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8551502VA

Description
Switching Controller, Voltage-mode, 0.2A, 550kHz Switching Freq-Max, BIPolar, CDIP18, CERAMIC, DIP-18
CategoryPower/power management    The power supply circuit   
File Size642KB,12 Pages
ManufacturerUnitrode Corporation
Download Datasheet Parametric Compare View All

8551502VA Overview

Switching Controller, Voltage-mode, 0.2A, 550kHz Switching Freq-Max, BIPolar, CDIP18, CERAMIC, DIP-18

8551502VA Parametric

Parameter NameAttribute value
package instruction,
Reach Compliance Codeunknown
Analog Integrated Circuits - Other TypesSWITCHING CONTROLLER
control modeVOLTAGE-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage35 V
Minimum input voltage7 V
Nominal input voltage15 V
JESD-30 codeR-GDIP-T18
Number of functions1
Number of terminals18
Maximum operating temperature125 °C
Minimum operating temperature-55 °C
Maximum output current0.2 A
Package body materialCERAMIC, GLASS-SEALED
Package shapeRECTANGULAR
Package formIN-LINE
Certification statusNot Qualified
Maximum supply current (Isup)20 mA
surface mountNO
Switch configurationPUSH-PULL
Maximum switching frequency550 kHz
technologyBIPOLAR
Temperature levelMILITARY
Terminal formTHROUGH-HOLE
Terminal locationDUAL
Base Number Matches1
UC1526A
UC2526A
UC3526A
Regulating Pulse Width Modulator
FEATURES
Reduced Supply Current
Oscillator Frequency to 600kHz
Precision Band-Gap Reference
7 to 35V Operation
Dual 200mA Source/Sink Outputs
Minimum Output Cross-Conduction
Double-Pulse Suppression Logic
Under-Voltage Lockout
Programmable Soft-Start
Thermal Shutdown
TTL/CMOS Compatible Logic Ports
5 Volt Operation (V
IN
= V
C
= V
REF
= 5.0V)
DESCRIPTION
The UC1526A Series are improved-performance pulse-width modu-
lator circuits intended for direct replacement of equivalent non- “A”
versions in all applications. Higher frequency operation has been
enhanced by several significant improvements including: a more ac-
curate oscillator with less minimum dead time, reduced circuit de-
lays (particularly in current limiting), and an improved output stage
with negligible cross-conduction current. Additional improvements
include the incorporation of a precision, band-gap reference gener-
ator, reduced overall supply current, and the addition of thermal
shutdown protection.
Along with these improvements, the UC1526A Series retains the
protective features of under-voltage lockout, soft-start, digital cur-
rent limiting, double pulse suppression logic, and adjustable
deadtime. For ease of interfacing, all digital control ports are TTL
compatible with active low logic.
Five volt (5V) operation is possible for “logic level” applications by
connecting V
IN,
V
C
and V
REF
to a precision 5V input supply. Consult
factory for additional information.
BLOCK DIAGRAM
6/93

8551502VA Related Products

8551502VA 5962-8670406XA 5962-8992002VA 85515022A
Description Switching Controller, Voltage-mode, 0.2A, 550kHz Switching Freq-Max, BIPolar, CDIP18, CERAMIC, DIP-18 Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CQCC20, LCC-20 Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, CDIP18, CERAMIC, DIP-18 Switching Controller, Voltage-mode, 550kHz Switching Freq-Max, CQCC20, LCC-20
Reach Compliance Code unknown unknown unknown unknown
Analog Integrated Circuits - Other Types SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER SWITCHING CONTROLLER
control mode VOLTAGE-MODE CURRENT-MODE CURRENT-MODE VOLTAGE-MODE
Control Technology PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Maximum input voltage 35 V 25 V 30 V 35 V
Minimum input voltage 7 V 12 V 8 V 7 V
Nominal input voltage 15 V 15 V 20 V 15 V
JESD-30 code R-GDIP-T18 S-CQCC-N20 R-GDIP-T18 S-CQCC-N20
Number of functions 1 1 1 1
Number of terminals 18 20 18 20
Maximum operating temperature 125 °C 125 °C 125 °C 125 °C
Minimum operating temperature -55 °C -55 °C -55 °C -55 °C
Package body material CERAMIC, GLASS-SEALED CERAMIC, METAL-SEALED COFIRED CERAMIC, GLASS-SEALED CERAMIC, METAL-SEALED COFIRED
Package shape RECTANGULAR SQUARE RECTANGULAR SQUARE
Package form IN-LINE CHIP CARRIER IN-LINE CHIP CARRIER
Certification status Not Qualified Not Qualified Not Qualified Not Qualified
surface mount NO YES NO YES
Switch configuration PUSH-PULL SINGLE SINGLE PUSH-PULL
Maximum switching frequency 550 kHz 500 kHz 500 kHz 550 kHz
Temperature level MILITARY MILITARY MILITARY MILITARY
Terminal form THROUGH-HOLE NO LEAD THROUGH-HOLE NO LEAD
Terminal location DUAL QUAD DUAL QUAD
Maximum output current 0.2 A 1 A 1 A -
Maximum supply current (Isup) 20 mA 17 mA 14 mA -
technology BIPOLAR BIPOLAR BIPOLAR -
Base Number Matches 1 1 1 -
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