bit SPI Interface for Output Control and Diagnostic

• Protection Against Short−circuit, Overvoltage and

Over−temperature

• Downwards Pin−to−Pin and SPI Registers Compatible

with NCV7707

• AEC−Q100 Qualified and PPAP Compliant

• SSOP36−EP Power Package

• This is a Pb−Free Device

Typical Applications

• De−centralized Door Electronic Systems

• Body Control Units (BCUs)