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U6084B-FP

Description
PWM Power Control with Automatic Duty Cycle Reduction
CategoryPower/power management    The power supply circuit   
File Size179KB,10 Pages
ManufacturerAtmel (Microchip)
Download Datasheet Parametric View All

U6084B-FP Overview

PWM Power Control with Automatic Duty Cycle Reduction

U6084B-FP Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerAtmel (Microchip)
Parts packaging codeSOIC
package instructionSOP, SOP16,.25
Contacts16
Reach Compliance Codecompliant
ECCN codeEAR99
Is SamacsysN
Analog Integrated Circuits - Other TypesSWITCHING CONTROLLER
control modeCURRENT-MODE
JESD-30 codeR-PDSO-G16
JESD-609 codee0
length9.925 mm
Number of functions1
Number of terminals16
Maximum operating temperature110 °C
Minimum operating temperature-40 °C
Maximum output current0.001 A
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP16,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)NOT SPECIFIED
Certification statusNot Qualified
surface mountYES
Maximum switching frequency2 kHz
technologyBIPOLAR
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width3.8 mm
Base Number Matches1
Features
Pulse-width Modulation up to 2 kHz Clock Frequency
Protection against Short-circuit, Load-dump Overvoltage and Reverse V
S
Duty-cycle 0 to 100% Continuously
Output Stage for Power MOSFET
Interference and Damage Protection According to VDE 0839 and ISO/TR 7637/1
Charge-pump Noise Suppressed
Ground-wire Breakage Protection
Description
The U6084B is a PWM-IC with bipolar technology designed for the control of an
N-channel power MOSFET used as a high-side switch. The IC is ideal for use in the
brightness control (dimming) of lamps such as in dashboard applications. For constant
brightness, the preselected duty-cycle can be reduced automatically as a function of
the supply voltage.
Figure 1.
Block Diagram with External Circuit
C
5
16
9
Short circuit
latch monitoring
5
RC oscillator
6
C
1
PWM
Charge 13
pump
Logic
3
Control input
Output
C
3
47 nF
14
11
Current monitoring
+ short circuit detection
12
R
sh
V
Batt
PWM Power
Control with
Automatic
Duty-cycle
Reduction
U6084B
V
S
47 kΩ
C
2
Duty cycle
range
0-100%
Duty cycle
reduction
4
Voltage
monitoring
1
Enable/
disable
2
150
R
3
Ground
Rev. 4677B–AUTO–02/04
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