Datasheet FSQ510, FSQ510MX Specification

FSQ510, FSQ510H, and FSQ510M

FSQ510, FSQ510H, and FSQ510M — Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter

January 2009

Green Mode Fairchild Power Switch (FPS™)

for Valley Switching Converter – Low EMI and High Efficiency

Features



Uses an LDMOS Integrated Power Switch

 Optimized for Valley Switching Converter (VSC)  Low EMI through Variable Frequency Control and

Inherent Frequency Modulation

 High Efficiency through Minimum Drain Voltage

Switching

 Extended Valley Switching for Wide Load Ranges  Small Frequency Variation for Wide Load Ranges  Advanced Burst-Mode Operation for Low Standby

Power Consumption

 Pulse-by-Pulse Current Limit  Protection Functions: Overload Protection (OLP),

Internal Thermal Shutdown (TSD) with Hysteresis

 Under-Voltage Lockout (UVLO) with Hysteresis  Internal Startup Circuit  Internal High-Voltage SenseFET: 700V  Built-in Soft-Start: 5ms

Applications

 Auxiliary Power Supplies for LCD TV, LCD Monitor,

Personal Computer, and White Goods

Description

A Valley Switching Converter (VSC) generally shows lower EMI and higher power conversion efficiency than a conventional hard-switched converter with a fixed switching frequency. The FSQ510 (H or M) is an integrated valley switching pulse width modulation (VSPWM) controller and SenseFET specifically designed for offline switch-mode power supplies (SMPS) for valley switching with minimal external components. The VS-PWM controller includes an integrated 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 discrete MOSFET and PWM controller solutions, the FSQ510 (H or M) can reduce total cost, component count, size and weight; while simultaneously increasing efficiency, productivity, and system reliability. This device provides a platform for cost-effective designs of a valley switching flyback converters.

Ordering Information

Operating

Part

Number

FSQ510 7-DIP

FSQ510H 8-DIP

FSQ510M 7-MLSOP

For Fairchild’s definition of “green” Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.

Notes:

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

2. 230V

3. Typical continuous power with a Fairchild charger evaluation board described in this datasheet in a non-

4. Maximum practical continuous power for auxiliary power supplies in an open-frame design at 50°C ambient temperature.

Package

or 100/115VAC with voltage doubler.

AC

ventilated, enclosed adapter housing, measured at 50°C ambient temperature.

Eco

Status

RoHS

Junction

Temperature

-40 to +130°C

Current

Limit

320mA

R

DS(ON)

(MAX)

32Ω

Adapter

Output Power Table

230VAC ± 15%

(3)

5.5W 9W 4W 6W

(2)

85-265VAC

Open

Frame

Adapter

(4)

(1)

(3)

Open

Frame

Replaces

Devices

(4)

FSD210B

FSD210DH

FSD210BM

Application Circuit

AC

FSQ510, FSQ510H, and FSQ510M — Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter

Vo

IN

V

str

D

VS

Sync

-PWM

V

fb

V

cc

GND

Figure 1. Typical Application Circuit

Internal Block Diagram

V

REFVREF

I

3

V

fb

(2)

0.85V / 0.75V

4.7V

delay

OLP

FB

I

6R

0.7V / 0.1V

R

TSD

Sync

4 (3)

200ns

delay

OSC

A/R

V

CC

5 (7)

UVLO V

8.7V / 6.7V

S

Q

R

S

Q

R

360ns

LEB

5ms

S/S

REF

V

str

8 (1)

R

(0.4V)

D

7 (8)

sense

n(m):n stands for the pin number of 7-DIP and 7-MLSOP

m stands for the pin number of 8-DIP

1,2

(4,5,6) GND

Figure 2. Internal Block Diagram

Pin Assignments

FSQ510, FSQ510H, and FSQ510M — Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter

V

str

V

fb

FSQ510H

Sync

GND

Figure 3. Package Diagrams for FSQ510(M) and FSQ510H

Pin Definitions

7-Pin 8-Pin Name Description

1, 2

3 2 V

4 3 Sync

5 7 V

7 8 D High-voltage power SenseFET drain connection.

8 1 V

4, 5, 6 GND This pin is the control ground and the SenseFET source.

This pin is internally connected to the inverting input of the PWM comparator. The collector of an opto-coupler is typically tied to this

fb

pin. For stable operation, a capacitor should be placed between this pin and GND. If the voltage of this pin reaches 4.7V, the overload protection triggers, which shuts down the FPS.

This pin is internally connected to the sync-detect comparator for valley switching. In normal valley-switching operation, the threshold of the sync comparator is 0.7V/0.1V.

CC

This pin is the positive supply input. This pin provides internal operating current for both startup and steady-state operation.

This pin is connected directly, or through a resistor, to the highvoltage DC link. At startup, the internal high-voltage current source

str

supplies internal bias and charges the external capacitor connected to the V

pin. Once VCC reaches 8.7V, the internal current source is

CC

disabled.

D

V

cc

GND

FSQ510, FSQ510H, and FSQ510M — Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter

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 700 V

DS

V

Supply Voltage 20 V

CC

V

FB

V

Sync Pin Voltage -0.3 6.5 V

Sync

P

Total Power Dissipation

D

T

J

T

Storage Temperature -55 +150

STG

Notes:

5. V

is internally clamped at 6.5V (I

FB

6. The maximum value of the recommended operating junction temperature is limited by thermal shutdown.

Pin Voltage 500 V

str

Feedback Voltage Range

7-DIP

7-MLSOP

-0.3

1.38

Internally

Clamped

(5)

8-DIP 1.47

Maximum Junction Temperature +150

Recommended Operating Junction Temperature

(6)

CLAMP_MAX

<100uA) which has a tolerance between 6.2V and 7.2V.

-40 +140

V

W

°C

Thermal Impedance

TA=25°C unless otherwise specified. Items are tested with the standards JESD 51-2 and 51-10 (DIP).

Symbol Parameter Value Unit

7-DIP, 7-MLSOP

θJA Junction-to-Ambient Thermal Impedance

θJC Junction-to-Case Thermal Impedance

8-DIP

θJA Junction-to-Ambient Thermal Impedance

θJC Junction-to-Case Thermal Impedance

Notes:

7. Free-standing with no heatsink; without copper clad; measurement condition - just before junction temperature T

enters into TSD.

J

8. Measured on the DRAIN pin close to plastic interface.

(7)

90 °C/W

(8)

13 °C/W

(7)

85 °C/W

(8)

13 °C/W

TElectrical Characteristics

T J=25°C unless otherwise specified.

Symbol Parameter Conditions Min. Typ. Max. Unit

SenseFET Section

BV

I

DSS

R

DS(ON)

C

ISS

C

OSS

tr

tf

Control Section

fS

ΔfS

IFB

tBB

tBW

D

MAX

D

MIN

V

START

V

STOP

t

S/S

Burst-Mode Section

V

BURH

V

BURL

HYS

Protection Section

I

LIM

VSD

I

DELAY

t

LEB

TSD

HYS

Synchronous Section

VSH

VSL

t

Sync

Total Device Section

IOP

ICH

V

STR

Note:

9. These parameters, although guaranteed, are not 100% tested in production.

Drain-Source Breakdown Voltage

DSS

Zero-Gate-Voltage Drain Current VDS=700V

Drain-Source On-State Resistance

Input Capacitance

Output Capacitance

Rise Time

Fall Time

(9)

V

(9)

V

CC

TJ=25°C, ID=180mA

T

=100°C, ID=180mA

J

GS

DS

Initial Switching Frequency VCC=11V, VFB=5V, V

Switching Frequency Variation

(9)

-25°C < T

Feedback Source Current VCC=11V, VFB=0V

V

Switching Blanking Time

Valley Detection Window Time

Maximum Duty Ratio VCC=11V, VFB=3V

Minimum Duty Ratio VCC=11V, VFB=0V

UVLO Threshold Voltage

Internal Soft-Start Time V

(9)

CC

V

sync

VFB=0V, VCC Sweep

After Turn-on, V

STR

=0V, ID=100μA

=11V

=40V

=350V, ID=25mA

=350V, lD=25mA

< 125°C

J

=11V, VFB=1V,

Frequency Sweep

=0V

FB

=40V, VCC Sweep

sync

=0V

700 V

150

28 32 

42 48 

96 pF

28 pF

100 ns

50 ns

87.7 94.3 100.0 kHz

±5 ±8 %

200 225 250

7.2 7.6 8.2

3.0

54 60 66 %

0 %

8.0 8.7 9.4 V

6.0 6.7 7.4 V

3 5 7 ms

0.75 0.85 0.95 V

Burst-Mode Voltage VCC=11V, VFB Sweep

0.65 0.75 0.85 V

100 mV

Peak Current Limit di/dt=90mA/µs

Shutdown Feedback Voltage

Shutdown Delay Current

Leading-Edge Blanking Time

FSQ510H

FSQ510(M)

Thermal Shutdown Temperature

Synchronous Threshold Voltage

Synchronous Delay Time

Operating Supply Current (Control Part Only)

(9)

V V

V

(9)

VCC=11V, VFB=1V

V

Startup Charging Current VCC=VFB=0V,V

Supply Voltage VCC=VFB=0V, V

=40V, VCC=11V,

DS

Sweep

FB

=11V, VFB=5V

CC

=11V, VFB=1V

CC

=11V, VFB=5.5V

CC

STR

=40V

Sweep

280 320 360 mA

4.2 4.7 5.2 V

4 5 6

3.5 4.5 5.5

360 ns

130 140 150

60

0.55 0.70 0.85 V

0.05 0.10 0.15 V

180 200 220 ns

0.8 1.0 mA

1.0 1.2 mA

27 V

μA

μs

μA

°C

FSQ510, FSQ510H, and FSQ510M — Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter

Comparison between FSD210B and FSQ510

Function FSD210B FSQ510 Advantages of FSQ510

Control Mode Voltage Mode Current Mode

Operation Method

EMI Reduction

Method

Constant Frequency

PWM

Frequency

Modulation

Valley Switching

Operation

Valley Switching

Soft-Start 3ms (Built-in) 5ms (Built-in) Longer Soft-Start Time

Protection TSD TSD with Hysteresis Enhanced Thermal Shutdown Protection

Power Balance Long T

Less than 5W

Power Ratings

Under Open-Frame

Condition at the

Universal Line Input

Short T

CLD

More than 6W

Under Open-Frame

Condition at the

Universal Line Input

CLD

Fast Response Easy-to-Design Control Loop

Turn-on at Minimum Drain Voltage High Efficiency and Low EMI

Frequency Variation Depending on the Ripple of DC Link Voltage High Efficiency and Low EMI

Small Difference of Input Power between the Low and High Input Voltage Cases

More Output Power Rating Available due to the Valley Switching

FSQ510, FSQ510H, and FSQ510M — Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter

Typical Performance Characteristics

Characteristic graphs are normalized at TA=25°C.

FSQ510, FSQ510H, and FSQ510M — Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter

1.20

1.15

1.10

1.05

1.00

0.95

Normalized

0.90

0.85

0.80

-40 -25 0 25 50 75 100 125

Temperature [℃]

Figure 4. Operating Frequency (f

1.20

1.15

1.10

1.05

1.00

0.95

Norm alized

0.90

0.85

0.80

-40 -25 0 25 50 75 100 125

Temperature [℃]

Figure 6. Start Threshold Voltage (V

) vs. TA Figure 5. Peak Current Limit (I

OSC

) vs. TA Figure 7. Stop Threshold Voltage (V

START

1.20

1.15

1.10

1.05

1.00

0.95

Normalized

0.90

0.85

0.80

-40 -25 0 25 50 75 100 125

Temperature [℃]

LIM

1.20

1.15

1.10

1.05

1.00

0.95

Norm alized

0.90

0.85

0.80

-40 -25 0 25 50 75 100 125

Temperature [℃]

) vs. TA

STOP

1.20

1.15

1.10

1.05

1.00

0.95

Norm alized

0.90

0.85

0.80

-40 -25 0 25 50 75 100 125

Temperature [℃]

Figure 8. Shutdown Feedback Voltage (VSD) vs. TA Figure 9. Maximum Duty Cycle (D

1.20

1.15

1.10

1.05

1.00

0.95

Normalized

0.90

0.85

0.80

-40 -25 0 25 50 75 100 125

Temperature [℃]

MAX

) vs. TA

Typical Performance Characteristics (Continued)

FSQ510, FSQ510H, and FSQ510M — Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter

1.20

1.15

1.10

1.05

1.00

0.95

Normalized

0.90

0.85

0.80

-40 -25 0 25 50 75 100 125

Temperature [℃]

1.20

1.15

1.10

1.05

1.00

0.95

Normalized

0.90

0.85

0.80

-40 -25 0 25 50 75 100 125

Temperature [℃]

Figure 10. Feedback Source Current (IFB) vs. TA Figure 11. Shutdown Delay Current (I

1.20

1.15

1.10

1.05

1.00

0.95

Norm alized

0.90

0.85

0.80

-40 -25 0 25 50 75 100 125

Temperature [℃]

Figure 12. Operating Supply Current (IOP) vs. TA

DELAY

) vs. TA

Functional Description

FSQ510, FSQ510H, and FSQ510M — Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter

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

source supplies the internal bias and charges the external capacitor (C illustrated in Figure 13. When V

) connected to the VCC pin, as

a

reaches 8.7V, the

CC

FPS begins switching and the internal high-voltage current source is disabled. The FPS continues normal switching operation and the power is supplied from the auxiliary transformer winding unless V

goes below the

CC

stop voltage of 6.7V.

V

DC

C

a

6.7V/

8.7V

V

CC

5

I

CH

VCC good

V

str

8

V

ref

Internal

Bias

Figure 13. Startup Block

2. Feedback Control: This device employs current-

mode control, as shown in Figure 14. 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 R

resistor makes it possible to

sense

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 the drain current. This typically occurs when the input voltage is increased or the output load is decreased.

2.1 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 (V

*), as shown in Figure 14. Assuming

FB

that the 225µA current source flows only through the internal resistor (6R + R=12.6kΩ), the cathode voltage of diode D2 is about 2.8V. Since D1 is blocked when the feedback voltage (V

) exceeds 2.8V, the maximum

FB

voltage of the cathode of D2 is clamped at this voltage, clamping V

*. Therefore, the peak value of the current

FB

through the SenseFET is limited.

2.2 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 R

sense

resistor would lead to incorrect feedback operation in the current mode VS-PWM control. To counter this effect, the FPS employs a leading-edge blanking (LEB) circuit to inhibit the VS-PWM comparator for a short time (t

V

FOD817

O

KA431

) after the SenseFET is turned on.

LEB

V

ref

I

delay

V

fb

3

D1 D 2

OB

V

SD

VS signal

I

FB

OSC

6R

+

*

V

R

fb

-

OLP

Gate

driver

SenseFET

R

sense

Figure 14. Valley Switching Pulse-Width

Modulation (VS-PWM) Circuit

3. Synchronization: The FSQ510 (H or M) employs a

valley-switching technique to minimize the switching noise and loss. The basic waveforms of the valley switching converter are shown in Figure 15. To minimize the MOSFET switching loss, the MOSFET should be turned on when the drain voltage reaches its minimum value, as shown in Figure 15. The minimum drain voltage is indirectly detected by monitoring the V

B

B winding voltage, as shown in Figure 15.

CC

V

DS

V

RO

V

Sync

MOSFET

Gate

ON

V

DC

0.7V

t

F

RO

0.1V

200ns Delay

ON

Figure 15. Valley Switching Waveforms

FSQ510, FSQ510H, and FSQ510M — Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter

4. Protection Circuits: The FSQ510 (H or M) has two

self-protective functions, overload protection (OLP) and thermal shutdown (TSD). The protections are implemented as auto-restart mode. Once the fault condition is detected, switching is terminated and the SenseFET remains off. This causes V V

B

B falls down to the under-voltage lockout (UVLO) stop

CC

to fall. When

CC

most applications. This protection is implemented in auto-restart mode.

V

FB

4.7V

Overload Protection

voltage of 6.7V, the protection is reset and the startup circuit charges the V

capacitor. When VCC reaches

CC

the start voltage of 8.7V, the FSQ510 (H or M) resumes normal operation. If the fault condition is not removed, the SenseFET remains off and V

drops to stop

CC

2.8V

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.

Fault

V

Power

ds

on

occurs

Fault

removed

t

1

Figure 17. Overload Protection

4.2 Thermal Shutdown (TSD): The SenseFET and the

t12= CB•(4.7-2.8)/I

delay

t

2

t

control IC on a die in one package make it easy for the control IC to detect the abnormal over temperature of the SenseFET. If the temperature exceeds approximately 140°C, the thermal shutdown triggers and the FPS stops operation. The FPS operates in auto-restart mode until the temperature decreases to

V

CC

8.7V

6.7V

around 80°C, when normal operation resumes.

5. Soft-Start: The FPS has an internal soft-start circuit

that increases the VS-PWM comparator inverting input voltage, together with the SenseFET current, slowly after it starts up. The typical soft-start time is 5ms. The pulse width to the power switching device is progressively increased to establish the correct working conditions for transformers, inductors, and capacitors.

t

Normal

operation

Fault

situation

Normal

operation

Figure 16. Auto Restart Protection Waveforms

4.1 Overload Protection (OLP): Overload is defined as

the load current exceeding its normal level due to an unexpected event. In this situation, the protection circuit should trigger to protect the SMPS. However, even when the SMPS is in the 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 (V

The voltage on the output capacitors is progressively increased with the intention of smoothly establishing the required output voltage. This helps prevent transformer saturation and reduces stress on the secondary diode during startup.

6. Burst-Mode Operation: To minimize power

dissipation in standby mode, the FPS enters burstmode operation. As the load decreases, the feedback voltage decreases. As shown in Figure 18, the device automatically enters burst mode when the feedback voltage drops below V

(750mV). At this point,

BURL

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 V (850mV), switching resumes. The feedback voltage then falls and the process repeats. Burst mode alternately enables and disables switching of the SenseFET, reducing switching loss in standby mode.

)

o

BURH

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 (V blocked and the 5µA current source starts to charge C slowly up

In this condition, VFB continues increasing

.

). If VFB exceeds 2.8V, D1 is

FB

B

until it reaches 4.7V, when the switching operation is terminated, as shown in Figure 17. The delay time for shutdown is the time required to charge C

from 2.8V to

B

4.7V with 5µA. A 20 ~ 50ms delay time is typical for

FSQ510, FSQ510H, and FSQ510M — Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter

Vo

set

Vo

V

FB

0.85V

0.75V

I

ds

V

ds

time

t

1

Switching

disabled

Switching

disabled

t3t

2

t

4

Figure 18. Burst-Mode Operation

7. Advanced Valley Switching Operation: To

minimize switching loss and Electromagnetic Interference (EMI), the MOSFET turns on when the drain voltage reaches its minimum value in VS converters. Due to the Discontinuous Conduction Mode (DCM) operation, the feedback voltage is not changed, despite the DC link voltage ripples, if the load condition is not changed. Since the slope of the drain current is changed depending on the DC link voltage, the turn-on duration of MOSFET is variable with the DC link voltage ripples. The switching period is changed continuously with the DC link voltage ripples. Not only the switching at the instant of the minimum drain voltage, but also the continuous change of the switching period, reduces EMI. V

converters inherently scatter the EMI spectrum.

S

Typical products for VSC turn the MOSFET on when the first valley is detected. In this case, the range of the switching frequency is very wide as a result of the load variations. At a very light-load, for example, the switching frequency can be as high as several hundred kHz. Some products for VSC, such as Fairchild’s FSCQ-series, define the turn-on instant of SenseFET change at the first valley into at the second valley, when the load condition decreases under its predetermined level. The range of switching frequency narrows somewhat. For details, consult an FSCQ-series datasheet, such as:

http://www.fairchildsemi.com/pf/FS/FSCQ1265RT.html

The range of the switching frequency can be limited tightly in FSQ-series. Because a kind of blanking time (t

) is adopted, as shown in Figure 19, the switching

B

frequency has minimum and maximum values.

Once the SenseFET is enabled, the next start is prohibited during the blanking time (t

). After the

B

blanking time, the controller finds the first valley within the duration of the valley detection window time (t (case A, B, and C). If no valley is found in t internal SenseFET is forced to turn on at the end of t

, the

W

)

W

B

W

(case D). Therefore, FSQ510, FSQ510H, and FSQ510M have minimum switching frequency of

94.3kHz and maximum switching frequency of 132kHz, typically, as shown in Figure 20.

max

T

=10.6µs

I

ds

s

I

DS

A

tB=7.6µs

T

s_A

I

DS

I

DS

B

tB=7.6µs

T

s_B

I

DS

I

DS

C

tB=7.6µs

T

s_C

tW=3µs

C

I

DS

D

Constant

frequency

D

P

o

I

DS

tB=7.6µs

max

T

=10.6µs

s

Figure 19. Advanced VS Operation

132kHz

104 kHz

94.3 kHz

When the resonant period is 2µs

A

Burst mode

B

Figure 20. Switching Frequency Range of the

Advanced Valley Switching

FSQ510, FSQ510H, and FSQ510M — Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter

Package Dimensions

Figure 21. 7-Lead, Dual In-line Package (DIP)

Package drawings are provided as a service to customers consi deri ng Fai rc hi l d components. Drawings may change in any manner without notice. Pl ease note the revision and/or date on the drawing and c ontact a Fairchild Semiconductor representat i ve 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 visi t Fai rchild Semiconductor’s online packaging area for the most recent package drawings:

http://www.fairchildsem i.com/p ackagi ng/

.

Package Dimensions (Continued)

9.83

9.00

FSQ510, FSQ510H, and FSQ510M — Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter

6.67

6.096

8.255

7.61

3.60

3.00

3.683

3.20

0.356

0.20

5.08 MAX

0.33 MIN

(0.56)

2.54

0.56

0.355

1.65

1.27

7.62

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 TOLERANC

ES PER

ASME Y14.5M-1994

E) DRAWING FILENAME AND REVSION: MKT-N08FREV2.

7.62

9.957

7.87

Figure 22. 8-Lead, Dual In-line Package (DIP)

Package drawings are provided as a service to customers consi deri ng Fai rc hi l d components. Drawings may change in any manner without notice. Pl ease note the revision and/or date on the drawing and c ontact a Fairchild Semiconductor representat i ve 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 visi t Fai rchild Semiconductor’s online packaging area for the most recent package drawings:

http://www.fairchildsem i.com/p ackagi ng/

.

Package Dimensions (Continued)

FSQ510, FSQ510H, and FSQ510M — Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter

MKT-MLSOP07ArevA

Figure 23. 7-Lead, MLSOP

Package drawings are provided as a service to customers consi deri ng Fai rc hi l d components. Drawings may change in any manner without notice. Pl ease note the revision and/or date on the drawing and c ontact a Fairchild Semiconductor representat i ve 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 visi t Fai rchild Semiconductor’s online packaging area for the most recent package drawings:

http://www.fairchildsem i.com/p ackagi ng/

.

FSQ510, FSQ510H, and FSQ510M — Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter

Datasheet FSQ510, FSQ510MX Specification

Specifications and Main Features

Frequently Asked Questions

User Manual