ISL6540A is an improved version of ISL6540 single -phase voltage PWM controller with an input voltage. The best transient response to the feedback compensation for constant circuit gain, especially in the wide input voltage range. Integrated high -speed synchronous rectifier MOSFET drivers and other complex functions provide a complete control and protection converter with the smallest external component for DC/DC, leading to the lowest cost and less engineering design. The output voltage of the converter can accurately adjust the internal reference voltage to 0.591V, and the system tolerance temperature and line load change of ± 0.68%are increased from the commercial system. The external voltage can replace the internal benchmark/DDR application of the voltage. ISL6540A has an internal linear regulator or an external linear regulator single -power application regulator drive option railway. The internal oscillating device can be adjusted between 250 from a thousand to 2 MM. Integrated voltage margin, programmable pre -voltage voltage, differential remote sensing amplifier and programmable input voltage characteristics enhance the ISL6540A value.

Features

The vehicle identification number and the power rail run between+3.3V to+20V

Quick transient response -0 To 100 %duty cycle-15MHz bandwidth error amplifier, the conversion rate is 6V/microsecond-voltage PWM front and rear edge

modulation control-input voltage feedback compensation

] 2.9V to 5.5V high-speed 2A/4A MOSFET grid drives-three-state of power-level shutdown

Internal linear regulator (LR)-5.5V bias from vehicle recognition number

] External LR driver to obtain the best thermal performance

with independent adjustable upper and system pressure testing and lower clock settings

Reference voltage I of DDR/tracking applications i /O

Internal reference voltage and buffer output of 0.591V-commercial/industrial range ± 0.68%/± 1.0%

Source pole and exchanges over current protection-high and low side MOSFET RDS ( ON) Sensor

Overwriting and under pressure protection

Small converter-qfn package

programmable oscillator, from 250kHz to 2MHz

unit Gain differential remote sensing voltage

The programmable soft start with pre -deflection load capacity

Good instructions with a programmable delayed power supply

EN input with voltage monitoring capacity [123 ]

Absolute maximum rated value Hot information

Input voltage, VIN, VFF, HSOC. -0.3V to+22.0V

Drive bias voltage, PVCC. -0.3V to+6.5V

signal bias voltage, VCC. -0.3V to+6.5V

Start voltage, vBOOT. -0.3 to+

Start to VBOOT-VPHASE. -0.3V to 7V (DC)

-0.3V to 9V ( LT; 10ns)

phase voltage, V phase. VBOOT-7V to VBOOT+0.3V

VBOOT-9V ( lt; 10ns) to vBoot+0.3V

wear voltage. V phase -0.3V (DC) to vBoot

V phase -5V ( lt; 20ns pulse width, 10 μJ) to vBoot

lgate voltage. Ground-0.3V (DC) to VCC+0.3V

ground-2.5V ( lt; 20ns pulse width, 5μJ) to VCC+0.3V

other input or output voltage. -0.3V to VCC+0.3V

Thermal resistance (Note 1, 2) θJa (degrees Celsius/tile) θjc (degrees Celsius/tile)

QFN package. 32 5

The highest knot temperature. +150 degrees Celsius

The highest storage temperature range. -65 ° C to+150 ° C

Lead -free return curve. See the link below

/pbfree/pb-freereflow.asp

Recommended operating conditions

Input voltage, vehicle recognition number, VFF. 3.3V to 20V ± 10%

Drive bias voltage, PVCC. 2.9 il to 5.5 volts

Signal bias voltage, VCC. 2.9 il to 5.5 volts

Start to phase voltage (overcharge), VBOOT-VPHASE. lt; 6 volts

Environmental temperature range. -40 ° C to+85 ° C

Concluding temperature range. -40 ° C to+125 ° C

Note: Do not run for a long time under the maximum rated value listed. Under these conditions, it may be reliable to the productAnd

causes failure within the range of warranty.

Note:

1. θja is measured in free air, which is installed on high -efficiency thermal guidance test boards with direct connection " characteristics.

2. θjc