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MC33025DWR2 Folha de dados(PDF) 3 Page - ON Semiconductor

Nome de Peças MC33025DWR2
Descrição Electrónicos  High Speed Double?묮nded PWM Controller
Download  20 Pages
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Fabricante Electrônico  ONSEMI [ON Semiconductor]
Página de início  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

MC33025DWR2 Folha de dados(HTML) 3 Page - ON Semiconductor

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MC34025, MC33025
http://onsemi.com
3
ELECTRICAL CHARACTERISTICS (VCC = 15 V, RT = 3.65 kW, CT = 1.0 nF, for typical values TA = + 25°C, for min/max values
TA is the operating ambient temperature range that applies [Note 4], unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
ERROR AMPLIFIER SECTION
Input Offset Voltage
VIO
15
mV
Input Bias Current
IIB
0.6
3.0
mA
Input Offset Current
IIO
0.1
1.0
mA
Open−Loop Voltage Gain (VO = 1.0 V to 4.0 V)
AVOL
60
95
dB
Gain Bandwidth Product (TJ = + 25°C)
GBW
4.0
8.3
MHz
Common Mode Rejection Ratio (VCM = 1.5 V to 5.5 V)
CMRR
75
95
dB
Power Supply Rejection Ratio (VCC = 10 V to 30 V)
PSRR
85
110
dB
Output Current,
Source (VO = 4.0 V)
Sink (VO = 1.0 V)
ISource
ISink
0.5
1.0
3.0
3.6
mA
Output Voltage Swing,
High State (IO = − 0.5 mA)
Low State (IO = 1.0 mA)
VOH
VOL
4.5
0
4.75
0.4
5.0
1.0
V
Slew Rate
SR
6.0
12
V/
ms
PWM COMPARATOR SECTION
Ramp Input Bias Current
IIB
−0.5
−5.0
mA
Duty Cycle of Each Output,
Maximum
Minimum
DC(max)
DC(min)
40
45
0
%
Zero Duty Cycle Threshold Voltage Pin 3(4) (Pin 7(9) = 0 V)
Vth
1.1
1.25
1.4
V
Propagation Delay (Ramp Input to Output, TJ = + 25°C)
tPLH(in/out)
60
100
ns
SOFT−START SECTION
Charge Current (VSoft−Start = 0.5 V)
Ichg
3.0
9.0
20
mA
Discharge Current (VSoft−Start = 1.5 V)
Idischg
1.0
4.0
mA
CURRENT SENSE SECTION
Input Bias Current (Pin 9(12) = 0 V to 4.0 V)
IIB
15
mA
Current Limit Comparator Threshold
Shutdown Comparator Threshold
Vth
Vth
0.9
1.25
1.0
1.40
1.10
1.55
V
Propagation Delay (Current Limit/Shutdown to Output, TJ = + 25°C)
tPLH(in/out)
50
80
ns
OUTPUT SECTION
Output Voltage
Low State
(ISink = 20 mA)
(ISink = 200 mA)
High State
(ISource = 20 mA)
(ISource = 200 mA)
VOL
VOH
13
12
0.25
1.2
13.5
13
0.4
2.2
V
Output Voltage with UVLO Activated (VCC = 6.0 V, ISink = 0.5 mA)
VOL(UVLO)
0.25
1.0
V
Output Leakage Current (VC = 20 V)
IL
100
500
mA
Output Voltage Rise Time (CL = 1.0 nF, TJ = + 25°C)
tr
30
60
ns
Output Voltage Fall Time (CL = 1.0 nF, TJ = + 25°C)
tf
30
60
ns
UNDERVOLTAGE LOCKOUT SECTION
Startup Threshold (VCC Increasing)
Vth(on)
8.8
9.2
9.6
V
UVLO Hysteresis Voltage (VCC Decreasing After Turn−On)
VH
0.4
0.8
1.2
V
TOTAL DEVICE
Power Supply Current
Startup (VCC = 8.0 V)
Operating
ICC
0.5
25
1.2
35
mA
3. Maximum package power dissipation limits must be observed.
4. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
Tlow = 0°C for MC34025
Thigh = +70°C for MC34025
Tlow = − 40°C for MC33025
Thigh = +105°C for MC33025


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