Microchip MIC9131YM

Manufacturer No:

MIC9131YM

Manufacturer:

Microchip

Package:

16-SOIC (0.154, 3.90mm Width)

Description:

SO-16 High Vin Telecom DC/DC PWM Control

Quantity:

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In Stock :Available

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MIC9131YM information

Microchip MIC9131YM technical specifications, attributes, parameters and parts with similar specifications to Microchip MIC9131YM.

Type
Parameter

Current Limit / Short Circuit Protection
Yes

Max Duty Cycle (%)
0.75

Enable Pin
Yes

External Clock Sync
Yes

Input UVLO Typ (V)
1.22

Internal Voltage Bias
Yes

Iq Off (µA)
0.1

Input Voltage Max
180

Output Voltage Max
4.85

Input Voltage Min
9

Output Voltage Min
4.85

Operating Supply Current (mA)
1

Package
16/SOP, 16/QSOP

Soft Start
1

Supported Outputs
1

Supported Topologies
Forward,Flyback

Typical Tolerance (%)
±3

Download datasheets and manufacturer documentation for Microchip MIC9131YM.

Data Sheets:

1b25f8ec186fdb737654de52875cdf74.pdf

The MIC9131 is a current-mode PWM controller that efficiently converts -48V telecom voltages to logic levels. The MIC9131 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 MIC9131 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 MIC9131 is capable of high speed operation. Typically the MIC9131 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 MIC9131 is made safe by the very fast, 34ns response from current sense to output, minimizing power dissipation in a fault condition. The MIC9131 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 MIC9131 has a maximum duty cycle of 75%. For designs requiring a maximum duty cycle of 50%, refer to the MIC9130. The MIC9131 is available in a 16-pin SOP and 16-pin QSOP package options. The junction temperature range is from -40°C to +125°C.

Input voltages up to 180V
Internal oscillator capable of >2.5MHz operation
Accurate 75% maximum duty cycle
Synchronisation capability to 6MHz
Current sense delay of 34ns
Minimum pulse width of <25ns
90% efficiency
1.3mA quiescent current
1µA shutdown current
Soft-start
Resistor programmable current sense threshold
Selectable soft-start retry
4O sink, 12O source output driver
Programmable under-voltage lockout
Constant-frequency PWM current-mode control
16-pin SOIC and 16-pin QSOP

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