參數(shù)資料
型號(hào)： MC33067DWR2
廠商： ON SEMICONDUCTOR
元件分類： 穩(wěn)壓器
英文描述： High Performance Resonant Mode Controllers
中文描述： 1.5 A SWITCHING CONTROLLER, 2200 kHz SWITCHING FREQ-MAX, PDSO16
封裝： PLASTIC, SOIC-16
文件頁(yè)數(shù)： 4/16頁(yè)
文件大?。?/td> 544K
代理商： MC33067DWR2
MC34067, MC33067
http://onsemi.com
4
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 12 V [Note 6], R
OSC
= 18.2 k, R
VFO
= 2940 , C
OSC
= 300 pF,
R
T
= 2370 , C
T
= 300 pF, C
L
= 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 7), unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
OSCILLATOR
Frequency (Error Amp Output Low)
Total Variation (V
CC
= 10 V to 18 V, T
A
= T
Low
to T
High
)
f
OSC(low)
490
525
550
kHz
Frequency (Error Amp Output High)
Total Variation (V
CC
= 10 V to 18 V, T
A
= T
Low
to T
High
)
f
OSC(high)
1850
2050
2200
kHz
Oscillator Control Input Voltage, Pin 3
V
in
2.5
V
ONESHOT
Drive Output OffTime
T
A
= 25
°
C
Total Variation (V
CC
= 10 V to 18 V, T
A
= T
Low
to T
High
)
t
Blank
235
225
250
270
280
ns
DRIVE OUTPUTS
Output Voltage
Low State (I
Sink
= 20 mA)
Low State
(I
Sink
= 200 mA)
High State (I
Source
= 20 mA)
High State
(I
Source
= 200 mA)
V
OL
V
OH
9.5
9.0
0.8
1.5
10.3
9.7
1.2
2.0
V
Output Voltage with UVLO Activated (V
CC
= 6.0 V, I
Sink
= 1.0 mA)
V
OL(UVLO)
0.8
1.2
V
Output Voltage Rise Time (C
L
= 1.0 nF)
t
r
20
50
ns
Output Voltage Fall Time (C
L
= 1.0 nF)
t
f
15
50
ns
FAULT COMPARATOR
Input Threshold
V
th
0.93
1.0
1.07
V
Input Bias Current (V
Pin 10
= 0 V)
I
IB
2.0
10
A
Propagation Delay to Drive Outputs (100 mV Overdrive)
t
PLH(In/Out)
60
100
ns
SOFTSTART
Capacitor Charge Current (V
Pin 11
= 2.5 V)
I
chg
4.5
9.0
14
A
Capacitor Discharge Current (V
Pin 11
= 2.5 V)
I
dischg
3.0
8.0
mA
UNDERVOLTAGE LOCKOUT
Startup Threshold, V
CC
Increasing
Enable/UVLO Adjust Pin Open
Enable/UVLO Adjust Pin Connected to V
CC
V
th(UVLO)
14.8
8.0
16
9.0
17.2
10
V
Minimum Operating Voltage After TurnOn, V
CC
Decreasing
Enable/UVLO Adjust Pin Open
Enable/UVLO Adjust Pin Connected to V
CC
V
CC(min)
8.0
7.6
9.0
8.6
10
9.6
V
Enable/UVLO Adjust Shutdown Threshold Voltage
V
th(Enable)
6.0
7.0
V
Enable/UVLO Adjust Input Current (Pin 9 = 0 V)
I
in(Enable)
0.2
1.0
mA
TOTAL DEVICE
Power Supply Current (Enable/UVLO Adjust Pin Open)
Startup (V
CC
= 13.5 V)
Operating (f
OSC
= 500 kHz) (Note 6)
5. Maximum package power dissipation limits must be observed.
6. Adjust V
CC
above the Startup Threshold voltage before setting to 12 V.
7. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
8. T
low
=
0
°
C for MC34067
=
40
°
C for MC33067
T
high
=
+ 70
°
C for MC34067
=
+ 85
°
C for MC33067
I
CC
0.5
27
0.8
35
mA
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