ST RHFL7913A User Manual
Rad-hard adjustable negative voltage regulator
Features
■ 3 A low dropout voltage
■ Optional overtemperature and overcurrent
protection
■ Adjustable overcurrent limitation
■ Load short circuit monitoring
■ Adjustable output voltage
■ Inhibit (ON/OFF) TTL-compatible control
■ Programmable output short-circuit current
limitation
■ Remote sensing operation
■ Rad-hard: sustains 300 krad in Mil-1019.7 at
High & ELDRS low dose rate conditions
■ Heavy ions, SEL immune at 68 MeV/cm²/mg
LET ions
RHFL7913A
FLAT-16
Description
The RHFL7913A adjustable is a high
performance Rad hard negative voltage regulator.
Available in FLAT-16 and new SMD5C hermetic
ceramic packages, it is specifically intended for
space and harsh radiation environments. It
provides exceptional electrical performances,
high speed and low dropout voltage. Input supply
ranges from - 3 V to - 12 V. It also provide logical
control / monitor functions (inhibit, output monitor,
short-circuit control) from/to external positive
voltage signals, while the entire RHFL7913A
adjustable analog functions are biased at
negative voltages with respect of ground pin. The
device is QML-V qualified with SMD 5962-02532.
SMD5C:
5-connection SMD
December 2011 Doc ID 12344 Rev 7 1/19
www.st.com
19
Contents RHFL7913A
Contents
1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 Device description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.1 ADJ pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.2 Inhibit ON-OFF control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.3 Overtemperature protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.4 Overcurrent protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.5 OCM pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5.6 Alternates to . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6.1 Remote sensing operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7 Die information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
9 Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
10 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
11 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2/19 Doc ID 12344 Rev 7
RHFL7913A Diagram
1 Diagram
Figure 1. Block diagram
Doc ID 12344 Rev 7 3/19
Pin configuration RHFL7913A
2 Pin configuration
Figure 2. Pin configuration (top view for FLAT-16, bottom view for SMD5C)
Table 1. Pin description
Pin n° FLAT-16
DSCC Part Ident. 5962-02532 5962-02532
1V
2V
3V
4I
5OCMV
6V
7GND
8N.C.
9N.C.
10 GND
11 Inhibit
12 ADJ
FLAT-16
SMD5C
(1)
, Negative Input VO, Negative Output
I
, Negative Input ADJ
I
, Negative Input Inhibit
I
SC
, Positive Supply
PLUS
SMD5C
GND
, Negative Input
I
(2)
13 N.C.
14 V
15 V
16 V
1. The upper metallic package lid and the bottom metallization are neither connected to regulator die nor to package
terminals, hence electrically floating.
2. The upper metallic package lid is neither connected to regulator die nor to package terminals, hence electrically floating.
, Negative Output
O
, Negative Output
O
, Negative Output
O
4/19 Doc ID 12344 Rev 7
RHFL7913A Maximum ratings
3 Maximum ratings
Table 2. Maximum operating ratings
Symbol Parameter Value Unit
V
V
PLUS
V
V
V
DC input voltage |VIN – V
I
| -12
PLUS
Logical block supply voltage V(+)-V(GND), unless grounded +5
DC voltage, V
I
DC voltage, V
I
DC output voltage range -9 to -1.20
O
IN–
IN–
GND, V
GND, V
= 0V -12
PLUS
=+3V -9
PLUS
V
RHFL7913KPA 2
I
OUT
Output current
RHFL7913SCA 3
A
RHFL7913KPA 15
T
P
T
STG
OP
TC = 25 °C power dissipation
D
RHFL7913SCA 15
Storage temperature range -65 to +150
Operating junction temperature range -55 to +150
W
°C
ESD Electrostatic discharge capability Class 3
Note: Absolute maximum ratings are those values beyond which damage to the device may occur.
Functional operation under these conditions is not implied.
Table 3. Thermal data
Symbol Parameter Value Unit
R
T
thJC
SOLD
Thermal resistance junction-case, FLAT-16 and SMD5C 8.3 °C/W
Maximum soldering temperature, 10 sec. 300 °C
Table 4. Recommended operating conditions
Symbol Parameter Value Unit
V
V
I
PLUS
V
O
T
A
Input voltage range VI (at V
= 0V) -12 to -1.3 V
PLUS
Positive supply range 0 to +3 V
V
=0V, VI= -12 to -3.7V -9.5 to -1.2 V
Output voltage range
PLUS
V
=+3V, VI= -9 to -3.7V -6.5 to -1.2 V
PLUS
Ambient operating temperature range -55 to +125 °C
Doc ID 12344 Rev 7 5/19
Electrical characteristics RHFL7913A
4 Electrical characteristics
TJ = 25 °C, VI = VO + 2.5 V, CI = CO = 1 µF, unless otherwise specified.
Table 5. Electrical characteristics
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
Operating input voltage IO= 1A (KPA) or 2A (SCA) -12 V
I
IO= 1A, VO = -1.2V, FLAT 16 -1.28 -1.16
I
= 1A, VO = -9V, FLAT 16 -9.6 -8.7
V
Operating output
O
voltage
ΔVO/ΔVILine regulation
ΔV
Load regulation
O/VO
Quiescent current
I
Q
ON MODE
O
I
= 2A, VO = -1.2V, SMD5C -1.28 -1.16
O
= 2A, VO = -9V, SMD5C -9.6 -8.7
I
O
= VO - 2.5V to -12V, IO = 5mA,
V
I
= 25°C
T
J
= VO - 2.5V to -12V, IO = 5mA,
V
I
= -55°C and +125°C
T
J
V
= VO - 2.5V, IO = 5mA to 400mA,
I
TJ = 25°C
V
= VO - 2.5V, IO = 5mA to 400mA
I
TJ = -55°C and +125°C
= VO - 2.5V, IO =-5mA to 1A, TJ = 25°C 0.5
V
I
V
= VO - 2.5V, IO = 5mA to 1A,
I
TJ = -55°C and +125°C
I
= 5mA, VI = VO -2.5V, TJ = 25°C -3
O
I
=-30mA, VI = VO -2.5V, TJ = 25°C -6
O
= 300mA VI = VO -2.5V,
I
O
= 25°C and +125°C
T
J
I
= 300mA VI = VO -2.5V, TJ = -55°C -20
O
= 1A VI = VO -2.5V,
I
O
= 25°C and +125°C
T
J
I
= 1A VI = VO -2.5V, TJ = -55°C -50
O
= 3A VI = VO -2.5V, V
I
O
INH
= 0,
TJ = +25°C and +125°C Only for SMD5C
-15
-30
-90
V
0.2
0.5
0.4
%
0.5
0.6
mA
I
= 2A VI = VO -2.5V, V
O
INH
= 0,
TJ = -55°C Only for SMD5C,
Quiescent current
I
Q
OFF MODE
VO = -1.2V, VI = -7V, V
> 2.3V, TJ = -55°C to +125°C
V
INH
PLUS
= +5V,
6/19 Doc ID 12344 Rev 7
TBD
1mA
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