Rainbow Electronics MAX5043 - Manual (Page 3)

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MAX5042/MAX5043
Two-Switch Power ICs with Integrated
Power MOSFETs and Hot-Swap Controller
ELECTRICAL CHARACTERISTICS
(V POSINPWM = 20V to 76V, V REG15 = 18V, C REG15 = 4.7µF, C REG9 = 1µF, C REG5 = 1µF, R RCOSC = 24kΩ, C RCOSC = 100pF, C BST =
0.22µF, R DRVDEL = 10kΩ, C DRVDEL = 0.22µF, V CSS = V CSP = V CSN = V RAMP = V PWMNEG = V NEGIN = 0, T A = -40°C to +125°C,
unless otherwise noted. Typical values are at V POSINPWM = 48V, T A = +25°C, unless otherwise noted. All voltages are referred to
PWMNEG, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Input Supply Range V POSINPWM 20 76 V
REG15 REGULATOR
REG15 Output Voltage Range V
REG15
V
POSINPWM
= 20V to 76V 13.0 16.6 V
REG15 Output Voltage Load
Regulation
V POSINPWM = 20V, I REG15 = 0 to 80mA 1.5 V
REG15 Output Current Inferred from load regulation test 80 mA
REG15 Current Limit REG15 shorted to PWMNEG with 10 Ω 140 mA
REG15 Overdrive Voltage 18 40 V
REG9 REGULATOR
REG9 Output Voltage Range V REG15 = 18V to 40V 8.3 10.1 V
REG9 Output Voltage Load
Regulation
I REG9 = 0 to 40mA 0.35 V
REG9 Output Current Inferred from load regulation test 40 mA
REG9 Current Limit REG9 shorted to PWMNEG with 10
Ω
100 mA
REG5 REGULATOR
REG5 Output Voltage Range V REG15 = 18V to 40V 4.5 5.5 V
REG5 Output Voltage Load
Regulation
I REG5 = 0 to 20mA 0.35 V
REG5 Output Current Inferred from load regulation test 20 mA
REG5 Current Limit REG5 shorted to PWMNEG with 10
Ω
40 mA
PWM COMPARATOR
Common-Mode Range V CM-PWM 0 5.5 V
Input Offset Voltage 10 mV
Input Bias Current -2.5 +2.5 µA
Propagation Delay 50mV overdrive, 0 ≤ V CM-PWM ≤ 5.5V 70 ns
RCOSC OSCILLATOR
PWM Period t OSC-PWM 3.9 µs
Maximum Duty Cycle 47 %
Maximum RCOSC Frequency f RCOSC 1.2 MHz
RCOSC Peak Trip Level V TH 2.55 V
RCOSC Valley Trip Level 0.2 V
RCOSC Input Bias Current -0.3 µA
RCOSC Discharge MOSFET
R
DS(ON)
Sinking 10mA 60 120
Ω
RCOSC Discharge Pulse Width 50 ns
SYNC High Level 3.5 V
SYNC Low Level 0.8 V