Fairchild FSL156MRIN service manual

FSL156MRIN Green-Mode Fairchild Power Switch (FPS™)

FSL156MRIN — Green-Mode Fairchild Power Switch (FPS™)

June 2012

Features

 Advanced Soft Burst Mode for Low Standby Power

and Low Audible Noise

 Random Frequency Fluctuation (RFF) for Low EMI  Pulse-by-Pulse Current Limit  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 , Line Over Voltage Protection (LOVP)

 Low Operating Current (0.4mA) in Burst Mode  Internal Startup Circuit  Internal High-Voltage SenseFET: 650V  Built-in Soft-Start: 15ms  Auto-Restart Mode

Applications

Power Supply for Home Appliances, LCD Monitors,



STBs, and DVD Players

Description

The FSL156MRIN is an integrated Pulse Width Modulation (PWM) controller and SenseFET specifically designed for offline Switched Mode Power Supplies (SMPS) with minimal external components. The PWM controller includes an integrated fixed-frequency oscillator, Line-Over Voltage Protection (LOVP), UnderVoltage Lockout (UVLO), Leading-Edge Blanking (LEB), optimized gate driver, internal soft-start, temperaturecompensated precise current sources for loop compensation, and self-protection circuitry. Compared with a discrete MOSFET and PWM controller solution, the FSL156MRIN reduces 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.

Ordering Information

Output Power Table

Operating

Part Number

Package

(1)

Junction

Temperature

FSL156MRIN

Notes:

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

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

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

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

8-DIP

-40°C ~ +125°C

Current

Limit

(Typ.)

1.6A

R

DS(ON)

(Max.)

2.2

230VAC ±15% 85-265V

Open

Adapter

(3)

Frame

26W 40W 20W 30W

(4)

Adapter

(2)

(3)

Frame

AC

Open

(4)

Application Circuit

AC

IN

FSL156MRIN — Green-Mode Fairchild Power Switch (FPS™)

V

O

V

IN

STR

Drain

GND

Internal Block Diagram

FB

V

CC

Figure 1. Typical Application Circuit

Figure 2. Internal Block Diagram

Pin Configuration

FSL156MRIN — Green-Mode Fairchild Power Switch (FPS™)

1. GND

2. V

CC

FSL156MRIN

3. FB

4. V

IN

Figure 3. Pin Assignments (Top View)

Pin Definitions

Pin # Name Description

1 GND

2 V

3 FB

4 V

5 V

6

7

Drain

8

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

CC

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 7V, the overload protection triggers, which shuts down the FPS.

Line Over-Voltage Input. This pin is the input pin of line voltage. The voltage, which is

divided by resistors, is the input of this pin. If this pin voltage is higher than V

IN

LOVP triggers, which shuts down the FPS. Do not leave this pin floating. If LOVP is not used, this pin should be directly connected to the GND.

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

SenseFET Drain. High-voltage power SenseFET drain connection.

) is disabled.

CH

pin. Once VCC reaches 12V, the internal current

CC

8. Drain

7. Drain

6. Drain

5. V

STR

voltage, the

INH

FSL156MRIN — 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

VDS Drain Pin Voltage 650 V

V

CC

V

Feedback Pin Voltage -0.3 10.0 V

FB

VIN VIN Pin Voltage -0.3 10.0 V

I

Drain Current Pulsed 4 A

DM

I

Continuous Switching Drain Current

DS

EAS Single-Pulsed Avalanche Energy

PD

T

J

T

Storage Temperature -55 +150

STG

ESD

Notes:

5. Repetitive peak switching current when the inductive load is assumed: limited by maximum duty (D

junction temperature (see Figure 4).

6. L=45mH, starting T

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

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

Pin Voltage 650 V

STR

Pin Voltage 26 V

CC

1.90

1.27

1.5 W

Total Power Dissipation (T

=25C)

C

T

=25C

(5)

C

TC=100C

(6)

190 mJ

(7)

Maximum Junction Temperature 150

Operating Junction Temperature

Electrostatic Discharge Capability

=25C.

J

Human Body Model, JESD22-A114

Charged Device Model, JESD22-C101

(8)

-40 +125

4.5

2.0

MAX

A

C

kV

=0.73) and

Figure 4. Repetitive Peak Sw itching Current

Thermal Impedance

TA=25°C unless otherwise specified.

Symbol Parameter Value Unit

JA Junction-to-Ambient Thermal Impedance

JL Junction-to-Lead Thermal Impedance

Notes:

9. JEDEC recommended environment, JESD51-2, and test board, JESD51-10, with minimum land pattern.

10. Measured on drain pin #7, close to the plastic interface.

(9)

85 °C/W

(10)

11 °C/W

FSL156MRIN — 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

Drain-Source On-State Resistance VGS=10V, ID=1A 1.8 2.2 

DS(ON)

C

Input Capacitance

ISS

C

Output Capacitance

OSS

(11)

V

(11)

V

=0V, ID=250A

CC

V

=520V, TA=125C

DS

=25V, VGS=0V, f=1MHz 515 pF

DS

=25V, VGS=0V, f=1MHz 75 pF

DS

tr Rise Time VDS=325V, ID=4A, RG=25 26 ns

tf Fall Time VDS=325V, ID=4A, RG=25 25 ns

t

Turn-On Delay VDS=325V, ID=4A, RG=25 14 ns

d(on)

t

Turn-Off Delay VDS=325V, ID=4A, RG=25 32 ns

d(off)

Control Section

f

Switching Frequency

S

f

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

t

V

RECOMM

SS

UVLO Threshold Voltage

After Turn-on, V

Internal Soft-Start Time V

Recommended VCC Range 13 23 V

(11)

V

(11)

=14V, VFB=4V 61 67 73 kHz

CC

-25C < T

=14V, VFB=4V 61 67 73 %

CC

=14V, VFB=0V 0 %

CC

=0 65 90 115 µA

FB

V

=0V, V

FB

STR

J

CC

=40V, V

< 125C

Sweep 11 12 13 V

=0V 7.0 7.5 8.0 V

FB

Sweep 15 ms

CC

Burst Mode Section

V

BURH

V

BURL

Burst-Mode Voltage VCC=14V, VFB Sweep

0.30 0.35 0.40 V

Hys 150 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

V

INH

V

INHYS

t

OSP

V

OSP

t

OSP_FB

TSD

T

HYS

Line Over-Voltage Protection Threshold Voltage

Line Over-Voltage Protection Hysteresis

Output-Short

Threshold VFB 1.8 2.0 2.2 V

Protection

V

Thermal Shutdown Temperature

Hysteresis 60

Threshold Time

(11)

FB

Blanking Time 2.0 2.5 3.0 µs

(11,12)

di/dt=300mA/s

=14V, V

CC

=14V, VFB=4V 1.2 2.0 2.8 µA

CC

Sweep 6.45 7.00 7.55 V

FB

300 ns

VCC=14V, V

Sweep 1.87 1.95 2.03 V

IN

Sweep 0.06 V

IN

OSP Triggered when t (Lasts Longer than t

Shutdown Temperature 125 135 145

(11)

ON<tOSP

& VFB>V

OSP

OSP_FB

650 V

250 µA

±5 ±10 %

0.45 0.50 0.55 V

1.45 1.60 1.75 A

0.7 1.0 1.3 µs

)

C

Continued on the following page…

Fairchild FSL156MRIN service manual

Specifications and Main Features

Frequently Asked Questions

User Manual