Datasheet MAX25601A, MAX25601B, MAX25601C, MAX25601D (Maxim) - 3

MAX25601A/MAX25601B/ Synchronous Boost and MAX25601C/MAX25601D Synchronous Buck LED Controllers
Electrical Characteristics
(VIN = 12V, VUVEN = 12V, TA = TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS INPUT VOLTAGE
MAX25601A/MAX25601B 5 36 Input Voltage Range VIN MAX25601C/MAX25601D 5 48 V IN connected to VDRV and VCC (external bias) 4.5 5.5 Quiescent Current I VDIM = 5V, VIN = 12V, VOUT_BOOST = 48V, Q boost and buck not switching 5 10 mA Shutdown Current ISHDN VDIM = 0V, VIN = 12V, VUVEN = 0V 12 μA
VCC and VDRV
I V VDRV = 30mA, 5.5V ≤ VIN ≤ 36V 4.95 5.0 5.05 DRV Output Voltage VDRV V IVDRV = 10mA to 60mA, 6V ≤ VIN ≤ 25V 4.90 5.0 5.10 VDRV Dropout Voltage IVDRV = 5mA, VIN = 4.5V 35 100 mV VDRV Short-Circuit Cur- rent VDRVIMAX VDRV = 4.5V, VIN = 6V 90 mA VDRV Undervoltage Lockout Rising VDRVUVLOR Rising voltage 3.92 V VDRV Undervoltage Lockout Falling VDRVUVLOF Falling voltage 3.45 V
UV ENABLE
UVEN Threshold VTH_UVEN 1.12 1.24 1.37 V Hysteresis 100 mV
FLT
FLTLow Voltage Any boost or buck fault present 0.4 V FLTLeakage Current FLTLK VFLT = 5.5V, 100kΩ pullup 1 μA
THERMAL SHUTDOWN
Thermal Shutdown Tem- perature Rising 165 °C Thermal Shutdown Hys- teresis 10 °C
BUCK / OFF-TIME CONTROL
Minimum Off-Time tOFF_MIN_ VCSP - VCSN = 0V 125 200 ns BUCK Maximum Off-Time 42 μs CS Comparator Propagation Delay tCS_DLY 65 ns Linear Range of Pulse Doubler 0 5 μs www.maximintegrated.com Maxim Integrated │ 3