Fairchild FSGM0465R service manual

FSGM0465R

FSGM0465R — Green-Mode Fairchild Power Switch (FPS™)

April 2012

Green-Mode Fairchild Power Switch (FPS™)

Features

 Soft Burst-Mode Operation for Low Standby Power

Consumption and Low Noise

 Precision Fixed Operating Frequency: 66kHz  Pulse-by-Pulse Current Limit  Various Protection Functions: Overload Protection

(OLP), Over-Voltage Protection (OVP), Abnormal Over-Current Protection (AOCP), Internal Thermal Shutdown (TSD) with Hysteresis, Output-Short Protection (OSP), and Under-Voltage Lockout (UVLO) with Hysteresis

 Auto-Restart Mode  Internal Startup Circuit  Internal High-Voltage SenseFET: 650V  Built-in Soft-Start: 15ms

Applications

 Power Supply for LCD TV and Monitor, STB and DVD

Combination

Description

The FSGM0465R is an integrated Pulse Width Modulation (PWM) controller and SenseFET specifically designed for offline Switch-Mode Power Supplies (SMPS) with minimal external components. The PWM controller includes an integrated fixed-frequency oscillator, Under-Voltage Lockout (UVLO), LeadingEdge Blanking (LEB), optimized gate driver, internal soft-start, temperature-compensated precise current sources for loop compensation, and self-protection circuitry. Compared with a discrete MOSFET and PWM controller solution, the FSGM series can reduce total cost, component count, size, and weight; while simultaneously increasing efficiency, productivity, and system reliability. This device provides a basic platform suited for cost-effective design of a flyback converter.

Related Resources

 Fairchild Power Supply WebDesigner — Flyback

Design & Simulation - In Minutes at No Expense

Ordering Information

Operating

Part Number Package

TO-220F

FSGM0465RWDTU

FSGM0465RUDTU

FSGM0465RLDTU

Notes:

1. Pb-free package per JEDEC J-STD-020B.

2. The junction temperature can limit the maximum output power.

3. 230V

4. Typical continuous power in a non-ventilated enclosed adapter measured at 50°C ambient temperature.

5. Maximum practical continuous power in an open-frame design at 50°C ambient temperature.

AC

6-Lead

W-

Forming

TO-220F 6-Lead

U-Forming

TO-220F 6-Lead

L-Forming

or 100/115VAC with voltage doubler.

Junction

Temperature

(1)

-40°C ~ +125°C

(1)

-40°C ~ +125°C

(1)

-40°C ~ +125°C

Current

Limit

1.80A

R

DS(ON)

(Max.)

2.6Ω

230VAC ± 15%

Adapter

60W 70W 33W 48W FSDM0465RE

Output Power Table

(3)

85-265VAC

Open

(4)

Frame

(5)

Adapter

(2)

(4)

Frame

Open

(5)

Replaces

Device

Application Circuit

FSGM0465R — Green-Mode Fairchild Power Switch (FPS™)

Internal Block Diagram

Figure 1. Typical Application Circuit

Figure 2. Internal Block Diagram

Pin Configuration

FSGM0465R — Green-Mode Fairchild Power Switch (FPS™)

Figure 3. Pin Configuration (Top View)

Pin Definitions

Pin # Name Description

1 Drain

2 GND

3 VCC

4 FB

5 N.C. No connection.

6 V

SenseFET Drain. High-voltage power SenseFET drain connection.

Ground. This pin is the control ground and the SenseFET source.

Power Supply. This pin is the positive supply input, which provides the internal operating

current for both startup and steady-state operation. Feedback. This pin is internally connected to the inverting input of the PWM comparator.

The collector of an opto-coupler is typically tied to this pin. For stable operation, a capacitor should be placed between this pin and GND. If the voltage of this pin reaches 6V, the overload protection triggers, which shuts down the FPS.

Startup. This pin is connected directly, or through a resistor, to the high-voltage DC link. At startup, the internal high-voltage current source supplies internal bias and charges the

STR

external capacitor connected to the V source (I

) is disabled.

CH

pin. Once VCC reaches 12V, the internal current

CC

FSGM0465R — Green-Mode Fairchild Power Switch (FPS™)

Absolute Maximum Ratings

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only.

Symbol Parameter Min. Max. Unit

V

STR

V

Drain Pin Voltage 650 V

DS

V

CC

V

FB

I

Drain Current Pulsed 10 A

DM

I

Continuous Switching Drain Current

DS

EAS Single Pulsed Avalanche Energy

PD

T

J

T

STG

V

Minimum Isolation Voltage

ISO

ESD

Notes:

6. Repetitive peak switching current when the inductive load is assumed: Limited by maximum duty (D and junction temperature (see Figure 4).

7. L=45mH, starting TJ=25°C.

8. Infinite cooling condition (refer to the SEMI G30-88).

9. Although this parameter guarantees IC operation, it does not guarantee all electrical characteristics.

10. The voltage between the package back side and the lead is guaranteed.

Pin Voltage 650 V

STR

Pin Voltage 26 V

CC

Feedback Pin Voltage

Total Power Dissipation(TC=25°C)

Maximum Junction Temperature

Operating Junction Temperature

Storage Temperature

(10)

2.5 kV

Electrostatic Discharge Capability

Human Body Model, JESD22-A114 2

Charged Device Model, JESD22-C101 2

-0.3

T

=25°C

(6)

C

TC=100°C

(7)

250 mJ

(8)

5.0 A

3.2 A

45 W

150

(9)

-40

-55

12.0 V

+125

+150

MAX

°C

kV

=0.75)

I

DS

D

MAX

f

SW

Figure 4. Repetitive Peak Switching Current

Thermal Impedance

TA=25°C unless otherwise specified.

Symbol Parameter Value Unit

JA Junction-to-Ambient Thermal Impedance

JC Junction-to-Case Thermal Impedance

Notes:

11. Infinite cooling condition (refer to the SEMI G30-88).

12. Free standing with no heat-sink under natural convection.

(11)

62.5 °C/W

(12)

3 °C/W

Electrical Characteristics

TJ = 25°C unless otherwise specified.

Symbol Parameter Conditions Min. Typ. Max. Unit

SenseFET Section

BV

Drain-Source Breakdown Voltage

DSS

I

Zero-Gate-Voltage Drain Current

DSS

R

Drain-Source On-State Resistance VGS=10V, ID =1A 2.1 2.6 

DS(ON)

C

Input Capacitance

ISS

C

Output Capacitance

OSS

(13)

V

(13)

V

tr Rise Time V

tf Fall Time V

t

Turn-on Delay Time V

d(on)

t

Turn-off Delay Time V

d(off)

Control Section

f

Switching Frequency V

S

Δf

D

MAX

D

MIN

Switching Frequency Variation

S

Maximum Duty Ratio V

Minimum Duty Ratio V

(13)

IFB Feedback Source Current V

V

START

V

STOP

UVLO Threshold Voltage

After Turn-on, V

V

= 0V, ID = 250μA

CC

V

= 520V, TA = 125°C

DS

= 25V, V

DS

= 25V, V

DS

= 325V, ID = 4A, RG=25 24 ns

DS

= 325V, ID = 4A, RG=25 24 ns

DS

= 325V, ID = 4A, RG=25 13 ns

DS

= 325V, ID = 4A, RG=25 30 ns

DS

= 0V,f=1MHz 436 pF

GS

= 0V,f=1MHz 65 pF

GS

= 14V, V

CC

-25°C < T

= 14V, V

CC

= 14V, V

CC

= 0V, V

V

FB

= 4V, 60 66 72 kHz

FB

< +125°C

J

= 4V 65 70 75 %

FB

= 0V 0 %

FB

= 0 160 210 260

FB

Sweep 11 12 13 V

CC

= 0V 7.0 7.5 8.0 V

FB

VOP VCC Operating Range 13 23 V

t

Internal Soft-Start Time V

S/S

Burst-Mode Section

V

BURH

V

BURL

Burst-Mode Voltage V

0.4 0.5 0.6 V

= 40V, V

STR

CC

= 14V, VFB Sweep

CC

Sweep 15 ms

Hys 200 mV

Protection Section

I

Peak Drain Current Limit

LIM

V

Shutdown Feedback Voltage V

SD

I

Shutdown Delay Current V

DELAY

t

Leading-Edge Blanking Time

LEB

V

Over-Voltage Protection VCC Sweep 23.0 24.5 26.0 V

OVP

t

OSP

V

OSP

t

OSP_FB

T

Output Short

Threshold VFB 1.8 2.0 2.2 V

Protection

V

SD

Thermal Shutdown Temperature

Threshold Time

(13)

FB

di/dt = 300mA/μs

= 14V, V

CC

(13)(14)

300 ns

OSP Triggered when t

Blanking Time 2.0 2.5 3.0

(Lasts Longer than t

(13)

Shutdown Temperature 130 140 150

Sweep 5.5 6.0 6.5 V

FB

= 14V, V

& V

= 4V 2.5 3.3 4.1

FB

ON<tOSP

FB>VOSP

OSP_FB

Hys Hysteresis 30

650 V

250

±5 ±10 %

0.6 0.7 0.8 V

1.64 1.80 1.96 A

1.0 1.2 1.4

)

Continued on the following page…

μA

μs

°C

FSGM0465R — Green-Mode Fairchild Power Switch (FPS™)

Electrical Characteristics (Continued)

TJ = 25°C unless otherwise specified.

Symbol Parameter Conditions Min. Typ. Max. Unit

Total Device Section

I

OP

I

OPS

I

START

I

CH

V

STR

Operating Supply Current, (Control Part in Burst Mode)

Operating Switching Current, (Control Part and SenseFET Part)

Start Current

Startup Charging Current V

Minimum V

STR

V

CC

VCC = 14V, V

V

CC

Reaches V

= V

CC

Supply Voltage VCC = V

= 14V, V

= 11V (Before VCC

= 0V, V

FB

= 0V, V

FB

= 0V 1.2 1.6 2.0 mA

FB

= 4V 2.0 2.5 3.0 mA

FB

)

START

= 40V 1.00 1.15 1.30 mA

STR

Sweep 26 V

STR

0.5 0.6 0.7 mA

Notes:

13. Although these parameters are guaranteed, they are not 100% tested in production.

14. t

includes gate turn-on time.

LEB

Comparison of FSDM0465RE and FSGM0465R

Function FSDM0465RE FSGM0465R Advantages of FSGM0465R

Burst Mode Advanced Burst Advanced Soft Burst Low noise and low standby power

Lightning Surge Strong

Soft-Start 10ms (Built-in) 15ms (Built-in) Longer soft-start time

OLP

OVP

OSP

AOCP

Protections

OLP

OVP

TSD

TSD with Hysteresis

Power Balance Long T

Very Short T

CLD

Enhanced SenseFET and controller against

lightning surge

Enhanced protections and high reliability

The difference of input power between the low

and high input voltage is quite small

Fairchild FSGM0465R service manual

Specifications and Main Features

Frequently Asked Questions

User Manual