TPIC44H01DA datasheet(22/28 Pages) TI

Part #	TPIC44H01DA

Description	4-CHANNEL SERIAL AND PARALLEL HIGH-SIDE PRE-FET DRIVER

PDF	28 Pages

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Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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22 / 28 page

TPIC44H01

4-CHANNEL SERIAL AND PARALLEL HIGH-SIDE PRE-FET DRIVER

SLIS088 – SEPTEMBER 1998

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

PRINCIPLES OF OPERATION

To demonstrate how V(COMPx) voltage is reflected down from V(PWR) to establish the high-side V(OVDS)

threshold, Figure 15 shows both waveforms. Figure 16 illustrates a typical V(SRCx) voltage waveform as

compared to V(OVDS) during a normal turn-on transition.

–20

100

t – Time – ms

140

180

220

V(OVDS) Voltage,

V(PWR)= 8 V

Dynamic V(COMPx),

V(peak) = 2.5 V,

V(sustained) = 0.2 V

Figure 15. V(COMPx) Mirrored From V(PWR) to Generate V(OVDS) Threshold

–20

100

t – Time – ms

140

180

220

V(OVDS) Voltage,

V(PWR) = 8 V

Typical V(SRCx) Voltage Waveform

Parallel Input or SDI Bit

Figure 16. V(OVDS) Compared to V(SRCx)

TPIC44H01DA Datasheet(PDF) 22 Page - Texas Instruments