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U6820BM PDF Data sheet ( 特性 )

部品番号 U6820BM
部品説明 Dual Quad BCDMOS Driver IC
メーカ ATMEL Corporation
ロゴ ATMEL Corporation ロゴ 



Total 11 pages
		

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U6820BM Datasheet, U6820BM PDF,ピン配置, 機能
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Features
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
Description
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 half-
bridges or 2 H-bridges on the pc board. The U6820BM communicates with a micro-
controller 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 1. Block Diagram
VCC
6
HS4 HS3 HS2 HS1
16 9 8 1
Dual Quad
BCDMOS
Driver IC
U6820BM
14
STATUS
CS 11
CLK 12
DI 13
V CC
Current
limiter
Current
limiter
HHHH L L L L
SSSSSSSS
43 2143 21
Input Register
Control
logic
V CC
Current
limiter
Current
limiter
Current
limiter
Current
limiter
3
VS
Thermal protection
V CC
Power-on reset
Current
limiter
Current
limiter
V CC
5 GND S
4
GNDCC
15
LS4
10
LS3
72
LS2 LS1
Rev. 4527ABCD03/02
1

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Dual Quad BCDMOS Driver IC

ATMEL Corporation
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