參數(shù)資料
型號(hào)： PTB78560AAH
廠商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 電源模塊
英文描述： 1-OUTPUT 30 W DC-DC REG PWR SUPPLY MODULE
封裝： ROHS COMPLIANT, DIP-11
文件頁(yè)數(shù)： 22/27頁(yè)
文件大?。?/td> 643K
代理商： PTB78560AAH
www.ti.com
PTB78560B ELECTRICAL CHARACTERISTICS
SLTS249 – JUNE 2005
(Unless otherwise stated, T
A = 25°C, VI = 24 V, VO = 3.3 V, CO = 330 F, and IO = IOmax)
PTB78560B
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
MAX
Over VI range
IO Bus
0.25 (1)
8 (2)
IO
Output current
IO Seq
0
4 (3)
A
Sum total, (IO Bus + IO Seq)
0.25
8
VI
Input voltage range
Over IO range
18
24
60
V
Set-point voltage tolerance
±1 (4)
%VO
Temperature variation
-40°C
≤ T
A ≤ 85°C
±0.5
%VO
Line regulation
Over VI range
±7
±33
mV
VO
Load regulation
Over IO range
±13
±33
mV
Total output voltage variation
Includes set-point, line, load, –40°C
≤ T
A ≤ 85°C
±2
±3 (4)
%VO
Adjust range
Over VI range
1.8
3.6
V
RSET = 5.36 k, VO = 3.3 V
80%
η
Efficiency
RSET = 40.2 k, VO = 2.5 V
77%
RSET = open , VO = 1.8 V
73%
VO Ripple (peak-to-peak)
20-MHz bandwidth
50
mVpp
0.1 A/s load step,
Recovery time
100
s
50% to 100%
Transient response
IOmax , CO = 330
VO over/undershoot
±150
mV
F
Input current
Track connected to -Sense
-0.13
mA
Track input (pin 5)
Open-circuit voltage
0
VO Bus
Input slew rate limits
0.1 (5)
1
V/ms
Referenced to -VI
Input high voltage (VIH)
2
Open (6)
V
Output enable inputs (pins 2, 3)
Input low voltage (VIL)
-0.2
0.8
Input low current (IIL)
–0.8
mA
Standby input current
Pins 2 and 3 open
8
16
mA
IO (tot)
Overcurrent threshold
Shutdown, followed by autorecovery
12
A
VI increasing
17
UVLO
Undervoltage lockout
V
VI decreasing
16
S
Switching frequency
Over VI range
400
500
600
kHz
Internal input capacitance
1
F
External input capacitance
Between +VI and –VI
100
F
External output capacitance
Between both outputs and VO COM
220
330
5,000
F
Isolation voltage
Input-output
1,500
Vdc
Isolation capacitance
Input-output
2,000
pF
Isolation resistance
Input-output
10
M
Telcordia SR-332 50% stress, TA = 40°C, ground
MTBF
Reliability
3.6
106 Hr
benign
(1)
The converter requires a minimum load current at either the VO Seq or VO Bus output for proper operation. 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)
When load current is supplied from the VO Seq output, the module exhibits higher power dissipation and slightly lower operating
efficiency.
(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 100 ppm/°C temperature stability.
(5)
When controlling the Track input from an external source, the slew rate of the applied signal must be greater than the minimum limit.
Failure to allow the voltage to completely rise to the voltage at the VO (bus) output, at no less than the minimum specified rate, may
thermally overstress the converter.
(6)
The PEN and NEN inputs each have an internal pullup resistor. If the enable feature is not used, the PEN input (pin 2) should be left
open circuit and the NEN input (pin 3) permanently connected to –VI. A discrete MOSFET or bipolar transistor is recommended for the
enable control. The open-circuit voltage is less than 10 V. See the Application Information for a more detailed description.
4
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PTB78560AAZ 功能描述:DC/DC轉(zhuǎn)換器 30-W 24-V/48V Input 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:
PTB78560BAH 功能描述:DC/DC轉(zhuǎn)換器 30-W 24-V/48V Input 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:
PTB78560BAS 功能描述:DC/DC轉(zhuǎn)換器 30-W 24-V/48V Input 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:
PTB78560BAZ 功能描述:DC/DC轉(zhuǎn)換器 30-W 24-V/48V Input 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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