UC3637N Dual 100mA Power IC Chip , Multi Cell H Bridge Motor Driver
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UC3637N Power Path Management IC Motor / Motion / Ignition Controllers & Drivers Switched Mode Controller
1 FEATURES
2 DESCRIPTION The UC1637 is a pulse width modulator circuit intended to be used for a variety of PWM motor drive and amplifier applications requiring either uni-directional or bi- directional drive circuits. When used to replace conventional drivers, this circuit can increase efficiency and reduce component costs for many applications. All necessary circuitry is included to generate an analog error signal and modulate two bi-directional pulse train outputs in proportion to the error signal magnitude and polarity. This monolithic device contains a sawtooth oscillator, error amplifier, and two PWM comparators with ±100mA output stages as standard features. Protection circuitry includes under-voltage lockout, pulse-by-pulse current limiting, and a shutdown port with a 2.5V temperature compensated threshold. The UC1637 is characterized for operation over the full military temperature range of -55°C to +125°C, while the UC2637 and UC3637 are characterized for -25°C to +85°C and 0°C to +70°C, respectively.
3 ABSOLUTE MAXIMUM RATINGS OutputCurrent,Source/Sink(Pins4,7)................................... 500mA Analog Inputs (Pins 1, 2, 3, 8, 9, 10, 11 12, 13, 14, 15, 16) . . . . . . . . . . . . . . . . . . . . . . . ±Vs ErrorAmplifierOutputCurrent(Pin17) ................................... ±20mA OscillatorChargingCurrent(Pin18)....................................... -2mA PowerDissipationatTA =25°C(Note2) ................................ 1000mW PowerDissipationatTC=25°C(Note2)................................ 2000mW StorageTemperatureRange ................................... -65°Cto+150°C Lead Temperature (Soldering, 10 Seconds). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300°C |
Product Tags: microchip battery management power management integrated circuit |
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