RHFL7913SCA-01V [STMICROELECTRONICS]
1.2 V-9.5V ADJUSTABLE NEGATIVE LDO REGULATOR, 0.8V DROPOUT, CBCC5, HERMETIC SEALED. CERAMIC, SMD-5;型号: | RHFL7913SCA-01V |
厂家: | ST |
描述: | 1.2 V-9.5V ADJUSTABLE NEGATIVE LDO REGULATOR, 0.8V DROPOUT, CBCC5, HERMETIC SEALED. CERAMIC, SMD-5 输出元件 调节器 |
文件: | 总18页 (文件大小:361K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
RHFL7913
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-1019.6 at
High & ELDRS low dose rate conditions
The RHFL7913 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.
■ Heavy ions, SEL and SEU immune; able to
14
2
14
Sustains 2x10 protons/cm and 5x10
2
neutrons/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
RHFL7913 adjustable analog functions are
biased at negative voltages with respect of ground
pin. The device is QML-V qualified with SMD
5962-02532.
December 2007
Rev 3
1/18
www.st.com
18
Contents
RHFL7913
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7
Die information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
8
9
10
2/18
RHFL7913
1
Diagram
Diagram
Figure 1.
Block diagram
3/18
Pin configuration
RHFL7913
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
TBD
DSCC Part Ident.
TBD
VI, Negative Input
1
2
3
TBD
VI, Negative Input
VI, Negative Input
ISC
TBD
TBD
4
5
TBD
OCM
TBD
VPLUS, Positive Supply
6
7
GND
N.C.
8
9
N.C.
INHIBIT
10
11
12
13
ADJ
N.C.
VO, Negative Output
VO, Negative Output
VO, Negative Output
INHIBIT
14
15
16
4/18
RHFL7913
Maximum ratings
3
Maximum ratings
Table 2.
Symbol
Maximum operating ratings (see Note:)
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
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.
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 -3.7
0 to +3
VPLUS
V
VPLUS=0V, VI= -12 to -3.7V
PLUS=+3V,VI= -9 to -3.7V
Ambient operating temperature range
-9.5 to -1.2
-6.5 to -1.2
-55 to +125
V
VO
TA
Output voltage range
V
V
°C
5/18
Electrical characteristics
RHFL7913
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
-3.7
-1.16
-8.7
V
-1.28
-9.6
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
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
-30
TJ = 25°C and +125°C
IO = 1A VI = VO -2.5V, TJ = -55°C
-50
I
O = 2A VI = VO -2.5V, VINH= 0,
TBD
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
6/18
RHFL7913
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.
7/18
Device description
RHFL7913
5
Device description
The RHFL7913 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 kΩresistor. Can left open when
V (+) = 0.
8/18
RHFL7913
Device description
5.6
Alternates to
RHFL7913 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.
9/18
Application information
RHFL7913
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 RHFL7913 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 may prevent voltage excursions beyond max ratings. In
the worst case, a 14 V Zener diode shall protect the device input. In case of inductive load, a
input-output protection diode can be necessary to prevent V to be greater than V during
O
I
transient operation.
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 0.5 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 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
capacitors.
RHFL7913 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.
10/18
RHFL7913
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).
11/18
Die information
RHFL7913
7
Die information
RHFL7913 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
12/18
RHFL7913
Die information
FLAT-16 (MIL-STD-1835) mechanical data
mm.
inch.
Typ.
Dim.
Min.
Typ.
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
13/18
Die information
RHFL7913
SMD5C mechanical data
mm.
inch.
Typ.
Dim.
Min.
Typ.
Max.
Min.
Max.
A
A1
b
2.84
3.00
3.15
0.112
0.118
0.015
0.286
0.200
0.095
0.120
0.545
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
0.020
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
14/18
RHFL7913
Packaging
8
Packaging
RHFL7913 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.
15/18
Order codes
RHFL7913
9
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
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
16/18
RHFL7913
Revision history
10
Revision history
Table 9.
Date
Document revision history
Revision
Changes
16-May-2006
22-Aug-2006
19-Dec-2007
1
2
3
First release.
The pin description for SMD5C on table 1 has been updated.
Modified: Table 6.
17/18
RHFL7913
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