Rainbow Electronics MAX1531 - Manual (Page 2)

MAX1530/MAX1531
Multiple-Output Power-Supply Controllers for
LCD Monitors
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V IN = 12V, V EN = V SEQ = 5V, T A = 0 °C to +85°C, 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.
IN, DRV1, DRV2, DRV3, DRV4, CSH,
CSL to AGND .....................................................-0.3V to +30V
DRV5 to VL .............................................................-28V to +0.3V
CSH to CSL ..............................................................-0.3V to +6V
VL to AGND ..............................................................-0.3V to +6V
PGND to AGND...................................................................
±0.3V
LX to BST..................................................................-6V to +0.3V
BST to AGND..........................................................-0.3V to +36V
DH to LX .....................................................-0.3V to (BST + 0.3V)
DL to PGND ..................................................-0.3V to (VL + 0.3V)
SEQ, ONL2, ONL3, ONL4, ONL5, COMP,
ILIM to AGND............................................-0.3V to (VL + 0.3V)
RSTIN, RESET, EN, FB, FBL1, FBL2, FBL3, FBL4, FBL5,
FREQ to AGND.....................................................-0.3V to +6V
VL Short Circuit to AGND ...........................................Momentary
Continuous Power Dissipation (T
A = +70 °C)
32-Pin Thin QFN (derate 21.3mW/°C above +70°C) ...1702mW
Operating Temperature Range ...........................-40 °C to +85°C
Storage Temperature Range .............................-65 °C to +150°C
Junction Temperature ......................................................+150 °C
Lead Temperature (soldering, 10s) .................................+300 °C
PARAMETER CONDITIONS MIN TYP MAX UNITS
GENERAL
Operating Input Voltage Range (Note 1) 4.5 28.0 V
Quiescent Supply Current V FB = V FBL1 = V FBL2 = V FBL3 = V FBL4 = 1.5V, V FBL5 = 0 1.7 3.0 mA
IC Disable Supply Current EN = AGND 200 400 µA
VL REGULATOR
VL Output Voltage 5.5V < V IN < 28V, 0 < I VL < 30mA 4.75 5 5.25 V
VL Undervoltage Lockout
Threshold
VL rising, 3% hysteresis 3.2 3.5 3.8 V
CONTROL AND SEQUENCE
SEQ, FREQ Input Logic High
Level
2.0 V
SEQ, FREQ Input Logic Low
Level
0.6 V
SEQ, FREQ Input Leakage
Current
-1 +1 µA
ONL_ Input Threshold ONL_ rising, 25mV hysteresis 1.201 1.238 1.275 V
ONL_ Source Current SEQ = EN = VL, V ONL _ = 0 to 1.24V 1.8 2.0 2.2 µA
ONL_ Input Leakage Current SEQ = EN = VL, ONL_ = VL -500 +500 nA
ONL_ Input Discharge Clamp
Resistance
SEQ = 0 800 1500 3000 Ω
EN Input Threshold EN rising, 5% hysteresis 1.201 1.238 1.275 V
EN Input Leakage Current -50 +50 nA
FAULT DETECTION
FB, FBL1, FBL2, FBL3, FBL4
Undervoltage Fault Trip Level
FB, FBL1, FBL2, FBL3, FBL4 falling, 25mV hysteresis 1.081 1.114 1.147 V
FBL5 Undervoltage Fault
Trip Level
FBL5 rising, 25mV hysteresis 300 400 500 mV