RHFL7913SCA1 [STMICROELECTRONICS]
Rad-hard adjustable negative voltage regulator; 抗辐射可调负稳压器
| 型号： | RHFL7913SCA1 |
| 厂家： | 
ST |
| 描述： | Rad-hard adjustable negative voltage regulator |
| 文件： | 总19页 (文件大小：361K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
RHFL7913A
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
SMD5C:
5-connection SMD
FLAT-16
■ Inhibit (ON/OFF) TTL-compatible control
■ Programmable output short-circuit current
limitation
■ Remote sensing operation
Description
■ Rad-hard: sustains 300 krad in Mil-1019.7 at
High & ELDRS low dose rate conditions
The RHFL7913A adjustable is a high
■ Heavy ions, SEL immune at 68 MeV/cm²/mg
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.
14
2
LET ions; able to Sustains 2x10 protons/cm
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.
August 2008
Rev 4
1/19
www.st.com
19
Contents
RHFL7913A
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
ADJ pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Inhibit ON-OFF control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Overtemperature protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Overcurrent protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
OCM pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Alternates to . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6
Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6.1
Remote sensing operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7
Die information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
8
9
10
11
2/19
RHFL7913A
1
Diagram
Diagram
Figure 1.
Block diagram
3/19
Pin configuration
RHFL7913A
2
Pin configuration
Figure 2.
Pin configuration (top view for FLAT-16, bottom view for SMD5C)
SMD5C
FLAT-16
Table 1.
Pin description
Pin n°
FLAT-16
SMD5C
DSCC Part Ident.
5962-02532
5962-02532
VI, Negative Input
VI, Negative Input
1
2
3
VI, Negative Input
VI, Negative Input
ISC
VI, Negative Output
ADJ
Inhibit
GND
4
5
OCM
VPLUS, Positive Supply
6
7
GND
N.C.
N.C.
GND
Inhibit
ADJ
8
9
10
11
12
13
14
N.C.
VO, Negative Output
VO, Negative Output
VO, Negative Output
15
16
4/19
RHFL7913A
Maximum ratings
3
Maximum ratings
(1)
Table 2.
Symbol
Maximum operating ratings
Parameter
Value
-12
+5
Unit
VI
VPLUS
VI
DC input voltage |VIN – VPLUS|
Logical block supply voltage V(+)-V(GND), unless grounded
DC voltage, VIN–GND, VPLUS= 0V
-12
-9
V
VI
DC voltage, VIN–GND, VPLUS=+3V
VO
DC output voltage range
-9 to -1.20
RHFL7913KPA
Output current
2
IOUT
A
RHFL7913SCA
3
15
RHFL7913KPA
TC = 25 °C power dissipation
RHFL7913SCA
PD
W
15
TSTG
TOP
Storage temperature range
-65 to +150
°C
Operating junction temperature range
Electrostatic discharge capability
-55 to +150
Class 3
ESD
1. Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under
these conditions is not implied.
Table 3.
Symbol
Thermal data
Parameter
Value
Unit
RthJC
Thermal resistance junction-case, FLAT-16 and SMD5C
Maximum soldering temperature, 10 sec.
8.3
°C/W
°C
TSOLD
300
Table 4.
Symbol
Recommended operating conditions
Parameter
Value
Unit
V
VI
Input voltage range VI (at VPLUS= 0V)
Positive supply range
-12 to -1.3
0 to +3
VPLUS
V
V
PLUS=0V, VI= -12 to -3.7V
PLUS=+3V, VI= -9 to -3.7V
-9.5 to -1.2
-6.5 to -1.2
-55 to +125
V
VO
TA
Output voltage range
V
V
Ambient operating temperature range
°C
5/19
Electrical characteristics
RHFL7913A
4
Electrical characteristics
Table 5.
Electrical characteristics
(T = 25 °C, V = V +2.5 V, C = C = 1 µF, unless otherwise specified)
J
I
O
I
O
Symbol
Parameter
Test conditions
Min.
-12
Typ.
Max.
Unit
VI
IO= 1A (KPA) or 2A (SCA)
IO= 1A, VO = -1.2V, FLAT 16
IO= 1A, VO = -9V, FLAT 16
IO= 2A, VO = -1.2V, SMD5C
IO= 2A, VO = -9V, SMD5C
Operating input voltage
V
-1.28
-9.6
-1.16
-8.7
Operating output
voltage
VO
V
-1.28
-9.6
-1.16
-8.7
VI = VO - 2.5V to -12V, IO = 5mA,
TJ = 25°C
0.2
0.5
0.4
ΔVO/ΔVI
Line regulation
VI = VO - 2.5V to -12V, IO = 5mA,
TJ = -55°C and +125°C
VI = VO - 2.5V, IO = 5mA to 400mA,
TJ = 25°C
%
VI = VO - 2.5V, IO = 5mA to 400mA
TJ = -55°C and +125°C
0.5
0.5
0.6
ΔVO/VO
Load regulation
VI = VO - 2.5V, IO =-5mA to 1A, TJ = 25°C
VI = VO - 2.5V, IO = 5mA to 1A,
TJ = -55°C and +125°C
I
I
I
O = 5mA, VI = VO -2.5V, TJ = 25°C
O =-30mA, VI = VO -2.5V, TJ = 25°C
O = 300mA VI = VO -2.5V,
-3
-6
-15
-20
-30
-50
-90
TJ = 25°C and +125°C
IO = 300mA VI = VO -2.5V, TJ = -55°C
Quiescent current
ON MODE
I
O = 1A VI = VO -2.5V,
IQ
mA
TJ = 25°C and +125°C
IO = 1A VI = VO -2.5V, TJ = -55°C
I
O = 3A VI = VO -2.5V, VINH= 0,
TJ = +25°C and +125°C Only for SMD5C
IO = 2A VI = VO -2.5V, VINH= 0,
TJ = -55°C Only for SMD5C,
TBD
VO = -1.2V, VI = -7V, VPLUS = +5V,
VINH > 2.3V, TJ = -55°C to +125°C
Quiescent current
OFF MODE
IQ
1
mA
6/19
RHFL7913A
Electrical characteristics
Table 5.
Symbol
Electrical characteristics (continued)
(T = 25 °C, V = V +2.5 V, C = C = 1 µF, unless otherwise specified)
J
I
O
I
O
Parameter
Test conditions
Min.
Typ.
Max.
Unit
I
I
O = 400mA VO =-2.5V to -9V, TJ = 25°C
O = 400mA VO =-2.5V to -9V,
-450
-500
-750
-800
TJ = -55°C and +125°C
VD
Dropout voltage
mV
IO = 1A VO =-2.5V to -9V, TJ = 25°C
I
O = 1A VO =-2.5V to -9V,
TJ = -55°C and +125°C
VI = -5.5V, VPLUS = 5V, VINH = 5V,
TJ = 25°C
0.75
1
(1)
VPLUS Current
mA
dB
µs
V
IPLUS
VI= -5.5V, VPLUS = +5V, VINH = 5V
TJ = -55°C and +125°C
VI = VO – 2.5V, IO = 5mA, F = 120Hz
VI = VO – 2.5V, IO= 5mA, F = 33kHz
60
20
Supply voltage
rejection
SVR (1)
VINH < 0.8V, VPLUS = 5V, VI = VO -2.5V
Inhibit propagation
delay
(1)
20
tPLH
IO = 400mA
VINH >2.3V, VPLUS = 5V, VI = VO -2.5V
IO = 400mA
Inhibit propagation
delay
(1)
100
0.8
tPHL
VINH(ON)
VINH(OFF)
ISH
VI = -7V VPLUS= +5V IO = 5mA
TJ = -55°C to 125°C
Inhibit voltage
2.3
VINH=5V
Shutdown input current
OCM pin voltage
15
0.38
40
µA
V
VOCM
en
Sinked IOCM = 10mA, active low
f = 10Hz to 100kHz IO = 5mA to 2A
Output noise voltage
µVrms
1. These values are guaranteed by design. For each application it’s strongly recommended to comply with the maximum
current limit of the package used.
7/19
Device description
RHFL7913A
5
Device description
The RHFL7913A adjustable contains a NPN-type power element controlled by signal
resulting from amplified comparison between internal temperature compensated band-gap
cell and the fraction of the desired output voltage value, generated by an external resistor
divider bridge. The NPN structure allows access to lower drop out levels because its base
current can be routed to ground pin and not to output. To control and monitor the device
from / to the external logic world – usually operating in positive voltage area – a dedicated
logic interface block (INHIBIT and OCM functions) has been implemented with +3 V to +5 V
supplied line V(+). In case V(+) = 0 V, inhibit and OCM functions are not available: In this
condition, INHIBIT function is ON and OCM pin is “no care”. The device is internally
protected by several blocks.
5.1
5.2
5.3
ADJ pin
The load voltage feed back comes from an external divider resistor bridge middle point to
ADJ pin established between load terminals.
Inhibit ON-OFF control
When INHIBIT pin is TTL-high (positive), the device switches off current and voltage output.
The device is ON when INHIBIT pin is set TTL-low.
Overtemperature protection
A temperature detector internally monitors power element junction temperature. The device
goes OFF circa 165 °-175 °C are reached, and returns ON when circa 100 °C. When
internal temperature detector reaches 170 °C, the active power element can be at 225 °C:
Device reliability cannot be granted during extensive operation duration with these
conditions.
5.4
Overcurrent protection
I
pin. An internal non-fold back short-circuit limitation is set with I
> 4 A (V is 0 V).
SHORT O
SC
This value can be downward modified by an external resistor connected between I and V
SC
I
pins, with a typical value range of 10 kΩ to 200 kΩ. To keep excellent V regulation, it is
O
necessary to set I
1.6 times greater than the maximum desired application I . When
SHORT
O
I reaches I
– 300 mA, the current limitor overrules regulation and V starts to drop
O
SHORT
O
and OCM flag is risen. When no current limitation adjustment is required, I pin shall be left
SC
unbiased (as it is in 3 pin packages).
5.5
OCM pin
Goes low when current limitor starts to be active, otherwise V
= V (+). It is bufferized
OCM
and can sink 10 mA. OCM pin is internally pulled-up by a 50 kΩ resistor. Can left open when
V (+) = 0.
8/19
RHFL7913A
Device description
5.6
Alternates to
RHFL7913A is recommended to replace all industry negative regulators due to its
exceptional radiation performances. To replace 3-terminal industry devices, use customized
RHFL7913 fixed voltage versions.
9/19
Application information
RHFL7913A
6
Application information
Adjusting output voltage: R1 resistor must be connected between V and ADJ pins. R2
O
resistor must be connected between ADJ and GND pins. Resistor values can be derived
from the following formula:
V = V
(1 + R1/R2) with V
= -1.20 V
O
ADJ
ADJ
To access all RHFL7913A adjustable functionality, V (+) shall be set at 3.0 V (max 5 V). As a
consequence, V (-) cannot be greater than –9.0 V (resp. –7 V) due to –12 V maximum
I
operation rating.
The device is functional as soon as V - V voltage difference is slightly above power
I
O
element saturation voltage. The adjustable pin to Ground resistor shall not be greater than
10 kΩ to make output feedback error be below 0.2%. A minimum 0.5 mA I is necessary to
O
set to ensure perfect “no-load” regulation. It can be wise to dissipate this current into the
divider bridge resistor.
All available V pins shall always be PCB interconnected, the same for all available V pins,
I
O
otherwise device stability and reliability cannot be granted. The INHIBIT function switches
off output current in an electronic way, is very quickly. According to Lenz’ Law, external
circuitry reacts with –LdI/dt terms which can be of high amplitude in case some series-
inductance exists. Effect would be large transient voltage developed on both device
terminals. External Schottky diodes set on V and V may prevent voltage excursions
I
O
beyond max ratings. In the worst case, a 14 V Zener diode shall protect the device input. In
case of capacitive load, a input-output protection diode can be necessary to prevent V to
O
be greater than V during transient operation.
I
The device has been designed for high stability and low drop out operation: minimum 1 µF
input and output tantalum capacitors are therefore mandatory. Typical industry PCB design
practices 10 µF capacitors values are acceptable. Capacitor ESR range is from 0.020 Ω to
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 shall be
considered relatively to capacitors. They shall be connected as close as possible form
device terminals. As some tantalum capacitors may permanently fail when submitted to high
charge-up surge currents, it is recommended to decouple them with 470 nF polyester or
ceramic capacitors.
RHFL7913A adjustable being manufactured with very high speed bipolar technology (6 GHz
f transistors), the PCB layout shall be performed with unprecedented care, very low
T
inductance, low mutually coupling lines, otherwise high frequency parasitic signals may be
picked-up by the Device resulting into system self-oscillation. In difficult high current
circumstances (coming from PCB layout) a 470 nF polyester capacitor connected between
V and ADJ pin increases stability margins. Benefit is SVR performances extended to far
O
higher frequencies.
10/19
RHFL7913A
Application information
6.1
Remote sensing operation
When load is physically far away from device output, the adjustable line can be set as a
kelvin sense line by implementing the divider resistor bridge as close as possible form
device, with a decoupling capacitor. The adjust pin kelvin sense line (to be not coupled with
power line) picks-up load voltage (load also locally decoupled with a capacitor). This layout
eliminates ohmic drop in load power wire. Similarly, by taking advantage of two separate
ground terminals: power ground pin shall be directly connected to load ground terminal
which is also the system ground, device signal ground shall be separately connected to load
ground terminal by another kelvin line: In this way, ground ohmic errors are minimized
because the only current flowing into device signal ground pin kelvin line is device Iq (a
matter of a few mA).
11/19
Die information
RHFL7913A
7
Die information
RHFL7913A adjustable is also available in die form. Space dice are electrically tested by
STMicroelectronics in such a way that, when mounted in proper thermal and electrical
substrate, they are in full compliance with equivalent packaged device:
DIE physical dimensions.
DIE size: 110 mils x 166 mils
DIE thickness: 375 µm +/-25 µm (14.8 mils +/- 1 mil)
Pad size:
V , V pads: 245 µm x 544 µm
I
O
Control pads: 184 µm x 184 µm
Interface materials
Top Metallization: Al/Si/Cu 1.05 µm +/- 0.15 µm
Backside metallization: None
Glassivation
Type: P.Vapox + Nitride
Thickness: 0.6 µm +/- 0.1µm + 0.6µm +/-0.08 µm
Substrate: Silicon (connected to V = V
)
minus
I
The SENSE pad is layout on the die but is not electrically connected to the IC and shall be
left non-bonded during hybrid bonding.
Figure 3.
DIE size
12/19
RHFL7913A
Package mechanical data
8
Package mechanical data
®
In order to meet environmental requirements, ST offers these devices in ECOPACK
packages. These packages have a lead-free second level interconnect. The category of
second Level Interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com.
13/19
Package mechanical data
RHFL7913A
FLAT-16 (MIL-STD-1835) mechanical data
mm.
Typ.
inch.
Typ.
Dim.
Min.
Max.
Min.
Max.
A
b
2.16
2.72
0.085
0.107
0.43
0.13
9.91
6.91
4.32
0.017
0.005
0.390
0.272
0.170
c
D
E
E2
E3
e
0.76
0.030
1.27
6.72
0.050
0.265
L
Q
S1
0.66
1.14
0.026
0.005
0.045
0.13
b
c
e
L
E3
16
9
E
E2
1
8
E3
L
Q
S1
A
D
7450901A
14/19
RHFL7913A
Package mechanical data
SMD5C mechanical data
mm.
inch.
Dim.
Min.
Typ.
Max.
Min.
Typ.
Max.
A
A1
b
2.84
3.00
3.15
0.112
0.118
0.124
0.25
7.13
4.95
2.28
2.92
13.71
0.76
7.39
0.38
7.26
5.08
2.41
3.05
13.84
0.51
7.39
5.21
2.54
3.18
13.97
0.010
0.281
0.195
0.090
0.115
0.540
0.030
0.291
0.015
0.286
0.200
0.095
0.120
0.545
0.020
0.291
0.205
0.100
0.125
0.550
b1
b2
b3
D
D1
E
7.52
7.65
0.296
0.301
e
1.91
0.075
7924296B
15/19
Packaging
RHFL7913A
9
Packaging
RHFL7913A adjustable is available in high thermal dissipation 16 pin hermetic FLAT
package, which bottom flange is metallized to allow direct soldering to heat sink (efficient
thermal conductivity). It is also available in SMD5C hermetic ceramic package.
16/19
RHFL7913A
Order codes
10
Order codes
Table 6.
Die
Order codes
FLAT-16
Terminal
finish
SMD5C
Quality level
RHFL7913KPA1
RHFL7913KPA2
GOLD
GOLD
GOLD
SOLDER
GOLD
GOLD
GOLD
EM1
EM2= EM1 + 48hours BI
RHFL7913KPA-01V
RHFL7913KPA-02V
QML-V
QML-V
RHFL7913SCA1
RHFL7913SCA2
EM1
EM2= EM1 + 48hours BI
RHFL7913SCA-03V
L7913ADIE2S
L7913ADIE2V
EM1 die
QML-V
Note:
EM1: Engineering parts, full temperature range, flight packages, no burn-in
EM2: Same as above but with burn-in, used in Satellite EQMs
Table 7.
Part number - SMD equivalent
ST part number
SMD part number
RHFL7913KPA-01V
RHFL7913KPA-02V
RHFL7913SCA-03V
L7913ADIE2V
5962F0253201VXC
5962F0253201VXA
5962F0253202VYC
5962F0253201V9A
Table 8.
Environmental characteristics
Parameter
Conditions
Value
Unit
Output voltage thermal drift
Output voltage radiation drift
Output voltage radiation drift
-55 °C to +125 °C
40
8
ppm/°C
ppm/krad
ppm/krad
From 0 kRad to 300k Rad at 0.55rd/sec
From 0 kRad to 300 kRad, MIL1019.5
6
17/19
Revision history
RHFL7913A
11
Revision history
Table 9.
Document revision history
Revision
Date
Changes
16-May-2006
22-Aug-2006
19-Dec-2007
1
2
3
First release.
The pin description for SMD5C on table 1 updated.
Modified: Table 6.
Modified: Features on page 1, Table 1 on page 4, the VI value Table 4 on
page 5, Table 5 on page 6 and Section 6 on page 10.
26-Aug-2008
4
18/19
RHFL7913A
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