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MCP19115T

Digitally Enhanced Power Analog Synchronous Low-Side PWM Controller

Microchip Technology 

MCP19114/5

TABLE 1: 24-PIN SUMMARY

Basic

Additional

GPA0 1 Y AN0 —

GPA1 2 Y AN1 —

—

IOC

Y

—

IOC

Y

—

Analog/Digital Debug Output(1)

—

Sync Signal In/Out(2)

GPA2 3 Y AN2 T0CKI —

IOC

Y

—

—

INT

GPA3 4 Y AN3 —

—

IOC

Y

—

—

GPA5

7N

—

—

—

IOC(4) Y(5)

MCLR

Test Enable Input

GPA6

6N

—

—

—

IOC

Y ICSPDAT Dual Capture/Compare Input

GPA7

5N

—

—

SCL IOC

N ICSPCLK

—

GPB0 8 N

—

—

SDA IOC

N

GPB1 24 Y AN4 —

—

IOC

Y

DESATN 9 N

—

—

—

—

—

DESATP/ 10 N

—

—

—

—

—

ISOUT

ISP

11 N

—

—

—

—

Y

—

—

—

VREF2(3)

—

DESAT Negative Input

—

DESATP Input or ISOUT

Output(6)

—

Current Sense Amplifier Positive

Input

ISN

12 N

—

—

—

—

—

—

Current Sense Amplifier

Negative Input

IP

13 N

—

—

—

—

—

—

Primary Input Current Sense

AGND

14 N

—

—

—

—

—

AGND

Small Signal Ground

PGND

15 N

—

—

—

—

—

PGND

Large Signal Ground

SDRV 16 N

—

—

—

—

—

—

Secondary LS Gate Drive

Output

PDRV 17 N

—

—

—

—

—

—

Primary LS Gate Drive

Output

VDR

VDD

VIN

VS

IFB

ICOMP

Note 1:

18 N

—

—

—

—

—

VDR

19 N

—

—

—

—

—

VDD

20 N

—

—

—

—

—

VIN

21 N

—

—

—

—

—

—

Gate Drive Supply Voltage

VDD Output

Input Supply Voltage

Output Voltage Sense

22 N

—

—

—

—

—

—

Error Amplifier Feedback Input

23 N

—

—

—

—

—

—

Error Amplifier Output

The Analog/Digital Debug Output is selected through the control of the ABECON register.

2: Selected when functioning as master or slave by proper configuration of the MSC<1:0> bits in the

MODECON register.

3: VREF2 output selected when configured as master by proper configuration of the MSC<1:0> bits in the

MODECON register.

4: The IOC is disabled when MCLR is enabled.

5: Weak pull-up always enabled when MCLR is enabled, otherwise the pull-up is under user control.

6: When RFB of MODECON<5> = 0, the internal feedback resistor and DESATP input are enabled. When

RFB = 1, ISOUT is enabled.

 2014-2015 Microchip Technology Inc.

DS20005281B-page 3

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