PT78NR103 [TI]
Negative output from positive input;型号: | PT78NR103 |
厂家: | TEXAS INSTRUMENTS |
描述: | Negative output from positive input |
文件: | 总6页 (文件大小:201K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
PT78NR100 Series
1 Amp Plus to Minus Voltage
Integrated Switching Regulator
SLTS058B
(Revised 8/31/2000)
• Negative output from positive input
• Wide Input Range
• Self-Contained Inductor
• Short Circuit Protection
• Over-Temperature Protection
• Fast Transient Response
The PT78NR100 Series creates a
negative output voltage from a posi-
tive input voltage greater than 7V.
These easy-to-use, 3-terminal, Inte-
grated Switching Regulators (ISRs)
have maximum output power of 5
watts and a negative output voltage
that is laser trimmed. They also have
excellent line and load regulation.
Pin-Out Information
Ordering Information
Pin Function
PT 78NR1
XX Y
1
2
3
+V
in
Standard Application
-Vout
Output Voltage
Package Suffix
GND
03 = -3.0 Volts
05 = -5.0 Volts
52 = -5.2 Volts
06 = -6.0 Volts
07 = -7.0 Volts
08 = -8.0 Volts
09 = -9.0 Volts
10 = -10.0 Volts
12 = -12.0 Volts
14 = -13.9 Volts
15 = -15.0 Volts
V = Vertical Mount
S = Surface Mount
H = Horizontal
Mount
Vin
-Vout
COM
1
2
PT78NR100
3
+
C2
C1
COM
+
C1 = Required 100µF electrolytic (1)
C2 = Required 100µF electrolytic (1)
Pkg Style 500
Specifications
PT78NR100 SERIES
Typ Max
Characteristics
(T = 25°C unless noted)
a
Symbols
Conditions
Min
Units
Output Current
Io
Over Vin range Vo=-5V
Vo=-6V
0.05 (2)
—
—
—
—
—
—
1.00
0.8
(2)
0.05
(2)
Vo=-7, -8, -9V
0.05
0.55
0.5
A
Vo=-10V
0.05 (2)
(2)
Vo=-12V
0.05
0.40
0.30
(2)
Vo=-13.9, -15V
0.05
Short Circuit Current
Inrush Current
Isc
Vin=10V
—
4×Imax
—
Apk
Iir
tir
Vin=10V
—
—
4
—
—
A
On start-up
0.5
mSec
Input Voltage Range
Vin
0.1 ≤ Io ≤ Imax
Vo=-5V
7
7
7
7
—
—
—
—
25
21
18
15
V
V
V
V
Vo=-6, -7, -8, -9V
Vo=-10, -12V
Vo=-13.9, -15V
Output Voltage Tolerance
∆Vo
Over Vin range
—
±1.0
±3.0
%Vo
Ta=-20°C to +70°C
Over Vin range
0.1 ≤ Io ≤ Imax
Line Regulation
Load Regulation
Vo Ripple/Noise
Regline
Regload
Vn
—
—
—
±0.5
±0.5
±2
±1.0
±1.0
—
%Vo
%Vo
%Vo
Vin=10V, Io=Imax
Transient Response
(with 100µF output cap)
ttr
50% load change
Vo over/undershoot
—
—
100
5.0
250
—
µSec
%Vo
Efficiency
η
Vin=10V, Io=0.5×Imax, Vo = -5V
—
75
—
%
Switching Frequency
ƒo
Ta
Over Vin and Io ranges
600
650
700
kHz
Absolute Maximum
Operating Temperaturte Range
Free Air Convection, (40-60LFM)
Over Vin Range
-40
—
+85 (3)
°C
Thermal Resistance
Storage Temperature
Mechanical Shock
θja
Ts
—
—
Free Air Convection, (40-60LFM)
—
—
45
—
°C/W
°C
-40
—
—
+125
—
Per Mil-STD-883D, Method 2002.3
500
G’s
Mechanical Vibration
Per Mil-STD-883D, Method 2007.2,
20-2000 Hz, soldered in a PC board
—
—
—
5
G’s
Weight
—
—
6.5
Grams
Notes: (1) The PT78NR100 Series requires a 100µF electrolytic or tantalum capacitor at both the input and output for proper operation in all applications. The input
capacitor, C1 must have a ripple current rating ≥600 mArms, and an ESR ≤0.2Ω.
(2) The ISR will operate down to no load with reduced specifications.
(3) See Thermal Derating chart.
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
Typical Characteristics
PT78NR100 Series
1 Amp Plus to Minus Voltage
Integrated Switching Regulator
PT78NR105 -5.0 VDC (See Note A)
PT78NR109 -9.0 VDC (See Note A)
PT78NR112 -12.0 VDC (See Note A)
Efficiency vs Output Current
Efficiency vs Output Current
Efficiency vs Output Current
100
90
100
100
90
80
70
60
50
40
90
Vin
VIN
80
80
Vin
7.0V
12.0V
15.0V
20.0V
25.0V
7.0V
9.0V
7.0V
70
60
50
40
70
12.0V
15.0V
18.0V
12.0V
15.0V
18.0V
21.0V
60
50
40
0
0.2
0.4
0.6
0.8
1
0
0.1
0.2
0.3
0.4
0.5
0
0.1
0.2
0.3
0.4
Iout-(Amps)
Iout-(Amps)
Iout-(Amps)
Ripple vs Output Current
Ripple vs Output Current
Ripple vs Output Current
200
160
120
80
200
160
120
80
250
200
150
100
50
Vin
Vin
21.0V
VIN
25.0V
18.0V
15.0V
12.0V
9.0V
20.0V
15.0V
12.0V
7.0V
18.0V
15.0V
12.0V
7.0V
7.0V
40
40
0
0
0
0.2
0.4
0.6
0.8
1
0
0
0.1
0.2
0.3
0.4
0
0.1
0.2
0.3
0.4
0.5
Iout-(Amps)
Iout-(Amps)
Iout-(Amps)
Thermal Derating (T ) (See Note B)
Thermal Derating (T ) (See Note B)
Thermal Derating (T ) (See Note B)
a
a
a
0.4
0.35
0.3
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0.6
0.5
0.4
0.3
0.2
0.1
0
60°C
70°C
70°C
70°C
85°C
0.25
0.2
85°C
85°C
0.15
0.1
0.05
0
7
10
13
16
19
22
25
7
11
15
19
7
10
13
16
19
Vin-(Volts)
Vin-(Volts)
Vin-(Volts)
Power Dissipation vs Output Current
Power Dissipation vs Output Current
Power Dissipation vs Output Current
1.6
1.4
1.2
1
2
1.8
1.6
1.4
1.2
1
1.6
1.4
1.2
1
Vin
Vin
21.0V
VIN
25.0V
18.0V
15.0V
12.0V
9.0V
20.0V
15.0V
12.0V
7.0V
18.0V
15.0V
12.0V
7.0V
0.8
0.6
0.4
0.2
0
0.8
0.6
0.4
0.2
0
0.8
0.6
0.4
0.2
0
7.0V
0
0.1
0.2
0.3
0.4
0.5
0
0.2
0.4
0.6
0.8
1
0
0.1
0.2
0.3
0.4
Iout-(Amps)
Iout-(Amps)
Iout-(Amps)
Note A: All data listed in the above graphs, except for derating data, has been developed from actual products tested at 25°C. This data is considered typical data for the ISR.
Note B: Thermal derating graphs are developed in free air convection cooling of 40-60 LFM. (See Thermal Application Notes.)
For technical support and more information, see inside back cover or visit www.ti.com/powertrends
PACKAGE OPTION ADDENDUM
www.ti.com
13-May-2005
PACKAGING INFORMATION
Orderable Device
PT78NR103H
PT78NR103S
PT78NR103ST
PT78NR103V
PT78NR105H
PT78NR105S
PT78NR105ST
PT78NR105V
PT78NR106H
PT78NR106S
PT78NR106ST
PT78NR106V
PT78NR107H
PT78NR107S
PT78NR107ST
PT78NR107V
PT78NR108H
PT78NR108S
PT78NR108ST
PT78NR108V
PT78NR109H
PT78NR109S
PT78NR109ST
PT78NR109V
PT78NR110H
Status (1)
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
Drawing
SIP MOD
ULE
EFA
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
25
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
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Level-1-215C-UNLIM
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Level-1-215C-UNLIM
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Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
SIP MOD
ULE
EFC
EFC
EFD
EFA
EFC
EFC
EFD
EFA
EFC
EFC
EFD
EFA
EFC
EFC
EFD
EFA
EFC
EFC
EFD
EFA
EFC
EFC
EFD
EFA
25
SIP MOD
ULE
200
25
SIP MOD
ULE
SIP MOD
ULE
25
SIP MOD
ULE
25
SIP MOD
ULE
200
25
SIP MOD
ULE
SIP MOD
ULE
25
SIP MOD
ULE
25
SIP MOD
ULE
200
25
SIP MOD
ULE
SIP MOD
ULE
25
SIP MOD
ULE
25
SIP MOD
ULE
200
25
SIP MOD
ULE
SIP MOD
ULE
25
SIP MOD
ULE
25
SIP MOD
ULE
200
25
SIP MOD
ULE
SIP MOD
ULE
25
SIP MOD
ULE
25
SIP MOD
ULE
200
25
SIP MOD
ULE
SIP MOD
ULE
25
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
13-May-2005
Orderable Device
PT78NR110S
PT78NR110ST
PT78NR110V
PT78NR112H
PT78NR112S
PT78NR112ST
PT78NR112V
PT78NR114H
PT78NR114S
PT78NR114ST
PT78NR114V
PT78NR115H
PT78NR115S
PT78NR115ST
PT78NR115V
PT78NR152H
PT78NR152S
PT78NR152ST
PT78NR152V
Status (1)
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
Package Package
Pins Package Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
Qty
Type
Drawing
SIP MOD
ULE
EFC
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
25
200
25
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
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Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
Level-1-215C-UNLIM
SIP MOD
ULE
EFC
EFD
EFA
EFC
EFC
EFD
EFA
EFC
EFC
EFD
EFA
EFC
EFC
EFD
EFA
EFC
EFC
EFD
SIP MOD
ULE
SIP MOD
ULE
25
SIP MOD
ULE
25
SIP MOD
ULE
200
25
SIP MOD
ULE
SIP MOD
ULE
25
SIP MOD
ULE
25
SIP MOD
ULE
200
25
SIP MOD
ULE
SIP MOD
ULE
25
SIP MOD
ULE
25
SIP MOD
ULE
200
25
SIP MOD
ULE
SIP MOD
ULE
25
SIP MOD
ULE
25
SIP MOD
ULE
200
25
SIP MOD
ULE
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan
-
The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS
&
no Sb/Br)
-
please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
Addendum-Page 2
PACKAGE OPTION ADDENDUM
www.ti.com
13-May-2005
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
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to Customer on an annual basis.
Addendum-Page 3
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