MAX782 MAXIM [Maxim Integrated Products], MAX782 Datasheet - Page 4

• Manufacturer Part Number: MAX782
• Description: Triple-Output Power-Supply Controller for Notebook Computers
• Manufacturer: MAXIM [Maxim Integrated Products]

Triple-Output Power-Supply
Controller for Notebook Computers
4
(Circuit of Figure 1, Transpower transformer type TTI5870, T
__________________________________________Typical Operating Characteristics
_______________________________________________________________________________________
100
100
90
80
70
90
80
70
9
8
7
6
5
0.01
0.001
0.001
MINIMUM INPUT VOLTAGE, 300kHz
+5V ON, +5V LOAD = 0mA
I
COMPONENTS OF TABLE 5
DD
+3.3V OUTPUT CURRENT, 200kHz
+5V OUTPUT CURRENT, 200kHz
= 0mA,
+5V OUTPUT CURRENT vs.
+5V OUTPUT CURRENT (A)
+3.3V OUTPUT CURRENT (A)
+5V OUTPUT CURRENT (A)
0.01
0.01
V
V
IN
0.1
EFFICIENCY vs.
EFFICIENCY vs.
IN
= 6V
= 10V
V
COMPONENTS,
OF TABLE 5. SYNC = 0V,
+3.3V OFF, I
IN
V
0.1
0.1
IN
= 15V
= 15V
V
1
IN
V
I
I
DD
DD
I
= 10V
I
IN
DD
DD
DD
1
1
= 6V
= 300mA
= 140mA
= 0mA
= 60mA
= 0mA
10
10
10
100
100
9
8
7
6
5
90
80
70
90
80
70
0.01
0.001
0.001
COMPONENTS OF TABLE 4,
SYNC = 0V
MINIMUM INPUT VOLTAGE, 200kHz
I
+5V ON
+5V LOAD = 0mA
I
+3.3V OFF
DD
DD
+3.3V OUTPUT CURRENT, 300kHz
V
+5V OUTPUT CURRENT, 300kHz
IN
= 0mA
= 0mA
+5V OUTPUT CURRENT vs.
= 15V
+3.3V OUTPUT CURRENT (A)
+5V OUTPUT CURRENT (A)
+5V LOAD CURRENT (A)
0.01
0.01
0.1
EFFICIENCY vs.
EFFICIENCY vs.
A
0.1
0.1
= +25°C, unless otherwise noted.)
V
IN
1
= 30V
I
I
DD
DD
I
DD
I
1
1
DD
= 300mA
= 140mA
V
V
= 60mA
V
IN
V
IN
= 0mA
IN
IN
= 30V
= 15V
= 6V
= 6V
10
10
10
10000
0.01
1000
1000
0.1
100
10
0.1
100
10
1
10
100 A
1
I
COILTRONIX CTX03-12062 TRANSFORMER
DD
5
0
OUTPUT CURRENT vs. INPUT VOLTAGE
CIRCUIT OF FIGURE 1,
SYNC = REF (300kHz)
ON3 = ON5 = 5V
+3.3V LOAD = +5V LOAD = 0mA
+5V, V
+3V LOAD = 0mA
QUIESCENT INPUT CURRENT vs.
SWITCHING FREQUENCY vs.
10
5
1mA
IN
INPUT VOLTAGE (V)
= 30V
INPUT VOLTAGE (V)
INPUT VOLTAGE
LOAD CURRENT
+5V LOAD = 0A-1A
10
LOAD CURRENT
+5V, V
15
+5V, +3V ON
10mA
15
IN
+5V, +3V OFF
= 7.5V
+3.3V, V
R
20
+5V LOAD = 3A
SENSE
20
100mA
IN
= 0.020
25
= 7.5V
25
30
30
1A