Rainbow Electronics MAX783 - Manual (Page 2)

MAX783
Triple-Output Power-Supply Controller
for Notebook Computers
2 _______________________________________________________________________________________
V+ to GND .................................................................-0.3V, +36V
PGND to GND........................................................................±2V
VL to GND ...................................................................-0.3V, +7V
BST3, BST5 to GND ..................................................-0.3V, +36V
LX3 to BST3.................................................................-7V, +0.3V
LX5 to BST5.................................................................-7V, +0.3V
Inputs/Outputs to GND
(D1, D2, S
—
H
—
D
—
N
–
, ON5, REF, SYNC, DA1, DA0, DB1, DB0, ON5,
SS5, CS5, FB5, R
—
D
—
Y
—
5
–
, CS3, FB3, SS3, ON3).-0.3V, (VL + 0.3V)
VDD to GND.................................................................-0.3V, 20V
VPPA, VPPB to GND.....................................-0.3V, (VDD + 0.3V)
VH to GND ...................................................................-0.3V, 20V
Q1, Q2 to GND................................................-0.3V, (VH + 0.3V)
DL3, DL5 to PGND..........................................-0.3V , (VL + 0.3V)
DH3 to LX3 ..................................................-0.3V, (BST3 + 0.3V)
DH5 to LX5 ..................................................-0.3V, (BST5 + 0.3V)
REF, VL, VPP Short to GND........................................Momentary
REF Current.........................................................................20mA
VL Current ...........................................................................50mA
VPPA, VPPB Current .........................................................100mA
Continuous Power Dissipation (T
A = +70°C)
SSOP (derate 11.76mW/°C above +70°C) ...................762mW
Operating Temperature Ranges:
MAX783CBX/MAX783_CBX.................................0°C to +70°C
MAX783EBX/MAX783_EBX ..............................-40°C to +85°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
ELECTRICAL CHARACTERISTICS
(V+ = 15V, GND = PGND = 0V, I VL = I REF = 0mA, S
—
H
—
D
—
N
–
= ON3 = ON5 = 5V, other digital input levels are 0V or +5V,
T A = T MIN to T MAX , unless otherwise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ABSOLUTE MAXIMUM RATINGS
VDD = 18V, ON3 = ON5 = 5V, VPPA/VPPB programmed to
0V
0mV < (CS5-FB5) < 70mV, 6V < V + < 30V
(includes load and line regulation)
Program to 0V, 13V < VDD < 19V, 0mA < I L < 0.3mA
Program to 3.3V, 13V < VDD < 19V, 0mA < I L < 60mA
Program to 5V, 13V < VDD < 19V, 0mA < I L < 60mA
Program to 12V, 13V < VDD < 19V, 0mA < I L < 60mA
VDD = 18V, ON3 = ON5 = 5V, VPPA/VPPB programmed to
12V with no external load
VDD = 20V
CS3-FB3 (VDD < 13V, flyback mode)
Either controller (0mV to 70mV)
Either controller (6V to 30V)
Rising edge, hysteresis = 1%
CS3-FB3 or CS5-FB5
Falling edge, hysteresis = 1%
CONDITIONS
V 4.80 5.08 5.20
-0.30 0.30
FB5 Output Voltage
3.17 3.30 3.43
V 5.5 30
4.85 5.05 5.20
V
11.60 12.10 12.50
VPPA/VPPB Output Voltage
Input Supply Range
µA 15 30 Off VDD Current
µA
mA
140 300
2 SS3/SS5 Fault Sink Current
Quiescent VDD Current
mA 2 3
µA 2.5 4.0 6.5 SS3/SS5 Source Current
-50 -100 -160
VDD Shunt Current
%
V
2.5 Load Regulation
%/V 0.03
18 20
Line Regulation
mV
VDD Shunt Setpoint
80 100 120
V
Current-Limit Voltage
UNITS
13 14
MIN TYP MAX
VDD Regulation Setpoint
PARAMETER
3.17 3.35 3.46
3.32 3.50 3.60
0mV < (CS3-FB3) < 70mV, 6V < V + < 30V
(includes load and line regulation)
V
3.46 3.65 3.75
FB3 Output Voltage
MAX783
MAX783R
MAX783S
3.3V AND 5V STEP-DOWN CONTROLLERS
15V FLYBACK CONTROLLER
PCMCIA REGULATORS (Note 1)