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参数资料
| 型号： | PT3407N |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 16 W DC-DC REG PWR SUPPLY MODULE |
| 文件页数： | 8/15页 |
| 文件大小： | 332K |
| 代理商： | PT3407N |
For technical support and more information, see inside back cover or visit www.ti.com
PT3400 Series
35-W 48-V Input Isolated
DC/DC Converter
SLTS164B - JULY 2002 - REVISED OCTOBER 2002
Specifications (Unless otherwise stated, Ta =25°C, Vin =48V, Cin =0F, Io =Iomax, and Cout as required)
PT3400 Series
Characteristic
Symbol
Conditions
Min
Typ
Max
Units
Output Current
Io
Over Vin range
Vo ≤ 1.5V
0
—
16
Vo = 1.8V/2.5V
0
—
12
A
Vo =3.3V
0
—
10
Vo = 5V
0
—
7
Input Voltage Range
Vin
Over Io Range
36
48
75
VDC
Set Point Voltage Tolerance
Vo tol
—
±1±2%Vo
Temperature Variation
Regtemp
–40°
≤Ta ≤ +85°C, Io =Iomin
—
±0.8
—
%Vo
Line Regulation
Regline
Over Vin range
Vo = 5.0V
—
±5
±20
mV
Vo ≤ 3.3V
—
±5
±15
mV
Load Regulation
Regload
Over Io range
Vo = 5.0V
—
±1
±15 (1)
mV
Vo ≤ 3.3V
—
±1
±10 (1)
mV
Total Output Voltage Variation
Votot
Includes set-point, line, load,
—
±2±3%Vo
–40°
≤Ta ≤ +85°C
Efficiency
η
Io =70% of Iomax
Vo = 5V
—
91
—
Vo = 3.3V
—
90
—
Vo = 2.5V
—
89
—
Vo = 1.8V
—
85
—
%
Vo = 1.5V
—
84
—
Vo = 1.4V
—
84
—
Vo = 1.2V
—
82
—
Vo = 1V
—
80
—
Vo Ripple (pk-pk)
Vr
20MHz bandwidth
Vo ≥3.3V
—
50
—
mVpp
Vo ≤ 2.5V
—
25
—
Transient Response
ttr
0.1A/s load step, 50% to 75% Iomax
—
100
—
s
Vtr
Vo over/undershoot
—
±4
—
%Vo
Output Adjust
Vadj
Vo ≥ 2.5V
–5
—
+5
%Vo
Vo ≤ 1.8V
–0
—
+10
Over-Current Threshold
ITRIP
Vin =36V
Vo = 5.0V
—
9
—
Vo = 3.3V
—
12.5
—
Vo = 2.5V/1.8V
—
16
—
A
Vo ≤ 1.5V
—
20
—
Switching Frequencys
Over Vin range
250
300
350
kHz
Under-Voltage Lockout
UVLO
Rising
—
34
—
V
Falling
—
32
—
Enable On/Off (Pins 1, 2)
Referenced to –Vin (pin 3)
Input High Voltage
VIH
5
—
Open (2)
V
Input Low Voltage
VIL
–0.3
—
+0.4
Input Low Current
IIL
—
0.5
—
mA
Standby Input Current
Iin standbypins 1 & 3 connected
—
5
—
mA
Internal Input Capacitance
Cin
—
1.0
—
F
External Output Capacitance
Cout
Vo=1.0V
470 (3)
—
TBD
Vo≤1.8V
330 (3)
—
TBD
F
Vo≥2.5V
0
—
TBD
Isolation Voltage
Input–output/input–case
1500
—
V
Capacitance
Input to output
—
1500
—
pF
Resistance
Input to output
10
—
M
Operating Temperature Range
Ta
Over Vin range
–40 (4)
—
85 (5)
°C
Solder Reflow Temperature
Treflow
Surface temperature of module pins or case
—
215 (6)
°C
Storage Temperature
Ts
—
–40
—
125
°C
ReliabilityMTBF
Per Bellcore TR-332
2.8
—
106 Hrs
50% stress, Ta =40°C, ground benign
Mechanical Shock
—
Per Mil-Std-883D, method 2002.3,
—
TBD
—
G’s
1mS, half-sine, mounted to a fixture
Mechanical Vibration
—
Mil-Std-883D, Method 2007.2,
Vertical
—
TBD (7)
—
G’s
20-2000Hz, PCB mounted
Horizontal
—
TBD (7)
—
Weight
—
34
—
grams
Flammability—
Materials meet UL 94V-0
Notes:
(1) If the remote sense feature is not being used, –Vsense (pin 7) must be connected to –Vout (pin 8).
(2) The On/Off Enable inputs (pins 1 & 2) have internal pull-ups. They may either be connected to –Vin or left open circuit. Leaving pin 1 open-circuit and
connecting pin 2 to –Vin allows the the converter to operate when input power is applied. The maximum open-circuit voltage of the Enable pins is 10V.
(3) An output capacitor is required for proper operation for all models in which the output voltage is 1.8VDC or less. For models with an output voltage of
2.5V or higher an output capacitor is optional.
(4) For operation below 0°C, Cout must have stable characteristics. Use low ESR tantalum capacitors, or capacitors with a polymer type dielectric.
(5) See Safe Operating Area curves or contact the factory for the appropriate derating.
(6) During reflow of SMD package version do not elevate the module case, pins, or internal component temperatures above a peak of 215°C. For further
guidance refer to the application note, “Reflow Soldering Requirements for Plug-in Surface Mount Products,” (SLTA051).
(7) The case pins on through-hole pin configurations (N & A) must be soldered. For more information see the applicable package outline drawing.
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