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MC33065-H Datasheet

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

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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


  ON Semiconductor Electronic Components Datasheet  

MC33065-H Datasheet

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

No Preview Available !

MC34065H, L
MAXIMUM RATINGS
Rating
Power Supply Voltage
Output Current, Source or Sink (Note 1)
Output Energy (Capacitive Load per Cycle)
Current Sense, Enable, and Voltage Feedback Inputs
Sync Input
High State (Voltage)
Low State (Reverse Current)
Error Amp Output Sink Current
Power Dissipation and Thermal Characteristics
DW Suffix, Plastic Package Case 751G
Maximum Power Dissipation @ TA = 25°C
Thermal Resistance, JunctiontoAir
Symbol
VCC
IO
W
Vin
VIH
IIL
IO
Value
20
400
5.0
0.3 to +5.5
+5.5
5.0
10
Unit
V
mA
μJ
V
V
mA
mA
PD 862 mW
RθJA 145 °C/W
P Suffix, Plastic Package Case 648
Maximum Power Dissipation @ TA = 25°C
Thermal Resistance, JunctiontoAir
Operating Junction Temperature
Operating Ambient Temperature (Note 3)
MC34065
MC33065
PD
RθJA
TJ
TA
1.25
100
+150
0 to +70
40 to +85
mW
°C/W
°C
°C
Storage Temperature Range
Tstg 65 to +150
°C
ELECTRICAL CHARACTERISTICS (VCC = 15 V [Note 2], RT = 8.2 kΩ, CT = 3.3 nF, for typical values TA = 25°C, for min/max
values
TA is the operating ambient temperature range that applies to [Note 3].)
Characteristics
Symbol
Min
Typ
Max Unit
REFERENCE SECTION
Reference Output Voltage (IO = 1.0 mA, TJ = 25°C)
Line Regulation (VCC = 11 V to 20 V)
Load Regulation (IO = 1.0 mA to 10 mA, VCC = 20 V)
Total Output Variation over Line, Load, and Temperature
Output Short Circuit Current
OSCILLATOR AND PWM SECTIONS
Total Frequency Variation over Line and Temperature
VCC = 11 V to 20 V, TA = Tlow to Thigh
MC34065
MC33065
Frequency Change with Voltage (VCC = 11 V to 20 V)
Duty Cycle at each Output
Maximum
Minimum
Sync Input Current
High State (Vin = 2.4 V)
Low State (Vin = 0.8 V)
ERROR AMPLIFIERS
Voltage Feedback Input (VO = 2.5 V)
Input Bias Current (VFB = 5.0 V)
Open Loop Voltage Gain (VO = 2.0 V to 4.0 V)
Unity Gain Bandwidth (TJ = 25°C)
Power Supply Rejection Ratio (VCC = 11 V to 20 V)
Vref
4.85 5.0 5.13
V
Regline 2.0 20 mV
Regload
3.0 25 mV
Vref 4.8 5.15 V
ISC 30 100 mA
fosc
Δfosc/ΔV
DCmax
DCmin
IIH
IIL
46.5
45
46
49
49
0.2
49.5
170
80
51.5
53
1.0
52
0
250
160
kHz
%
%
μA
VFB
IIB
AVOL
BW
PSRR
2.45 2.5 2.55
V
0.1 1.0
μA
65 100
dB
0.7 1.0
MHz
60 90 dB
http://onsemi.com
2


Part Number MC33065-H
Description (MC3x065-x) High Performance Dual Channel Current Mode Controllers
Maker ON Semiconductor
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MC33065-H Datasheet PDF






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