Rainbow Electronics MAX1635 - Manual (Page 2)

MAX1630–MAX1635
Multi-Output, Low-Noise Power-Supply
Controllers for Notebook Computers
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V+ = 15V, both PWMs on, SYNC = VL, VL load = 0mA, REF load = 0mA, SKIP = 0V, T A = T MIN to T MAX , unless otherwise noted.
Typical values are at T A = +25°C.)
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.
V+ to GND ..............................................................-0.3V to +36V
PGND to GND.....................................................................±0.3V
VL to GND ................................................................-0.3V to +6V
BST3, BST5 to GND ...............................................-0.3V to +36V
LX3 to BST3..............................................................-6V to +0.3V
LX5 to BST5..............................................................-6V to +0.3V
REF, SYNC, SEQ, STEER, SKIP, TIME/ON5,
SECFB, RESET to GND ............................................-0.3V to +6V
V
DD to GND ............................................................-0.3V to +20V
RUN/ON3, SHDN to GND.............................-0.3V to (V+ + 0.3V)
12OUT to GND ...........................................-0.3V to (V
DD + 0.3V)
DL3, DL5 to PGND........................................-0.3V to (VL + 0.3V)
DH3 to LX3 ...............................................-0.3V to (BST3 + 0.3V)
DH5 to LX5 ...............................................-0.3V to (BST5 + 0.3V)
VL, REF Short to GND ................................................Momentary
12OUT Short to GND..................................................Continuous
REF Current...........................................................+5mA to -1mA
VL Current.........................................................................+50mA
12OUT Current ...............................................................+200mA
V
DD Shunt Current ............................................................+15mA
Operating Temperature Ranges
MAX163_CAI.......................................................0°C to +70°C
MAX163_EAI ....................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +160°C
Continuous Power Dissipation (T
A = +70°C)
SSOP (derate 9.52mW/°C above +70°C) ....................762mW
Lead Temperature (soldering, 10sec) .............................+300°C
CONDITIONS
V 4.2 30.0 Input Voltage Range
UNITS MIN TYP MAX PARAMETER
Either SMPS
V+ = 4.2V to 30V, CSH3–CSL3 = 0V,
CSL3 tied to FB3
V REF 5.5
V 2.42 2.5 2.58
3V Output Voltage in
Adjustable Mode
Output Voltage Adjust Range
Either SMPS, 5.2V < V+ < 30V %/V 0.03
Either SMPS, 0V < CSH_–CSL_ < 80mV
Line Regulation
Dual Mode comparator
% -2
V 0.5 1.1 Adjustable-Mode Threshold Voltage
Load Regulation
SYNC = VL
From enable to 95% full current limit with respect to
f
OSC (Note 1)
270 300 330
clks 512
SKIP = 0V, not tested
Soft-Start Ramp Time
mV 10 25 40 Idle Mode Threshold
SYNC = 0V
kHz
170 200 230
Oscillator Frequency
V+ = 4.2V to 30V, 0mV < CSH3–CSL3 < 80mV,
FB3 = 0V
V 3.20 3.39 3.47 3V Output Voltage in Fixed Mode
V+ = 4.2V to 30V, CSH5–CSL5 = 0V,
CSL5 tied to FB5
V 2.42 2.5 2.58
5V Output Voltage in
Adjustable Mode
V+ = 5.2V to 30V, 0mV < CSH–CSL5 < 80mV,
FB5 = 0V
V 4.85 5.13 5.25 5V Output Voltage in Fixed Mode
SYNC = VL 97 98
SYNC = 0V (Note 2)
%
98 99
Maximum Duty Factor
CSH3–CSL3 or CSH5–CSL5 80 100 120
SKIP = VL or V
DD < 13V or SECFB < 2.44V
mV
-50 -100 -150
Current-Limit Threshold
MAIN SMPS CONTROLLERS