LX1660 Ver la hoja de datos (PDF) - Microsemi Corporation
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LX1660 Datasheet PDF : 15 Pages
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PRODUCT DATABOOK 1996/1997
ADVANCED PWM CONTROLLER
PR O D U C T I O N D ATA S H E E T
LX1660/1661
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, 10.8 < VCC < 13.2, 0°C ≤ TA ≤ 85°C. Test conditions: VCC = 12V, T = 25°C.)
Parameter
Symbol
Test Conditions
LX1660
LX1661
Units
Min. Typ. Max. Min. Typ. Max.
Reference Section
Initial Output Voltage
Load Regulation
Short Circuit Current ISH
Timing Section
Off Time Initial
Off Time Temp Stability
Discharging Current
Ramp Peak
Ramp Peak-Valley
Ramp Valley Delay to Output
Turn Off Threshold
Error Comparator Section
Input Bias Current
Input Offset Voltage
EC Delay to Output
Synchronous Control Section
Synchronous Enable Threshold
Current Sense Section
Input Bias Current
Pulse By Pulse CL
CS Delay to Output
Output Drivers Section
Output Rise Time
Output Fall Time
Output Pull Down
Peak Current
UVLO and S.S. Section
Start-Up Threshold
Hysteresis
S.S. Sink Current
S.S. Sat Voltage
Enable Shutdown Threshold
Enable Bias Current
Enable Hysteresis
Supply Current Section
Dynamic Operating Current
Start-Up Current
Hiccup Section
Hiccup Factor “ON” Time
Hiccup Duty Cycle
VCC = 12V, IL = 100µA
VCC = 12V, IL = 10µA to 5mA
VREF = 1.96V
OT OTADJ = 1.8V, CT = 390pF
OTADJ = 3.5V, CT = 390pF
OTADJ = 1.8V to 3.5V
IDIS VNINV = 1.8V, VCT = 1.5V
VNINV = 3.5V, VCT = 1.75V
VP
VRPP OTADJ = 1.8V
OTADJ = 3.5V
10% Overdrive
VOFF (Voltage at OTADJ Pin)
IB
VFB = VSET
VIO
10% Overdrive
SYCEN
IB
1.8V < VCS+ = VCS < 3.5V
VCLP Initial Accuracy
10% Overdrive
TR VCL = VC2 = 12V, CL = 3000pF
TF VCL = VC2 = 12V, CL = 3000pF
VPD
VCC = VC = 0, IPULL UP = 2mA
IPK
tPULSE = 500ns
VST
VHYST
ISD
VOL
VEN
IEN
VCL = 10.1V
VCL = 9V, ISD = 20µA
IEN (Low), VEN = 0V
IEN (High), VEN = 2V
ICD VCC = VC = 12V, Out Freq = 200kHz, CL = 0
IST
VCL = 10V
(CHICCUP = 0.1µF typ.)
1.98 2 2.02 1.98 2 2.02 V
2
2
mV
24
24
mA
2
2
µS
1
1
µS
2
2
%
180 210 240 180 210 240 µA
180 210 240 180 210 240 µA
2
2
V
0.8 0.9 1.0 0.8 0.9 1.0 V
0.475 0.5 0.525 0.475 0.5 0.525 V
100
100
nS
0.6 0.9 1.2 0.6 0.9 1.2 V
0.1 1.0
0.1 1.0 µA
2
36 42 48 mV
150
150
nS
0.5 0.7 0.9 0.5 0.7 0.9 V
0.1 1
0.1 1 µA
80 90 100 80 90 100 mV
150
150
nS
70
70
1
1.0
70
nSec
70
nSec
1
V
1.0 A
9.85 10.15 10.45 9.85 10.15 10.45 V
0.31
0.31
V
23
23
mA
0.2 0.6
0.2 0.6 V
1.3 1.4 1.5 1.3 1.4 1.5 V
-0.5 -1
-0.5 -1 µA
0.5 1
0.5 1 µA
0.14 0.16 0.18 0.14 0.16 0.18 V
25
500 1000
25 mA
500 1000 µA
100
100
mS/µF
10
10
%
Copyright © 1998
Rev. 1.1 7/98
3
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