Fairchild FSGM0565RB service manual

FSGM0565RB — Green-Mode Fairchild Power Switch (FPS™)

FSGM0565RB 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

Description

The FSGM0565RB 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.

March 2010

Applications

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

Combination

Ordering Information

(2)

(4)

Open

Frame

(5)

Replaces

Device

Operating

Part Number Package

TO-220F

FSGM0565RBWDTU

FSGM0565RBUDTU

FSGM0565RBLDTU

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.

or 100/115VAC with voltage doubler.

AC

6-Lead

W-

Forming

TO-220F 6-Lead

U-Forming

TO-220F 6-Lead

L-Forming

Junction

Temperature

(1)

-40°C ~ +125°C

(1)

-40°C ~ +125°C

(1)

-40°C ~ +125°C

Current

Limit

3.00A

R

DS(ON)

(Max.)

2.2Ω

Adapter

Output Power Table

230VAC ± 15%

(4)

70W 80W 41W 60W FSDM0565RE

(3)

85-265VAC

Open

(5)

Frame

Adapter

Application Circuit

FSGM0565RB — Green-Mode Fairchild Power Switch (FPS™)

Internal Block Diagram

Figure 1. Typical Application Circuit

Figure 2. Internal Block Diagram

Pin Configuration

6. V

STR

5. N.C.

4. FB

3. V

CC

2. GND

1. Drain

FSGM0565RB — Green-Mode Fairchild Power Switch (FPS™)

FSGM0565RB

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

STR

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 external capacitor connected to the V source (I

) is disabled.

CH

pin. Once VCC reaches 12V, the internal current

CC

FSGM0565RB — 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

DS

V

CC

V

FB

I

DM

I

Continuous Switching Drain Current

DS

EAS

PD

T

J

T

STG

V

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

STR

Drain Pin Voltage

VCC Pin Voltage

Feedback Pin Voltage

Drain Current Pulsed

Single Pulsed Avalanche Energy

Total Power Dissipation (T

=25°C)

C

Maximum Junction Temperature

Operating Junction Temperature

Storage Temperature

Minimum Isolation Voltage

Electrostatic Discharge Capability

(10)

Human Body Model, JESD22-A114 2

Charged Device Model, JESD22-C101 2

650 V

26 V

-0.3 12.0 V

11 A

=25°C

T

(6)

C

TC=100°C

(7)

(8)

(9)

5.6 A

3.4 A

295 mJ

45 W

150

-40 +125

-55 +150

°C

2.5 kV

kV

=0.75)

MAX

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

FSGM0565RB — Green-Mode Fairchild Power Switch (FPS™)

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

DS(ON)

C

ISS

OSS

Drain-Source On-State Resistance

Input Capacitance

Output Capacitance

(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

IFB Feedback Source Current V

V

START

V

STOP

UVLO Threshold Voltage

After Turn-on, V

VCC = 0V, ID = 250μA

V

= 520V, TA = 125°C

DS

V

= 10V, ID =1A 1.8 2.2 

GS

= 25V, V

DS

= 25V, V

DS

= 325V, ID = 4A, RG=25 26 ns

DS

= 325V, ID = 4A, RG=25 25 ns

DS

= 325V, ID = 4A, RG=25 14 ns

DS

= 325V, ID = 4A, RG=25 32 ns

DS

= 0V, f=1MHz 515 pF

GS

= 0V, f=1MHz 75 pF

GS

= 14V, V

CC

(13)

-25°C < TJ < 125°C ±5 ±10 %

= 14V, V

CC

= 14V, V

CC

= 0 160 210 260

FB

V

= 0V, V

FB

= 4V 60 66 72 kHz

FB

= 4V 65 70 75 %

FB

= 0V 0 %

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

0.3 0.4 0.5 V

STR

= 40V, V

Sweep 15 ms

CC

= 14V, VFB Sweep

CC

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

Output Short

Threshold VFB 1.8 2.0 2.2 V

Protection

t

OSP_FB

T

SD

Hys Hysteresis 30

Thermal Shutdown Temperature

Threshold Time

(13)

V

FB

Time

(13)

Blanking

di/dt = 300mA/μs

= 14V,V

CC

= 14V, V

CC

(13)(14)

300 ns

OSP Triggered when t

ON<tOSP

(Lasts Longer than t

Shutdown Temperature 130 140 150

Sweep 5.5 6.0 6.5 V

FB

= 4V 2.5 3.3 4.1

FB

& VFB>V

OSP

OSP_FB

)

650 V

250

μA

0.5 0.6 0.7 V

2.75 3.00 3.25 A

μA

1.0 1.2 1.4

2.0 2.5 3.0

μs

°C

Continued on the following page…

FSGM0565RB — 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

VCC = 14V, V

V

= 11V (Before VCC

CC

Reaches V

= V

CC

Supply Voltage VCC = V

= 0V 1.2 1.6 2.0 mA

FB

= 4V 2.0 2.5 3.0 mA

FB

START

= 0V, V

FB

= 0V, V

FB

)

= 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 FSDM0565RE and FSGM0565RB

Function FSDM0565RE FSGM0565RB Advantages of FSGM0565RB

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

Protections

OLP

OVP

TSD

OVP

OSP

AOCP

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 FSGM0565RB service manual

Specifications and Main Features

Frequently Asked Questions

User Manual