參數(shù)資料
型號： PTN78020HAH
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源模塊
英文描述： 1-OUTPUT DC-DC REG PWR SUPPLY MODULE
封裝： DIP-7
文件頁數(shù)： 20/26頁
文件大小： 669K
代理商： PTN78020HAH
ELECTRICAL CHARACTERISTICS
www.ti.com .................................................................................................................................................. SLTS228B – DECEMBER 2004 – REVISED APRIL 2008
operating at 25
°C free-air temperature, V
I = 20 V, VO = 5 V, IO = IO (max), CI = 2.2 F, CO = 330 F (unless otherwise noted)
PTN78020W
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VI ≤24 V
0.1
6 (1)
IO
Output current
TA = 25°C, natural convection airflow
VI = 32 V
0.1
5 (1)
A
VI = 36 V
0.1
4.5 (1)
VI
Input voltage range
Over IO range
7 (2)
36 (3)
V
Set-point voltage tolerance
TA = 25°C
±2%(4)
Temperature variation
–40
°C to +85°C
±0.5%
Line regulation
Over VI range
±10
mV
VO
Load regulation
Over IO range
±10
mV
Includes set point, line, load
Total output voltage variation
±3% (4)
–40 < TA < 85°C
VI < 12 V
2.5
VI – 2
12 V
≤ VI ≤ 15.1 V
2.5
VI – 2.5
VO (adj)
Output voltage adjust range
V
15.1 V < VI ≤ 25 V
2.5
12.6
VI > 25 V
0.1
× V
I
12.6
VI = 24 V, RSET = 732 , VO = 12 V
94%
η
Efficiency
VI = 15 V, RSET = 21 k, VO = 5 V
88%
VI = 15 V, RSET = 78.7 k, VO = 3.3 V
85%
Output voltage ripple
20-MHz bandwith
1% VO
V(PP)
IO (LIM)
Current limit threshold
ΔVO = –50 mV
8.5
A
1 A/s load step from 50% to 100% IOmax
Transient response
Recovery time
200
s
VO over/undershoot
5
%VO
Input high voltage (VIH)
1
Open (5)
V
Inhibit control (pin 3)
Input low voltage (VIL)
–0.1
0.3
Input low current (IIL)
0.25
mA
II(stby)
Input standby current
Pin 3 connected to GND
17
mA
VI increasing
5.5
UVLO
Undervoltage lockout
V
VI decreasing
5.2
FS
Switching frequency
Over VI and IO ranges
440
550
660
kHz
CI
External input capacitance
Ceramic and nonceramic
2.2 (6)
F
Ceramic
300
F
CO
External output capacitance
Nonceramic
330 (7)
2,000
Equiv. series resistance (nonceramic)
10 (8)
m
Per Telcordia SR-332, 50% stress,
MTBF
Calculated reliability
5.6
106 Hr
TA = 40°C, ground benign
(1)
Above an input voltage of 24 V, the maximum output current must be derated by 125 mA per volt above 24 V.
(2)
For output voltages less than 10 V, the minimum input voltage is 7 V or (VO + 2) V, whichever is greater. For output voltages of 10 V
and higher, the minimum input voltage is (VO + 2.5 V). See the Application Information section for further guidance.
(3)
For output voltages less than 3.6 V, the maximum input voltage is 10
× V
O . See the Application Information section for further guidance.
(4)
The set-point voltage tolerance is affected by the tolerance and stability of RSET. The stated limit is unconditionally met if RSET has a
tolerance of 1% with with 100 ppm/
°C or better temperature stability.
(5)
This control pin has an internal pullup, and if left open-circuit, the module operates when input power is applied. The open-circuit voltage
is typically 1.5 V. A small, low-leakage (< 100 nA) MOSFET is recommended for control. See the Application Information section for
further guidance.
(6)
An external 2.2-F ceramic capacitor is required across the input (VI and GND) for proper operation. Locate the capacitor close to the
module.
(7)
330 F of output capacitance is required for proper operation. See the Application Information section for further guidance.
(8)
This is the typical ESR for all the electrolytic (nonceramic) capacitance. Use 17 m
as the minimum when using max-ESR values to
calculate.
Copyright 2004–2008, Texas Instruments Incorporated
3
Product Folder Link(s): PTN78020W PTN78020H
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PTN78020HAST 功能描述:DC/DC轉(zhuǎn)換器 6A Wide-In Wide Output Adj Module RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸:
PTN78020HAZ 功能描述:DC/DC轉(zhuǎn)換器 6A Wide-In Wide Output Adj Module RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸:
PTN78020HAZT 功能描述:DC/DC轉(zhuǎn)換器 6A Wide-In Wide Output Adj Module RoHS:否 制造商:Murata 產(chǎn)品: 輸出功率: 輸入電壓范圍:3.6 V to 5.5 V 輸入電壓（標(biāo)稱）: 輸出端數(shù)量:1 輸出電壓（通道 1）:3.3 V 輸出電流（通道 1）:600 mA 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體尺寸:
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