MSK5820-1.8 [ANAREN]

RAD HARD ULTRA LOW DROPOUT POSITIVE LINEAR REGULATOR;


型号：	MSK5820-1.8
厂家：	ANAREN MICROWAVE
描述：	RAD HARD ULTRA LOW DROPOUT POSITIVE LINEAR REGULATOR
文件：	总9页 (文件大小：548K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

MIL-PRF-38534 AND 38535 CERTIFIED FACILITY

RAD HARD

5820RH

ULTRA LOW DROPOUT

POSITIVE LINEAR REGULATOR

SERIES

M.S.KENNEDY CORP.

FEATURES:

Manufactured using

Space Qualified RH1573 Die

New "Harder" Version of MSK 5920RH

Total Dose Hardened to 300 Krads(Si) (Method 1019.7 Condition A)

Ultra Low Dropout for Reduced Power Consumption

External Shutdown Function

Latching Overload Protection

Available in 1.5V,1.8V,1.9V,2.5V,2.8V,3.3V and 5.0V Output Voltages

Alternate Output Voltages Available

Output Current Limit

Available in 4 Lead Form Options: Straight, Up, Down and Gull Wing

Replaces IR OMR9601 and IRUH33PXXXB/IRUH50PXXXB

ELDRS Tested to 100 Krads(Si) (Method 1019.7 Condition D)

Neutron Tested to 1.0x10¹² n/cm² (Method 1017.2)

Available to DLA SMD 5962F09216

DESCRIPTION:

The MSK5820RH is a rad hard fixed linear regulator capable of delivering 5.0 amps of output current. Typical dropout is

only 0.22 volts with a 2.5 amp load. An external shutdown function is ideal for power supply sequencing. This device also

has internal latching overload protection. The MSK5820RH is radiation hard and specifically designed for space/satellite

applications. The device is packaged in a hermetically sealed space efficient 5 pin SIP that is electrically isolated from the

internal circuitry allowing for direct heat sinking.

EQUIVALENT SCHEMATIC

TYPICAL APPLICATIONS

PIN-OUT INFORMATION

Satellite System Power Supplies

Switching Power Supply Post Regulators

Constant Voltage/Current Regulators

Microprocessor Power Supplies

1 VIN

2 GND

3 VOUT

4 SHUTDOWN

5 N/C

CASE=ISOLATED

8548-14 Rev. I 6/14

ABSOLUTE MAXIMUM RATINGS

¹³-65°C to +150°C

Storage Temperature Range

Lead Temperature Range

(10 Seconds)

Power Dissipation

Junction Temperature

VIN

TST

TLD

Supply Voltage

Shutdown Voltage

Output Current

Case Operating Temperature Range

MSK5820K/H RH

MSK5820RH

+10V

10V

VSD

IOUT

300°C

See SOA Curve

150°C

-55°C to +125°C

-40°C to +85°C

ELECTRICAL SPECIFICATIONS

PART NUMBER

MSK5820-1.5

MSK5820-1.8

MSK5820-1.9

MSK5820-2.5

MSK5820-2.8

MSK5820-3.3

MSK5820-5.0

OUTPUT VOLTAGE

+1.5V

+1.8V

+1.9V

+2.5V

+2.8V

+3.3V

+5.0V

NOTES:

Unless otherwise specified, VIN=VOUT+1V, VSHUTDOWN=0V and IOUT=10mA. See figure 2 for typical test circuit.

Guaranteed by design but not tested. Typical parameters are representative of actual device performance but are for reference only.

Industrial grade devices shall be tested to subgroups 1 and 4 unless otherwise requested.

Military grade devices ("H" and "K" suffix) shall be 100% tested to subgroups 1,2,3 and 4.

Subgroup 5 and 6 testing available upon request.

Subgroup 1,4 TC=+25°C

Subgroup 2,5 T^C=+125°C

Subgroup 3,6 TA=-55°C

Output current limit is dependent upon the values of VIN and VOUT. See Figure 1 and typical performance curves.

Continuous operation at or above absolute maximum ratings may adversely effect the device performance and/or life cycle.

VIN shall be as specified or VIN min., whichever is greater.

Not applicable to versions where VIN=VIN Min.

Pre and post irradiation limits at 25°C, up to 300Krad TID, are identical unless otherwise specified.

Reference DLA SMD 5962F09216 for electrical specification for devices purchased as such.

Internal solder reflow temperature is 180°C, do not exceed.

8548-14 Rev. I 6/14

APPLICATION NOTES

PIN FUNCTIONS

VIN- This pin provides power to all internal circuitry in-

cluding bias, start-up, thermal limit and overcurrent latch.

Input voltage range is 2.9V to 6.5V.

GND - Internally connected to ground, this pin should be

connected externally by the user to the circuit ground.

SHUTDOWN - There are two functions to the SHUTDOWN

pin. It may be used to disable the output voltage or to

reset a current latch condition. To activate the shutdown/

reset functions the user must apply a voltage greater than

1.6V to the SHUTDOWN pin. The voltage applied to the SHUT-

DOWN pin can be greater than the input voltage. The output

voltage will turn on when the SHUTDOWN pin is pulled be-

low the threshold voltage. If the SHUTDOWN pin is not used,

it should be connected to ground. It should be noted that

with the shutdown pin tied to ground, a current latch condi-

tion can only be reset by cycling power off, then on.

VOUT - This is the output pin for the device.

FIGURE 1

OVERCURRENT LATCH

CURRENT LIMIT AND SOA

Overcurrent protection is provided by the MSK5820RH

series through the use of a timed latch off circuit. The

internal latch timeout is triggered by an overcurrent con-

dition. To allow for start up surge currents, the timeout is

approximately 5.5mS at 25°C. If the overcurrent condi-

tion remains at the end of the timeout cycle, the regulator

will latch off until the latch is reset. Reset the latch by

pulling the shutdown pin high or cycling VIN off then back

on. A thermal limit condition will trigger the latch with no

time out delay.

The MSK5820RH current limit function is directly affected

by the input and output voltages. Figure 1 illustrates the rela-

tionship between VIN and ICL for various output voltages. It

is very important for the user to consult the SOA curve when

using input voltages which result in current limit conditions

beyond 4.5 Amps. When using input voltages which result in

current limit above 4.5 Amps, the user must maintain output

current within the SOA curve to avoid damage to the device.

Note that 5 Amp maximum is due to current carrying capa-

bility of the internal wirebonds.

INPUT POWER SUPPLY BYPASSING

To maximize transient response and minimize power sup-

ply transients it is recommended that two 47μF tantalum

capacitors are connected between VIN and ground. A

0.1μF ceramic capacitor should also be used for high fre-

quency bypassing. See typical application circuit.

REPLACING THE OMR9601/IRUH33P253AIM

When the MSK5820-2.5RH is used as a replacement for

the IR OMR9601 or IRUH33P253B, the user should recog-

nize that the MSK5820-2.5RH does not contain internal tan-

talum capacitors on the input and output.

OUTPUT CAPACITOR SELECTION

Low ESR output capacitors are required to maintain regu-

lation and stability. Four CWR29FB227 (AVX PN

TAZH227K010L) tantalum capacitors in parallel with ce-

START UP CURRENT

The MSK5820RH sinks increased current during startup to

ramic decoupling capacitors (0.1μF typical) provides suf- bring up the output voltage. Reference the "Saturated Drive

ficient gain and phase margin for most applications. The Current vs. Input Voltage" graph in the typical performance

maximum ESR specification for the CWR29FB227 capaci- curves of this data sheet and the "Understanding Startup

tor is 180mΩ at 100kHz and is sufficient for many appli- Surge Current With MS Kennedy's RH1573 Based Rad Hard

cations. MSK has found through full WCCA that screen- LDO Regulators" application note in the application notes

ing for a maximum ESR of 57mΩ ensures EOL stability section of the MS Kennedy Web site for more information.

criteria to be met for many applications with the most

stringent requirements.The typical ESR of the http://www.mskennedy.com/

TAZH227K010L from AVX is 49mΩ . Analysis of the fi-

nal design is recommended to ensure stability require-

ments are met.

8548-14 Rev. I 6/14

APPLICATION NOTES CONT.

THERMAL LIMITING

The MSK5820RH control circuitry has a thermal shut-

down temperature of approximately 150°C. This ther-

mal shutdown can be used as a protection feature, but

for continuous operation, the junction temperature of the

pass transistor must be maintained below 150°C. Proper

heat sink selection is essential to maintain these condi-

tions. Exceeding the thermal limit activates the latch fea-

ture of the MSK5820RH. Toggle the shutdown pin high them

low or cycle power to reset the latch. See shutdown pin

description and overcurrent latch description for more in-

formation.

TYPICAL APPLICATIONS CIRCUIT

HEAT SINK SELECTION

To select a heat sink for the MSK5820RH, the following

formula for convective heat flow may be used.

Governing Equation:

TJ = PD X (RθJC + RθCS + RθSA) + TA

Where

= Junction Temperature

= Total Power Dissipation

RθJC = Junction to Case Thermal Resistance

RθCS = Case to Heat Sink Thermal Resistance

RθSA = Heat Sink to Ambient Thermal Resistance

FIGURE 2

= Ambient Temperature

Power Dissipation=(VIN-VOUT) x IOUT

TOTAL DOSE RADIATION TEST

PERFORMANCE

Next, the user must select a maximum junction tem-

perature. The absolute maximum allowable junction tem-

perature is 150°C. The equation may now be rearranged

to solve for the required heat sink to ambient thermal

resistance (RθSA).

Radiation performance curves for TID testing have been

generated for all radiation testing performed by MS

Kennedy. These curves show performance trends

throughout the TID test process and can be located in

the MSK5810RH radiation test report. The complete radia-

tion test report is available in the RAD HARD PRODUCTS

section on the MSK website.

Example:

An MSK5820-2.5RH is connected for VIN=+3.3V and

VOUT=+2.5V. IOUT is a continuous 3A DC level. The ambi-

ent temperature is +25°C. The maximum desired junction

temperature is +125°C.

http://www.mskennedy.com/store.asp?pid=9951&catid=19680

RθJC=4.0°C/W and RθCS=0.15°C/W for most thermal

greases

Power Dissipation=(3.3V-2.5V) x (3A)

=2.4 Watts

Reference the MSK5826RH RAD REPORT for ELDRS and

Neutron results.

Solve for RθSA:

125°C - 25°C

RθSA=

-2.9°C/W - 0.15°C/W

2.4W

= 38.6°C/W

In this example, a heat sink with a thermal resistance

of no more than 38.6°C/W must be used to maintain a

junction temperature of no more than 125°C.

8548-14 Rev. I 6/14

TYPICAL PERFORMANCE CURVES

8548-14 Rev. I 6/14

TYPICAL PERFORMANCE CURVES

GAIN AND PHASE RESPONSE

The gain and phase response curves are for the MSK typical application circuit at 25°C and are representative of

typical device performance, but are for reference only. The performance should be analyzed for each application to

insure individual program requirements are met. External factors such as temperature, input and output voltages,

capacitors, etc. all can be major contributors. Please consult factory for additional details.

8548-14 Rev. I 6/14

MECHANICAL SPECIFICATIONS

ESD TRIANGLE INDICATES PIN 1

WEIGHT=7.7 GRAMS TYPICAL

ALL DIMENSIONS ARE SPECIFIED IN INCHES

ORDERING INFORMATION

MSK5820-3.3 K RH GW

LEAD CONFIGURATIONS

GW= GULL WING

RADIATION HARDENED

SCREENING

BLANK= INDUSTRIAL; H=MIL-PRF-38534 CLASS H;

K=MIL-PRF-38534 CLASS K

OUTPUT VOLTAGE

1.5=+1.5V; 1.8=+1.8V; 1.9=+1.9V; 2.5=+2.5V;

2.8=+2.8V; 3.3=+3.3V; 5.0=+5.0V

GENERAL PART NUMBER

The above example is a +3.3V, Class K regulator with gull wing leads.

NOTE: See DLA SMD 5962F09216 for DLA part number options.

8548-14 Rev. I 6/14

MECHANICAL SPECIFICATIONS

ESD TRIANGLE INDICATES PIN 1

WEIGHT=7.7 GRAMS TYPICAL

ALL DIMENSIONS ARE SPECIFIED IN INCHES

ORDERING INFORMATION

MSK5820-3.3 K RH U

LEAD CONFIGURATIONS

S= STRAIGHT; U= BENT UP; D= BENT DOWN

RADIATION HARDENED

SCREENING

BLANK= INDUSTRIAL; H=MIL-PRF-38534 CLASS H;

K=MIL-PRF-38534 CLASS K

OUTPUT VOLTAGE

1.5=+1.5V; 1.8=+1.8V; 1.9=+1.9V; 2.5=+2.5V;

2.8=+2.8V; 3.3=+3.3V; 5.0=+5.0V

GENERAL PART NUMBER

The above example is a +3.3V, Class K regulator with leads bent up.

NOTE: See DLA SMD 5962F09216 for DLA part number options.

8548-14 Rev. I 6/14

REVISION HISTORY

M.S. Kennedy Corp.

Phone (315) 701-6751

FAX (315) 701-6752

www.mskennedy.com

The information contained herein is believed to be accurate at the time of printing. MSK reserves the right to make

changes to its products or specifications without notice, however, and assumes no liability for the use of its products.

Please visit our website for the most recent revision of this datasheet.

8548-14 Rev. I 6/14

MSK5820-1.8 [ANAREN]

相关型号：

MSK5820-1.8HRHD

MSK5820-1.8HRHGW

MSK5820-1.8HRHS

MSK5820-1.8HRHU

MSK5820-1.8KRHGW

MSK5820-1.8KRHGW

MSK5820-1.8KRHS

MSK5820-1.8RHD

MSK5820-1.8RHGW

MSK5820-1.8RHS

MSK5820-1.9

MSK5820-1.9HRHD