ASM8I1843F-08-MX ALSC [Alliance Semiconductor Corporation], ASM8I1843F-08-MX Datasheet - Page 5

• Manufacturer Part Number: ASM8I1843F-08-MX
• Description: Voltage Mode PWM Controller with EMI Reduction
• Manufacturer: ALSC [Alliance Semiconductor Corporation]

June 2005
rev 0.6
Rise Time
Fall Time
Shoot Through Current
UVLO SECTION
Start threshold
Stop Threshold
PWM SECTION
PWM frequency
Duty Cycle Range
TOTAL DEVICE
Start up Current
Peak Output Current
Operating Current
Thermal Shutdown
Thermal Recovery
SPREAD SPECTRUM SECTION
Modulation Rate
Modulation Depth
OSCILLATOR SECTION
Frequency change with Voltage
Oscillator Amplitude
Temperature Stability
Parameter
Voltage Mode PWM Controller with EMI Reduction
Notice: The information in this document is subject to change without notice.
Symbol
V
Df/d V
V
I
I
th(START)
OUT(PK)
CC(OPR)
th(STOP)
T
I
V
t
OSC
t
f
ST
R
F
S
Z
CC
T
T
V
Junction Temp
Refer R
V
A
A
FB
DD
= 25°C, C
= 25°C, C
= 0; I
= 15V
ASM8P18S43ER,
ASM8P18S45ER,
ASM8P18S43ER,
ASM8P18S42ER,
ASM8P18S44ER,
ASM8P18S42ER,
ASM8P18S43ER,
ASM8P18S42ER,
ASM8P18S42ER
ASM8P18S44ER
ASM8P18S45ER
ASM8P18S44ER
ASM8P18S45ER
ASM8P18S43ER
ASM8P18S45ER
ASM8P18S44ER
ASM8P18S42,
ASM8P18S42,
ASM8P18S42,
ASM8P18S42,
ASM8P1843,
ASM8P1843,
ASM8P1843,
Conditions
D
SNS
Resistor Vs. % Modulation Depth Plot
L
L
= 0.5;
=1nF
=1nF
ASM8P18S44ER / ASM8P18S45ER
Min
30
30
40
ASM8P18S42 / ASM8P18S42ER
0
0
ASM8P1843 / ASM8P18S43ER
1000
Typ
15.4
10.2
1/20
1/10
0.04
155
126
7.8
6.7
0.1
0
5
Max
0.05
1.66
400
275
50
95
6
of Switching
Frequency
V (Pk-Pk)
Units
(KHz)
%/°C
5 of 11
kHz
mA
mA
nS
nS
?A
°C
°C
%
%
V
V