Triple-Output Power-Supply
Controller for Notebook Computers
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 15V, GND = PGND = 0V, I
VL
= I
REF
= 0mA, ON3 = ON5 = 5V, other digital input levels are 0V or +5V, T
A
= T
MIN
to T
MAX
,
unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
INTERNAL REGULATOR AND REFERENCE
VL Output Voltage
VL Fault Lockout Voltage
VL/FB5 Switchover Voltage
REF Output Voltage
REF Fault Lockout Voltage
REF Load Regulation
V+ Standby Current
Quiescent Power Consumption
(both PWM controllers on)
V+ Off Current
COMPARATORS
D1-D3 Trip Voltage
D1-D3 Input Current
Q1-Q3 Source Current
Q1-Q3 Sink Current
Q1-Q3 Output High Voltage
Q1-Q3 Output Low Voltage
Quiescent VH Current
Falling edge, hysteresis = 1%
D1 = D2 = D3 = 0V to 5V
VH = 15V, Q1-Q3 forced to 2.5V
VH = 15V, Q1-Q3 forced to 2.5V
I
SOURCE
= 5µA, VH = 3V
I
SINK
= 20µA, VH = 3V
VH = 18V, D1 = D2 = D3 = 5V, no external load
SYNC = 3.3V
SYNC = 0V or 5V
270
170
200
200
Not tested
240
SYNC = 3.3V
SYNC = 0V or 5V
ON3, ON5, DA0, DA1, DB0, DB1, SYNC
ON3, ON5, DA0, DA1, DB0, DB1
SYNC
ON3, ON5, DA0, DA1, DB0, DB1, V
IN
= 0V or 5V
DL3, DL5 forced to 2V
BST3-LX3 = BST5-LX5 = 4.5V, DH3, DH5 forced to 2V
High or low
High or low, BST3-LX3 = BST5-LX5 = 4.5V
1
1
7
7
2.4
VL-0.5
±1
89
92
92
95
0.8
200
350
6
300
200
12
200
VH-0.5
0.4
10
330
230
20
500
1.61
1.69
±100
30
1000
V
nA
µA
µA
V
V
µA
ON5 = ON3 = 0V, 5.5V < V+ < 30V, 0mA < I
L
< 25mA
Falling edge, hysteresis = 1%
Rising edge of FB5, hysteresis = 1%
No external load (Note 2)
Falling edge
0mA < I
L
< 5mA
D1 = D2 = D3 = ON3 = ON5 = DA0 = DA1 = DB0 =
DB1 = 0V, V+ = 30V
D1 = D2 = D3 = DA0 = DA1 = DB0 = DB1 = 0V,
FB5 = CS5 = 5.25V, FB3 = CS3 = 3.5V
FB5 = CS5 = 5.25V, VL switched over to FB5
4.5
3.6
4.2
3.24
2.4
30
70
6.0
30
5.5
4.2
4.7
3.36
3.2
75
110
8.6
60
V
V
V
V
V
mV
µA
mW
µA
MAX782
OSCILLATOR AND INPUTS/OUTPUTS
Oscillator Frequency
SYNC High Pulse Width
SYNC Low Pulse Width
SYNC Rise/Fall Time
Oscillator SYNC Range
Maximum Duty Cycle
Input Low Voltage
Input High Voltage
Input Current
DL3/DL5 Sink/Source Current
DH3/DH5 Sink/Source Current
DL3/DL5 On Resistance
DH3/DH5 On Resistance
kHz
ns
ns
ns
kHz
%
V
V
µA
A
A
Ω
Ω
Note 1:
Output current is further limited by maximum allowable package power dissipation.
Note 2:
Since the reference uses VL as its supply, V+ line regulation error is insignificant.
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3
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
