PT7761-5V_09 Datasheet, PDF (2/9 Pages) Texas Instruments – 40-A Programmable Integrated

PT7761—5V
40-A Programmable Integrated
Switching Regulator Module
Programming Information
Pin-Out Information
VID3 VID2 VID1 VID0
VID4=1 VID4=0
Vout Vout
Pin Function
111 1
111 0
110 1
110 0
101 1
101 0
2.0V
2.1V
2.2V
2.3V
2.4V
2.5V
1.30V
1.35V
1.40V
1.45V
1.50V
1.55V
1 VID0
2 VID1
3 VID2
4 VID3
5 VID4
100 1
100 0
011 1
011 0
010 1
010 0
2.6V
2.7V
2.8V
2.9V
3.0V
3.1V
1.60V
1.65V
1.70V
1.75V
1.80V
1.85V
6 STBY *
7 Sync
8 No Connect
9 Vin
10 Vin
001 1
001 0
000 1
000 0
3.2V
3.3V
3.4V
3.5V
1.90V
1.95V
2.00V
2.05V
* For STBY* pin:
Open =Output Enabled
Ground =Output Disabled
Logic 0 = Pin 15 potential (Remote Sense GND)
Logic 1 = Open circuit (no pull-up resistors)
VID3 and VID4 may not be changed while the unit is operating.
Pin Function
11 Vin
12 Vin
13 Vin
14 Vin
15 Rem Sense GND 2
16 GND
17 GND
18 GND
19 GND
20 GND
Pin Function
21 GND
22 GND
23 V_out
24 Vout
25 Vout
26 Vout
27 V_out
28 Vout
29 Vout
30 Vout
31 Rem Sense V_out
Specifications (Unless otherwise stated, Ta =25°C, Cin =1,500µF, Cout =330µF, Vin =5V, Vo =3.3V, & Io =Iomax)
PT7761
Characteristics
Symbols
Conditions
Min
Typ
Max
Units
Output Current
Input Voltage Range
Set-Point Voltage Tolerance
Temperature Variation
Line Regulation
Load Regulation
Total Output Variation
Efficiency
Vo Ripple (pk-pk)
Transient Response
Short Circuit Threshold
Switching Frequency
Standby Control (pin 6)
Input High Voltage
Input Low Voltage
Input Low Current
Quiescent Current
External Output Capacitance
Operating Temperature Range
Storage Temperature
Mechanical Shock
Mechanical Vibration
Mil-STD-883D, 20-2000 Hz
Weight
Flammability
Io
Vin
Votol
∆Regtemp
∆Regline
∆Regload
∆V_otol
η
Vr
ttr
∆Vtr
Isc(pk)
ƒ_s
V_IH
VIL
IIL
Iin stby
Cout
Ta
T_s
—
—
Ta =25°C, Natural convection
T_a =60°C, 200LFM, Pkg N
Over Io range
All output voltages
–40°C≤ Ta ≤85°C, Io =Iomin
Over Vin range
Over load range
Includes set-point, line, load,
–40°C ≤Ta ≤ +85°C
I_o =20A
V_o = 3.3V
Vo = 2.5V
Vo = 1.8V
Io =40A
Vo = 3.3V
Vo = 2.5V
Vo = 1.8V
20MHz bandwidth
1A/µs load step from 50% to 100% Iomax
Vo over/undershoot
Reset and auto-recovery
Over V_in and I_o ranges
Referenced to GND (pins 16–22)
Pin 6 to GND
Pin 6 to GND
Between +Vo and GND
Over Vin Range
—
Mil-STD-883D, Method 2002.3
1 msec, Half Sine, mounted to a fixture
Vertical
Horizontal
Vertical/Horizontal
Materials meet UL 94V-0
0.1 (1)
0.1 (1)
4.5
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
300
2
-0.2
—
—
330
–40 ⁽⁴⁾
-40
—
—
—
—
—
—
—
—
±0.75
±5
±5
±1
90
89
83
86
85
80
50
50
100
75
350
40
38
5.5
±25 (2)
—
—
—
±3
—
—
—
—
—
—
—
—
—
—
400
A
V
mV
%Vo
mV
mV
%Vo
%
%
mV
µSec
mV
A
kHz
—
—
Open (3)
0.8
V
0.4
—
mA
30
—
mA
—
30,000 µF
—
+85 ⁽⁵⁾
°C
—
+125
°C
TBD
—
TBD (6) —
TBD (6) —
55
—
G’s
G’s
grams
Notes: (1) ISR-will operate down to no load with reduced specifications.
(2) If the Remote Sense Ground (Pin 15) is not used, it must be connected to pin 16 for optimum output voltage accuracy.
(3) The Standby control (pin 6) has an internal pull-up, and if left open-circuit the module will operate when input power is applied.
(4) For operation below 0°C, C_in and C_out must have stable characteristics. Use either low ESR tantalum or Oscon® capacitors.
(5) See safe Operating Area curves or consult factory for the appropriate derating.
(6) The case pins on the through-hole package types (suffixes N & A) must be soldered. For more information see the applicable package outline drawing.
External Capacitors: The PT7761 series requires a minimum ouput capacitance of 330µF for proper operation. The PT7761 also requires a minimum input capacitance
of 1,500µF, which must be rated for a minimum of 1.4Arms of ripple current. For transient or dynamic load applications, additional capacitance may be required.
For further information refer to the application note regarding capacitor selection for this product.
Input Inductor: An input inductor is optional for most applications. The input inductor must be sized to handle 30ADC with a typical value of 1µH.
For technical support and more information, see inside back cover or visit www.ti.com