PTQA430025_0612 Datasheet, PDF (3/18 Pages) Texas Instruments – 100-W 48-V INPUT ISOLATED DC/DC CONVERTER

PTQA430025, PTQA430033, PTQA420050
www.ti.com
SLTS261A – MAY 2006 – REVISED DECEMBER 2006
ELECTRICAL CHARACTERISTICS PTQA430025
(Unless otherwise stated, T_A =25°C, V_I = 48 V, V_O = 2.5 V, C_O = 0 µF, and I_O = I_Omax)
PARAMETER
TEST CONDITIONS
I_O
V_I
V_O tol
Output Current
Input Voltage Range
Set Point Voltage
Tolerance
Over V_I range
Over I_O Range
Reg_temp
Reg_line
Reg_load
∆V_otot
Temperature Variation
Line Regulation
Load Regulation
Total Output Voltage
Variation
–40°C >T_A > 85°C
Over V_I range
Over I_O range
Includes set-point, line, load, –40°C >T_A > 85°C
∆V_ADJ
η
V_R
t_tr
∆V_tr
I_TRIP
OVP
Output Adjust Range
Efficiency
V_O Ripple (pk-pk)
Transient Response
Overcurrent Threshold
Output Overvoltage
Protection
P_O≤ 75 W
I_O = 50% I_Omax
20 MHz bandwidth
0.1 A/µs slew rate, 50% to 75% I_Omax
V_O over/undershoot
Shutdown, followed by auto-recovery
Output shutdown and latch off
OTP
Over Temperature
Protection
Temperature Measurement at thermal sensor. Hysteresis = 10°C
nominal.
f_s
Switching Frequency
UVLO Undervoltage Lockout
On/Off Input: Negative Enable
Over V_I range
V_OFF
V_HYS
V_I decreasing, I_O = 6 A
Hysteresis
V_IH
Input High Voltage
V_IL
Input Low Voltage
I_IL
Input Low Current
On/Off Input: Positive Enable
Referenced to –V_I
V_IH
Input High Voltage
V_IL
Input Low Voltage
Referenced to –V_I
I_IL
Input Low Current
I_ISB
Standby Input Current
Output disabled (pin 2 status set to Off)
C_I
External Input Capacitance Between +V_I and –V_I
C_O
External Output
Capacitance
Between +V_O and –V_O
Isolation Voltage
Input-to-output and input-to-case
Isolation Capacitance
Input-to-output
Isolation Resistance
Input-to-output
PTQA430025
MIN TYP MAX UNIT
0
30 A
36
48
75 V
±1 ⁽¹⁾
%V_O
±1.15
±5
±5
±1.5
%V_O
mV
mV
±3 %V_O
–20
91%
50
150
25
41
120
105
10 %V_O
100 mV_pp
µs
mV
A
%V_O
°C
300
kHz
32.5
V
1.5
2.4
–0.2
Open ⁽²⁾
V
0.8
–0.3
mA
4.5
–0.2
0
Open ⁽²⁾
V
0.8
–0.5
mA
37
mA
100
µF
30000 µF
1500
Vdc
1200
pF
10
MΩ
(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.
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