PT8000-5V Datasheet, PDF (2/8 Pages) Texas Instruments – 60 Amp High-Performance

PT8000—5V
60 Amp High-Performance
Programmable ISR
Pin-Out Information
Pin Function
1 Vout
2 Vin
3 Vin
4 GND
5 GND
6 Vin
7 Vin
8 Vout
9 Vout
10 Vout
11 Synch 1
12 Synch 2
13 Synch 3
14 Synch 4
15 Do Not Connect
PinFunction
16 GND
17 GND
18 GND
19 Vout
20 Remote Sense Gnd
21 PWRGD*
22 STBY*
23 OVF*
24 Track
25 Remote Sense Vout
26 Vout
27 GND
28 GND
29 GND
30 VID4
For STBY* pin; Open = output enabled
Gnd = output disabled.
PinFunction
31 VID3
32 VID2
33 VID1
34 VID0
35 Vout
36 Vout
37 Vout
38 Vin
39 Vin
40 GND
41 GND
42 Vin
43 Vin
44 Vout
Programming Information
PT8001
PT8002
VID4=1 VID4=0
VID3 VID2 VID1 VID0 Vo Vo
VID4=1 VID4=0
Vo Vo
1
1
1
1
2.0V
1.30V
1.075V 1.475V
1
1
1
0
2.1V
1.35V
1.100V 1.500V
1
1
0
1
2.2V
1.40V
1.125V 1.525V
1
1
0
0
2.3V
1.45V
1.150V 1.550V
1
0
1
1
2.4V
1.50V
1.175V 1.575V
1
0
1
0
2.5V
1.55V
1.200V 1.600V
1
0
0
1
2.6V
1.60V
1.225V 1.625V
1
0
0
0
2.7V
1.65V
1.250V 1.650V
0
1
1
1
2.8V
1.70V
1.275V 1.675V
0
1
1
0
2.9V
1.75V
1.300V 1.700V
0
1
0
1
3.0V
1.80V
1.325V 1.725V
0
1
0
0
3.1V
1.85V
1.350V 1.750V
0
0
1
1
3.2V
1.90V
1.375V 1.775V
0
0
1
0
3.3V
1.95V
1.400V 1.800V
0
0
0
1
3.4V
2.00V
1.425V 1.825V
0
0
0
0
3.5V
2.05V
1.450V 1.850V
Logic 0 = Pin 20 potential (remote sense gnd)
Logic 1 = Open circuit (no pull-up resistors)
VID3 and VID4 may not be changed while the unit is operating.
Specifications
Characteristics
(T _a = 25°C unless noted)
Output Current
Input Voltage Range
Output Voltage Tolerance
Line Regulation
Load Regulation
V_o Ripple/Noise pk-pk
Transient Response
(no external capacitance)
Efficiency
Switching Frequency
STBY* (pin 22)
PWRGD* (pin 21)
OVF* (pin 23)
Over-temperature
Shutdown Point
Absolute Maximum
Operating Temperature Range
Storage Temperature
Weight
Symbols
Io
Vin
∆Vo
Regline
Regload
V_n
ttr
V_os
η
ƒo
Off
On
On
Off
On
Off
OTP
Ta
Ts
—
Conditions
Ta = +50°C, 400 LFM, pkg N
Ta = +25°C, natural convection
0.1A ≤ Io ≤ 60A
Over Vin range, Io =Iomax
0°C ≤ Ta ≤ +60°C
Over Vin range, Io = Imax
Vin =5V, 0.1 ≤ Io ≤ Iomax
V_in =5V, I_o = 60A
Io step from 30A to 60A in 6µs
V_o over/undershoot
Vin = +5V, Io =30A,
Over Vin and Io ranges
Vo =3.3V
Vo =1.8V
85% <Vout <115% of VID set point
Vout <85%, or Vout >125% of VID set point
Vout > 125% of VID set point
Vout < 115% of VID set point
Case temperature -Auto reset
—
—
Vertical/Horizontal
PT8000 SERIES
Min
Typ
Max
0.1 (1)
—
0.1 (1)
—
4.5
—
60 (2)
30 (2)
5.5
Vo-0.03 —
Vo+0.03
—
±1.0
±10
—
±1.0
±10
—
50
—
—
50
—
—
100
—
—
92
—
—
86
—
1.3
—
1.5
0
—
0.8
Note (2)
—
500
—
—
500
—
—
500
—
—
500
—
—
105
—
Units
A
V
V
mV
mV
mV
µs
mV
%
MHz
V
Ω
kΩ
Ω
kΩ
°C
–40
—
+85 ⁽³⁾
°C
-40
—
+125
°C
—
110
—
grams
Notes: (1) The ISR will operate down to no load with reduced specifications.
(2) Specified as “Open-Circuit.” Either an “open-collector” bipolar transistor, or “open-drain” MOSFET is recommended for controlling this input.
(3) See Safe Operating Area curves or contact the factory to determine the appropriate derating.
Input Filter: To facilitate the high output fast trqansient performance, a high quality 2,000µF input capacitor(s) is required for the PT8000 series. Use either
tantalum or Oscon® type capacitors with a maximum ESR (equivalent series resistance) of 20mΩ.
For technical support and more information, see inside back cover or visit www.ti.com/powertrends