NCP1597BMNTXG ONSEMI [ON Semiconductor], NCP1597BMNTXG Datasheet
NCP1597BMNTXG
Related parts for NCP1597BMNTXG
NCP1597BMNTXG Summary of contents
Page 1
... AGND (Top View) ORDERING INFORMATION Device Package NCP1597BMNTWG DFN10 (Pb−Free) NCP1597BMNTXG DFN10 (Pb−Free) †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. 1 Publication Order Number: MARKING DIAGRAM ...
Page 2
NCP1597B VCC Power Reset UVLO EN THD Hiccup Soft−Start + gm Vref + FB − AGND PIN DESCRIPTIONS Pin No Symbol 1 EN Logic input to enable the part. Logic high turns on the part and a logic low disables ...
Page 3
V in 4.0 V − 5.5 V ABSOLUTE MAXIMUM RATINGS Rating Power Supply Pin (Pin GND LX to GND All other pins Operating Temperature Range Junction Temperature Storage Temperature Range Pkg Power Dissipation (T = +25°C) A ...
Page 4
ELECTRICAL CHARACTERISTICS (V = 4.0 V − +25°C for typical value; −40°C < out J Parameter V Input Voltage Range in V UVLO Threshold CC UVLO Hysteresis V Quiescent Current ...
Page 5
Overview The NCP1597B is a synchronous PWM controller that incorporates all the control and protection circuitry necessary to satisfy a wide range of applications. The NCP1597B employs current mode control to provide fast transient response, simple compensation, and excellent stability. ...
Page 6
Undervoltage Lockout (UVLO) The under voltage lockout feature prevents the controller from switching when the input voltage is too low to power the internal power supplies and reference. Hysteresis must be incorporated in the UVLO comparator to prevent IxR drops ...
Page 7
Programming the Output Voltage The output voltage is set using a resistive voltage divider from the output voltage to FB pin (see Figure 3). So the output voltage is calculated according to Eq. ...
Page 8
Calculate the power lost in the NCP1597B using the following equations: 1. High side MOSFET The conduction loss in the top switch is HSON RMS_HSFET Where out RMS_FET DI is ...
Page 9
D Ç Ç Ç Ç Ç Ç PIN 1 REFERENCE Ç Ç Ç 2X 0.15 C Ç Ç Ç TOP VIEW 2X 0.15 C (A3) DETAIL B 0.10 C 10X 0.08 C SIDE VIEW 10X 1 5 ...