參數(shù)資料
型號(hào)： PTMA402050P2AZ
廠商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 電源模塊
英文描述： 1-OUTPUT 10 W DC-DC REG PWR SUPPLY MODULE
封裝： ROHS COMPLIANT, DIP-6
文件頁(yè)數(shù)： 23/35頁(yè)
文件大小： 1867K
代理商： PTMA402050P2AZ
www.ti.com
PTMA403033 ELECTRICAL CHARACTERISTICS
SLTS259B – FEBRUARY 2006 – REVISED MAY 2007
T
A = 25°C, VI = 48 V, VO = 3.3 V, CI = 0 F, CO = 0 F, and IO = IOmax (Unless otherwise stated)
PTMA403033
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
MAX
PO
Output power
Over VI range
10
W
IO
Output current
Over VI range
0.1 (1)
3 (2)
A
ILIM
Current Limit Threshold
Shutdown, followed by autorecovery
4.25
A
VI
Input voltage range
Over IO range
36
48
75
V
Set-point voltage tolerance
±2 (3)
%VO
Temperature variation
-40
°C ≤ T
A ≤ 85°C
±1
%VO
Line regulation
Over VI range
±3
mV
VO
Load regulation
Over IO range
±10
mV
Total output voltage variation
Includes set-point, line, load, –40
°C ≤ T
A ≤ 85°C
3
5 (3)
%VO
Trim adjust range
Over VI range
3.0
3.6
V
η
Efficiency
PO = POmax
82%
VO Ripple (peak-to-peak)
20-MHz bandwidth
65
mVpp
0.1 A/
s load step,
Recovery time
750
s
Transient response
50% to 100%
VO over/undershoot
±150
mV
IOmax
Referenced to VI–
Input high voltage (VIH)
4.5
Open (4)
V
Output enable input (pin 3)
Input low voltage (VIL)
–0.2
0.8
Input low current (IIL)
1
mA
Standby input current
Pin 3 open
8
mA
UVLO
Undervoltage lockout
32
34
V
OVP
Output Overvoltage Protection
3.7
5.4
V
S
Switching frequency
Over VI and IO ranges (non-Sync option)
250
300
350
kHz
Free-running
180
215 (5)
250
Sync switching frequency
kHz
Synchronization range
250 (5)
350 (5)
SYNC
high-level input voltage
3.5
6
V
low-level input voltage
–0.3
0.5
V
clock duty cycle
25
75
%
CI
External input capacitance
0
47
F
CO
External output capacitance
0
47 (6)
1000
F
VISO
Isolation voltage
1,500
Vdc
CISO
Isolation capacitance
Primary-Secondary
1,100
pF
RISO
Isolation resistance
10
M
(1)
The converter requires a minimum load current for proper operation. However, the converter is not damaged when operated under a
no-load condition.
(2)
See temperature derating curves for safe operating area (SOA), to determine output current derating at elevated ambient temperatures.
(3)
The set-point voltage tolerance is affected by the tolerance and stability of RTRIM. The stated limit is unconditionally met if RTRIM has a
tolerance of
≤1%, with ≤100 ppm/°C temperature stability.
(4)
The Enable input (pin 3) has an internal pullup resistor. Do not place an external pullup resistor on this input pin. If the enable feature is
not used, for a positive enable device this input should be left open circuit and a negative enable device should be permanently
connected to VI– (pin 2). A discrete MOSFET or bipolar transistor is recommended for the enable control. The open-circuit voltage is
typically less than 5 V. See the Application Information for a more detailed description.
(5)
A device with the synchronization option has a reduced switching frequency of 215 kHz typical. The synchronization frequency can only
be adjusted to a higher frequency, up to 350 kHz maximum.
(6)
An output capacitor is not required for proper operation. However, additional capacitance at the load improves the transient response.
3
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PTMA403033 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-W, 36-V to 75-V INPUT, 1500-V ISOLATION, DC/DC CONVERTERS
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PTMA403033A1AS 功能描述:DC/DC轉(zhuǎn)換器 10W 36V-75Vin 1500V Iso DC-DC Converter 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:
PTMA403033A1AST 功能描述:DC/DC轉(zhuǎn)換器 10W 36V-75Vin 1500V Iso DC-DC Converter 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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