參數(shù)資料
型號(hào)： MC33025DWR2G
廠商： ON SEMICONDUCTOR
元件分類： 穩(wěn)壓器
英文描述： High Speed Double−Ended PWM Controller
中文描述： 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
封裝： LEAD FREE, SOIC-16
文件頁(yè)數(shù)： 2/20頁(yè)
文件大小： 482K
代理商： MC33025DWR2G
MC34025, MC33025
http://onsemi.com
2
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Power Supply Voltage
V
CC
30
V
Output Driver Supply Voltage
V
C
25
V
Output Current, Source or Sink (Note 1)
DC
Pulsed (0.5 s)
I
O
0.5
2.0
A
Current Sense, SoftStart, Ramp, and Error Amp Inputs
V
in
0.3 to +7.0
V
Error Amp Output and SoftStart Sink Current
I
O
10
mA
Clock and R
T
Output Current
I
CO
5.0
mA
Power Dissipation and Thermal Characteristics
SO16 Package (Case 751G)
Maximum Power Dissipation @ T
A
= +25
°
C
Thermal Resistance, JunctiontoAir
DIP Package (Case 648)
Maximum Power Dissipation @ T
= +25
°
C
Thermal Resistance, JunctiontoAir
P
D
R
JA
P
D
R
JA
862
145
1.25
100
mW
°
C/W
W
°
C/W
Operating Junction Temperature
T
J
+150
°
C
Operating Ambient Temperature (Note 2)
MC34025
MC33025
T
A
0 to +70
40 to +105
°
C
Storage Temperature Range
T
stg
55 to +150
°
C
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
ELECTRICAL CHARACTERISTICS
(V
CC
= 15 V, R
T
= 3.65 k , C
T
= 1.0 nF, for typical values T
A
= +25
°
C, for min/max values T
A
is the operating ambient temperature range that applies [Note 2], unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
REFERENCE SECTION
Reference Output Voltage (I
O
= 1.0 mA, T
J
= +25
°
C)
V
ref
5.05
5.1
5.15
V
Line Regulation (V
CC
= 10 V to 30 V)
Reg
line
2.0
15
mV
Load Regulation (I
O
= 1.0 mA to 10 mA)
Reg
load
2.0
15
mV
Temperature Stability
T
S
0.2
mV/
°
C
Total Output Variation over Line, Load, and Temperature
V
ref
4.95
5.25
V
Output Noise Voltage (f = 10 Hz to 10 kHz, T
J
= +25
°
C)
V
n
50
V
Long Term Stability (T
A
= +125
°
C for 1000 Hours)
S
5.0
mV
Output Short Circuit Current
I
SC
30
65
100
mA
OSCILLATOR SECTION
Frequency
T
J
= +25
°
C
Line (V
CC
= 10 V to 30 V) and Temperature (T
A
= T
low
to T
high
)
f
osc
380
370
400
400
420
430
kHz
Frequency Change with Voltage (V
CC
= 10 V to 30 V)
f
osc
/ V
0.2
1.0
%
Frequency Change with Temperature (T
A
= T
low
to T
high
)
f
osc
/ T
2.0
%
Sawtooth Peak Voltage
V
P
2.6
2.8
3.0
V
Sawtooth Valley Voltage
V
V
0.7
1.0
1.25
V
Clock Output Voltage
High State
Low State
V
OH
V
OL
3.9
4.5
2.3
2.9
V
1. Maximum package power dissipation limits must be observed.
2. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
T
low
= 0
°
C for MC34025
T
high
= +70
°
C for MC34025
T
low
= 40
°
C for MC33025
T
high
= +105
°
C for MC33025
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