RHFL4913 STMICROELECTRONICS | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 11
Technical content
I EMBEDDED OVERTEMPERATURE, OVERCURRENT PROTECTIONS I ADJUSTABLE CURRENT LIMITATION I OUTPUT OVERLOAD MONITORING/ SIGNALLING I FIXED 2.5; 3.3V; 5.0V OUTPUT VOLTAGES I INHIBIT (ON/OFF) TTL COMPATIBLE CONTROL I PROGRAMMABLE OUTPUT SHORT CIRCUIT CURRENT I REMOTE SENSING OPERATION I RADHARD: TESTED UP TO 300krad IN MIL
1019.5 AND LOW DOSE RATE CONDITIONS
I HEAVY IONS SEL, SEU FREE. SUSTAINS 2x10 14 proton/cm2, AND 2x1014 neutron/cm²
DESCRIPTION
The RHFL4913 Fixed is a high performance Rad Hard Positive Voltage Regulator family. Available into various hermetic ceramic packages, it is specifically intended for Space and harsh radiation environments. Input supply range is from 3t o1 2v o l t s . RHFL4913 Fixed is Qml-V Qualified, DSCC Smd are 5962F02534 / 02535 / 02536 / 02537. RHFL4913 FIXED VERSION RAD-HARD POSITIVE FIXED VOLTAGE REGULATORS BLOCK DIAGRAM SMD.5 TO-257 FPC-16 Rev. 5
Table 1: Absolute Maximum Ratings(Note 1) Note 1: Exceeding maximum ratings may damage the device. Table 2: Thermal Data Figure 1: Connection Diagram (Top view, Bottom view for SMD.5) Table 3: Pin Description Symbol Parameter Value Unit VI DC Input Voltage, VI-V GROUND 14 V IO Output Current RHFL4913S, ESY 3 ARHFL4913KP 2 PD TC = 25°C Power Dissipation 15 W 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-16 TO-257 SMD.5 Unit Rthj-case Thermal Resistance Junction-case 8.3 8.3 8.3 °C/W Tsold Maximum soldering Temperature, 10sec. 300 °C PIN N° FPC-16 SMD.5 TO-257 VO 1, 2, 6, 7 1 3 VI 3, 4, 5 2 1 GND 13 3 2 ISC 8 OCM 10 INHIBIT 14 SENSE 16 NC 9, 11, 12, 15 FPC-16 TO-257 SMD.5
Table 4: Ordering Codes Table 5: Part Number - Smd Equivalence Note: 3V version is available on request. Table 6: Environmental Characteristics FPC-16 SMD.5 TO-257 SOLDER DIPPING OUTPUT VOLTAGE RHFL4913KP25-01V RHFL4913S25-03V RHFL4913ESY2505V GOLD 2.5 V RHFL4913KP25-02V RHFL4913S25-04V RHFL4913ESY2506V SOLDER 2.5 V RHFL4913KP30-01V RHFL4913S30-03V RHFL4913ESY3005V GOLD 3.0 V RHFL4913KP30-02V RHFL4913S30-04V RHFL4913ESY3006V SOLDER 3.0 V RHFL4913KP33-01V RHFL4913S33-03V RHFL4913ESY3305V GOLD 3.3 V RHFL4913KP33-02V RHFL4913S33-04V RHFL4913ESY3306V SOLDER 3.3 V RHFL4913KP50-01V RHFL4913S50-03V RHFL4913ESY5005V GOLD 5.0 V RHFL4913KP50-02V RHFL4913S50-04V RHFL4913ESY5006V SOLDER 5.0 V ST PART NUMBER SMD PART NUMBER RHFL4913KP25-01V 5962F0253401VXC RHFL4913KP25-02V 5962F0253401VXA RHFL4913KP33-01V 5962F0253501VXC RHFL4913KP33-02V 5962F0253501VXA RHFL4913KP50-01V 5962F0253601VXC RHFL4913KP50-02V 5962F0253601VXA RHFL4913S25-03V 5962F0253402VYC RHFL4913S25-04V 5962F0253402VYA RHFL4913S33-03V 5962F0253502VYC RHFL4913S33-04V 5962F0253502VYA RHFL4913S50-03V 5962F0253602VYC RHFL4913S50-04V 5962F0253602VYA RHFL4913ESY2505V 5962F0253402VZC RHFL4913ESY2506V 5962F0253402VZA RHFL4913ESY3305V 5962F0253502VZC RHFL4913ESY3306V 5962F0253502VZA RHFL4913ESY5005V 5962F0253602VZC RHFL4913ESY5006V 5962F0253602VZA 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
Table 7: Electrical Characteristics(TJ = 25°C, VI=V O +2.5V, CI=C O =1 µF, unless otherwise speci- fied) (*) 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 VI Operating Input VoltageIO =1 A T J= -55 to 125°C 31 2 V VO Output Voltage accuracy VI=V O +2.5V, IO = 5mA -2 2 % ISHORT Output Current Limit (*) Adjustable by mask/external resistor 4.5 A VO Operating Output Voltage IO = 2 A, 2.5 V output voltage 2.45 2.55 V VO Operating Output Voltage IO = 2 A, 3.3 V output voltage 3.23 3.37 V VO Operating Output Voltage IO = 2 A, 5.0 V output voltage 4.9 5.1 V ∆VO /∆ VI Line Regulation V I=V O + 2 . 5 Vt o1 2V ,IO =5 m A 0 . 3 5 % ∆VO /∆VO Load Regulation V I=V O +2.5V, IO = 5mA to 400 mA 0.3 % VI=V O +2.5V, IO =5 m At o1 A 0 . 5 % ZOUT Output Impedance I O = 100 mA DC and 20 mA rms 100 m Ω Iq Quiescent Current V I=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 . 4 V O f fM o d e 1 Iq Quiescent Current VI=VO +2.5V, IO =5mA, TJ=-55 to 125°C 6m A VI=VO +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 Vd Dropout Voltage I O =4 0 0 m A VO = 2.5 to 9 V, (-55°C) 300 400 V Dropout Voltage I O =4 0 0 m A VO = 2.5 to 9 V, (25°C) 350 450 IO =1 A V O = 2.5 to 9 V, (25°C) 650 IO =2 A V O = 2.5 to 9 V, (25°C) 900 Dropout Voltage I O =4 0 0 m A VO = 2.5 to 9 V, (125°C) 450 550 IO =1 A V O = 2.5 to 9 V, (125°C) 800 IO =2 A V O = 2.5 to 9 V, (125°C) 950 VINH(ON) Inhibit Voltage IO =5 m A ,TJ= -55 to 125°C 0.8 V VINH(OFF) Inhibit Voltage IO =5 m A ,TJ= -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=3 3 K H z 3 0 4 0 ISH Shutdown Input Current VINH =5V 1 5 µA VOCM OCM Pin Voltage Sinked I OCM = 10 mA active low 0.38 V tPLH tPHL Inhibit Propagation Delay VI=V O +2.5V, VINH =2 . 4V ,IO = 400 mA ON-OFF 20 µS OFF-ON 100 µS eN Output Noise Voltage B= 10Hz to 100KHz I O = 5mA to 2A 40 µVrms
Figure 2: Application Diagram For Remote Sensins Operation DEVICE DESCRIPTION The RHFL4913 Fixed Voltage contains a PNP type power element controlled by a signal resulting from amplified comparison between the internal temperature compensated Band-Gap cell and the fraction of the desired Output Voltage value. This fractional value is obtained from an internal-to-die resistor divider bridge set by STMicroelectronics. The device is protected by several functional blocks. Low pin count Package limitations Some functions (INHIBIT, OCM, SENSE) are not available due to lack of pins. Corresponding die pads are by default connected inside silicon. SENSE pin The Load voltage is applied by a Kelvin line connected to SENSE pin: Voltage feed-back comes from the internal divider resistor bridge. Therefore possible output voltages are set by manufacturer mask metal options. SENSE pin is not available in 3pin packages. INHIBIT ON-OFF Control By setting INHIBIT pin TTL-High, the Device switches off the Output Current and Voltage. The 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. INHIBIT pin is not available in 3pin packages. Overtemperature protection A temperature detector internally monitors the power element junction temperature. The Device goes OFF at approx. 175°C, returning to ON mode when back to approx. 40°C. It is worth noting that when the internal temperature detector reaches 175°C, the active power element can be at 225°C: Device reliability cannot be granted in case of extensive operation under these conditions. Overcurrent protection I SC pin. An internal non-fold back Short-Circuit limitation is set with ISHORT >3 . 8 A( VO is 0V). This value can be reduced by an external resistor connected between ISC pin and VIpin, with a typical value range of 10kΩ to 200kΩ . This adjustment feature is not available in 3pin packages. To keep excellent VO regulation, it is necessary to set ISHORT 1.6 times greater than the maximum desired application IO .W h e n IO reaches ISHORT – 300mA, the current limiter overrules Regulation and VO starts to drop and the OCM flag is risen. When no current limitation adjustment is required, ISC pin must be left unbiased (as it is in 3 pin packages). OCM pin Goes Low when current limiter starts to be active, otherwise VOCM =V I. It is bufferized and can sink 10mA. OCM pin is internally pulled-up by a 5 kΩ resistor. Not available in 3pin packages.
RHFL4913 Fixed (& custom) Voltages replace all 3-terminal Industry Devices, providing essential benefits - Lower Drop-Out - High radiation performance -B e t t e rS V R - Saving the high stability external setting resistors.
APPLICATION INFORMATION
The RHFL4913 Fixed Voltage is functional as soon as V I-VO voltage difference is slightly above the power element saturation voltage. A minimum 0.5mA IO ensures perfect “no-load” regulation. All available VI pins must always be externally interconnected, same thing for all available VO pins, otherwise Device stability and reliability cannot be granted. All NC pins can be connected to Ground. 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 some series-inductance exists. The effect would be a large transient voltage developed on both Device terminals. It is necessary 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 0.5Ω to over 20Ω . 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 Fixed Voltage manufactured with very high speed bipolar technology 6GHz f T transistors), the PCB lay-out must be performed with extreme care, very low inductance, low mutually coupling lines, otherwise high frequency parasitic signals may be picked-up by the Device resulting into self-oscillation. User’s benefit is a SVR performance extended to far higher frequencies. REMOTE SENSING OPERATION In case the Load is located far from the regulator, it is recommended to comply with the scheme below. To obtain the best regulation, it is in addition essential to care about: - The wire connecting R2 to the Load end must not be crossed by the Load current (Kelvin sense). The noise captured by the wires between the Load and the chip could bring a noisy output voltage. In case this happens, it is recommended that shielded cables are used for these connections. The external wrap must be used for connecting the ground of the chip with the Load Ground. It is also recommended to place 1uF tantalum capacitors between Output and Ground close to the device and another next to the Load.
DIM. mm. inch 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 e b c L E D S1 Q A L
DIM. mm. inch A 3.00 0.118 A1 0.38 0.015 b 7.26 0.286 b1 5.72 0.225 b2 2.41 0.095 b3 3.05 0.120 D 10.16 0.400 D1 0.76 0.030 E 7.52 0.296 e 1.91 0.075 SMD.5 MECHANICAL DATA 7386434A
DIM. mm. inch A 10.54 0.415 B 10.54 0.415 C 16.64 0.655 D 4.7 5.33 0.185 0.210 E 1.02 0.40 G 13.51 0.532 H 5.26 0.207 I 0.76 0.030 J 3.05 0.120 K 2.54 0.100 L 15.2 16.5 0.598 0.650 M 2.29 0.090 N 0.71 0.028 R 1.65 0.065 TO-257 MECHANICAL DATA 0117268C
Table 8: Revision History Date Revision Description of Changes 05-May-2004 5 Mistake in Pin description SMD.5 on Table 3
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result 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. The ST logo is a registered trademark of STMicroelectronics All other names are the property of their respective owners © 2004 STMicroelectronics - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. http://www.st.com