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參數(shù)資料
| 型號： | MC33163DWG |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 500kHz and 1MHz High Efficiency 1.5A Switching Regulators; Package: SO; No of Pins: 8; Temperature Range: -40?°C to 85?°C |
| 中文描述： | 3.4 A SWITCHING REGULATOR, 55 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | LEAD FREE, SOIC-16 |
| 文件頁數(shù)： | 3/16頁 |
| 文件大?。?/td> | 255K |
| 代理商： | MC33163DWG |
MC34163, MC33163
http://onsemi.com
3
ELECTRICAL CHARACTERISTICS
(V
CC
= 15 V, Pin 16 = V
CC
, C
T
= 620 pF, for typical values T
A
= 25
°
C, for min/max values T
A
is
the operating ambient temperature range that applies (Note 5), unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
OSCILLATOR
Frequency
T
A
= 25
°
C
Total Variation over V
CC
= 2.5 V to 40 V, and Temperature
f
OSC
46
45
50
54
55
kHz
Charge Current
I
chg
225
A
Discharge Current
I
dischg
25
A
Charge to Discharge Current Ratio
I
chg
/I
dischg
8.0
9.0
10
Sawtooth Peak Voltage
V
OSC(P)
1.25
V
Sawtooth Valley Voltage
V
OSC(V)
0.55
V
FEEDBACK COMPARATOR 1
Threshold Voltage
T
A
= 25
°
C
Line Regulation (V
CC
= 2.5 V to 40 V, T
A
= 25
°
C)
Total Variation over Line, and Temperature
V
th(FB1)
4.9
4.85
5.05
0.008
5.2
0.03
5.25
V
%/V
V
Input Bias Current (V
FB1
= 5.05 V)
I
IB(FB1)
100
200
A
FEEDBACK COMPARATOR 2
Threshold Voltage
T
A
= 25
°
C
Line Regulation (V
CC
= 2.5 V to 40 V, T
A
= 25
°
C)
Total Variation over Line, and Temperature
V
th(FB2)
1.225
1.213
1.25
0.008
1.275
0.03
1.287
V
%/V
V
Input Bias Current (V
FB2
= 1.25 V)
I
IB(FB2)
0.4
0
0.4
A
CURRENT LIMIT COMPARATOR
Threshold Voltage
T
A
= 25
°
C
Total Variation over V
CC
= 2.5 V to 40 V, and Temperature
V
th(Ipk Sense)
230
250
270
mV
Input Bias Current (V
Ipk (Sense)
= 15 V)
I
IB(sense)
1.0
20
A
DRIVER AND OUTPUT SWITCH
(Note 4)
Sink Saturation Voltage (I
SW
= 2.5 A, Pins 14, 15 grounded)
NonDarlington Connection (R
Pin 9
= 110 to V
CC
, I
SW
/I
DRV
≈
20)
Darlington Connection (Pins 9, 10, 11 connected)
V
CE(sat)
0.6
1.0
1.0
1.4
V
Collector OffState Leakage Current (V
CE
= 40 V)
I
C(off)
0.02
100
A
Bootstrap Input Current Source (V
BS
= V
CC
+ 5.0 V)
I
source(DRV)
0.5
2.0
4.0
mA
Bootstrap Input Zener Clamp Voltage (I
Z
= 25 mA)
V
Z
V
CC
+ 6.0
V
CC
+ 7.0
V
CC
+ 9.0
V
LOW VOLTAGE INDICATOR
Input Threshold (V
FB2
Increasing)
V
th
1.07
1.125
1.18
V
Input Hysteresis (V
FB2
Decreasing)
V
H
15
mV
Output Sink Saturation Voltage (I
sink
= 2.0 mA)
V
OL(LVI)
0.15
0.4
V
Output OffState Leakage Current (V
OH
= 15 V)
I
OH
0.01
5.0
A
TOTAL DEVICE
Standby Supply Current (V
CC
= 2.5 V to 40 V, Pin 8 = V
CC
,
Pins 6, 14, 15 = GND, remaining pins open)
I
CC
6.0
10
mA
4. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
5. T
low
= 0
°
C for MC34163
T
high
= + 70
°
C for MC34163
= 40
°
C for MC33163
= + 85
°
C for MC33163
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