RHFL4913XX15 - RHFL4913XX25
RHFL4913XX33 - RHFL4913XX50
Rad-hard positive fixed voltage regulator
Features
■
■
■
■
■
■
■
■
■
■
2 and 3 A low dropout voltage
Embedded overtemperature, overcurrent
protections
Adjustable current limitation
Output overload monitoring/signalling
Fixed 1.5 V, 2.5 V; 3.3 V; 5.0 V output voltages
Inhibit (ON/OFF) TTL-compatible control
Programmable output short-circuit current
Remote sensing operation
Rad-hard: tested up to 300 krad Mil Std 883E
Method 1019.6 and low dose rate conditions
Heavy ion, SEL, and SEU immune; able to
sustain 2x10
14
protons/cm
2
and 2x10
14
neutrons/cm
2
TO-257
Flat-16
SMD.5
Available into various hermetic ceramic packages,
it is specifically intended for space and harsh
radiation environments. Input supply range is up
to 12 V.
RHFL4913 fixed is QML-V qualified, DSCC SMD
are 5962F02534 / 02535 / 02536.
Description
The RHFL4913 fixed is a high performance Rad-
hard positive voltage regulator family.
Figure 1.
Block diagram for package SMD.5 and TO-257
August 2008
Rev 8
1/19
www.st.com
19
Contents
RHFL4913XX15 - RHFLXX25 - RHFLXX33 - RHFLXX50
Contents
1
2
3
4
5
Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Device description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.1
5.2
5.3
5.4
5.5
5.6
5.7
Low pin count package limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
SENSE pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Inhibit ON-OFF control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Overtemperature protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Overcurrent protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
OCM pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Alternate to . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6
Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6.1
Remote sensing operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7
Notes about Flat-16 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7.1
7.2
Radiation performances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Die information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
8
9
10
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2/19
RHFL4913XX15 - RHFLXX25 - RHFLXX33 - RHFLXX50
Diagram
1
Figure 2.
Diagram
Block diagram for package Flat-16
3/19
Pin configuration
RHFL4913XX15 - RHFLXX25 - RHFLXX33 - RHFLXX50
2
Figure 3.
Pin configuration
Pin configuration (top view for Flat-16, bottom view for SMD.5)
Flat-16
SMD.5
TO-257
Table 1.
Pin description
Pin name
V
O
V
I
GND
I
SC
OCM
INHIBIT
SENSE
NC
Flat-16
1, 2, 6, 7
3, 4, 5
13
8
10
14
16
9, 11, 12, 15
SMD.5
1
2
3
TO-257
3
1
2
4/19
RHFL4913XX15 - RHFLXX25 - RHFLXX33 - RHFLXX50
Maximum ratings
3
Table 2.
Symbol
V
I
I
O
Maximum ratings
Absolute maximum ratings
(1)
Parameter
DC input voltage, V
I
- V
GROUND
RHFL4913S, ESY
Output current
RHFL4913KP
KP, S Versions
P
D
T
STG
T
OP
T
J
ESD
T
C
= 25°C power dissipation
Storage temperature range
Operating junction temperature range
Junction temperature
(2)
Electrostatic discharge capability
ESY Version
2
15
W
10
-65 to +150
-55 to +150
+150
Class 3
°C
°C
°C
Value
14
3
A
Unit
V
1. Exceeding maximum ratings may damage the device.
2. Internally limited to about maximum +175 °C by thermal shutdown circuit.
Table 3.
Symbol
R
thJC
T
SOLD
Thermal data
Parameter
Thermal resistance junction-case max.
Maximum soldering temperature, 10 sec.
Flat-16
8.3
TO-257
12.5
300
SMD.5
8.3
Unit
°C/W
°C
5/19
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