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MC33092A の電気的特性と機能

MC33092AのメーカーはMotorola Semiconductorsです、この部品の機能は「ALTERNATOR VOLTAGE REGULATOR」です。


製品の詳細 ( Datasheet PDF )

部品番号 MC33092A
部品説明 ALTERNATOR VOLTAGE REGULATOR
メーカ Motorola Semiconductors
ロゴ Motorola Semiconductors ロゴ 




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MC33092A Datasheet, MC33092A PDF,ピン配置, 機能
Order this document by MC33092A/D
Alternator Voltage Regulator
The MC33092A is specifically designed for voltage regulation and Load
Response Control (LRC) of diode rectified alternator charging systems, as
commonly found in automotive applications. The MC33092A provides load
response control of the alternator output current to eliminate engine speed
hunting and vibration due to sudden electrical loads which cause abrupt
torque loading of the engine at low RPM. Two load response rates are
selectable using Pin 11. The timing of the response rates is dependent on
the oscillator frequency.
In maintaining system voltage, the MC33092A 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.
Forced Load Response Control (LRC) with Heavy Load Transitions
at Low RPM
Capable of Regulating Voltage to ± 0.1 V @ 25°C
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
< 2.0 mA Standby Current from Battery @ 25°C
< 3.0 mA Standby Current from Battery Over Temperature Range
Optional 2.5 or 10 sec. LRC Rate Control (Osc. Freq. = 280 kHz)
Undervoltage, Overvoltage and Phase Fault (Broken Belt) Detection
MC33092A
ALTERNATOR VOLTAGE
REGULATOR
SEMICONDUCTOR
TECHNICAL DATA
20
1
DW SUFFIX
PLASTIC PACKAGE
CASE 751D
(SO–20L)
PIN CONNECTIONS
Simplified Block Diagram
FB UV Vref
1 19 20
Vref O
8
VCC1
14
2
Sense
(Remote)
Lost
Sense
Circuit
MC33092A
Signal
Combiner
and Switch
Low
Pass Buff
Filter
Bandgap
Reference
Bias
Power
Supply
Undervoltage
Load Dump
12
Supply
Reg
(Local)
X1
10
Phase
Counter
7
Osc.
Adjust
Oscillator
Prescaler
(24)
9
Oscillator
Overvoltage
Regulate
12
DAC
Counter 4
(28)
Control
Logic
Divide By
(1/12/48)
Output
Control
8
Up/Down
Counter
(24)
11
Rate
MOTOROLA ANALOG IC DEVICE DATA
VCC3
13
Charge
Pump
Power
Up/Down
Circuit
17
Gate
18
Source
3
Lamp
Coll.
Filter Buffer 1
Remote Sense 2
Lamp Collector 3
Lamp Base 4
Gnd
Oscillator
Adjust
Vref O
Oscillator
5
6
7
8
9
Phase 10
20 Vref
19 Undervoltage
18 Source
17 Gate
16 NC
15 Gnd
14 VCC1
13 VCC3
12
Supply
Regulation
11 Rate
(Top View)
Lamp
Control
Logic
4
Lamp
Base
5
Gnd
6 15
Gnd
ORDERING INFORMATION
Device
Operating
Temperature Range Package
MC33092ADW TA = – 35° to +125°C SO–20L
© Motorola, Inc. 1997
Rev 0
1

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MC33092A pdf, ピン配列
MC33092A
Figure 1.
MOTOROLA ANALOG IC DEVICE DATA
3


3Pages


MC33092A 電子部品, 半導体
MC33092A
PIN FUNCTION DESCRIPTION
Pin No.
Function
Description
1 FB
This pin provides a filtered result of the Sense input (if the Sense input is used) or the Supply
Regulation input (if the Sense input is not used).
2 Sense
The Sense input is a remote (Kelvin), low current battery voltage reference input used to give an
accurate representation of the true battery voltage. This input is also used to monitor overvoltage or
load dump conditions.
3 Lamp Collector and This pin connects to the collector of the transistor (Q2) used to drive the fault lamp. It is also used to
Power–Up/Down
sense a closed ignition switch (voltage sense) which then turns power on to the IC.
4 Lamp Base
The Lamp Base pin provides base current to the fault lamp drive transistor (Q2).
5 Ground
Grounded to provide a ground return for the fault lamp control logic circuit.
6, 15 Ground
IC ground reference pins.
7 Oscillator Adjust
8 * VrefO
A resistor to ground on this pin adjusts the internal oscillator frequency (see Figure 6).
This is a test point for the 1.1 V to 1.4 V reference voltage. It has a zero temperature coefficient. The
reference is used internally for phase signal and undervoltage detection.
9 * Oscillator
Test point for checking the operation of the internal oscillator.
10 Phase
The Phase input detects the existence of a magnetic field rotating within the alternator.
11 Rate
The Rate pin is used to select a slow mode (floating) or fast mode (ground) Load
Response Control recovery rate.
12 Supply Regulation
The voltage on the Supply Regulation pin is used as a representation of the alternator output
voltage. This input also used to monitor overvoltage or load dump conditions.
13
14
15, 6
VCC3
VCC1
Ground
Positive supply for the internal Charge Pump.
Positive supply for the entire IC except for the Charge Pump.
Ground reference for the IC.
16 N/C
No connection.
17 Gate
Controls the Gate of the MOSFET used to energize the field winding.
18 Source
Field winding control MOSFET source reference.
19 Undervoltage
If the voltage at this pin goes below 1.0 V, the fault lamp is guaranteed to turn on. The IC will
continue to function, but with limited performance.
20 * Vref
Test point for the 1.7 V to 2.3 V Bandgap reference voltage. This voltage has a negative
temperature coefficient of approximately –11 mV/°C.
*NOTE: Pins 8, 9 and 20 are test points only.
6 MOTOROLA ANALOG IC DEVICE DATA

6 Page



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共有リンク

Link :


部品番号部品説明メーカ
MC33092

LINEAR INTEGRATED CIRCUIT

Unisonic Technologies
Unisonic Technologies
MC33092A

ALTERNATOR VOLTAGE REGULATOR

Motorola Semiconductors
Motorola Semiconductors


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