October 2001
FS6M07652RTC
for LCD Monitor
SMPS Power Switch
Product Brief
Various Protection Features — includes OLP,
OVP, OCP & TSD
Burst Mode Operation — Lower Consumption
in Standby Mode
Features
■Pulse-by-Pulse Current Limiting
■Burst Mode Operation for Stand-by Mode
■Improved SenseFET (QFET)
■Fixed Operating Frequency of 70kHz
■Over Current Latch Protection (OCP)
■Over Load Protection (OLP)
■Over Voltage Protection (OVP)
■Internal Thermal Shutdown Protection (TSD)
■Under Voltage Lockout with Hysteresis
■User-Defined Soft Start
■Auto-Restart Mode
Applications
■LCD Monitor
■AC/DC Adapters
Rev. 1.0.1
General Description
The FS6M07652RTC is a highly integrated off-line power switch
(FPS) specifically targeted for the LCD monitor fly-back power
supply applications. This offers Burst Mode Operation for Stand-
by mode to minimize power consumption by reducing switching
loss. The FS6M07652RTC minimizes external components,
simplifies design and lower cost by integrating a current sensing
MOSFET and a PWM controller with a fixed operating frequency
of 70kHz.
The FS6M07652RTC provides internal protection including over
voltage protection, over load protection, thermal shutdown
protection and over current protection. The internal current sensing
high voltage MOSFET offers a 650V min. breakdown rating.
The FS6M07652RTC is available in the space-saving TO-220-5L
package.
Ordering Information
Part Number Pin max (W) BVdss (V) Ipeak typ (A) Rds(on) typ (Ω) Package
FS6M07652RTC-TU 45 650 2.0 1.6 (Id = 3.5A) TO-220F-5L
FS6M07652RTC-YDT
-TU: Non Forming Type -YDT: Forming Type
FS6M07652RTC
LIFE SUPPORT POLICY
FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN
APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems which, (a) are intended for
surgical implant into the body, or (b) support or sustain life, and whose failure to
perform, when properly used in accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a significant injury to the user.
2. A critical component is any component of a life support device or system whose
failure to perform can be reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
Typical Circuit
130mA
(at Burst mode)
IC101
FS6M07652R
4
3
2
1
5
Vfb
Vcc
GND
Drain
S/S
R201
1K
C105
0.22nF/1KV
12V
R102
390K/1W
R210
38
R103
47K/2W
3.3V
C104
22nF/630V
R204
0.9K
IC301
HC11A817A
D202
TVR10G
2A
L202
D201 UGF8DT
F101
FUSE
-
+
2KBP06M3N257
DB101
1
2
3
4
+C202
470µF/25V
+C201
470µF/25V
+C204
1000µF/10V
D201
UF4007
+
C206
100µ/10V
R206
2.7k
5D-9
Q201
R208
4.7K
C102 100nF/275VAC
250V 2A
R209
0.22k
R104
22
C301 4.7nF
L201
Circuit for testing
the Burst mode
operation
R202
1.2k
R101 560k/ 0.5W
D203
TVR10G
+C203
1000µF/10V
SW201
MicomSig'
KA7805
1 32
2A
C101 100n/275VAC
C107
47n/50V
R205
2.7K
+
C108
33µF/50V
Line Filter: LF101:13mH
R203
1.2k
+
C106
1µF/50V
C205
100nF
T1:EFD3030
8
10
12
3
2
2
1
5
67
5V
+ C103
82µF/400V
RT101
D202
MBRF1045
IC201
KA431
R207
4.7K
GND
Vin Vout
Electrical Characteristics
Product Parameter Fairchild FS6M07652RTC Competitor
FET SenseFET (QFET) MOSFET (CoolMOS)
Isense Internal External
Pkg Type TO-220F-5L P-DIP-8-6
Pin 5 pin: Drain/GND/Vcc/Vfb/Vss 6 pin: Drain/GND/Vcc/Vfb/Vss/Isense
Frequency Fixed Frequency 70kHz Fixed Frequency 100kHz
Protection Auto restart mode Over Voltage Protection (33V) Overload & Open Loop Protection
Over Load Protection (Vfb = 4.8V & Vss = 5.3V)
(7.5V/Idelay = 4µA) Overvoltage Protection (Vcc = 16.5V & Vss = 4.0)
Over Current Latch (Vth = 2V) Thermal Shutdown (Typ. 140°C)
Latch Mode Thermal Shutdown (Typ. 160°C) —
UVLO 9~15V (Hysteresis: 6V) 8.5~13.5V (Hysteresis: 5V)
Start Up Current Max. 170µA Max 55µA
Max Duty Typ. 80% Typ. 72%
Peak Current Limit, Breakdown FS6M07652RTC: 2.0A/1.3/650V ICE2A165: 1.0A/3.0/650
Voltage & Rdson FS6M12653RTC: 3.2A/.073/650V ICE2A265: 2.0A/1.1/650
ICE2A365: 3.0A/0.5/650
ICE2A180: 1.0A/3.0/800
ICE2A280: 2.0A/0.9/800
Stand by Mode Burst mode operating Frequency Reduction
(f = 70kHz/Ipeak = 0.5A) (f = 21kHz)
Soft Start External External
Leading Edge Blanking Internal R-C Internal (200ns)
