LX1684CD-TR MICROSEMI [Microsemi Corporation], LX1684CD-TR Datasheet - Page 3

• Manufacturer Part Number: LX1684CD-TR
• Description: Voltage-Mode PWM Controller
• Manufacturer: MICROSEMI [Microsemi Corporation]

Copyright © 2000
Rev. 1.0c, 2005-03-08
Unless otherwise specified, the following specifications apply over the operating ambient temperature 0°C
otherwise noted. Test conditions: V
REFERENCE
Reference Voltage
OSCILLATOR
ERROR AMPLIFIER
CURRENT SENSE
OUTPUT DRIVERS
UVLO AND SOFT-START (SS)
SUPPLY CURRENT
Frequency
Ramp Amplitude
Input Resistance
Current Set
V
Current Sense Delayed
Drive Rise Time, Fall Time
Drive High
Drive Low
V
Hysteresis
SS Resistor
SS Output Enable
Hiccup Duty Cycle
V
Static Supply Current V
5V
TRIP
CC5
C1
Dynamic Supply Current
Start-Up Threshold
TM
Parameter
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
C1
CC
=5V, V
E L E C T R I C A L C H A R A C T E R I S T I C S
Symbol
V
DC
F
T
I
V
I
T
V
V
V
R
V
I
R
RAMP
I
VCC
SET
VC1
OSC
CSD
CD
RF
DH
EN
C1
FB
DL
ST
SS
IN
HIC
=16V
Integrated Products Division
V
V
V
V
C
I
I
V
C
Out Freq = 175kHz, C
> 0.3V
V
V
SOURCE
SINK
OUT
OUT
OUT
CS
C1
SS
SS
L
SS
= 3000pF
> 4.0V
= 0.1µF, F
< 0.3V ; outputs low (disable), V
> 0.3V ; outputs low (disable)
®
= V
Microsemi
= 20mA, V
=V
=V
= V
FB
FB
= 20mA, V
CC
FB
, T
, 0°C < T
–0.4V
A
=25°C
Test Conditions
REQ
C1
=16V
=100Hz
C1
A
=16V
< 70°C
L
=3000pF, Synch., V
Voltage-Mode PWM Controller
P
RODUCTION
C1
= 16V
SS
D
ATA
1.237
1.231
0.25
Min
135
300
≤
4.0
40
13
T
S
A
HEET
≤
LX1684
1.25
1.25
4.25
0.10
Typ
175
380
70°C except where
1.0
0.1
0.3
20
45
50
14
22
12
30
7
9
1.262
1.269
Max
0.35
200
420
0.2
4.5
14
40
12
9
LX1684
Units
VPP
µsec
kHz
mV
mA
mA
mA
kΩ
kΩ
µA
nS
%
V
V
V
V
V
V
V
Page 3