SC2422 Semtech Corporation, SC2422 Datasheet - Page 3

• Manufacturer Part Number: SC2422
• Description: BIPHASE CURRENT MODE CONTROLLER
• Manufacturer: Semtech Corporation

PRELIMINARY - August 7, 2000
ELECTRICAL CHARACTERISTICS (Cont)
Unless specified: V
PARAMETER
Current Sense Amplifier
Amplifier Gain
Input Offset Voltage,
Input Referred
CMRR
PSRR
Input Common Mode Range
Max Differential Signal/
Current Limit Threshold
I-Limit Delay
Protection
UVLO Ramp-up Threshold
UVLO Ramp-down Threshold
Outputs (OUT 1, OUT 2)
Max Duty Cycle
Duty Match
Typical Output Voltage Swing
VID Logic Threshold
VID Logic Pin Bias Current
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.
© 2000 SEMTECH CORP.
CC
= +5V, T
AMB
Current limit activation to OUT 1 & OUT
= 25°C, R
Per phase, F
R
R
SOURCE
SOURCE
(V
(V
V
V
REF
ICM
OC-
OC-
CC
CONDITIONS
2 switching off
F
BIPHASE CURRENT MODE
CONTROLLER
= 9 ~ 14V @ DC
= 9 ~ 14V @ DC
= 11.5k .
R
- V
- V
OSC
V
R
UVLO pin = 20k
UVLO pin = 20k
L
OC-
L
V
OC+
OC+
= 100k
= 500kHz
= 10k
IN
- V
OSC
= 0
) < 100mV
) < 100mV
OC+
= 500kHz
652 MITCHELL ROAD NEWBURY PARK CA 91320
MIN
0.8
-.5
.8
.2
V
1.475
1.375
TYP
CC
100
0.3
26
80
80
60
47
12
4
+/-
MAX
2.5
3.3
.5
2
SC2422A
UNITS
mV
mV
dB
dB
dB
µA
ns
%
%
V
V
V
V
V
3