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July 2010

FAN7621 • Rev. 1.0.3

FAN7621 — PFM Controller for Half-Bridge Resonant Converters

FAN7621

PFM Controller for Half-Bridge Resonant Converters

Features

 Variable Frequency Control with 50% Duty Cycle

for Half-bridge Resonant Converter Topology

 High Efficiency through Zero Voltage Switching (ZVS)

 Fixed Dead Time (350ns)

 Up to 300kHz Operating Frequency

 Pulse Skipping for Frequency Limit (Programmable)

at Light-Load Condition

 Remote On/Off Control Using CON Pin

 Protection Functions: Over-Voltage Protection

(OVP), Overload Protection (OLP), Over-Current

Protection (OCP), Abnormal Over-Current Protection

(AOCP), Internal Thermal Shutdown (TSD)

Applications

 PDP and LCD TVs

 Desktop PCs and Servers

 Adapters

 Telecom Power Supplies

 Video Game Consoles

Description

The FAN7621 is a pulse frequency modulation controller

for high-efficiency half-bridge resonant converters.

Offering everything necessary to build a reliable and

robust resonant converter, the FAN7621 simplifies

designs and improves productivity, while improving

performance. The FAN7621 includes a high-side gate-

drive circuit, an accurate current controlled oscillator,

frequency limit circuit, soft-start, and built-in protection

functions. The high-side gate-drive circuit has a

common-mode noise cancellation capability, which

guarantees stable operation with excellent noise

immunity. Using the zero-voltage-switching (ZVS)

technique dramatically reduces the switching losses and

efficiency is significantly improved. The ZVS also

reduces the switching noise noticeably, which allows a

small-sized Electromagnetic Interference (EMI) filter.

The FAN7621 can be applied to various resonant

converter topologies; such as series resonant, parallel

resonant, and LLC resonant converters.

Related Resources

AN4151 — Half-bridge LLC Resonant Converter Design

using FSFR-series Fairchild Power Switch (FPSTM)

Ordering Information

Part Number Operating Junction

Temperature Package Packaging Method

FAN7621N

-40°C ~ 130°C

16-Lead, Dual Inline Package (DIP) Tube

FAN7621SJ 16-Lead, Small-Outline Package (SOP) Tube

FAN7621SJX 16-Lead, Small-Outline Package (SOP) Tape & Reel

FAN7621 • Rev. 1.0.3 2

FAN7621 — PFM Controller for Half-Bridge Resonant Converters

Application Circuit Diagram

Rsense

FAN7621

CDL

VCC

LVcc

CON

SG PG

CTR

HVCC

Llk

D2 RF

Np Ns

KA431

VIN

Figure 1. Typical Application Circuit (LLC Resonant Half-Bridge Converter)

Block Diagram

OLP

TSD

good

Low-Side

Gate Drive

High-Side

Gate Drive

11.3 / 14.5V

REF

Internal

Bias

good

CON

CTR

AOCP

OVP

Time

Delay

Time

Delay

OCP

-Q

<5V

Latch

Protection

-Q

Auto-restart

Protection

0.4 / 0.6 V

23 V

0.58 V

0.9 V

8.7 / 9.2V

good

CTC

1V -Q

F/F

Level-Shift

Balancing

Delay

Shutdown without delay

50ns Delay

-1

CTC

REF

CTC

350ns

Delay

1.5µs

Counter (1/4)

OLP

Figure 2. Internal Block Diagram

FAN7621 • Rev. 1.0.3 3

FAN7621 — PFM Controller for Half-Bridge Resonant Converters

Pin Configuration

(3) HO

(4) NC

PG (16)

FAN7621

NC (13)

NC (15)

(5) NC

(6) CON

(7) NC

LO (14)

(12)

CS (9)

NC (11)

SG (10)

(2) CTR

(1) HV

(8) R

Figure 3. Package Diagram

Pin Definitions

Pin # Name Description

1 HVCC This is the supply voltage of the high-side gate-drive circuit IC.

2 CTR This is the drain of the low-side MOSFET. Typically, a transformer is connected to this pin.

3 HO This is the high-side gate driving signal.

4 NC No connection.

5 NC No connection.

6 CON

This pin is for a protection and enabling/disabling the controller. When the voltage of this pin

is above 0.6V, the IC operation is enabled. When the voltage of this pin drops below 0.4V,

gate drive signals for both MOSFETs are disabled. When the voltage of this pin increases

above 5V, protection is triggered.

7 NC No connection.

8 RT This pin programs the switching frequency. Typically, an opto-coupler is connected to

control the switching frequency for the output voltage regulation.

9 CS

This pin senses the current flowing through the low-side MOSFET. Typically, negative

voltage is applied on this pin.

10 SG This pin is the control ground.

11 NC No connection.

12 LVCC This pin is the supply voltage of the control IC.

13 NC No connection.

14 LO This is the low-side gate driving signal.

15 NC No connection.

16 PG This pin is the power ground. This pin is connected to the source of the low-side MOSFET.

FAN7621 • Rev. 1.0.3 4

FAN7621 — PFM Controller for Half-Bridge Resonant Converters

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. TA=25°C unless otherwise specified.

Symbol Parameter Min. Max. Unit

VHO High-Side Gate Driving Voltage VCTR-0.3 HVCC V

VLO Low-Side Gate Driving Voltage -0.3 LVCC

LVCC Low-Side Supply Voltage -0.3 25.0 V

HVCC to VCTR High-Side VCC Pin to Center Voltage -0.3 25.0 V

VCTR Center Voltage -0.3 600.0 V

VCON Control Pin Input Voltage -0.3 LVCC V

VCS Current Sense (CS) Pin Input Voltage -5.0 1.0 V

VRT R

T Pin Input Voltage -0.3 5.0 V

dVCTR/dt Allowable Center Voltage Slew Rate 50 V/ns

PD Total Power Dissipation 16-DIP 1.56 W

16-SOP 1.13 W

TJ Maximum Junction Temperature(1) +150

°C

Recommended Operating Junction Temperature(1) -40 +130

TSTG Storage Temperature Range -55 +150 °C

Note:

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

Thermal Impedance

Symbol Parameter Value Unit

θJA Junction-to-Ambient Thermal Impedance 16-DIP 80

ºC/W

16-SOP 110

FAN7621 • Rev. 1.0.3 5

FAN7621 — PFM Controller for Half-Bridge Resonant Converters

Electrical Characteristics

TA=25°C and LVCC=17V unless otherwise specified.

Symbol Parameter Test Conditions Min. Typ. Max. Unit

Supply Section

ILK Offset Supply Leakage Current HVCC=VCTR 50 μA

IQHVCC Quiescent HVCC Supply Current (HVCCUV+) - 0.1V 50 120 μA

IQLVCC Quiescent LVCC Supply Current (LVCCUV+) - 0.1V 100 200 μA

IOHVCC Operating HVCC Supply Current

(RMS Value)

fOSC=100kHz, VCON > 0.6V,

CLoad=1nF 5 8 mA

No Switching, VCON < 0.4V 100 200 μA

IOLVCC Operating LVCC Supply Current

(RMS Value)

fOSC=100kHz, VCON > 0.6V,

CLoad=1nF 6 9 mA

No Switching, VCON < 0.4V 2 4 mA

UVLO Section

LVCCUV+ LVCC Supply Under-Voltage Positive Going Threshold (LVCC Start) 13.0 14.5 16.0 V

LVCCUV- LVCC Supply Under-Voltage Negative Going Threshold (LVCC Stop) 10.2 11.3 12.4 V

LVCCUVH LVCC Supply Under-Voltage Hysteresis 3.2 V

HVCCUV+ HVCC Supply Under-Voltage Positive Going Threshold (HVCC Start) 8.2 9.2 10.2 V

HVCCUV- HVCC Supply Under-Voltage Negative Going Threshold (HVCC Stop) 7.8 8.7 9.6 V

HVCCUVH HVCC Supply Under-Voltage Hysteresis 0.5 V

Oscillator & Feedback Section

VCONDIS Control Pin Disable Threshold Voltage 0.36 0.40 0.44 V

VCONEN Control Pin Enable Threshold Voltage 0.54 0.60 0.66 V

VRT V-I Converter Threshold Voltage

RT=5.2kΩ

1.5 2.0 2.5 V

fOSC Output Oscillation Frequency 94 100 106 kHz

DC Output Duty Cycle 48 50 52 %

fSS Internal Soft-Start Initial Frequency fSS=fOSC+40kHz, RT=5.2kΩ 140 kHz

tSS Internal Soft-Start Time 2 3 4 ms

Output Section

Isource Peak Sourcing Current HVCC=17V 250 360 mA

Isink Peak Sinking Current HVCC=17V 460 600 mA

tr Rising Time CLoad=1nF, HVCC=17V 65 ns

tf Falling Time 35 ns

VHOH High Level of High-Side Gate Driving

Signal (VHVCC-VHO)

IO=20mA

1.0 V

VHOL Low Level of High-Side Gate Driving

Signal 0.6 V

VLOH High Level of High-Side Gate Driving

Signal (VLVCC-VLO) 1.0 V

VLOL Low Level of High-Side Gate Driving

Signal 0.6 V

FAN7621 • Rev. 1.0.3 6

FAN7621 — PFM Controller for Half-Bridge Resonant Converters

Electrical Characteristics (Continued)

TA=25°C and LVCC=17V unless otherwise specified.

Symbol Parameter Test Conditions Min. Typ. Max. Unit

Protection Section

IOLP OLP Delay Current VCON=4V 3.8 5.0 6.2 μA

VOLP OLP Protection Voltage VCON > 3.5V 4.5 5.0 5.5 V

VOVP LVCC Over-Voltage Protection LVCC > 21V 21 23 25 V

VAOCP AOCP Threshold Voltage -1.0 -0.9 -0.8 V

tBAO AOCP Blanking Time 50 ns

VOCP OCP Threshold Voltage -0.64 -0.58 -0.52 V

tBO OCP Blanking Time(2) 1.0 1.5 2.0 μs

tDA Delay Time (Low-Side) Detecting from

VAOCP to Switch Off(2) 250 400 ns

TSD Thermal Shutdown Temperature(2) 110 130 150

°C

ISU Protection Latch Sustain LVCC Supply

Current LVCC=7.5V 100 150 μA

VPRSET Protection Latch Reset LVCC Supply

Voltage 5 V

Dead-Time Control Section

DT Dead Time 350 ns

Note:

2. These parameters, although guaranteed, are not tested in production.

FAN7621 • Rev. 1.0.3 7

FAN7621 — PFM Controller for Half-Bridge Resonant Converters

Typical Performance Characteristics

These characteristic graphs are normalized at TA=25ºC.

0.9

0.95

1.05

1.1

-50 -25 0 25 50 75 100

Temp (

Normalized at 25

Temp (OC)

0.9

0.95

1.05

1.1

-50 -25 0 25 50 75 100

Normalized at 25OC

Figure 4. Low-Side MOSFET Duty Cycle

vs. Temperature

Figure 5. Switching Frequency vs. Temperature

0.9

0.95

1.05

1.1

-50 -25 0 25 50 75 100

Temp (OC)

Normalized at 25OC

0.9

0.95

1.05

1.1

-50 -25 0 25 50 75 100

Temp (

Normalized at 25

Figure 6. High-Side VCC (HVCC) Start vs. Temperature Figure 7. High-Side VCC (HVCC) Stop vs. Temperature

0.9

0.95

1.05

1.1

-50 -25 0 25 50 75 100

Temp (

Normalized at 25

0.9

0.95

1.05

1.1

-50 -25 0 25 50 75 100

Temp (

Normalized at 25

Figure 8. Low-Side VCC (LVCC) Start vs. Temperature Figure 9. Low-Side VCC (LVCC) Stop vs. Temperature

FAN7621 • Rev. 1.0.3 8

FAN7621 — PFM Controller for Half-Bridge Resonant Converters

Typical Performance Characteristics (Continued)

These characteristic graphs are normalized at TA=25ºC.

0.9

0.95

1.05

1.1

-50 -25 0 25 50 75 100

Temp (

Normalized at 25

0.9

0.95

1.05

1.1

-50 -25 0 25 50 75 100

Temp (

Normalized at 25

Figure 10. OLP Delay Current vs. Temperature Figure 11. OLP Protection Voltage vs. Temperature

0.9

0.95

1.05

1.1

-50 -25 0 25 50 75 100

Temp (

Normalized at 25

0.9

0.95

1.05

1.1

-50 -25 0 25 50 75 100

Temp (

Normalized at 25

Figure 12. LVCC OVP Voltage vs. Temperature Figure 13. RT Voltage vs. Temperature

0.9

0.95

1.05

1.1

-50 -25 0 25 50 75 100

Temp (

Normalized at 25

0.9

0.95

1.05

1.1

-50 -25 0 25 50 75 100

Temp (

Normalized at 25

Figure 14. CON Pin Enable Voltage vs. Temperature Figure 15. OCP Voltage vs. Temperature

FAN7621 • Rev. 1.0.3 9

FAN7621 — PFM Controller for Half-Bridge Resonant Converters

Functional Description

1. Basic Operation

FAN7621 is designed to drive high-side and low-side

MOSFETs complementarily with 50% duty cycle. A fixed

dead time of 350ns is introduced between consecutive

transitions, as shown in Figure 16.

High-side

MOSFET

gate drive

Low-side

MOSFET

gate drve

Dead t im e

time

Figure 16. MOSFETs Gate Drive Signal

2. Internal Oscillator

FAN7621 employs a current-controlled oscillator, as

shown in Figure 17. Internally, the voltage of RT pin is

regulated at 2V and the charging / discharging current

for the oscillator capacitor, CT, is obtained by copying the

current flowing out of RT pin (ICTC) using a current mirror.

Therefore, the switching frequency increases as ICTC

increases.

Figure 17. Current Controlled Oscillator

3. Frequency Setting

Figure 18 shows the typical voltage gain curve of a

resonant converter, where the gain is inversely

proportional to the switching frequency in the ZVS

region. The output voltage can be regulated by

modulating the switching frequency. Figure 19 shows the

typical circuit configuration for RT pin, where the opto-

coupler transistor is connected to the RT pin to modulate

the switching frequency.

0.6

0.8

1.0

1.2

1.4

1.6

1.8

Gain

140 150

60 70 80 90 100 110 120 130

Frequency (kHz)

fmin fnormal fmax fISS

Soft-start

Figure 18. Resonant Converter Typical Gain Curve

sense

FAN7621

LVCC

CON

SG PG

CTR

HVCC

max

min

Figure 19. Frequency Control Circuit

The minimum switching frequency is determined as:

min

5.2 100( )

kHz

=× (1)

Assuming the saturation voltage of opto-coupler

transistor is 0.2V, the maximum switching frequency is

determined as:

max

min max

5.2 4.68

( ) 100( )

fkHz

=+ × (2)

To prevent excessive inrush current and overshoot of

output voltage during startup, increase the voltage gain

of the resonant converter progressively. Since the

voltage gain of the resonant converter is inversely

proportional to the switching frequency, the soft-start is

CTC +

1V -Q

F/F

2ICTC

VREF

ICTC

-Counte

(1/4)

8Gate d

ive

FAN7621 • Rev. 1.0.3 10

FAN7621 — PFM Controller for Half-Bridge Resonant Converters

implemented by sweeping down the switching frequency

from an initial high frequency (fISS) until the output

voltage is established. The soft-start circuit is made by

connecting R-C series network on the RT pin, as shown

in Figure 19. FAN7621 also has an internal soft-start for

3ms to reduce the current overshoot during the initial

cycles, which adds 40kHz to the initial frequency of the

external soft-start circuit, as shown in Figure 20. The

initial frequency of the soft-start is given as:

min

5.2 5.2

( ) 100 40 ( )

ISS

kHz

ΩΩ

=+×+ (3)

It is typical to set the initial (soft-start) frequency of two ~

three times the resonant frequency (fO) of the resonant

network.

The soft-start time is three to four times the RC time

constant. The RC time constant is as follows:

SS SS SS

TRC=⋅ (4)

time

Control loop

take over

40kHz

ISS

Figure 20. Frequency Sweeping of Soft-Start

4. Control Pin

The FAN7621 has a control pin for protection, cycle

skipping, and remote on/off. Figure 21 shows the internal

block diagram for control pin.

OLP

good

CON

LVCC

OVP

-Q

Auto-restart

protection

0.4 / 0.6V

23V

LVCC

OLP

Stop Switching

Figure 21. Internal Block of Control Pin

Protection: When the control pin voltage exceeds 5V,

protection is triggered. Detailed applications are

described in the protection section.

Pulse Skipping: FAN7621 stops switching when the

control pin voltage drops below 0.4V and resumes

switching when the control pin voltage rises above 0.6V.

To use pulse-skipping, the control pin should be

connected to the opto-coupler collector pin. The

frequency that causes pulse skipping is given as:

()

kHz100x

Rk16.4

Rk2.5

maxmin

SKIP

(5)

FAN7621

CON

SG PG

CTR

max

min

Figure 22. Control Pin Configuration for

Pulse Skipping

Remote On / Off: When an auxiliary power supply is

used for standby, the main power stage using FAN7621

can be shut down by pulling down the control pin

voltage, as shown in Figure 23. R1 and C1 are used to

ensure soft-start when switching resumes.

OP1

min

FAN7621

Main

Output

Main Off

Aux

Output

OP1

CON

Figure 23. Remote On / Off Circuit

5. Protection Circuits

The FAN7621 has several self-protective functions, such

as Overload Protection (OLP), Over-Current Protection

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

Over-Voltage Protection (OVP), and Thermal Shutdown

(TSD). OLP, OCP, and OVP are auto-restart mode

protections; while AOCP and TSD are latch-mode

protections, as shown in Figure 24.

5.1 Auto-Restart Mode Protection: Once a fault

condition is detected, switching is terminated and the

MOSFETs remain off. When LVCC falls to the LVCC stop

voltage of 11.3V, the protection is reset. FAN7621

FAN7621 • Rev. 1.0.3 11

FAN7621 — PFM Controller for Half-Bridge Resonant Converters

resumes normal operation when LVCC reaches the start

voltage of 14.5V.

5.2 Latch-Mode Protection: Once this protection is

triggered, switching is terminated and the gate output

signals remain off. The latch is reset only when LVCC is

discharged below 5V.

Figure 24. Protection Blocks

5.3 Current Sensing Using Resistor: FAN7621

senses drain current as a negative voltage, as shown in

Figure 25 and Figure 26. Half-wave sensing allows low

power dissipation in the sensing resistor, while full-wave

sensing has less switching noise in the sensing signal.

sense

FAN7621

CON

SG PG

CTR

Figure 25. Half-Wave Sensing

sense

FA N7621

CON

SG PG

CTR

Figure 26. Full-Wave Sensing

5.4 Current Sensing Using Resonant Capacitor

Voltage: For high-power applications, current sensing

using a resistor may not be available due to the severe

power dissipation in the resistor. In that case, indirect

current sensing using the resonant capacitor voltage can

be a good alternative because the amplitude of the

resonant capacitor voltage (Vcrp-p) is proportional to the

resonant current in the primary side (Ipp-p) as:

−

−= (6)

To minimize power dissipation, a capacitive voltage

divider is generally used for capacitor voltage sensing,

as shown in Figure 27.

sense

p-p

sense

Delay

sense B

Cr sense B

VCC

−

=+2

sense

CON

VV=

CON

sense

FAN7621

CON

SG PG

CTR

sense

100

Figure 27. Current Sensing Using Resonant

Capacitor Voltage

5.5 Over-Current Protection (OCP): When the

sensing pin voltage drops below -0.6V, OCP is triggered

and the MOSFETs remain off. This protection has a

shutdown time delay of 1.5µs to prevent premature

shutdown during startup.

5.6 Abnormal Over-Current Protection (AOCP): If

the secondary rectifier diodes are shorted, large current

with extremely high di/dt can flow through the MOSFET

before OCP or OLP is triggered. AOCP is triggered

without shutdown delay when the sensing pin voltage

drops below -0.9V. This protection is latch mode and

reset when LVCC is pulled down below 5V.

LVCC good

11 / 14 V

VRE FIn

ernal

Bias

LVCC good

LV CC

OLP

OVP

-Q

F/F

LVCC <5V

La tch

prote

tion

-Q

F/F

uto-

art

protection

Shutdo

CON 20k

OCP

TSD

FAN7621 • Rev. 1.0.3 12

FAN7621 — PFM Controller for Half-Bridge Resonant Converters

5.7 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 power

supply. However, even when the power supply is in the

normal condition, the overload situation can occur during

the load transition. To avoid premature triggering of

protection, the overload protection circuit should be

designed to trigger only after a specified time to

determine whether it is a transient situation or a true

overload situation. Figure 27 shows a typical overload

protection circuit. By sensing the resonant capacitor

voltage on the control pin, the overload protection can be

implemented. Using RC time constant, shutdown delay

can be also introduced. The voltage obtained on the

control pin is given as:

2( )

CON Cr

Bsense

CC −

(7)

where VCrp-p is the amplitude of the resonant capacitor

voltage.

5.8 Over-Voltage Protection (OVP): When the

LVCC reaches 23V, OVP is triggered. This protection is

used when auxiliary winding of the transformer to supply

VCC to the controller is utilized.

5.9 Thermal Shutdown (TSD): If the temperature

of the junction exceeds approximately 130°C, the

thermal shutdown triggers.

6. PCB Layout Guideline

Duty imbalance problems may occur due to the radiated

noise from main transformer, the inequality of the

secondary-side leakage inductances of main

transformer, and so on. Among them, it is one of the

dominant reasons that the control components in the

vicinity of RT pin are enclosed by the primary current flow

pattern on PCB layout. The direction of the magnetic

field on the components caused by the primary current

flow is changed when the high-and-low side MOSFET

turns on by turns. The magnetic fields with opposite

direction from each other induce a current through, into,

or out of the RT pin, which makes the turn-on duration of

each MOSFET different. It is strongly recommended to

separate the control components in the vicinity of RT pin

from the primary current flow pattern on PCB layout.

Figure 28 shows an example for the duty-balanced case.

The yellow and blue lines show the primary current flows

when the lower-side and higher-side MOSFETs turns on,

respectively. The primary current does not enclose any

component of controller.

It is helpful to reduce the duty imbalance to make the

loop configured between CON pin and opto-coupler as

small as possible, as shown in the red line in Figure 28.

Figure 28. Example for Duty Balancing

FAN7621 • Rev. 1.0.3 13

FAN7621 — PFM Controller for Half-Bridge Resonant Converters

Typical Application Circuit (Half-Bridge LLC Resonant Converter)

Application Device Input Voltage Range Rated Output Power Output Voltage

(Rated Current)

LCD TV FAN7621 390VDC

(340~400VDC) 200W 24V-8.3A

Features

 High efficiency ( >94% at 400VDC input)

 Reduced EMI noise through zero-voltage-switching (ZVS)

 Enhanced system reliability with various protection functions

FAN7621

Figure 29. Typical Application Circuit

FAN7621 • Rev. 1.0.3 14

FAN7621 — PFM Controller for Half-Bridge Resonant Converters

Typical Application Circuit (Continued)

Usually, LLC resonant converters require large leakage inductance value. To obtain a large leakage inductance,

sectional winding method is used.

 Core: EC35 (Ae=106 mm2)

 Bobbin: EC35 (Horizontal)

 Transformer Model Number: SNX-2468-1

EC35

Ns2

Ns1

Figure 30. Transformer Construction

Pins (S → F) Wire Turns Note

Np 6 → 2 0.08φ×88 (Litz Wire) 36

Ns1 12 → 9 0.08φ×234 (Litz Wire) 4 Bifilar Winding

Ns2 10 → 13 0.08φ×234 (Litz Wire) 4 Bifilar Winding

Pins Specifications Remark

Primary-Side Inductance (Lp) 2－6 550μH ± 10% 100kHz, 1V

Primary-Side Effective Leakage (Lr) 2－6 110μH ± 10% Short one of the secondary windings

For more detailed information regarding the transformer, visit http://www.santronics-usa.com/documents.html or

contact sales@santronics-usa.com or +1-408-734-1878 (Sunnyvale, California USA).

PIN #1 IDENT.

A. CONFORMS TO EIAJ EDR-7320

REGISTRATION, ESTABLISHED IN

B. DIMENSIONS ARE IN MILLIMETERS.

C. DIMENSIONS ARE EXCLUSIVE OF BURRS,

MOLD FLASH, AND TIE BAR EXTRUSIONS.

10.30

10.10

5.40

5.20

1.90

1.70

0.51

0.35

1.27 TYP

9.27 TYP

5.01 TYP

1.27

TYP

NOTES:

0.60 TYP

SEE DETAIL A

GAGE PLANE

0.25

SEATING PLANE

0-8° TYP

MIN

0.25 1.25

3.9

7.8

0.47 TYP

2.1 MAX

(2.13 TYP)

0.25

0.15

7° TYP

D. DRAWING FILENAME: MKT-M16Drev5

ALL LEAD TIPS

0.16

0.14

DECEMBER, 1998.

0.2 C B A

0.1 C

0.12 C A

-A-

-B-

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