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MIC9130BQSTR

Description
Switching Controller, Current-mode, 0.005A, 2500kHz Switching Freq-Max, BCDMOS, PDSO16, QSOP-16
CategoryPower/power management    The power supply circuit   
File Size251KB,19 Pages
ManufacturerMicrel ( Microchip )
Websitehttps://www.microchip.com
Download Datasheet Parametric View All

MIC9130BQSTR Overview

Switching Controller, Current-mode, 0.005A, 2500kHz Switching Freq-Max, BCDMOS, PDSO16, QSOP-16

MIC9130BQSTR Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
Parts packaging codeSOIC
package instructionSSOP, SSOP16,.25
Contacts16
Reach Compliance Codeunknown
ECCN codeEAR99
Analog Integrated Circuits - Other TypesSWITCHING CONTROLLER
control modeCURRENT-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage18 V
Minimum input voltage9 V
Nominal input voltage10 V
JESD-30 codeR-PDSO-G16
length4.9 mm
Humidity sensitivity level1
Number of functions1
Number of terminals16
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Maximum output current0.005 A
Package body materialPLASTIC/EPOXY
encapsulated codeSSOP
Encapsulate equivalent codeSSOP16,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)225
Certification statusNot Qualified
Maximum seat height1.73 mm
surface mountYES
Switch configurationSINGLE
Maximum switching frequency2500 kHz
technologyBCDMOS
Temperature levelAUTOMOTIVE
Terminal formGULL WING
Terminal pitch0.635 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width3.9 mm
Base Number Matches1
MIC9130
Micrel, Inc.
MIC9130
High-Voltage, High-Speed Telecom DC-to-DC Controller
General Description
The MIC9130 is a current-mode PWM controller that efficiently
converts –48V telecom voltages to logic levels. The MIC9130
features a high voltage start-up circuit that allows the device to
be connected to input voltages as high as 180V. The high input
voltage capability protects the MIC9130 from line transients
that are common in telecom systems. The start-up circuitry
also saves valuable board space and simplifies designs by
integrating several external components.
The MIC9130 is capable of high speed operation. Typically
the MIC9130 can control a sub-25ns pulse width on the gate
out pin. Its internal oscillator can operate over 2.5MHz, with
even higher frequencies available through synchronisation.
The high speed operation of the MIC9130 is made safe by
the very fast, 34ns response from current sense to output,
minimizing power dissipation in a fault condition.
The MIC9130 allows for the designs of high efficiency power
supplies. It can achieve efficiencies over 90% at high output
currents. Its low 1.3mA quiescent current allows high efficiency
even at light loads.
The MIC9130 has a maximum duty cycle of 50%. For de-
signs requiring a high duty cycle, refer to the MIC9131. The
MIC9130 is available in a 16-pin SOP and 16-pin QSOP
package options. The rated junction temperature range is
from –40°C to +125°C.
Features
Input voltages up to 180V
Internal oscillator capable of >2.5MHz operation
Synchronisation capability to 4MHz
Current sense delay of 34ns
Minimum pulse width <25ns
90% efficiency
1.3mA quiescent current
1μA shutdown current
Soft-start
Resistor programmable current sense threshold
Selectable soft-start retry
4Ω sink, 12Ω source output driver
Programmable under-voltage lockout
Constant-frequency PWM current-mode control
16-pin SOIC and 16-pin QSOP
Applications
Telecom power supplies
Line cards
ISDN network terminators
Micro- and pico-cell base stations
Low power (< 30W) dc-dc converters
Typical Application
12V
MBR0540
40V/0.5A
20Ω
N=5
T1
1μF
16V
VIN
36V to 72V
1M
0.1μF
N = 20
N=4
Si4800DY
B330
38.3k
13
1
2
10
2.5μH
VOUT
3.3V @ 4A
330μF (x2)
6.3V
UVLO
LINE
VCC
20k
7
6
1.21k
FB
COMP
SYNC
CPWR
RBIAS
SS
VBIAS
OSC
4
EN
Si4884DY
5
8
3
OUT
MIC9130
16
FQD10N20
0.2Ω
200V
Slope
Compensation
ISNS
14
332k
12
9
332k
0.1μF
AGND
11
PGND
15
0.2Ω
1W
4.75k
10nF
47pF
OPTO
FEEDBACK
1.5MHz DSL Power Supply
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
November 2008
1
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