TL1466I

HIGHSPEED/PRECISION SIX CHANNEL

SWITCHING REGULATOR CONTROLLER

SLVS262 − FEBRUARY 2000

11

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

Dead−Time Input Voltage

(DTC−3)

PWM Comparator

Output Voltage

Output Waveform

(OUTPUT3)

Output Regulation Voltage

Monitor Waveform

(COMP3)

SCP Terminal Waveform

SCP Comparator Output

Power Supply Voltage

2.45 V TYP

1.5 V

1.5 V

1.5 V

tpe

1.35 V

0.65 V

H

L

H

L

Dead Time 100%

0 V

Vref

+0.7

1.5 V

H

L

VCC

0 V

Oscillator Triangle

Waveform (Note A)

Error Amplifier Output

(FEED BACK3)

† Protection enable time, tpe = (588 × 103 × Cpe) in seconds

NOTE A: The oscillator output of channel 1, 4, and 6 is reverse phase for channel 2, 3, and 5.

Figure 3. Timing Diagram (channel 3)