MC33065P Motorola, MC33065P Datasheet

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MC33065P

Manufacturer Part Number
MC33065P
Description
DIP16
Manufacturer
Motorola
Datasheet

Specifications of MC33065P

Date_code
01+

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High Performance
Dual Channel Current
Mode Controller
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.
undervoltage lockouts each with hysteresis, cycle–by–cycle current limiting,
and a latch for single pulse metering of each output.
mount packages.
Compensation 1
Compensation 2
MOTOROLA ANALOG IC DEVICE DATA
The MC34065 is a high performance, fixed frequency, dual current mode
Also included are protective features consisting of input and reference
The MC34065 and MC33065 are available in dual–in–line and surface
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
Drive Output 2
Feedback 1
Feedback 2
Sync Input
Voltage
Voltage
Enable
V ref
R T
C T
15
14
13
12
1
3
2
4
5
This device contains 208 active transistors.
Amp 2
Amp 1
+
+
Error
Error
Representative Block Diagram
R
R
Oscillator
Gnd
Undervoltage
Lockout
V ref
8
Reference
5.0 V
Drive Gnd 9
Latching
Latching
PWM 1
PWM 2
Undervoltage
Lockout
V CC
V CC
16
10
11
7
6
Drive
Output 1
Current
Sense 1
Drive
Output 2
Current
Sense 2
MC34065DW
MC34065P
MC33065DW
MC33065P
Voltage Feedback 1
Motorola, Inc. 1996
Compensation 1
Current Sense 1
PLASTIC PACKAGE
PLASTIC PACKAGE
DUAL CHANNEL CURRENT
Drive Output 1
Device
DW SUFFIX
CASE 751G
HIGH PERFORMANCE
Sync Input
MODE CONTROLLER
CASE 648
P SUFFIX
(SO–16L)
ORDERING INFORMATION
MC34065
MC33065
Gnd
C T
R T
SEMICONDUCTOR
TECHNICAL DATA
Order this document by MC34065/D
PIN CONNECTIONS
Temperature Range
T A = –40 to +85 C
1
2
3
4
5
6
7
8
T A = 0 to +70 C
(Top View)
Operating
16
16
1
16
15
14
13
12
11
10
9
V CC
V ref
Drive Output 2
Enable
Voltage Feedback 2
Compensation 2
Current Sense 2
Drive Output 2
Drive Gnd
1
Plastic DIP
Plastic DIP
Package
SO–16L
SO–16L
Rev 1
1

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