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MC44608P75. 44608P75 Datasheet

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MC44608P75. 44608P75 Datasheet
















44608P75 MC44608P75. Datasheet pdf. Equivalent













Part

44608P75

Description

MC44608P75



Feature


MC44608 Few External Components Reliable and Flexible SMPS Controller The MC446 08 is a high performance voltage mode c ontroller designed for off--line conver ters. This high voltage circuit that in tegrates the startup current source and the oscillator capacitor, requires few external components while offering a h igh flexibility and reliability. The de vice also features.
Manufacture

ON Semiconductor

Datasheet
Download 44608P75 Datasheet


ON Semiconductor 44608P75

44608P75; a very high efficiency standby manageme nt consisting of an effective Pulsed Mo de operation. This technique enables th e reduction of the standby power consum ption to approximately 1.0 W while deli vering 300 mW in a 150 W SMPS. General Features Integrated Startup Current So urce Lossless Off--Line Startup Direc t Off--Line Operation Fast Startup Fl exibility Duty Cy.


ON Semiconductor 44608P75

cle Control Undervoltage Lockout with H ysteresis On Chip Oscillator Switching Frequency 40 or 75 Secondary Control with Few External Components These are Pb--Free Devices* Protections Maximum Duty Cycle Limitation Cycle by Cycle Current Limitation Demagnetization (Ze ro Current Detection) Protection “Ov er VCC Protection” Against Open Loop Programmable Low Iner.


ON Semiconductor 44608P75

tia Over Voltage Protection Against Open Loop Internal Thermal Protection SMPS Controller Pulsed Mode Techniques for a Very High Efficiency Low Power Mode Lossless Startup Low dV/dT for Low EM I Radiations *For additional informatio n on our Pb--Free strategy and solderin g details, please download the ON Semic onductor Soldering and Mounting Techniq ues Reference Manu.





Part

44608P75

Description

MC44608P75



Feature


MC44608 Few External Components Reliable and Flexible SMPS Controller The MC446 08 is a high performance voltage mode c ontroller designed for off--line conver ters. This high voltage circuit that in tegrates the startup current source and the oscillator capacitor, requires few external components while offering a h igh flexibility and reliability. The de vice also features.
Manufacture

ON Semiconductor

Datasheet
Download 44608P75 Datasheet




 44608P75
MC44608
Few External Components
Reliable and Flexible
SMPS Controller
The MC44608 is a high performance voltage mode controller
designed for off--line converters. This high voltage circuit that
integrates the startup current source and the oscillator capacitor,
requires few external components while offering a high flexibility and
reliability.
The device also features a very high efficiency standby management
consisting of an effective Pulsed Mode operation. This technique
enables the reduction of the standby power consumption to
approximately 1.0 W while delivering 300 mW in a 150 W SMPS.
General Features
Integrated Startup Current Source
Lossless Off--Line Startup
Direct Off--Line Operation
Fast Startup
Flexibility
Duty Cycle Control
Undervoltage Lockout with Hysteresis
On Chip Oscillator Switching Frequency 40 or 75
Secondary Control with Few External Components
These are Pb--Free Devices*
Protections
Maximum Duty Cycle Limitation
Cycle by Cycle Current Limitation
Demagnetization (Zero Current Detection) Protection
“Over VCC Protection” Against Open Loop
Programmable Low Inertia Over Voltage Protection
Against Open Loop
Internal Thermal Protection
SMPS Controller
Pulsed Mode Techniques for a Very High Efficiency
Low Power Mode
Lossless Startup
Low dV/dT for Low EMI Radiations
*For additional information on our Pb--Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
http://onsemi.com
8
1
PDIP--8
P SUFFIX
CASE 626
MARKING DIAGRAM
8
MC44608Pxx
AWL
YYWWG
1
MC44608Pxx
A
WL
YY
WW
G
= Device Code
xx = 40 or 75
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb--Free Package
PIN CONNECTIONS
Demag 1
Isense 2
Control Input 3
GND 4
8 Vi
7
6 VCC
5 Driver
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
Semiconductor Components Industries, LLC, 2010
December, 2010 -- Rev. 10
1
Publication Order Number:
MC44608/D




 44608P75
MC44608
Demag
Vi
DMG +
-- 50 mV
/20 mV
1
>24 mA >120 mA
UVLO2
8
9 mA
Startup
Source
1
S1
2
Isense
Latched off Phase
Demag
Logic
Output
Latched off
Phase
Startup
200
0
mPAhase SwPihtcahsieng
Startup
Phase
Startup Phase
V CC
Switching Phase Management
OVP
2 mS
UVLO1
UVLO2
& OUT Disable
DMG
&
Standby
Standby
Management
OSC
Enable
OSC
OC NOC
Leading Edge
Blanking
Output
&
Clock
+
PWM
--
VPWM
&
&
S
PWM
Thermal
Shutdown
Latch
RQ
Buffer
+CS
--
1V
4 kHz Filter
Latched off Phase
Standby
Regulation
&
S2
S3
Block
Switching Phase
Figure 1. Representative Block Diagram
6
VCC
5
Driver
4
GND
3
Control
Input
ORDERING INFORMATION
Device
MC44608P40G
MC44608P75G
Switching Frequency
40 kHz
75 kHz
Package
PDIP--8
(Pb--Free)
PDIP--8
(Pb--Free)
Shipping
50 Units / Rail
50 Units / Rail
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Total Power Supply Current
ICC 30 mA
Output Supply Voltage with Respect to Ground
VCC
16 V
All Inputs except Vi
Vinputs
--1.0 to +16
V
Line Voltage Absolute Rating
Vi 500 V
Recommended Line Voltage Operating Condition
Vi 400 V
Power Dissipation and Thermal Characteristics
Maximum Power Dissipation at TA = 85C
Thermal Resistance, Junction--to--Air
Operating Junction Temperature
PD
RθJA
TJ
600 mW
100 C/W
150 C
Operating Ambient Temperature
TA
--25 to +85
C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
http://onsemi.com
2




 44608P75
MC44608
ELECTRICAL CHARACTERISTICS
Characteristic
Symbol
OUTPUT SECTION
Output Resistor
Sink Resistance
Source Resistance
Output Voltage Rise Time (from 3.0 V up to 9.0 V) (Note 1)
Output Voltage Falling Edge Slew--Rate (from 9.0 V down to 3.0 V) (Note 1)
CONTROL INPUT SECTION
ROL
ROH
tr
tf
Duty Cycle @ Ipin3 = 2.5 mA
Duty Cycle @ Ipin3 = 1.0 mA
Control Input Clamp Voltage (Switching Phase) @ Ipin3 = --1.0 mA
Latched Phase Control Input Voltage (Standby) @ Ipin3 = +500 mA
Latched Phase Control Input Voltage (Standby) @ Ipin3 = +1.0 mA
current sense section
d2mA
d1mA
VLP--stby
VLP--stby
Maximum Current Sense Input Threshold
Input Bias Current
Standby Current Sense Input Current
Startup Phase Current Sense Input Current
Propagation Delay (Current Sense Input to Output @ VTH T MOS = 3.0 V)
Leading Edge Blanking Duration
MC44608P40
Leading Edge Blanking Duration
MC44608P75
Leading Edge Blanking + Propagation Delay
MC44608P40
Leading Edge Blanking + Propagation Delay
MC44608P75
oscillator section
VCS--th
IB--cs
ICS--stby
ICS--stup
TPLH(In/Out)
TLEB
TLEB
TDLY
TDLY
Normal Operation Frequency MC44608P40
Normal Operation Frequency MC44608P75
Maximum Duty Cycle @ f = fosc
OVERvoltage section
fosc
fosc
dmax
Quick OVP Input Filtering (Rdemag = 100 kΩ)
Tfilt
Propagation Delay (Idemag > Iovp to output low)
TPHL(In/Out)
Quick OVP Current Threshold
IOVP
Protection Threshold Level on VCC
VCC--OVP
Minimum Gap Between VCC--OVP and Vstup--th
VCC--OVP -- Vstup
1. This parameter is measured using 1.0 nF connected between the output and the ground.
Min
5.0
--
--
--
--
36
4.75
3.4
2.4
0.95
--1.8
180
180
--
--
--
500
370
36
68
78
--
--
105
14.8
1.0
Typ
8.5
15
50
50
--
43
5.0
3.9
3.0
1.0
--
200
200
220
480
250
680
470
40
75
82
250
2.0
120
15.3
--
Max Unit
Ω
15
--
-- ns
-- ns
2.0 %
48 %
5.25 V
4.3 V
3.7 V
1.05 V
1.8 mA
220 mA
220 mA
-- ns
-- ns
-- ns
900 ns
570 ns
44 kHz
82 kHz
86 %
-- ns
-- ms
140 mA
15.8 V
-- V
http://onsemi.com
3




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