5962F0252402VYA - STMicroelectronics, Inc.

1/10February 2004

■1-3 AMPERE LOW DROPOUT VOLTAGE

■EMBEDDED OVERTEMPERATURE,

OVERCURRENT PROTECTIONS

■ADJUSTABLE OVERCURRENT LIMITATION

■OUTPUT OVERLOAD MONITORING/

SIGNALLING

■ADJUSTABLE OUTPUT VOLTAGE

■INHIBIT (ON/OFF) TTL COMPATIBLE

CONTROL

■PROGRAMMABLE OUTPUT SHORT

CIRCUIT CURRENT

■REMOTE SENSING OPERATION

■RADHARD: TESTED UP TO 300krad IN MIL

1019.5 AND LOW DOSE RATE CONDITIONS

■HEAVY IONS SEL, SEU IMMUNE.

SUSTAINS 2x1014 proton/cm2, AND 2x1014

neutron/cm2

DESCRIPTION

The RHFL4913 ADJUSTABLE is a high

performance Rad Hard Adjustable Positive

Voltage Regulator.

Available into various hermetic ceramic packages,

it is specifically intended for Space and harsh

radiation environments. Input supply range is from

3to12volts.

The RHFL4913 ADJUSTABLE is Qml-V Qualified,

DSCC Smd is 596202524.

RHFL4913

ADJUSTABLE

RAD-HARD ADJUSTABLE POSITIVE

VOLTAGE REGULATOR

BLOCK DIAGRAM

SOC-14

FPC-16 FPC-14

RHFL4913 ADJUSTABLE VERSION

2/10

ABSOLUTE MAXIMUM RATINGS (Note 1)

Note 1: Exceeding maximum ratings may damage the device.

THERMAL DATA

CONNECTION DIAGRAM (Top view)

Symbol Parameter Value Unit

VIDC Input Voltage, VI-V

GROUND 14 V

VODC Output Voltage Range 1.3to9 V

IOOutput Current RHFL4913KSOA, KA 1 A

RHFL4913KPA 2

PDTC= 25°C Power Dissipation KSOA, KA versions (14 Pin) 3 W

KPA, versions (16 Pin) 15

Tstg Storage Temperature Range -65 to +150 °C

Top Operating Junction Temperature Range -55 to +150 °C

ESD Electrostatic Discharge Capability Class 3

Symbol Parameter FPC-14 SOC-14 FPC-16 Unit

Rthj-case Thermal Resistance Junction-case Max 42 42 8.3 °C/W

Tsold Maximum soldering Temperature, 10sec. 300 °C

SOC-14

FPC-16 FPC-14

RHFL4913 ADJUSTABLE VERSION

3/10

PIN DESCRIPTION

ORDERING CODES

PART NUMBER - SMD EQUIVALENCE

ENVIRONMENTAL CHARACTERISTICS

PIN N° FPC-16 FPC-14 SOC-14

VO1, 2, 6, 7 2, 6 2, 6

VI3, 4, 5 3, 5 3, 5

GND131212

ISC 877

OCM 10 8 8

INHIBIT141313

ADJ151414

NC 9, 11, 12, 16 1, 4, 9, 10, 11 1, 4, 9, 10, 11

FPC-14 FPC-16 SOC-14 SOLDER

DIPPING OUTPUT

VOLTAGE

RHFL4913KA-05V RHFL4913KPA-01V RHFL4913SOA-03V GOLD ADJ

RHFL4913KA-06V RHFL4913KPA-02V RHFL4913SOA-04V SOLDER ADJ

ST PART NUMBER SMD PART NUMBER

RHFL4913KPA-01V 5962F0252401VXC

RHFL4913KPA-02V 5962F0252401VXA

RHFL4913SOA-03V 5962F0252402VYC

RHFL4913SOA-04V 5962F0252402VYA

RHFL4913KA-05V 5962F0252402VZC

RHFL4913KA-06V 5962F0252402VZA

Parameter Conditions Typical Unit

Output Voltage thermal drift -55°C to 125°C 40 ppm/°C

Output Voltage radiation drift from 0 krad to 300 krad at 0.55rad/sec 8 ppm/krad

Output Voltage radiation drift from 0 krad to 300 krad, Mil 1019.5 6 ppm/krad

RHFL4913 ADJUSTABLE VERSION

4/10

ELECTRICALCHARACTERISTICS(TJ=25°C,VI=VO+2.5V,CI=CO=1µF,unlessotherwisespecified)

(*) This value is guaranteed by design. For each application it’s strongly recommended to comply with the maximum current limit of the pack-

age used.

Symbol Parameter Test Conditions Min. Typ. Max. Unit

VIOperating Input Voltage IO=1A T

J= -55 to 125°C312V

VADJ Adjust Pin Voltage VI,V

O,I

O,P

Dwithin Max Rating limits 1.19 1.27 %

ISHORT Output Current Limit (*) Adjustable by mask/external resistor 4.5 A

∆VO/∆VILine Regulation VI=V

O+2.5V to 12 V, IO= 5mA 0.35 %

∆VO/∆VOLoad Regulation VI=V

O+2.5V, IO= 5mA to 400 mA 0.3 %

VI=V

O+2.5V, IO=5mAto1A 0.5

ZOUT Output Impedance IO= 100 mA DC and 20 mA rms 100 mΩ

IqQuiescent Current VI=V

O+2.5V, IO=5mA On Mode 6 mA

VI=V

O+2.5V, IO=30mA On Mode 8

VI=V

O+2.5V, IO=300mA On Mode 25

VI=V

O+2.5V, IO=1A On Mode 60

VI=V

O+2V, VINH = 2.4V Off Mode 1

IqQuiescent Current VI=V

O+2.5V, IO=5mA, TJ=-55 to 125°C 6 mA

VI=V

O+2.5V, IO=30mA, TJ=-55 to 125°C 14

VI=V

O+2.5V, IO=300mA, TJ=-55 to 125°C 40

VI=V

O+2.5V, IO=1A, TJ=-55 to 125°C 100

VdDropout Voltage IO= 400mA VO= 2.5 to 9 V, (-55°C) 300 400 V

IO= 400mA VO= 2.5 to 9 V, (25°C) 350 450

IO=1A V

O= 2.5 to 9 V, (25°C) 650

IO=2A V

O= 2.5 to 9 V, (25°C) 900

IO= 400mA VO= 2.5 to 9 V, (125°C) 450 550

IO=1A V

O= 2.5 to 9 V, (125°C) 800

IO=2A V

O= 2.5 to 9 V, (125°C) 950

VINH(ON) Inhibit Voltage IO=5mA,T

J=-55 to 125°C 0.8 V

VINH(OFF) Inhibit Voltage IO=5mA,T

J=-55 to 125°C 2.4 V

SVR Supply Voltage Rejection VI=V

O+2.5V ±0.5V,

IO=5mA f = 120Hz 60 70 dB

f = 33KHz 30 40

ISH Shutdown Input Current VINH =5V 15 µA

VOCM OCM Pin Voltage Sinked IOCM =10mAactivelow 0.38 V

tPLH

tPHL

Inhibit Propagation Delay VI=V

O+2.5V, VINH =2.4V,I

O= 400 mA ON-OFF 20 µS

OFF-ON 100 µS

eN Output Noise Voltage B= 10Hz to 100KHzIO=5mA to 2A 40 µVrms

RHFL4913 ADJUSTABLE VERSION

5/10

APPLICATION DIAGRAM FOR REMOTE SENSINS OPERATION

DEVICE DESCRIPTION

The RHFL4913 Adjustable contains a PNP type power element controlled by a signal resulting from

amplified comparison between the internal temperature compensated Band-Gap and the fraction of the

desired Output Voltage value obtained from an external resistor divider bridge. The device is protected by

several functional blocks.

ADJ pin

The Load output voltage feed-back comes from an external divider resistor bridge middle point connected

to ADJ pin (allowing all possible output voltage settings as per User’s desire) established between Load

terminals.

INHIBIT ON-OFF Control

By setting INHIBIT pin TTL-High, the Device switches off the Output Current and Voltage. Device is ON

when INHIBIT pin is set Low. Since INHIBIT pin is internally pulled down, it can be left floating in case

Inhibit function is not utilized.

Overtemperature protection

A temperature detector internally monitors the power element junction temperature. The Device goes

OFF when approx. 175°C are reached, returning to ON mode when back to approx. 40°C. Combined with

other protection blocks, it protects the Device from destructive junction temperature excursions in all load

conditions. It is worth noting that when internal temperature detector reaches 175°C, the active power

element can be at 225°C: Extensive operation under these conditions far exceeds Maximum Operation

Ratings and Device reliability cannot be granted.

Overcurrent protection

An internal non-fold back Short-Circuit limitation is set with ISHORT >3.8A (V

Ois 0V). This value can be

downwards modified by an external resistor connected between ISC pin and VIpin, with a typical value

range of 10kΩto 200kΩ. To keep excellent VOregulation, it is necessary to set ISHORT 1.6 times greater

than the maximum desired application IO.WhenI

Oreaches ISHORT – 300mA, the current limiter overrules

Regulation and VOstarts to drop and OCM flag is risen. When no current limit adjustment is required, ISC

pin must be left unbiased (as it is in 3pin packages).

OCM pin

Goes Low when current limit starts to be active, otherwise VOCM =V

I. It is buffered and can sink 10mA.

OCM pin is internally pulled-up by a 5 kΩresistor.

Alternates to: RHFL4913 is recommended to replace all Industry Positive Regulators due to its

exceptional Radiation performance. To replace 3-terminal Industry devices, use RHFL4913 Fixed

Voltage versions.

RHFL4913 ADJUSTABLE VERSION

6/10

APPLICATION INFORMATION

Adjusting Output Voltage: R2 resistor must be connected between VOand ADJ. R1 resistor must be

connected between ADJ and Ground. Resistor values can be derived from the following formula:

VO=V

ADJ x(R1+R2)/R1

VADJ is 1.22V, controlled by the internal temperature compensated Band Gap block.

The minimum Output voltage is therefore 1.22V and minimum Input voltage is 3V.

The RHFL4913 Adjustable is functional as soon as VI-V

Ovoltage difference is slightly above the power

element saturation voltage. The Adjust pin to Ground resistor must not be bigger than 10kΩto keep the

output feed-back error below 0.2%. A minimum 0.5mA IOmust be set to ensure perfect “no-load”

regulation. It is advisable to dissipate this current into the divider bridge resistor. All available VIpins shall

always be externally interconnected, same thing for all available VOpins, otherwise Device stability and

reliability cannot be granted. The INHIBIT function switches off the output current in an electronic way,

that is very quickly. According to Lenz’s Law, external circuitry reacts with LdI/dt terms which can be of

high amplitude in case somewhere an inductance exists. Large transient voltage would develop on both

Device terminals. It is advisable to protect the Device with Schottky diodes preventing negative voltage

excursions. In the worst case, a 14V Zener diode shall protect the Device Input. The Device has been

designed for high stability and low drop out operation: Minimum 1µF input and output tantalum capacitors

are therefore mandatory. Capacitor ESR range is from 0.5 Ωto over 20 Ω. Such range turns out to be

useful when ESR increases at low temperature. When large transient currents are expected, larger value

capacitors are necessary.

In case of high current operation with expected short-circuit events, caution must be considered relatively

to capacitors. They must be connected as close as possible to device terminals. As some tantalum

capacitors may permanently fail when submitted to high charge-up surge currents, it is recommended to

decouple them with 470nF polyester capacitors.

Being RHFL4913 Adjust manufactured with very high speed bipolar technology (6GHz fTtransistors), the

PCB layout must be performed with exceptional care, very low inductance, low mutually coupling lines,

otherwise high frequency parasitic signals may be picked-up by the Device resulting into system

self-oscillation. The benefit is an SVR performance extended to far higher frequencies.

RHFL4913 ADJUSTABLE VERSION

7/10

DIM. mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 6.90 0.272

B 9.95 0.392

C 1.49 1.95 0.059 0.077

D 0.102 0.127 0.152 0.004 0.005 0.006

E 7.5 7.75 0.295 0.305

F 1.27 0.050

G 0.43 0.017

H 0.60 0.90 0.024 0.035

K 9 0.354

L 10.00 10.65 0.394 0.419

M 0.38 0.015

N 4.31 0.170

SOC-14 MECHANICAL DATA

0041206C

Note 1

RHFL4913 ADJUSTABLE VERSION

8/10

DIM. mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 6.9 0.272

B 9.95 0.392

C 1.49 1.95 0.059 0.077

D 0.127 0.005

E 7.62 0.300

F 1.27 0.050

G 0.43 0.017

H 6.0 0.236

L 18.75 22.0 0.738 0.866

M 0.38 0.015

N 4.31 0.170

FPC-14 MECHANICAL DATA

016029D

814

RHFL4913 ADJUSTABLE VERSION

9/10

DIM. mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 2.16 2.72 0.085 0.107

b 0.43 0.017

c 0.13 0.005

D 9.91 0.390

E 6.91 0.272

E2 4.32 0.170

E3 0.76 0.030

e 1.27 0.050

L 6.72 0.265

Q 0.66 1.14 0.026 0.045

S1 0.13 0.005

ALN FPC-16 (MIL-STD-1835) MECHANICAL DATA

7450901A

S1 Q

RHFL4913 ADJUSTABLE VERSION

10/10

Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the

conseq uences of use o f suc h info rmat ion n or for any in fringeme nt of paten ts or oth er righ ts of third part ies whic h may resul t from

its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications

mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information

previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or

systems without express written approval of STMicroelectronics.

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