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PDF UAC3092 Data sheet ( Hoja de datos )
| Número de pieza | UAC3092 | |
| Descripción | ALTERNATOR VOLTAGE REGULATOR | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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UNISONIC TECHNOLOGIES CO., LTD
UAC3092
LINEAR INTEGRATED CIRCUIT
ALTERNATOR VOLTAGE
REGULATOR
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 N–channel MOSFET
transistor to control the average alternator field current.
SOP-20
SOP-24
FEATURE
*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
www.DataSheet4U.com
*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
*Pb-free plating product number: UAC3092L
ORDERING INFORMATION
Order Number
Normal
Lead Free Plating
UAC3092-S20-R
UAC3092L-S20-R
UAC3092-S20-T
UAC3092L-S20-T
UAC3092-S24-R
UAC3092L-S24-R
UAC3092-S24-T
UAC3092L-S24-T
Package
SOP-20
SOP-20
SOP-24
SOP-24
Packing
Tape Reel
Tube
Tape Reel
Tube
UAC3092L-S20-R
(1)Packing Type
(2)Package Type
(3)Lead Plating
(1) R: Tape Reel, T: Tube
(2) S20: SOP-20, S24: SOP-24
(3) L: Lead Free Plating, Blank: Pb/Sn
www.unisonic.com.tw
Copyright © 2005 Unisonic Technologies Co., Ltd
1 of 9
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UAC3092
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
UNIT
Power Supply Voltage
Vbat
24
Load Dump Transient Voltage (Note 1)
+Vmax
40
V
Negative Voltage (Note 2)
–Vmin
-2.5
Power Dissipation (Ta = 125 )
SOP-20
SOP-24
PD
867
1000
mW
mW
Operating Junction Temperature
TJ +150
C
Operating Ambient Temperature
TOPR
-40 ~ +125
C
Storage Temperature
Note: 1. 125 ms wide square wave pulse.
TSTG
-45 ~ +150
C
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.
ELECTRICAL CHARACTERISTICS (Ta=25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
DC CHARACTERISTICS
Regulation Voltage
(Determined by external resistor VReg
divider)
Regulation Voltage Temperature
Coefficient
Tc
Suggested Battery Voltage
Operating Range
Vbat
Power Up/Down Threshold
Voltage (Pin 3)
Vpwr
Standby Current
Vbat = 12.8 V, Ignition off, Ta = 25
IQ1
Vbat = 12.8 V, Ignition off,
IQ2 -40 Ta 125
Zero Temperature Coefficient
Reference Voltage, (Pin 8)
VREF0
Band Gap Reference Voltage
[Pin 20 (24**)]
VREF
Band Gap Reference
Temperature Coefficient
TC
Sense Loss Threshold (Pin 2)
Phase Detection Threshold
Voltage (Pin 10)
SLoss(TH)
PTH
Phase Rotation Detection
Frequency (Pin 10)
PPOT
Undervoltage Threshold [Pin 19
(23**)]
VUV
Overvoltage Threshold
(Pin 2, or Pin 12 if Pin 2 is not
used)
VOV
Load Dump Threshold
(Pin 2, or Pin 12 if Pin 2 is not
used)
VLD
MIN TYP MAX UNIT
14.85
V
-13 -11 -9.0 mV
11.5 14.85 16.5 V
0.5 1.2 2.0 V
1.3 2.0 mA
3.0 mA
1.1 1.25 1.4 V
1.7 2.0 2.3 V
-13 -11 -9.0 mV
0.6 1.0 V
1.0 1.25 1.5 V
36 Hz
1.0 1.25 1.5 V
1.09(VREF) 1.12(VREF) 1.16(VREF)
V
1.33(VREF) 1.4(VREF) 1.48(VREF)
V
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 9
QW-R101-017,B
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| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet UAC3092.PDF ] | |
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