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參數(shù)資料
| 型號： | MC33065P-L |
| 廠商： | MOTOROLA INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | HIGH PERFORMANCE DUAL CHANNEL CURRENT MODE CONTROLLERS |
| 中文描述： | 0.4 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數(shù)： | 1/15頁 |
| 文件大小： | 494K |
| 代理商： | MC33065P-L |
ORDERING INFORMATION
TA = –40
°
to +85
°
C
Device
Operating
Temperature Range
Package
TA = 0
°
to +70
°
C
MC34065DW
MC34065P
MC33065DW
MC33065P
SO–16L
Plastic DIP
SO–16L
Plastic DIP
PIN CONNECTIONS
Sync Input
CT
RT
Voltage Feedback 1
Compensation 1
Current Sense 1
Drive Output 1
Gnd
VCC
Vref
Drive Output 2
Enable
Voltage Feedback 2
Compensation 2
Current Sense 2
Drive Output 2
Drive Gnd
1
(Top View)
2
3
4
5
6
7
8
9
11
10
12
13
14
15
16
SEMICONDUCTOR
TECHNICAL DATA
HIGH PERFORMANCE
DUAL CHANNEL CURRENT
MODE CONTROLLER
Order this document by MC34065/D
P SUFFIX
PLASTIC PACKAGE
CASE 648
DW SUFFIX
PLASTIC PACKAGE
CASE 751G
(SO–16L)
16
1
16
1
MOTOROLA ANALOG IC DEVICE DATA
The MC34065 is a high performance, fixed frequency, dual current mode
controllers. It is specifically designed for off–line and dc–to–dc converter
applications offering the designer a cost effective solution with minimal
external components. This integrated circuit 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, cycle–by–cycle current limiting,
and a latch for single pulse metering of each output.
The MC34065 and MC33065 are available in dual–in–line and surface
mount packages.
Unique Oscillator for Precise Duty Cycle Limit and Frequency Control
Current Mode Operation to 500 kHz
Automatic Feed Forward Compensation
Separate Latching PWMs for Cycle–By–Cycle 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
Representative Block Diagram
+
–
Error
Amp 2
+
–
Error
Amp 1
Vref
Sync Input
RT
CT
Voltage
Feedback 1
Compensation 1
Drive Output 2
Enable
Voltage
Feedback 2
Compensation 2
15
1
5
13
12
14
4
2
3
7
6
10
11
Drive
Output 1
Current
Sense 1
Drive
Output 2
Current
Sense 2
VCC
16
Gnd
8
Drive Gnd
9
Oscillator
Vref
Undervoltage
Lockout
5.0 V
Reference
UndVCC
Lockout
Latching
PWM 1
R
R
This device contains 208 active transistors.
Latching
PWM 2
Motorola, Inc. 1996
Rev 1
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