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MC34065-L の電気的特性と機能

MC34065-LのメーカーはON Semiconductorです、この部品の機能は「(MC3x065-x) High Performance Dual Channel Current Mode Controllers」です。


製品の詳細 ( Datasheet PDF )

部品番号 MC34065-L
部品説明 (MC3x065-x) High Performance Dual Channel Current Mode Controllers
メーカ ON Semiconductor
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MC34065-L Datasheet, MC34065-L PDF,ピン配置, 機能
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MC34065−H, L
MC33065−H, L
High Performance
Dual Channel Current
Mode Controllers
The MC34065H,L series are high performance, fixed frequency,
dual current mode controllers. They are specifically designed for
offline and dctodc converter applications offering the designer a
cost effective solution with minimal external components. These
integrated circuits feature a unique oscillator for precise duty cycle
limit and frequency control, a temperature compensated reference,
two high gain error amplifiers, two current sensing comparators, Drive
Output 2 Enable pin, and two high current totem pole outputs ideally
suited for driving power MOSFETs.
Also included are protective features consisting of input and
reference undervoltage lockouts each with hysteresis, cyclebycycle
current limiting, and a latch for single pulse metering of each output.
These devices are available in dualinline and surface mount
packages.
The MC34065H has UVLO thresholds of 14 V (on) and 10 V (off),
ideally suited for offline converters. The MC34065L is tailored for
lower voltage applications having UVLO thresholds of 8.4 V (on) and
7.8 V (off).
Unique Oscillator for Precise Duty Cycle Limit and Frequency Control
Current Mode Operation to 500 kHz
Automatic Feed Forward Compensation
Separate Latching PWMs for CycleByCycle Current Limiting
Internally Trimmed Reference with Undervoltage Lockout
Drive Output 2 Enable Pin
Two High Current Totem Pole Outputs
Input Undervoltage Lockout with Hysteresis
Low Startup and Operating Current
VCC 16
Vref
1
5
1
Sync Input
3
RT
CT
2
Voltage
Feedback 1
4
Compensation 1
5
5.0V
Reference
R
R
Vref
Undervoltage
Lockout
Oscillator
+
Error
Amp 1
VCC
Undervoltage
Lockout
Latching
PWM 1
Drive Output 1
7
Current Sense
61
Drive Output
2
Enable
14
Voltage
Feedback 2 13
Compensation 2
12
+
Error
Amp 2
Latching
PWM 2
Gnd 8
Drive Gnd 9
Representative Block Diagram
Drive Output 2
10
Current Sense
11 2
http://onsemi.com
HIGH PERFORMANCE
DUAL CHANNEL CURRENT
MODE CONTROLLERS
SEMICONDUCTOR
TECHNICAL DATA
P SUFFIX
PLASTIC PACKAGE
CASE 648
16
1
DW SUFFIX
PLASTIC PACKAGE
CASE 751G
(SO16L)
16
1
PIN CONNECTIONS
Sync Input 1
CT 2
RT 3
Voltage Feedback 1 4
Compensation 1 5
Current Sense 1 6
Drive Output 1 7
16 VCC
15 Vref
14 Drive Output 2 Enable
13 Voltage Feedback
2
12 Compensation
2
11 Current Sense
2
10 Drive Output 2
Gnd 8
(Top View)
9 Drive
Gnd
ORDERING INFORMATION
Device
Operating
Temperature Range Package
MC34065DWH
SO16L
MC34065DWL
MC34065PH
TA = 0° to +70°C
Plastic DIP
MC34065PL
MC33065DWH
MC33065DWL
MC33065PH
MC33065PL
TA = 40° to +85°C
SO16L
Plastic DIP
© Semiconductor Components Industries, LLC, 2006
July, 2006 Rev. 2
1
Publication Order Number:
MC34065H/D

1 Page





MC34065-L pdf, ピン配列
ERROR AMPLIFIERS
Output Current
Source (VO = 3.0 V, VFB = 2.3 V)
Sink (VO = 1.2 V, VFB = 2.7 V)
Output Voltage Swing
High State (RL = 15 k to ground, VFB = 2.3 V)
Low State (RL = 15 k to Vref, VFB = 2.7 V)
MC34065H, L
mA
Isource
Isink
0.45
2.0
1.0
12
VOH
VOL
5.0 6.2
0.8 1.1
V
http://onsemi.com
3


3Pages


MC34065-L 電子部品, 半導体
2.55 V
2.50 V
MC34065H, L
VCC = 15 V
AV = −1.0
TA = 25°C
3.0 V
2.50 V
VCC = 15 V
AV = −1.0
TA = 25°C
2.45 V
1.0 μs/DIV
Figure 3. Error Amp SmallSignal
Transient Response
2.0 V
1.0 μs/DIV
Figure 4. Error Amp LargeSignal
Transient Response
100
80 Gain
60
VCC = 15 V
VO = 1.5 V to 2.5 V
RL = 100 k
TA = 25°C
0
30
60
40 90
20 Phase 120
0 150
−20 180
10 100 1.0 k 10 k 100 k 1.0 M 10 M
f, FREQUENCY (Hz)
Figure 5. Error Amp Open Loop Gain and
Phase versus Frequency
1.2
VCC = 15 V
1.0
0.8 TA = 125°C
0.6 TA = 25°C
0.4 TA = −55°C
0.2
0
0 1.0 2.0 3.0 4.0 5.0 6.0 7.0
VO, ERROR AMP OUTPUT VOLTAGE (V)
Figure 6. Current Sense Input Threshold
versus Error Amp Output Voltage
0
−4.0
−8.0
−12
−16
−20
−24
0
VCC = 15 V
TA = 125°C
TA = 25°C
TA = −55°C
20 40 60 80 100
Iref, REFERENCE SOURCE CURRENT (mA)
Figure 7. Reference Voltage Change
versus Source Current
120
120
VCC = 15 V
RL 0.1 Ω
100
80
60
−55
−25 0 25 50 75 100
TA, AMBIENT TEMPERATURE (°C)
Figure 8. Reference Short Circuit Current
versus Temperature
125
http://onsemi.com
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6 Page



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共有リンク

Link :


部品番号部品説明メーカ
MC34065-H

(MC3x065-x) High Performance Dual Channel Current Mode Controllers

ON Semiconductor
ON Semiconductor
MC34065-H

High Performance Dual Channel Current Mode Controllers

Motorola Semiconductors
Motorola Semiconductors
MC34065-L

(MC3x065-x) High Performance Dual Channel Current Mode Controllers

ON Semiconductor
ON Semiconductor
MC34065-L

High Performance Dual Channel Current Mode Controllers

Motorola Semiconductors
Motorola Semiconductors


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