MC33879A 데이터 시트보기 (PDF) - Freescale Semiconductor

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MC33879A

Configurable Octal Serial Switch with Open Load Detect Current Disable

Freescale Semiconductor 

INTERNAL BLOCK DIAGRAM

INTERNAL BLOCK DIAGRAM

VDD

__

CS

SCLK

DI

DO

EN

IN5

IN6

EP

~50 A

~110 k

~50 A

~50 A

SPI and

Interface

Logic

SPI Bit 0

Enable

SPI Bit 4

IN5

Exposed Pad

VPWR

Internal

Bias

Power Supply

Charge

Pump

Over-voltage

Shutdown/POR

Sleep State

GND

OV, POR, SLEEP

Typical of all 8 output drivers

TLIM

Gate

Drive

Control

Current

Limit

+

‚

+

‚

Open / Short

Comparator

Open

Load

Detect

Current

~80 A

+‚

~4.0 V Open/Short

Threshold

D1

D2

D3 Drain

D4 Outputs

D7

D8

S1

S2

S3 Source

S4 Outputs

S7

S8

TLIM

Gate

Drive

Control

Current

Limit

+

‚

+

‚

Open / Short

Comparator

D5

Open

Load

D6

Detect

Current

~80 A

S5

S6

+‚

~4.0 V Open/Short

Threshold

Drain

Outputs

Source

Outputs

Figure 2. 33879 Simplified Internal Block Diagram

Analog Integrated Circuit Device Data

Freescale Semiconductor

33879

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