Power Tool Block Diagram

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Power Tool

Power Supply Block Power Supply Block Reset Block Currnt Sensor

(DC/DC) Power Supply Block

products Features
R1260 60V Input Absolute Maximum Rating Synchronous Step-down DC/DC Controller
R1245 1.2A 30V Input PWM Step-down DC/DC Converter
R1243 2A 30V Input PWM Step-down DC/DC Converter
R1270 3A 34V Input PWM/VFM Step-down DC/DC Converter with PLL Synchronization
R1276 3A 30V Input Step-down DC/DC Converter with Synchronous Rectifier
R1271 30 V, 1 A Synchronous PWM Step-down DC/DC Converter

(LDO) Power Supply Block

products Features
R1560 Low Supply Current 60V Input 100mA Voltage Regulator
R1525 High Noise Immunity Low Supply Current 42V Input 200mA Voltage Regulator
R1526 High Noise Immunity 42V Input 300mA Voltage Regulator
R1524 Low Supply Current 36V Input 200mA Voltage Regulator
NJM2831 Low Dropout Voltage Regulator

(System Reset IC) Reset Block

products Features
NJU2103A System Reset IC
R3116 0.8% Accuracy 0.5V Operating Voltage Detector with Delay Function
R3117 Voltage Detector with SENSE pin
R3118 Low Voltage Detector with Individual SENSE Pin and Delay Function
RP300 0.8% Accuracy Voltage Detector with Delay Function (Internal Counter Type)
R3160 Low Supply Current 60V Input Voltage Detector

(Op-Amp.) Current Sensor

products Features
NJU7046 9V/µs High-Speed, Rail-to-Rail I/O CMOS Operational Amplifier
NJU7076 Precision, Low Noise, Rail-to-Rail Output, Excellent EMI Immunity, CMOS Operational Amplifiers
NJU7098A 0.05µV/°C max, Zero-Drift, Single Supply Rail-to-Rail Output CMOS Operational Amplifier

(Comparator) Current Sensor

products Features
NJU77241 Rail-to-Rail Input Open-Drain Output Low power CMOS Comparators