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MC33060AのメーカーはON Semiconductorです、この部品の機能は「Voltage Mode Single Ended Controllers」です。 |
部品番号 | MC33060A |
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部品説明 | Voltage Mode Single Ended Controllers | ||
メーカ | ON Semiconductor | ||
ロゴ | |||
このページの下部にプレビューとMC33060Aダウンロード(pdfファイル)リンクがあります。 Total 16 pages
MC34060A, MC33060A
Fixed Frequency, PWM,
Voltage Mode Single Ended
Controllers
The MC34060A is a low cost fixed frequency, pulse width
modulation control circuit designed primarily for single−ended
SWITCHMODEt power supply control.
The MC34060A is specified over the commercial operating
temperature range of 0° to +70°C, and the MC33060A is specified
over an automotive temperature range of −40° to +85°C.
Features
• Complete Pulse Width Modulation Control Circuitry
• On−Chip Oscillator with Master or Slave Operation
• On−Chip Error Amplifiers
• On−Chip 5.0 V Reference, 1.5% Accuracy
• Adjustable Dead−Time Control
• Uncommitted Output Transistor Rated to 200 mA Source or Sink
• Undervoltage Lockout
• These are Pb−Free and Halide−Free Devices
PIN CONNECTIONS
Noninv
Input 1
Inv
Input
2
Compen/PWM
Comp Input
3
Dead-Time
Control
4
+
Error
Amp
-
1
0.1V
+
Error
2 Amp
-
VCC
5.0 V
ref
Noninv
14 Input
13
Inv
Input
12 Vref
11 N.C.
CT 5
RT 6
Ground 7
Oscillator
10 VCC
9C
Q1
8E
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14
1
MARKING
DIAGRAMS
14
SOIC−14
D SUFFIX
CASE 751A
MC3x060ADG
AWLYWW
1
14
1
14
PDIP−14
P SUFFIX
CASE 646
1
MC3x060AP
AWLYYWWG
x
A
WL
Y, YY
WW
G
= 3 or 4
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 14 of this data sheet.
(Top View)
© Semiconductor Components Industries, LLC, 2011
March, 2011 − Rev. 7
1
Publication Order Number:
MC34060A/D
1 Page MC34060A, MC33060A
ELECTRICAL CHARACTERISTICS (VCC = 15 V, CT = 0.01 mF, RT = 12 kW, unless otherwise noted. For typical values TA = 25°C,
for min/max values TA is the operating ambient temperature range that applies, unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Max Unit
REFERENCE SECTION
Reference Voltage (IO = 1.0 mA, TA 25°C)
TA = Tlow to Thigh − MC34060A
TA = Tlow to Thigh − MC33060A
Line Regulation (VCC = 7.0 V to 40 V, IO = 10 mA)
Load Regulation (IO = 1.0 mA to 10 mA)
Short Circuit Output Current (Vref = 0 V)
OUTPUT SECTION
Collector Off−State Current (VCC = 40 V, VCE = 40 V)
Emitter Off−State Current (VCC = 40 V, VCE = 40 V, VE = 0 V)
Collector−Emitter Saturation Voltage (Note 4)
Common−Emitter
(VE = 0 V, IC = 200 mA)
Emitter−Follower
(VC = 15 V, IE = −200 mA)
Output Voltage Rise Time (TA = 25°C)
Common−Emitter (See Figure 12)
Emitter−Follower (See Figure 13)
Vref
4.925
5.0
5.075
V
4.9 − 5.1
4.85 −
5.1
Regline − 2.0 25 mV
Regload
−
2.0 15 mV
ISC 15 35 75 mA
IC(off)
− 2.0 100 mA
IE(off)
−
−
−100
mA
Vsat(C) − 1.1 1.5 V
Vsat(E) − 1.5 2.5
tr ns
− 100 200
− 100 200
Output Voltage Fall Time (TA = 25°C)
Common−Emitter (See Figure 12)
Emitter−Follower (See Figure 13)
tr ns
− 40 100
− 40 100
ERROR AMPLIFIER SECTION
Input Offset Voltage (VO[Pin 3] = 2.5 V)
VIO − 2.0 10 mV
Input Offset Current (VC[Pin 3] = 2.5 V)
IIO − 5.0 250 nA
Input Bias Current (VO[Pin 3] = 2.5 V)
IIB − −0.1 −2.0 mA
Input Common Mode Voltage Range
(VCC = 40 V)
VICR
0 to
VCC −2.0
−
−V
Inverting Input Voltage Range
VIR(INV)
−0.3 to
VCC−2.0
−
−V
Open−Loop Voltage Gain
(DVO = 3.0 V, VO = 0.5 V to 3.5 V, RL = 2.0 kW)
AVOL
70 95
− dB
Unity−Gain Crossover Frequency
(VO = 0.5 V to 3.5 V, RL = 2.0 kW)
fc − 600 − kHz
Phase Margin at Unity−Gain
(VO = 0.5 V to 3.5 V, RL = 2.0 kW)
φm − 65 − deg.
Common Mode Rejection Ratio
(VCC = 40 V, Vin = 0 V to 38 V))
CMRR
65
90
− dB
Power Supply Rejection Ratio
(DVCC = 33 V, VO = 2.5 V, RL = 2.0 kW)
PSRR
− 100 − dB
Output Sink Current (VO[Pin 3] = 0.7 V)
IO−
0.3 0.7
− mA
Output Source Current (VO[Pin 3] = 3.5 V)
IO+
−2.0 −4.0
−
4. Low duty cycle techniques are used during test to maintain junction temperature as close to ambient temperatures as possible.
Tlow = −40°C for MC33060A
= 0°C for MC34060A
Thigh = +85°C for MC33060A
= +70°C for MC34060A
mA
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3
3Pages MC34060A, MC33060A
APPLICATIONS INFORMATION
The control signals are external inputs that can be fed into
the dead−time control, the error amplifier inputs, or the
feed−back input. The dead−time control comparator has an
effective 120 mV input offset which limits the minimum
output dead time to approximately the first 4% of the
sawtooth−cycle time. This would result in a maximum duty
cycle of 96%. Additional dead time may be imposed on the
output by setting the dead time−control input to a fixed
voltage, ranging between 0 V to 3.3 V.
The pulse width modulator comparator provides a means
for the error amplifiers to adjust the output pulse width from
the maximum percent on−time, established by the dead time
control input, down to zero, as the voltage at the feedback
pin varies from 0.5 V to 3.5 V. Both error amplifiers have a
common mode input range from −0.3 V to (VCC −2.0 V), and
may be used to sense power supply output voltage and
current. The error−amplifier outputs are active high and are
ORed together at the noninverting input of the pulse−width
modulator comparator. With this configuration, the
amplifier that demands minimum output on time, dominates
control of the loop.
The MC34060A has an internal 5.0 V reference capable
of sourcing up to 10 mA of load currents for external bias
circuits. The reference has an internal accuracy of ±5% with
a typical thermal drift of less than 50 mV over an operating
temperature range of 0° to +70°C.
500 k
100 k
0.001 mF
VCC = 15 V
10 k CT = 0.01 mF
1.0 mF
1.0 k
500
1.0 k
2.0 k 5.0 k 10 k 20 k 50 k 100 k 200 k 500 k 1.0 M
RT, TIMING RESISTANCE (W)
Figure 3. Oscillator Frequency
versus Timing Resistance
120
110 VCC = 15 V
100
DVO = 3.0
V
90
RL = 2.0 kW
0
80
AVOL
-20
70 -40
60 q -60
50 -80
40
30
20
10
0
1.0
10
-100
-120
-140
-160
-180
100 1.0 k 10 k 100 k 1.0 M
f, FREQUENCY (Hz)
Figure 4. Open Loop Voltage Gain and Phase
versus Frequency
20
18
16
14
12 CT = 0.001 mF
10
8.0
6.0 0.01 mF
4.0
2.0
0
500 1.0 k 10 k 100 k
fosc, OSCILLATOR FREQUENCY (Hz)
Figure 5. Percent Deadtime versus
Oscillator Frequency
500 k
100
80 VCC = 15 V
CT = 0.001
RT = 47 k
60
40
20
0
0
1.0 2.0
3.0
DEAD-TIME CONTROL VOLTAGE (V)
Figure 6. Percent Duty Cycle versus
Dead−Time Control Voltage
3.5
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6
6 Page | |||
ページ | 合計 : 16 ページ | ||
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部品番号 | 部品説明 | メーカ |
MC33060A | (MC33060A / MC34060A) PRECISION SWITCHMODE PULSE WIDTH MODULATOR CONTROL CIRCUIT | Motorola Semiconductors |
MC33060A | Voltage Mode Single Ended Controllers | ON Semiconductor |