參數(shù)資料
型號(hào)： PTQA420025P2AZ
廠商： TEXAS INSTRUMENTS INC
元件分類： 電源模塊
英文描述： 1-OUTPUT 75 W DC-DC REG PWR SUPPLY MODULE
封裝： SMD-8
文件頁(yè)數(shù)： 11/17頁(yè)
文件大小： 513K
代理商： PTQA420025P2AZ
www.ti.com
ELECTRICAL CHARACTERISTICS PTQA430025
SLTS261B – MAY 2006 – REVISED NOVEMBER 2007
(Unless otherwise stated, TA =25°C, VI = 48 V, VO = 2.5 V, CO = 0 F, and IO = IOmax)
PTQA430025
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
IO
Output Current
Over VI range
0
30
A
VI
Input Voltage Range
Over IO Range
36
48
75
V
VO tol
Set Point Voltage
±1(1)
%VO
Tolerance
Regtemp Temperature Variation
–40
°C >T
A > 85°C
±1.15
%VO
Regline
Line Regulation
Over VI range
±5
mV
Regload
Load Regulation
Over IO range
±5
mV
ΔVotot
Total Output Voltage
Includes set-point, line, load, –40
°C >T
A > 85°C
±1.5
±3
%VO
Variation
ΔVADJ
Output Adjust Range
PO ≤ 75 W
–20
10
%VO
η
Efficiency
IO = 50% IOmax
91%
VR
VO Ripple (pk-pk)
20 MHz bandwidth
50
100
mVpp
ttr
0.1 A/
s slew rate, 50% to 75% I
Omax
150
s
Transient Response
ΔVtr
VO over/undershoot
25
mV
ITRIP
Overcurrent Threshold
Shutdown, followed by auto-recovery
41
A
OVP
Output Overvoltage
Output shutdown and latch off
120
%VO
Protection
OTP
Over Temperature
Temperature Measurement at thermal sensor. Hysteresis = 10
°C
105
° C
Protection
nominal.
fs
Switching Frequency
Over VI range
300
kHz
VOFF
VI decreasing, IO = 6 A
32.5
UVLO
Undervoltage Lockout
V
VHYS
Hysteresis
1.5
On/Off Input: Negative Enable
VIH
Input High Voltage
2.4
Open(2)
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(2)
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)
37
mA
CI
External Input Capacitance
Between +VI and –VI
100
F
CO
External Output
Between +VO and –VO
0
30000
F
Capacitance
Isolation Voltage
Input-to-output and input-to-case
1500
Vdc
Isolation Capacitance
Input-to-output
1200
pF
Isolation Resistance
Input-to-output
10
M
(1)
If Sense(–) is not used, pin 5 must be connected to pin 4 for optimum output voltage accuracy.
(2)
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): PTQA430025 PTQA430033 PTQA420050
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