MAX8533EUB-T - Maxim Integrated Products, Inc.

General Description

The MAX8533 is a single-port, 12V, InfinibandTM-compli-

ant (IB) versatile hot-swap controller. The device can be

implemented in both IB Class I (nonisolated) and Class II

(isolated) power-topology applications. Additionally, the

MAX8533 can be used as a reliable power controller on

hot-swappable blade servers, RAID cards, and network

switches or routers that are powered from a 12V bus.

The MAX8533 integrates several features that allow reli-

able insertion and removal of the circuit card, as well as

real-time monitoring of abnormal occurrences. The

MAX8533 allows for an adjustable soft-start ramp during

turn-on of the input voltage, while providing overcurrent

protection. It also provides accurate and consistent cur-

rent-regulated outputs for a programmable period of time

to latch off and soft-start in the presence of overcurrent

conditions (OC). Additionally, it provides a second level

of severe overcurrent (SOC) protection by responding to

a dead short in 100ns. The MAX8533 also includes

adjustable overvoltage protection.

The MAX8533 incorporates undervoltage lockout

(UVLO) and a power-good (POK) signal to the DC-to-

DC converters to confirm the status of output voltage

rails during operation. Two enable inputs EN (logic

enable) and LPEN (local power enable) provide flexible

sequencing. The MAX8533 is specified across the

extended temperature range and has an absolute maxi-

mum rating of 16V to withstand inductive kickback dur-

ing board removal.

The MAX8533 is available in the space-saving 10-pin

µMAX package.

Applications

12V Hot-Swap

Infiniband Bulk Power

Hot-Swap/Plug/Dock Power Management

Blade Servers

RAID

Network Routers and Switches

Features

♦12V Hot-Swap Controller for 25W or 50W

Infiniband Ports

♦Programmable Overcurrent Protection Regulation

Level

♦EN and LPEN Inputs for Flexible Sequencing

♦Power-Good Signal

♦16V Absolute Maximum Rating Withstands

Inductive Kickbacks

♦Soft-Start Overcurrent Protection During Turn-On

♦Timed Current Regulation Period (Adjustable)

♦100ns IC Response Time to Output Dead Short

♦Adjustable Overvoltage Protection

♦Undervoltage Lockout

♦Adjustable Turn-On Ramp

MAX8533

Smallest, Most Reliable, 12V, Infiniband-

Compliant Hot-Swap Controller

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

19-2849; Rev 0; 4/03

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Pin Configuration appears at end of data sheet.

Infiniband is a trademark of InfinibandSM Trade Association.

PART TEMP RANGE PIN-PACKAGE

MAX8533EUB -40°C to +85°C 10 µMAX

MAX8533

VB_IN

BACKPLANE

10V TO 14V

INFINIBAND

MODULE

ISET GATE OUT

VB_OUT

VIN

OVP

POKRET

VB_RET

CTIM

LPEN

VBxEN

Typical Operating Circuit

MAX8533

Smallest, Most Reliable, 12V, Infiniband-

Compliant Hot-Swap Controller

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VIN = +12V, VEN = 0, TA= 0°°C to +85°°C, unless otherwise noted. Typical values are at TA= +25°C.)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

IN, POK to RET .......................................................-0.3V to +16V

GATE to RET...................................................-0.3V to (VIN + 7V)

OUT, ISET, CTIM to RET..............................-0.3V to (VIN + 0.3V)

EN, LPEN, OVP to RET .............................................-0.3V to +6V

Continuous Power Dissipation (TA= +70°C)

10-Pin µMax (derate 5.6 mW/°C above +70°C).......444.4 mW

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER CONDITIONS MIN TYP MAX UNITS

VB BULK SUPPLY CONTROL

IN Supply Voltage Range 10 12 14 V

ISET Current Source 18.5 20 21.5 µA

Current-Limit Offset Voltage VISET - VIN -4 0 +4 mV

OUT Input Current VOUT = 12V 6 12 µA

Severe Overcurrent Threshold With respect to current regulation threshold 150 mV

25W OUT Current Regulation RISET = 3.09kΩ ±1%, RSENSE = 20mΩ ±1% 2.6 3.1 3.6 A

50W OUT Current Regulation RISET = 3.09kΩ ±1%, RSENSE = 10mΩ ±1% 5.2 6.2 7.2 A

GATE PARAMETERS

Gate Response Time to Severe

Overcurrent

VRSENSE ≥ (150mV + current regulation threshold +

50mV) until VGATE begins to slew low (Note 1) 100 ns

Gate Response Time to

Overcurrent

VRSENSE ≥ current regulation threshold + 50mV until

VGATE begins to slew low (Note 1) 600 ns

Gate Turn-On Current 8.4 10 11.6 µA

Overcurrent, VRSENSE ≥ (current regulation threshold +

100mV) (Note 1) 2.7

Gate Pulldown Current

Severe overcurrent 350

Gate High Voltage VIN + 4 VIN + 5 V

IN PARAMETERS

Quiescent Supply Current 1.5 3 mA

IN UVLO Threshold Hysteresis = 300mV 7.5 8.4 9.0 V

POK Undervoltage Threshold Measured at OUT, rising edge, hysteresis = 300mV 9.2 9.6 10.0 V

POK Delay VPOK rising 100 220 350 µs

POK Output Voltage VOUT < 9.2V, IPOK = 1.6mA 0.1 0.25 V

POK Leakage Current VOUT > 10V, VPOK = 14V 0.1 1 µA

EN Rising Threshold Hysteresis = 120mV 1.3 1.65 2.0 V

EN Pullup Voltage EN unconnected 4.5 5.5 V

EN Pullup Current 12 20 28 µA

MAX8533

Smallest, Most Reliable, 12V, Infiniband-

Compliant Hot-Swap Controller

_______________________________________________________________________________________ 3

PARAMETER CONDITIONS MIN TYP MAX UNITS

LPEN Rising Threshold Hysteresis = 120mV 1.3 1.65 2.0 V

LPEN Pullup Voltage LPEN unconnected 4.5 5.5 V

LPEN Pullup Current 12 20 28 µA

OVP Threshold Voltage Hysteresis = 10mV, VOVP rising 1.96 2.00 2.04 V

OVP Fault Timeout 1.5 ms

CTIM PARAMETERS

CTIM Charging Current VCTIM < 1.5V 16 20 24 µA

CTIM Fault Pullup Current VCTIM = 6V 6 8 12 mA

Current-Limit Timeout Threshold

Voltage 1.5 1.8 2.1 V

ELECTRICAL CHARACTERISTICS (continued)

(VIN = +12V, VEN = 0, TA= 0°°C to +85°°C, unless otherwise noted. Typical values are at TA= +25°C.)

PARAMETER CONDITIONS MIN TYP MAX UNITS

VB BULK SUPPLY CONTROL

IN Supply Voltage Range 10 14 V

ISET Current Source Current regulation threshold = ISET x RISET 18 22 µA

Current-Limit Offset Voltage VISET - VIN -4 +4 mV

OUT Input Current VOUT = 12V 12 µA

25W OUT Current Regulation RISET = 3.09kΩ ±1%, RSENSE = 20mΩ ±1% 2.5 3.7 A

50W OUT Current Regulation RISET = 3.09kΩ ±1%, RSENSE = 10mΩ ±1% 5.0 7.4 A

GATE PARAMETERS

Gate Turn-On Current 812µA

Gate High Voltage VIN + 4 V

IN PARAMETERS

Quiescent Supply Current 3mA

IN UVLO Threshold Hysteresis = 300mV 7.5 9.0 V

POK Undervoltage Threshold Measured at OUT, rising edge, hysteresis = 300mV 9.0 10.2 V

POK Delay VPOK rising 100 350 µs

POK Output Voltage VOUT < 9.2V, IPOK = 1.6mA 0.25 V

POK Leakage Current VOUT > 10V, VPOK = 14V 1 µA

EN Rising Threshold Hysteresis = 120mV 1.3 2.0 V

EN Pullup Voltage EN unconnected 4.5 V

EN Pullup Current 12 28 µA

ELECTRICAL CHARACTERISTICS

(VIN = +12V, VEN = 0, TA= -40°°C to +85°°C, unless otherwise noted.) (Note 2)

HOT PLUG WITH 10V INPUT

INTO 50W LOAD

MAX8533 toc01

VIN

IIN

VOUT

VPOK 10V/div

10V/div

20ms/div

5A/div

10V/div

HOT PLUG WITH 14V INPUT

INTO 65W LOAD

MAX8533 toc02

VIN

IIN

VOUT

VPOK

10V/div

20ms/div

5A/div

10V/div

HOT PLUG INTO SHORT CIRCUIT

MAX8533 toc03

VIN

IIN

VOUT

VPOK

20ms/div

5A/div

10V/div

Typical Operating Characteristics

(TA = +25°C, unless otherwise noted.)

ON/OFF CONTROL WITH EN TOGGLED

MAX8533 toc04

VEN

IIN

VOUT

VPOK

10V/div

200ms/div

5A/div

10V/div

ON/OFF CONTROL WITH LPEN TOGGLED

MAX8533 toc05

VLPEN

IIN

VOUT

VPOK

10V/div

200ms/div

5A/div

5V/div

10V/div

MAX8533

Smallest, Most Reliable, 12V, Infiniband-

Compliant Hot-Swap Controller

4 _______________________________________________________________________________________

PARAMETER CONDITIONS MIN TYP MAX UNITS

LPEN Rising Threshold Hysteresis = 120mV 1.3 2.0 V

LPEN Pullup Voltage LPEN unconnected 4.5 V

LPEN Pullup Current 12 28 µA

OVP Threshold Voltage Hysteresis = 10mV, VOVP rising 1.96 2.04 V

CTIM PARAMETERS

CTIM Charging Current VCTIM < 1.5V 15 25 µA

CTIM Fault Pullup Current VCTIM = 6V 6 12 mA

Current-Limit Timeout Threshold

Voltage 1.4 2.2 V

ELECTRICAL CHARACTERISTICS (continued)

(VIN = +12V, VEN = 0, TA= -40°°C to +85°°C, unless otherwise noted.) (Note 2)

Note 1: The current regulation threshold is set by R3 (Figure 2). It is equal to 20µA x R3.

Note 2: Specifications to -40°C are guaranteed by design and not production tested.

MAX8533

Smallest, Most Reliable, 12V, Infiniband-

Compliant Hot-Swap Controller

_______________________________________________________________________________________ 5

INPUT OVERVOLTAGE PROTECTION

FAULT CONDITION

MAX8533 toc07

IIN

VOUT

VGATE 10V/div

2ms/div

10V/div

5V/div

SHORT-CIRCUIT CURRENT PROTECTION

MAX8533 toc08

IIN

VOUT

VGATE

12V

10µs/div

10V/div

2A/div

VIN

10V/div

OUTPUT-VOLTAGE RISE TIME AS

A FUNCTION OF GATE CAPACITOR (C2)

MAX8533 toc09

VOUT 0V

40ms/div

5V/div

0.022µF

0.047µF0.1µF0.22µF0.47µF

INPUT-CURRENT RISE TIME AS

A FUNCTION OF GATE CAPACITOR (C2)

MAX8533 toc10

IIN 0A

40ms/div

2A/div

0.022µF

0.047µF0.1µF0.22µF0.47µF

HOT UNPLUG

MAX8533 toc11

IIN

VOUT

VIN

10V/div

4ms/div

10V/div

2A/div

HOT PLUG INTO

INPUT OVERVOLTAGE CONDITION

MAX8533 toc06

VIN

VOUT

VGATE 10V/div

40ms/div

10V/div

Typical Operating Characteristics (continued)

(TA = +25°C, unless otherwise noted.)

MAX8533

Smallest, Most Reliable, 12V, Infiniband-

Compliant Hot-Swap Controller

6 _______________________________________________________________________________________

Pin Description

PIN NAME FUNCTION

1 ISET Current-Limit Threshold Programming Input. Connect to the low side of the current-limit threshold

programming resistor.

2 IN Bulk Power Supply. Connect to the input power supply and positive terminal of the current-sense resistor.

3 GATE

External MOSFET-Gate-Drive Output. Connect to the gate of the external N-channel MOSFET. A series

resistor and capacitor connected from GATE to RET sets the turn-on ramp rate. At turn-on, this capacitor is

charged to VIN + 5V (typ) by an internal current source. GATE is pulled to RET when EN is high and/or LPEN

is low. GATE is pulled to RET during a fault condition.

4 CTIM

Current Regulation Time Programming Input. Connect a capacitor from CTIM to RET. The capacitance at

CTIM determines the time delay between an overcurrent event and chip output shutdown (current-limit

timeout). CTIM is pulled low, resetting the fault latch when either EN is high or LPEN is low.

5 RET Bulk Power Ground

6 OVP Overvoltage Protection Input. Connect to common point of a resistor-divider from OUT to RET. GATE pulls

low when VOVP exceeds the 2V threshold for at least 1.5ms and the IC is latched off.

7 OUT Output Voltage. Connect to the output of the circuit.

8POK

P ow er - Good Outp ut. P O K i s an op en- d r ai n outp ut that b ecom es hi g h i m p ed ance w hen V

OU T

r eaches 9.6V . P ul l

P OK up to the sup p l y r ai l usi ng an exter nal p ul l up r esi stor . P OK i s p ul l ed to RE T unti l the M AX 8533 i s enab l ed .

9 LPEN Local Power-Enable Input. LPEN is a positive-assertion enable input to turn on the IC. Pull LPEN low to

disable the output. LPEN has an internal pullup to 5V.

10 EN Chip-Enable Input. EN is an active-low input that enables the IC.

Detailed Description

The MAX8533 is a single-port, 12V, IB-compliant versa-

tile hot-swap controller IC designed for applications

where a line card is inserted into a live backplane. The

MAX8533 can be implemented in both IB Class I (non-

isolated) and Class II (isolated) power-topology appli-

cations. Normally, when a line card is plugged into a

live backplane, the low impedance of the card’s dis-

charged filter capacitors can momentarily collapse the

input supply voltage. The MAX8533 is designed to

reside on the line card and to provide inrush current-

limiting and short-circuit protection. This is achieved

using an external N-channel MOSFET, current-sense

resistor, and current-limit set resistor, along with two

on-chip comparators (Figure 1).

UVLO and Startup

The MAX8533 has an undervoltage lockout protection

circuit. The circuit is disabled when VIN is below 8.4V

(typ). The gate of the MOSFET, CTIM, LPEN, and POK is

pulled to RET until VIN exceeds the UVLO threshold.

Once VIN exceeds the UVLO threshold and LPEN and

EN are enabled, the capacitor on the gate of the exter-

nal MOSFET is charged and the MOSFET turns on. The

charging of this capacitor provides soft-start to prevent

high inrush currents.

On/Off Control

The MAX8533 is enabled/disabled using LPEN and EN.

Drive EN low and LPEN high to enable the device. LPEN

can also be left unconnected as it is internally connected

to 5V. Drive LPEN low or EN high to disable the output.

Table 1 is the truth table for these inputs.

EN LPEN OUTPUT

0 0 OFF

01ON

1 0 OFF

1 1 OFF

Table 1. Truth Table

Zero is a logic-low input, 1 is a logic-high input or unconnected

input.

Startup Into Load

The MAX8533 is intended to be used in a circuit where

no load is applied until the POK signal is enabled. In an

application where the load is applied during the output-

voltage ramp up, the RDS(ON) of the MOSFET is higher

and the power dissipated by the MOSFET is larger.

Repeated, rapid hot-swaps into a load can create suffi-

cient heat to exceed the power-dissipation limits of the

package causing failure of the MOSFET.

Applications Information

Setting the Turn-On Ramp Rate

The MOSFET turn-on ramp rate is determined by the

capacitor (C2) at GATE (Figure 2). An internal 10µA

current source charges C2 to bring GATE high. The

soft-start rate is determined as follows:

tSS = C2 x (VIN + 5)/(10 x 10-6)

tSS may be longer than expected in the application

depending on the gate capacitance of the external

MOSFET. The necessary gate voltage is provided by

an on-board charge pump that boosts the voltage at

GATE to (VIN + 5V).

External Power MOSFET Selection

Select the N-channel MOSFET according to the appli-

cation’s current requirements. Table 2 lists some rec-

ommended components. The MOSFET’s on-resistance

(RDS(ON)) should be chosen low enough to have a min-

imal voltage drop at full load to limit the MOSFET power

dissipation. High RDS(ON) can cause high output ripple

if the board has pulsing loads, or trigger an external

MAX8533

Smallest, Most Reliable, 12V, Infiniband-

Compliant Hot-Swap Controller

_______________________________________________________________________________________ 7

MAX8533

VIN

BACKPLANE

10V TO 14V

10mΩ

3.09kΩ

20Ω

31.6kΩ

4.99kΩR6

100kΩ

470µF

0.1µF

0.01µF

100µF10µF

INFINIBAND

MODULE

ISET GATE OUT

VVB_OUT

VIN

OVP

POKRET

VB_RET

CTIM

LPEN

VBxEN

POK

0.22µF

Figure 2. Typical 50W Applications Circuit

MAX8533

IREG

CURRENT-REGULATION

CONTROL LOGIC

CHARGE

PUMP

OVERCURRENT

COMPARATOR

OVP

COMPARATOR

POK

COMPARATOR

SEVERE

OVERCURRENT

COMPARATOR

UVLO

COMPARATOR

CURRENT-

REGULATION

TIMER

RET

LPEN

POK

OUT

CTIM

20µA

7.5kΩ

I0µA

20µA

CLAMP

BIAS

REFERENCE

(REF)

5V LINEAR

REGULATOR

IN GATE ISET

OVP

Figure 1. MAX8533 Functional Diagram

MAX8533

undervoltage reset monitor at full load. The maximum

gate voltage (VGS) rating must be at least ±20V. Low

MOSFET gate capacitance is not necessary for the

inrush current limiting because it is achieved by limiting

the GATE dV/dt. However, higher gate capacitance

increases the turn-off time of the MOSFET under fault

conditions.

Current-Limit and Overload Protection

The MAX8533 features a dual overcurrent protection

circuit that turns off the MOSFET in overcurrent situa-

tions. When an overload event is sensed, the IC limits

the current to a level set by ISET. Continuous overload

for a period set by the user (tCTIM) latches off the

MOSFET. The severe overcurrent protection immediate-

ly shuts down the external MOSFET and latches it off.

R3 sets the current-limit threshold voltage. This voltage

is generated from an internal 20µA source driven

through R3. Therefore:

VILIM = R3 x 20µA

The current-sense signal is sensed across resistor R1.

With no load, the voltage at ISET is the input voltage

plus VILIM. As the load current increases, the voltage

drop across R1 increases and reduces the voltage at

ISET. Once VISET is lower than VIN, the overcurrent

comparator (Figure 1) is tripped and the MAX8533

enters current regulation mode. During current regula-

tion mode, the gate voltage of the MOSFET is

decreased to limit the current to the output. The maxi-

mum time period for the current regulation mode is set

by the external capacitor at CTIM (C3). This feature

allows transient currents that exceed the current limit to

pass without shutting down the circuit. The current regu-

lation time period is determined as:

tIREG = C3 x (1.8V/20µA)

If tIREG expires and the overcurrent condition still

exists, the MOSFET is latched off.

The severe overcurrent comparator (Figure 1) trips if

the drop across the current-sense resistor (R1) is

150mV higher than the current-limit threshold (VIN

exceeds VISET by 150mV). During a severe overcurrent

event, the gate of the external MOSFET is pulled down

with a 350mA current source and latched immediately.

Toggle EN, LPEN, or input power to clear the latched

fault condition.

Overvoltage Protection

The MAX8533 has an adjustable overvoltage protection

feature that latches the IC off in case of an overvoltage

event. An external resistor-divider (R4 and R5, Figure 2)

from OUT to RET with OVP connected to the center,

sets the overvoltage threshold. Use 4.99kΩfor R4. R5

is determined using the following equation:

R5 = 4.99 x 103x ((VOVT / VOVP) - 1)

VOVT is the desired overvoltage threshold and VOVP is

2V (typ). OVP latches off the MAX8533 if an overvoltage

condition exists for 1.5ms. Toggle EN, LPEN, or input

power to clear the latched fault condition.

Fault Reset

Overcurrent, severe overcurrent, and overvoltage con-

ditions result in the MAX8533 entering a latched fault

condition. Toggle LPEN, EN, or input power to reset the

latched fault condition and return to normal operation.

Power-Good Output (POK)

POK is an open-drain output used to enable the on-

board DC-to-DC converter. The POK output turns high

impedance when the output rail reaches 9.6V. POK

must be pulled up to the user’s logic level using a

pullup resistor.

Smallest, Most Reliable, 12V, Infiniband-

Compliant Hot-Swap Controller

8 _______________________________________________________________________________________

REF

DESIGNATOR DESCRIPTION MANUFACTURER

PART NO.

C1 470µF, 25V aluminum

electrolytic capacitor

Sanyo

25MV470HC

C2 0.1µF ±10%, 25V X5R

ceramic capacitor

Taiyo Yuden

TMK107BJ104KA

C3 0.01µF ±20% X7R

ceramic capacitor

Kemet

C0606C103M4RAC

C4 0.22µF ±10%, 25V X5R

ceramic capacitor

TDK

C1608X5R1A224K

R1* 10mΩ ±1%, 0.5W

current-sense resistor

Dale

LRF1206- 01- R010- F

R2 20Ω ±5% resistor Panasonic

R3 3.09kΩ ±1% resistor Panasonic

R4 4.99kΩ ±1% resistor Panasonic

R5 31.6kΩ ±1% resistor Panasonic

N1 N-channel MOSFET,

30V, 6mΩ

Siliconix

Si4842DY

Table 2. External Component List for 50W

Output

*Use a 20mΩ±1%, 0.25W current-sense resistor for 25W

applications.

_______PC Board Layout Guidelines

To take advantage of the switch response time to an

output fault condition, keep all traces as short as possi-

ble and maximize the high-current trace width to

reduce the effect of undesirable parasitic inductance.

The MOSFET dissipates a fair amount of heat due to

the high currents involved, especially during an over-

current condition. In order to dissipate the heat gener-

ated by the MOSFET, make the power traces very wide

with a large amount of copper area. A more efficient

way to achieve good power dissipation on a surface-

mount package is to lay out two copper pads directly

under the MOSFET package on both sides of the

board. Connect the two pads to the ground plane

through vias, and use enlarged copper mounting pads

on the top side of the board.

Minimize the current-sense resistor trace length

(<10mm), and ensure accurate current sensing with

Kelvin connections. Place capacitor CTIM as close as

possible to the IC. The traces from the current-sense

resistor to IN and ISET should be as short as possible

for accurate current sensing. Place the MAX8533 cir-

cuit as close as possible to the backplane connector. A

sample PC board layout is available in the MAX8533

Evaluation Kit.

MAX8533

Smallest, Most Reliable, 12V, Infiniband-

Compliant Hot-Swap Controller

_______________________________________________________________________________________ 9

Chip Information

TRANSISTOR COUNT: 2541

PROCESS: BiCMOS

LPEN

POK

OUTCTIM

GATE

ISET

MAX8533

µMAX

TOP VIEW

OVPRET

Pin Configuration

MAX8533

Smallest, Most Reliable, 12V, Infiniband-

Compliant Hot-Swap Controller

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are

implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

10 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600

Package Information

(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information

go to www.maxim-ic.com/packages.)

10LUMAX.EPS

PACKAGE OUTLINE, 10L uMAX/uSOP

21-0061 I

REV.DOCUMENT CONTROL NO.APPROVAL

PROPRIETARY INFORMATION

TITLE:

TOP VIEW

FRONT VIEW

0.498 REF

0.0196 REF

6∞

SIDE VIEW

BOTTOM VIEW

0∞ 0∞ 6∞

0.037 REF

0.0078

MAX

0.006

0.043

0.118

0.120

0.199

0.0275

0.118

0.0106

0.120

0.0197 BSC

INCHES

0.0035

0.007

0.187

0.0157

0.114

DIM

0.116

0.114

0.116

0.002

MIN

-A

0.940 REF

0.500 BSC

0.090

0.177

4.75

2.89

0.40

0.200

0.270

5.05

0.70

3.00

MILLIMETERS

0.05

2.89

2.95

MIN

3.00

3.05

0.15

3.05

MAX

1.10

0.6±0.1

ÿ 0.50±0.1

4X S

A2 A

E1 L

GAGE PLANE

A2 0.030 0.037 0.75 0.95