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UAC3092

Features: *Forced Load Response Control (LRC) with Heavy Load Transitionsat Low RPM*Capable of Regulating Voltage to ±0.1 V @ 25*Operating Frequency Selectable with One External Resistor*< 0.1 V Variation over Speed Range of 2000 to 10,000 RPM*< 0.4 V Variation over 10% to 95% of Maximum Alt...

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UAC3092: Features: *Forced Load Response Control (LRC) with Heavy Load Transitionsat Low RPM*Capable of Regulating Voltage to ±0.1 V @ 25*Operating Frequency Selectable with One External Resistor*< 0.1 V ...

UAC3092 Data Sheet

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Part Number:
UAC3092
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

*Forced Load Response Control (LRC) with Heavy Load Transitions
at Low RPM
*Capable of Regulating Voltage to ±0.1 V @ 25
*Operating Frequency Selectable with One External Resistor
*< 0.1 V Variation over Speed Range of 2000 to 10,000 RPM
*< 0.4 V Variation over 10% to 95% of Maximum Alternator Output
*Maintains Regulation with External Loads as Low as 1.0 A
*Load Dump Protection of Lamp, Field Control Devices, and Loads
*Duty Cycle Limit Protection
*Provides High Side MOSFET Control of a Ground Referenced Field
Winding
*Controlled MOSFET and Flyback Diode Recovery Characteristics
for Minimum RFI
*Optional 2.5 or 10 sec. LRC Rate Control (Osc. Freq. = 280 kHz)
*Undervoltage, Overvoltage and Phase Fault (Broken Belt) Detection


Pinout

Connection Diagram


Specifications

PARAMETER
SYMBOL
RATINGS
UNIT
Power Supply Voltage
Load Dump Transient Voltage (Note 1)
Negative Voltage (Note 2)
Vbat
+Vmax
Vmin
24
40
-2.5
V
Power Dissipation (Ta = 125) SOP-20
PD
867
mW
SOP-24
1000
mW
Operating Junction Temperature
TJ
+150
Operating Ambient Temperature
TOPR
-40 ~ +125
Storage Temperature
TSTG
-45 ~ +150
Note: 1. 125 ms wide square wave pulse.
2. Maximum time = 2 minutes.
3. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.


Description

The UAC3092 is specifically designed for voltage regulation and Load Response Control (LRC) of diode rectified alternator charging systems, as commonly found in automotive applications.

In maintaining system voltage, the UAC3092 monitors and compares the system battery voltage to an externally programmed set point value and pulse width modulates an Nchannel MOSFET transistor to control the average alternator field current.




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