参数资料
型号: PTB48560BAH
厂商: Texas Instruments
文件页数: 6/29页
文件大小: 0K
描述: CONV DC/DC 3.3V 8A HZ T/H 11DIP
标准包装: 12
系列: PTB48560
类型: 隔离
输出数: 1
电压 - 输入(最小): 36V
电压 - 输入(最大): 75V
Voltage - Output 1: 1.8 ~ 3.6 V
电流 - 输出(最大): 8A
电源(瓦) - 制造商系列: 30W
电压 - 隔离: 1.5kV(1500V)
安装类型: 通孔
封装/外壳: 11-DIP 模块
尺寸/尺寸: 2.05" L x 1.05" W x 0.39" H(51.9mm x 26.5mm x 10.0mm)
包装: 托盘
工作温度: -40°C ~ 85°C
效率: 82%
电源(瓦特)- 最大: 30W
产品目录页面: 2703 (CN2011-ZH PDF)
其它名称: 296-20341
PTB48560BAH-ND
PTB48560A, PTB48560B
PTB48560C
SLTS236A – MARCH 2005 – REVISED OCTOBER 2005
PTB48560C ELECTRICAL CHARACTERISTICS
(Unless otherwise stated, T A = 25°C, V I = 48 V, V O = 12 V, C O = 100 μF, and I O = I O max)
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PARAMETER
TEST CONDITIONS
MIN
PTB48560C
TYP
MAX
UNIT
I O
V I
Output current
Input voltage range
Over V I range
Over I O range
I O Bus
0.1
(1)
36
48
2.5
(2)
75
A
V
Set-point voltage tolerance
±1
(3)
%V O
Temperature variation
-40°C ≤ T A ≤ 85°C
±0.5
%V O
V O
Line regulation
Load regulation
Over V I range
Over I O range
±0.2
±0.4
±1
±1
%V O
%V O
Total output voltage variation
Includes set-point, line, load, –40°C ≤ T A ≤ 85°C
±2
±3
(3)
%V O
η
Adjust range
Efficiency
V O Ripple (peak-to-peak)
Transient Response
Over V I range
20-MHz bandwidth
0.1 A/μs load step,
50% to 100%
I O max
R SET = 9.09 k ? , V O =12 V
R SET = open, V O = 9 V
Recovery time
V O over/undershoot
9
88%
86%
1
100
±150
13.2
V
%V O
μs
mV
Open
Track input (pin 5)
Output enable inputs (pins 2, 3)
Input current
Open-circuit voltage
Referenced to -V I
Track connected to -Sense
Input high voltage (V IH )
Input low voltage (V IL )
0
2
-0.2
0.48
V O Bus
(4)
0.8
mA
V
Input low current (I IL )
–0.48
mA
Standby input current
Pins 2 and 3 open
8
16
mA
I O Bus
UVLO
Overcurrent threshold
Undervoltage lockout
Shutdown, followed by autorecovery
V I increasing
V I decreasing
3.75
34
33
A
V
? S
Switching frequency
Over V I range
400
500
600
kHz
Internal input capacitance
1
μF
External output capacitance
Isolation voltage
Isolation capacitance
Isolation resistance
Between both outputs and V O COM
Input-output
Input-output
Input-output
100
1,500
10
2,000
1,500
μF
Vdc
pF
M ?
MTBF
Reliability
Telcordia SR-332 50% stress, T A = 40°C, ground
benign
3.4
10 6 Hrs
(1)
(2)
(3)
(4)
6
The converter requires a minimum load current for proper operation. The converter is not damaged when operated under a no-load
condition.
See temperature derating curves for safe operating area (SOA), to determine output current derating at elevated ambient temperatures.
The set-point voltage tolerance is affected by the tolerance and stability of R SET . The stated limit is unconditionally met if R SET has a
tolerance of 1%, with 100 ppm/°C temperature stability.
The PEN and NEN enable 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 –V I . 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.
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