DataSheetWiki


MC33129 fiches techniques PDF

Motorola Semiconductors - (MC33129 / MC34129) High Performance Current Mode Controller

Numéro de référence MC33129
Description (MC33129 / MC34129) High Performance Current Mode Controller
Fabricant Motorola Semiconductors 
Logo Motorola Semiconductors 





1 Page

No Preview Available !





MC33129 fiche technique
Order this document by MC34129/D
High Performance
Current Mode Controllers
The MC34129/MC33129 are high performance current mode switching
regulators specifically designed for use in low power digital telephone
applications. These integrated circuits feature a unique internal fault timer
that provides automatic restart for overload recovery. For enhanced system
efficiency, a start/run comparator is included to implement bootstrapped
operation of VCC. Other functions contained are a temperature compensated
reference, reference amplifier, fully accessible error amplifier, sawtooth
oscillator with sync input, pulse width modulator comparator, and a high
current totem pole driver ideally suited for driving a power MOSFET.
Also included are protective features consisting of soft–start,
undervoltage lockout, cycle–by–cycle current limiting, adjustable deadtime,
and a latch for single pulse metering.
Although these devices are primarily intended for use in digital telephone
systems, they can be used cost effectively in many other applications.
Current Mode Operation to 300 kHz
Automatic Feed Forward Compensation
Latching PWM for Cycle–by–Cycle Current Limiting
Continuous Retry after Fault Timeout
Soft–Start with Maximum Peak Switch Current Clamp
Internally Trimmed 2% Bandgap Reference
High Current Totem Pole Driver
Input Undervoltage Lockout
Low Startup and Operating Current
Direct Interface with Motorola SENSEFET Products
MC34129www.DataSheet4U.com
MC33129
HIGH PERFORMANCE
CURRENT MODE
CONTROLLERS
SEMICONDUCTOR
TECHNICAL DATA
14
1
P SUFFIX
PLASTIC PACKAGE
CASE 646
14
1
D SUFFIX
PLASTIC PACKAGE
CASE 751A
(SO–14)
PIN CONNECTIONS
CSoft–Start 12
7
Gnd
6
Vref 2.5V
5
RT/CT
Sync/Inhibit 4
Input
Simplified Block Diagram
Soft–Start
and
Fault Timer
Start/Run
13 Start/Run
Output
Undervoltage 14
Lockout
VCC
1.25V
Reference
8
Vref 1.25V
X2
Oscillator
Latching
PWM
Error Amp
9
+
10
Noninverting
Input
Inverting
11
Input
Feedback/
1 PWM Input
Drive Out
2
Drive Gnd
3
Ramp Input
Drive Output 1
Drive Ground 2
Ramp Input 3
Sync/Inhibit
Input
4
RT/CT 5
Vref 2.5 V 6
Gnd 7
14 VCC
13 Start/Run Output
12 CSoft–Start
Feedback/
11 PWM Input
10
Error Amp
Inverting Input
9 Error Amp
Noninverting Input
8 Vref 1.25 V
(Top View)
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
MC34129D
MC34129P
TA = 0° to +70°C
SO–14
Plastic DIP
MC33129D
TA = – 40° to +85°C
MC33129P
SO–14
Plastic DIP
MOTOROLA ANALOG IC DEVICE DATA
© Motorola, Inc. 1996
Rev 1
1

PagesPages 16
Télécharger [ MC33129 ]


Fiche technique recommandé

No Description détaillée Fabricant
MC33121 LOW VOLTAGE SUBSCRIBER LOOP INTERFACE CIRCUIT Motorola Semiconductors
Motorola Semiconductors
MC33128 POWER MANAGEMENT CONTROLLER Motorola Semiconductors
Motorola Semiconductors
MC33129 HIGH PERFORMANCE CURRENT MODE CONTROLLERS Motorola Semiconductors
Motorola Semiconductors
MC33129 (MC33129 / MC34129) High Performance Current Mode Controller Motorola Semiconductors
Motorola Semiconductors

US18650VTC5A

Lithium-Ion Battery

Sony
Sony
TSPC106

PCI Bus Bridge Memory Controller

ATMEL
ATMEL
TP9380

NPN SILICON RF POWER TRANSISTOR

Advanced Semiconductor
Advanced Semiconductor


www.DataSheetWiki.com    |   2020   |   Contactez-nous  |   Recherche