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| 型号： | PTQB425080N3AD |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 200 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | ROHS COMPLIANT PACKAGE-7 |
| 文件页数： | 8/14页 |
| 文件大小： | 466K |
| 代理商： | PTQB425080N3AD |
ELECTRICAL CHARACTERISTICS PTQB425080
www.ti.com........................................................................................................................................ SLTS269B – DECEMBER 2006 – REVISED NOVEMBER 2007
(Unless otherwise stated, TA =25°C, VI = 48 V, VO = 8 V, CO = 10 F, and IO = IOmax
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
IO
Output Current
Over VI range
0
25
A
VI
Input Voltage Range
Over IO range
36
48
75
V
VO tol
Output Voltage Tolerance
Over VI and IO range
5.4
10.5
V
36
≤ VI ≤ 55 V
0.17
V/V
Regline
Line Regulation
55 < VI ≤ 75 V, VO = 9.5 V
10
%
Regload
Load Regulation
Over IO range
40
mV/A
η
Efficiency
IO = IOmax
93%
VR
VO Ripple (pk-pk)
20 MHz bandwidth
100
mVpp
ITRIP
Overcurrent Threshold
Shutdown, followed by auto-recovery
35
A
OTP
Over Temperature
Temperature Measurement at thermal sensor. Hysteresis =
125
° C
Protection
10°C nominal.
fs
Switching Frequency
Over VI range
275
kHz
VOFF
VI decreasing, IO = 10 A
32.5
UVLO
Undervoltage Lockout
V
VHYS
Hysteresis
1.5
On/Off Input: Negative Enable
VIH
Input High Voltage
2.4
Open(1)
Referenced to –VI
V
VIL
Input Low Voltage
–0.2
0.8
IIL
Input Low Current
–0.3
mA
On/Off Input: Positive Enable
VIH
Input High Voltage
4.5
Open(1)
Referenced to –VI
V
VIL
Input Low Voltage
–0.2
0.8
IIL
Input Low Current
–0.5
mA
IISB
Standby Input Current
Output disabled (pin 2 status set to Off)
3
mA
CI
External Input Capacitance
Between +VI and –VI
0
100
F
CO
External Output
Between +VO and –VO
0
3000
F
Capacitance
Isolation Voltage
Input-to-output and input-to-case
1500
Vdc
Isolation Capacitance
Input-to-output
500
pF
Isolation Resistance
Input-to-output
10
M
Signal Amplitude
5
Vpk-pk
SmartSync Clock Drive
TTL Output signal for
fss
(pin 5)
synchronizing POL modules
Signal Frequency
275
kHz
(1)
The Remote On/Off input has an internal pull-up and may be controlled with an open collector (drain) interface. An open circuit
correlates to a logic high. Consult the application notes for interface considerations.
Copyright 2006–2007, Texas Instruments Incorporated
3
Product Folder Link(s): PTQB425080
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