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| 型号： | PTQA420033P2AZ |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 100 W DC-DC REG PWR SUPPLY MODULE |
| 封装： | SMD-8 |
| 文件页数： | 13/17页 |
| 文件大小： | 513K |
| 代理商： | PTQA420033P2AZ |
www.ti.com
ELECTRICAL CHARACTERISTICS PTQA420050
SLTS261B – MAY 2006 – REVISED NOVEMBER 2007
(Unless otherwise stated, TA =25°C, VI = 48 V, VO = 5.0 V, CO = 0 F, and IO = IOmax)
PTQA420050
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
IO
Output Current
Over VI range
0
20
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 ≤ 100 W
–20
10
%VO
η
Efficiency
IO = 50% IOmax
92.5%
VR
VO Ripple (pk-pk)
20 MHz bandwidth
50
100
mVpp
ttr
0.1 A/
s slew rate, 50% to 75% I
Omax
100
s
Transient Response
ΔVtr
VO over/undershoot
50
mV
ITRIP
Overcurrent Threshold
Shutdown, followed by auto-recovery
29
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)
58
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
5
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