U6820BM-MFP

U6820BM-MFP Datasheet


The U6820BM is a driver interface in BCDMOS technology with 8 independent driver stages having a maximum current capability of 50 mA each. Its partitioning into 4 high-side and 4 low-side driver stages allows an easy connection of either 4 halfbridges or 2 H-bridges on the pc board. The U6820BM communicates with a microcontroller via an 8-bit serial interface. Integrated protection against short circuit and overtemperature give added value. EMI protection and 2-kV ESD protection together with automotive qualification referring to conducted interference ISO/TR 7637/1 make this IC ideal for both automotive and industrial applications.

Part Datasheet
U6820BM-MFP U6820BM-MFP U6820BM-MFP (pdf)
Related Parts Information
U6820BM-MFPG3Y U6820BM-MFPG3Y U6820BM-MFPG3Y
U6820BM-MFPG3 U6820BM-MFPG3 U6820BM-MFPG3
PDF Datasheet Preview
• Four Short-circuit-protected High-side Drivers with a Maximum Current Capability of
50 mA Each
• Four Short-circuit-protected Low-side Drivers with a Maximum Current Capability of
50 mA Each
• ON Resistance High Side Ron < 10 Versus Total Temperature Range
• ON Resistance Low Side Ron < 7 Versus Total Temperature Range
• Short-circuit Detection of Each Driver Stage
• Disabling of Driver Stages in the Case of Short-circuit and Overtemperature Detection
• Independent Control of Each Driver Stage via an 8-bit Shift Register
• Status Output Reports Short-circuit Condition
• Status Output Reports when All Loads Are Switched Off
• Timing of Status Output Reset Signalizes Failure Mode
• Temperature Protection in Conjunction with Short-circuit Detection

The U6820BM is a driver interface in BCDMOS technology with 8 independent driver stages having a maximum current capability of 50 mA each. Its partitioning into 4 high-side and 4 low-side driver stages allows an easy connection of either 4 halfbridges or 2 H-bridges on the pc board. The U6820BM communicates with a microcontroller via an 8-bit serial interface. Integrated protection against short circuit and overtemperature give added value. EMI protection and 2-kV ESD protection together with automotive qualification referring to conducted interference ISO/TR 7637/1 make this IC ideal for both automotive and industrial applications.

Figure Block Diagram

VCC 6

Dual Quad BCDMOS Driver IC

U6820BM
14 STATUS

CS 11 CLK 12

DI 13

Current limiter

Current limiter

HHHH L 43 2143 21

Input Register

Control logic

Current limiter

Current limiter

Current limiter

Current limiter

Thermal protection

Power-on reset

Current limiter

Current limiter

V CC 5 GND S
4 GNDCC
15 LS4
10 LS3

Pin Configuration

Figure Pinning SO16

HS1 1 LS1 2 VS 3 GNDCC 4 GNDS 5 VCC 6 LS2 7 HS2 8
16 HS4 15 LS4 14 STATUS 13 DI 12 CLK 11 CS 10 LS3 9 HS3

Pin Description

GNDCC

GNDS

STATUS

Function Output high side 1 Output low side 1 Supply voltage 6 V to 18 V Digital ground Power ground Supply voltage 5 V external Output low side 2 Output high side 2 Output high side 3 Output low side 3 Set supply status chip select Clock line for 8-bit control shift register Data line for 8-bit control shift register Status output H = fault, diagnostic “H” if all driver stages are switched off Output low side 4 Output high side 4
2 U6820BM

U6820BM

Description of the Control Interface to the Microcontroller

The serial-parallel interface basically includes an 8-bit shift register SR , an 8-bit command register CR and a 4-bit counter.
Ordering Information

Extended Type Number U6820BM-FP

Package SO16

Remarks

Package Information

Package SO16

Dimensions in mm
technical drawings according to DIN specifications
13036
10 U6820BM

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Datasheet ID: U6820BM-MFP 519527