LM556CMXNOPB - TEXAS INSTRUMENTS

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October 2011

FSD156MRBN • Rev. 1.0.0

FSD156MRBN — Green-Mode Fairchild Power Switch (FPS™)

FSD156MRBN

Green-Mode Fairchild Power Switch (FPS™)

Features

 Advanced Soft Burst-Mode Operation for

Low Standby Power and Low Audible Noise

 Random Frequency Fluctuation (RFF) for Low EMI

 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

 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 LCD Monitor, STB, and DVD

Combination

Description

The FSD156MRBN 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), Leading-

Edge 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 FSD 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.

Ordering Information

Part Number Package

Operating

Junction

Temperature

Current

Limit

RDS(ON)

(Max.)

Output Power Table(2)

Replaces

Device

230VAC ±15%(3) 85-265VAC

Adapter(4) Open

Frame(5) Adapter(4) Open

Frame(5)

FSD156MRBN 8-DIP -40°C ~

+125°C 1.60A 2.3 26W 40W 20W 30W

FSFM300N

FSGM300

Notes:

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

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

3. 230VAC or 100/115VAC with voltage doubler.

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.

FSD156MRBN • Rev. 1.0.0 2

FSD156MRBN — Green-Mode Fairchild Power Switch (FPS™)

Application Circuit

Figure 1. Typical Application Circuit

Internal Block Diagram

Figure 2. Internal Block Diagram

FSD156MRBN • Rev. 1.0.0 3

FSD156MRBN — Green-Mode Fairchild Power Switch (FPS™)

Pin Configuration

4. N.C.

2. VCC

3. FB

1. GND

FSD156MRBN

8. Drain

5. Drain

7. Drain

6. Drain

Figure 3. Pin Configuration (Top View)

Pin Definitions

Pin # Name Description

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

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

current for both startup and steady-state operation.

3 FB

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 7.0V, the

overload protection triggers, which shuts down the FPS™.

4 NC

No Connection

5, 6, 7, 8 Drain SenseFET Drain. High-voltage power SenseFET drain connection.

FSD156MRBN • Rev. 1.0.0 4

FSD156MRBN — 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

VDS Drain Pin Voltage 650 V

VCC VCC Pin Voltage 26 V

VFB Feedback Pin Voltage -0.3 10.0 V

IDM Drain Current Pulsed 4 A

IDS Continuous Switching Drain Current(6) TC=25C 1.9 A

TC=100C 1.27 A

EAS Single Pulsed Avalanche Energy(7) 190 mJ

PD Total Power Dissipation (TC=25C)(8) 1.5 W

Maximum Junction Temperature 150 C

Operating Junction Temperature(9) -40 +125 C

TSTG Storage Temperature -55 +150 C

ESD Electrostatic

Discharge Capability

Human Body Model, JESD22-A114 5 kV

Charged Device Model, JESD22-C101 2

Notes:

6. Repetitive peak switching current when the inductive load is assumed: Limited by maximum duty (DMAX=0.73)

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.

Figure 4. Repetitive Peak Switching Current

Thermal Impedance

TA=25°C unless otherwise specified.

Symbol Parameter Value Unit

JA Junction-to-Ambient Thermal Impedance(10) 85 °C/W

JL Junction-to-Lead Thermal Impedance(11) 11 °C/W

Notes:

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

11. Measured on the SOURCE pin #7, close to the plastic interface.

FSD156MRBN • Rev. 1.0.0 5

FSD156MRBN — Green-Mode Fairchild Power Switch (FPS™)

Electrical Characteristics

TJ = 25C unless otherwise specified.

Symbol Parameter Conditions Min. Typ. Max. Unit

SenseFET Section

BVDSS Drain-Source Breakdown Voltage VCC = 0V, ID = 250A 650 V

IDSS Zero-Gate-Voltage Drain Current VDS = 650V, TA = 25C 250

A

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

CISS Input Capacitance(12) V

DS = 25V, VGS = 0V, f=1MHz 515 pF

COSS Output Capacitance(12) V

DS = 25V, VGS = 0V, f=1MHz 75 pF

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

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

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

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

Control Section

fS Switching Frequency(12) V

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

fS Switching Frequency Variation(12) -25C < TJ < 125C ±5 ±10 %

DMAX Maximum Duty Ratio VCC = 14V, VFB = 4V 61 67 73 %

DMIN Minimum Duty Ratio VCC = 14V, VFB = 0V 0 %

IFB Feedback Source Current VFB = 0 65 90 115 A

VSTART

UVLO Threshold Voltage VFB = 0V, VCC Sweep 11 12 13 V

VSTOP After Turn-on, VFB = 0V 7.0 7.5 8.0 V

tSS Internal Soft-Start Time VSTR = 40V, VCC Sweep 15 ms

VRECOMM Recommended VCC Range 13 23 V

Burst-Mode Section

VBURH

Burst-Mode Voltage VCC = 14V, VFB Sweep

0.45 0.50 0.55 V

VBURL 0.30 0.35 0.40 V

Hys 150 mV

Protection Section

ILIM Peak Drain Current Limit di/dt = 300mA/s 1.45 1.60 1.75 A

VSD Shutdown Feedback Voltage VCC = 14V, VFB Sweep 6.45 7.00 7.55 V

IDELAY Shutdown Delay Current VCC = 14V, VFB = 4V 1.2 2.0 2.8 A

tLEB Leading-Edge Blanking Time(12,14) 300 ns

VOVP Over-Voltage Protection VCC Sweep 23.0 24.5 26.0 V

tOSP

Output-Short

Protection(12)

Threshold Time OSP Triggered when

tON<tOSP & VFB>VOSP

(Lasts Longer than tOSP_FB)

0.7 1.0 1.3 s

VOSP Threshold VFB 1.8 2.0 2.2 V

tOSP_FB V

FB Blanking Time 2.0 2.5 3.0 s

TSD

Thermal Shutdown Temperature(12) Shutdown Temperature 125 135 145 C

THYS Hysteresis 60

C

Continued on the following page…

FSD156MRBN • Rev. 1.0.0 6

FSD156MRBN — 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

IOP

Operating Supply Current,

(Control Part in Burst Mode) VCC = 14V, VFB = 0V 0.3 0.4 0.5 mA

IOPS Operating Switching Current,

(Control Part and SenseFET Part) VCC = 14V, VFB = 2V 1.1 1.5 1.9 mA

ISTART Start Current VCC=11V (Before VCC

Reaches VSTART) 85 120 155 A

ICH Startup Charging Current VCC = VFB = 0V, VSTR = 40V 0.7 1.0 1.3 mA

VSTR Minimum VSTR Supply Voltage VCC = VFB = 0V, VSTR Sweep 26 V

Notes:

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

13. Average value.

14. tLEB includes gate turn-on time.

Comparison of FSGM300N and FSD156MRBN

Function FSGM300N FSD156MRBN Advantages of FSD156MRBN

Operating Current 1.5mA 0.4mA Very low standby power

Power Balance Long tCLD Very Short tCLD The difference of input power between the

low and high input voltage is quite small.

FSD156MRBN • Rev. 1.0.0 7

FSD156MRBN — Green-Mode Fairchild Power Switch (FPS™)

Typical Performance Characteristics

Characteristic graphs are normalized at TA=25°C.

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.15

1.20

‐40'C ‐20'C 0'C 25'C 50'C 75'C 90'C 110'C 120'C 125'C

Normalized

Temperature [ °C]

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.15

1.20

‐40'C ‐20'C 0'C 25'C 50'C 75'C 90'C 110'C 120'C 125'C

Normalized

Temperature [ °C]

Figure 5. Operating Supply Current (IOP) vs. TA Figure 6. Operating Switching Current (IOPS) vs. TA

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.15

1.20

‐40'C ‐20'C 0'C 25'C 50'C 75'C 90'C 110'C 120'C 125'C

Normalized

Temperature [ °C]

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.15

1.20

‐40'C ‐20'C 0'C 25'C 50'C 75'C 90'C 110'C 120'C 125'C

Normalized

Temperature [ °C]

Figure 7. Startup Charging Current (ICH) vs. TA Figure 8. Peak Drain Current Limit (ILIM) vs. TA

0.60

0.70

0.80

0.90

1.00

1.10

1.20

1.30

1.40

‐40'C ‐20'C 0'C 25'C 50'C 75'C 90'C 110'C 120'C 125'C

Normalized

Temperature [ °C]

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.15

1.20

‐40'C ‐20'C 0'C 25'C 50'C 75'C 90'C 110'C 120'C 125'C

Normalized

Temperature [ °C]

Figure 9. Feedback Source Current (IFB) vs. TA Figure 10. Shutdown Delay Current (IDELAY) vs. TA

FSD156MRBN • Rev. 1.0.0 8

FSD156MRBN — Green-Mode Fairchild Power Switch (FPS™)

Typical Performance Characteristics

Characteristic graphs are normalized at TA=25°C.

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.15

1.20

‐40'C ‐20'C 0'C 25'C 50'C 75'C 90'C 110'C 120'C 125'C

Normalized

Temperature [ °C]

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.15

1.20

‐40'C ‐20'C 0'C 25'C 50'C 75'C 90'C 110'C 120'C 125'C

Normalized

Temperature [ °C]

Figure 11. UVLO Threshold Voltage (VSTART) vs. TA Figure 12. UVLO Threshold Voltage (VSTOP) vs. TA

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.15

1.20

‐40'C ‐20'C 0'C 25'C 50'C 75'C 90'C 110'C 120'C 125'C

Normalized

Temperature [ °C]

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.15

1.20

‐40'C ‐20'C 0'C 25'C 50'C 75'C 90'C 110'C 120'C 125'C

Normalized

Temperature [ °C]

Figure 13. Shutdown Feedback Voltage (VSD) vs. TAFigure 14. Over-Voltage Protection (VOVP) vs. TA

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.15

1.20

‐40'C ‐20'C 0'C 25'C 50'C 75'C 90'C 110'C 120'C 125'C

Normalized

Temperature [ °C]

0.80

0.85

0.90

0.95

1.00

1.05

1.10

1.15

1.20

‐40'C ‐20'C 0'C 25'C 50'C 75'C 90'C 110'C 120'C 125'C

Normalized

Temperature [ °C]

Figure 15. Switching Frequency (fS) vs. TA Figure 16. Maximum Duty Ratio (DMAX) vs. TA

FSD156MRBN • Rev. 1.0.0 9

FSD156MRBN — Green-Mode Fairchild Power Switch (FPS™)

Functional Description

1. Startup: At startup, an internal high-voltage current

source supplies the internal bias and charges the

external capacitor (CVcc) connected to the VCC pin, as

illustrated in Figure 17. When VCC reaches 12V, the

FSD156MRBN begins switching and the internal high-

voltage current source is disabled. Normal switching

operation continues and the power is supplied from the

auxiliary transformer winding unless VCC goes below the

stop voltage of 7.5V.

Figure 17. Startup Block

2. Soft-Start: The internal soft-start circuit increases

PWM comparator inverting input voltage, together with

the SenseFET current, slowly after startup. The typical

soft-start time is 15ms. The pulse width to the power

switching device is progressively increased to establish

the correct working conditions for the transformers,

inductors, and capacitors. The voltage on the output

capacitors is progressively increased to smoothly

establish the required output voltage. This helps prevent

transformer saturation and reduces stress on the

secondary diode during startup.

3. Feedback Control: This device employs Current-

Mode control, as shown in Figure 18. An opto-coupler

(such as the FOD817) and shunt regulator (such as the

KA431) are typically used to implement the feedback

network. Comparing the feedback voltage with the

voltage across the RSENSE resistor makes it possible to

control the switching duty cycle. When the reference pin

voltage of the shunt regulator exceeds the internal

reference voltage of 2.5V, the opto-coupler LED current

increases, pulling down the feedback voltage and

reducing drain current. This typically occurs when the

input voltage is increased or the output load is decreased.

3.1 Pulse-by-Pulse Current Limit: Because Current-

Mode control is employed, the peak current through

the SenseFET is limited by the inverting input of PWM

comparator (VFB*), as shown in Figure 18. Assuming

that the 90A current source flows only through the

internal resistor (3R + R =25k), the cathode voltage

of diode D2 is about 2.8V. Since D1 is blocked when

the feedback voltage (VFB) exceeds 2.8V, the

maximum voltage of the cathode of D2 is clamped at

this voltage. Therefore, the peak value of the current

through the SenseFET is limited.

3.2 Leading-Edge Blanking (LEB): At the instant the

internal SenseFET is turned on, a high-current spike

usually occurs through the SenseFET, caused by

primary-side capacitance and secondary-side rectifier

reverse recovery. Excessive voltage across the RSENSE

resistor leads to incorrect feedback operation in the

Current-Mode PWM control. To counter this effect, the

leading-edge blanking (LEB) circuit inhibits the PWM

comparator for tLEB (300ns) after the SenseFET is

turned on.

Figure 18. Pulse Width Modulation Circuit

FSD156MRBN • Rev. 1.0.0 10

FSD156MRBN — Green-Mode Fairchild Power Switch (FPS™)

4. Protection Circuits: The FSD156MRBN has several

self-protective functions, such as Overload Protection

(OLP), Abnormal Over-Current Protection (AOCP),

Output-Short Protection (OSP), Over-Voltage Protection

(OVP), and Thermal Shutdown (TSD). All the

protections are implemented as auto-restart. Once the

fault condition is detected, switching is terminated and

the SenseFET remains off. This causes VCC to fall.

When VBCCB falls to the Under-Voltage Lockout (UVLO)

stop voltage of 7.5V, the protection is reset and the

startup circuit charges the VCC capacitor. When VCC

reaches the start voltage of 12.0V, the FSD156MRBN

resumes normal operation. If the fault condition is not

removed, the SenseFET remains off and VCC drops to

stop voltage again. In this manner, the auto-restart can

alternately enable and disable the switching of the

power SenseFET until the fault condition is eliminated.

Because these protection circuits are fully integrated

into the IC without external components, reliability is

improved without increasing cost.

Figure 19. Auto-Restart Protection Waveforms

4.1 Overload Protection (OLP): Overload is defined

as the load current exceeding its normal level due to

an unexpected abnormal event. In this situation, the

protection circuit should trigger to protect the SMPS.

However, even when the SMPS is in normal

operation, the overload protection circuit can be

triggered during the load transition. To avoid this

undesired operation, the overload protection circuit is

designed to trigger only after a specified time to

determine whether it is a transient situation or a true

overload situation. Because of the pulse-by-pulse

current limit capability, the maximum peak current

through the SenseFET is limited and, therefore, the

maximum input power is restricted with a given input

voltage. If the output consumes more than this

maximum power, the output voltage (VOUT) decreases

below the set voltage. This reduces the current

through the opto-coupler LED, which also reduces the

opto-coupler transistor current, increasing the

feedback voltage (VFB). If VFB exceeds 2.5V, D1 is

blocked and the 2.0µA current source starts to charge

CFB slowly up. In this condition, VFB continues

increasing until it reaches 7.0V, when the switching

operation is terminated, as shown in Figure 20. The

delay for shutdown is the time required to charge CFB

from 2.5V to 7.0V with 2.0µA. A 25 ~ 50ms delay is

typical for most applications. This protection is

implemented in Auto-Restart Mode.

Figure 20. Overload Protection

4.2 Abnormal Over-Current Protection (AOCP):

When the secondary rectifier diodes or the

transformer pins are shorted, a steep current with

extremely high di/dt can flow through the SenseFET

during the minimum turn-on time. Even though the

FSD156MRBN has overload protection, it is not

enough to protect the FSD156MRBN in that abnormal

case; due to the severe current stress imposed on the

SenseFET until OLP is triggered. The internal AOCP

circuit is shown in Figure 21. When the gate turn-on

signal is applied to the power SenseFET, the AOCP

block is enabled and monitors the current through the

sensing resistor. The voltage across the resistor is

compared with a preset AOCP level. If the sensing

resistor voltage is greater than the AOCP level, the

set signal is applied to the S-R latch, resulting in the

shutdown of the SMPS.

Figure 21. Abnormal Over-Current Protection

FSD156MRBN • Rev. 1.0.0 11

FSD156MRBN — Green-Mode Fairchild Power Switch (FPS™)

4.3. Output-Short Protection (OSP): If the output is

shorted, steep current with extremely high di/dt can

flow through the SenseFET during the minimum turn-

on time. Such a steep current brings high-voltage

stress on the drain of the SenseFET when turned off.

To protect the device from this abnormal condition,

OSP is included. It is comprised of detecting VFB and

SenseFET turn-on time. When the VFB is higher than

2.0V and the SenseFET turn-on time is lower than

1.0s, this condition is recognized as an abnormal

error and PWM switching shuts down until VCC

reaches VSTART again. An abnormal condition output

short is shown in Figure 22.

Figure 22. Output-Short Protection

4.4 Over-Voltage Protection (OVP): If the

secondary-side feedback circuit malfunctions or a

solder defect causes an opening in the feedback path,

the current through the opto-coupler transistor

becomes almost zero. Then VFB climbs up in a similar

manner to the overload situation, forcing the preset

maximum current to be supplied to the SMPS until the

overload protection is triggered. Because more

energy than required is provided to the output, the

output voltage may exceed the rated voltage before

the overload protection is triggered, resulting in the

breakdown of the devices in the secondary side. To

prevent this situation, an OVP circuit is employed. In

general, the VCC is proportional to the output voltage

and the FSD156MRBN uses VCC instead of directly

monitoring the output voltage. If VCC exceeds 24.5V,

an OVP circuit is triggered, resulting in the termination

of the switching operation. To avoid undesired

activation of OVP during normal operation, VCC should

be designed to be below 24.5V.

4.5 Thermal Shutdown (TSD): The SenseFET and

the control IC on a die in one package makes it easier

for the control IC to detect the over temperature of the

SenseFET. If the temperature exceeds ~135C, the

thermal shutdown is triggered and stops operation.

The FSD156MRBN operates in Auto-Restart Mode

until the temperature decreases to around 75C,

when normal operation resumes.

5. Soft Burst-Mode Operation: To minimize power

dissipation in Standby Mode, the FSD156MRBN enters

Burst-Mode operation. As the load decreases, the

feedback voltage decreases. As shown in Figure 23, the

device automatically enters Burst Mode when the

feedback voltage drops below VBURL (350mV). At this

point, switching stops and the output voltages start to

drop at a rate dependent on standby current load. This

causes the feedback voltage to rise. Once it passes

VBURH (500mV), switching resumes. The feedback

voltage then falls and the process repeats. Burst Mode

alternately enables and disables SenseFET switching,

reducing switching loss in Standby Mode.

Figure 23. Figure 23. Burst-Mode Operation

6. Random Frequency Fluctuation (RFF): Fluctuating

switching frequency of an SMPS can reduce EMI by

spreading the energy over a wide frequency range. The

amount of EMI reduction is directly related to the

switching frequency variation, which is limited internally.

The switching frequency is determined randomly by

external feedback voltage and internal free-running

oscillator at every switching instant. RFF effectively

scatters EMI noise around typical switching frequency

(67kHz) and can reduce the cost of the input filter

included to meet the EMI requirements (e.g. EN55022).

Figure 24. Random Frequency Fluctuation

FSD156MRBN • Rev. 1.0.0 12

FSD156MRBN — Green-Mode Fairchild Power Switch (FPS™)

Typical Application Circuit

Application Input Voltage Rated Output Rated Power

LCD Monitor

Power Supply 85 ~ 265VAC 5.0V(2A)

14.0V(1.3A) 28.2W

Key Design Notes

1. The delay for overload protection is designed to be about 30ms with C105 (8.2nF). OLP time between 39ms

(12nF) and 46ms (15nF) is recommended.

2. The SMD-type capacitor (C106) must be placed as close as possible to the VCC pin to avoid malfunction by

abrupt pulsating noises and to improve ESD and surge immunity. Capacitance between 100nF and 220nF is

recommended.

Schematic

Figure 25. Schematic

FSD156MRBN • Rev. 1.0.0 13

FSD156MRBN — Green-Mode Fairchild Power Switch (FPS™)

Transformer

Figure 26. Schematic of Transformer

Winding Specification

Pin(S → F) Wire Turns Winding Method Barrier Tape

TOP BOT Ts

Np /2 3  2 0.25×1 22 Solenoid Winding - 2.0mm 1

Insulation: Polyester Tape t = 0.025mm, 2 Layers

N5V 7  6 0.4×2 (TIW) 3 Solenoid Winding - 3.0mm 1

Insulation: Polyester Tape t = 0.025mm, 2 Layers

Na 4  5 0.2×1 8 Solenoid Winding 4.0mm 3.0mm 1

Insulation: Polyester Tape t = 0.025mm, 2 Layers

N5V 8  6 0.4×2 (TIW) 3 Solenoid Winding - 3.0mm 1

Insulation: Polyester Tape t = 0.025mm, 2 Layers

N14V 10  8 0.4×2 (TIW) 5 Solenoid Winding 2.0mm 1

Insulation: Polyester Tape t = 0.025mm, 2 Layers

Np/2 2  1 0.25×1 22 Solenoid Winding - 2.0mm 1

Insulation: Polyester Tape t = 0.025mm, 2 Layers

Electrical Characteristics

Pin Specification Remark

Inductance 1－3 826H ±6% 67kHz, 1V

Leakage 1－3 15H Maximum Short all other pins

Core & Bobbin

 Core: EER3016 (Ae=109.7mm2)

 Bobbin: EER3016

FSD156MRBN • Rev. 1.0.0 14

FSD156MRBN — Green-Mode Fairchild Power Switch (FPS™)

Bill of Materials

Part # Value Note Part # Value Note

Fuse Capacitor

F101 250V 2A C101 220nF/275V Box (Pilkor)

NTC C102 150nF/275V Box (Pilkor)

NTC101 5D-9 DSC C103

100F/400V Electrolytic (SamYoung)

Resistor C104 3.3nF/630V Film (Sehwa)

R101 1.5M, J 1W C105 15nF/100V Film (Sehwa)

R103 43k, J 1W C106 100nF SMD (2012)

R201 1.5k, F 1/4W, 1% C107 47F/50V Electrolytic (SamYoung)

R202 1.0k, F 1/4W, 1% C201 820F/25V Electrolytic (SamYoung)

R203 18k, F 1/4W, 1% C202 820F/25V Electrolytic (SamYoung)

R204 8k, F 1/4W, 1% C203 2200F/10V Electrolytic (SamYoung)

R205 8k, F 1/4W, 1% C204 1000F/16V Electrolytic (SamYoung)

C205 47nF/100V Film (Sehwa)

C301 2.2nF/Y2 Y-cap (Samhwa)

IC Inductor

FPS FSD156MRBN Fairchild LF101 20mH Line filter 0.5Ø

IC201 KA431LZ Fairchild L201 5H 5A Rating

IC301 FOD817B Fairchild L202 5H 5A Rating

Diode Transformer

D101 1N4007 Vishay T101 826uH

D102 UF4007 Vishay

ZD101 1N4750 Vishay

D201 MBRF10H100 Fairchild

D202 MBRF1060 Fairchild

BD101 G2SBA60 Vishay

FSD156MRBN • Rev. 1.0.0 15

FSD156MRBN — Green-Mode Fairchild Power Switch (FPS™)

Package Dimensions

Figure 27. 8-Lead, MDIP, JEDEC MS-001, .300" Wide

Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner

without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or

obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions,

specifically the warranty therein, which covers Fairchild products.

Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:

http://www.fairchildsemi.com/packaging/.

5.08 MAX

0.33 MIN

2.54

7.62

0.56

0.355

1.65

1.27

3.683

3.20

3.60

3.00

6.67

6.096

9.83

9.00

7.62

9.957

7.87

0.356

0.20

NOTES: UNLESS OTHERWISE SPECIFIED

A) THIS PACKAGE CONFORMS TO

JEDEC MS-001 VARIATION BA

B) ALL DIMENSIONS ARE IN MILLIMETERS.

C) DIMENSIONS ARE EXCLUSIVE OF BURRS,

MOLD FLASH, AND TIE BAR EXTRUSIONS.

D) DIMENSIONS AND TOLERANCES PER

ASME Y14.5M-1994

8.255

7.61

E) DRAWING FILENAME AND REVSION: MKT-N08FREV2.

(0.56)

FSD156MRBN • Rev. 1.0.0 16

FSD156MRBN — Green-Mode Fairchild Power Switch (FPS™)

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