TPIC3302

3-CHANNEL COMMON-DRAIN POWER DMOS ARRAY

SLIS021B – APRIL 1994 – REVISED JULY 1995

POST OFFICE BOX 655303

2–4

PARAMETER MEASUREMENT INFORMATION

Pulse Generator

50

Ω

Rgen

50

Ω

VGS

VDD = 25 V

DUT

VDS

TEST CIRCUIT

VDD

VDS(on)

tf

td(on)

tr

td(off)

VOLTAGE WAVEFORMS

VGS

VDS

RL

CL = 30 pF

(see Note A)

tdis

ten

10 V

0 V

NOTE A: CL includes probe and jig capacitance.

Figure 2. Resistive-Switching Test Circuit and Voltage Waveforms

Qg

10 V

VOLTAGE WAVEFORM

Qgd

Time

Gate Voltage

VGS

12-V

Battery

0.2

µF

50 k

Ω

0.3

µF

Current

Regulator

DUT

Same Type

as DUT

0

IG = 1 µA

IG Current-

Sampling Resistor

ID Current-

Sampling Resistor

VDD

Qgs = Qg – Qgd

TEST CIRCUIT

Qgs(th)

VDS

Figure 3. Gate-Charge Test Circuit and Voltage Waveform