SC2422A

BIPHASE CURRENT MODE

CONTROLLER

© 2000 SEMTECH CORP.

652 MITCHELL ROAD NEWBURY PARK CA 91320

PRELIMINARY - August 7, 2000

3

ELECTRICAL CHARACTERISTICS (Cont)

Unless specified: V

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Current Sense Amplifier

Amplifier Gain

(V

26

dB

Input Offset Voltage,

Input Referred

(V

4

mV

CMRR

V

80

dB

PSRR

V

80

dB

Input Common Mode Range

V

0.3

Max Differential Signal/

Current Limit Threshold

V

100

mV

I-Limit Delay

Current limit activation to OUT 1 & OUT

2 switching off

60

ns

Protection

UVLO Ramp-up Threshold

R

1.475

V

UVLO Ramp-down Threshold

R

1.375

V

Outputs (OUT 1, OUT 2)

Max Duty Cycle

Per phase, F

47

%

Duty Match

F

-.5

.5

%

Typical Output Voltage Swing

R

.8

2.5

V

R

.2

3.3

V

VID Logic Threshold

0.8

2

V

VID Logic Pin Bias Current

V

12

µA

Note:

1. If the VID pins are driven high by an external source (in contrast to being left open), then all VIDs input will need

to be externally pulled high. If VIDs are left open, no external pull-up is required.

2. This device is ESD sensitive. Use of standard ESD handling precautions is required.