MCP19111
Digitally Enhanced Power Analog Controller
with Integrated Synchronous Driver
Synchronous Buck Features:
•
•
•
•
•
Input Voltage: 4.5V to 32V
Output Voltage: 0.5V to 3.6V
Switching Frequency: 100 kHz to 1.6 MHz
Quiescent Current: 5 mA Typical
High-Drive:
- +5V Gate Drive
- 1A/2A Source Current
- 1A/2A Sink Current
Low-Drive:
- +5V Gate Drive
- 2A Source Current
- 4A Sink Current
Peak Current Mode Control
Differential Remote Output Sense
Multi-Phase Systems:
- Master or Slave
- Frequency Synchronized
- Common Error Signal
Multiple Output Systems:
- Master or Slave
- Frequency Synchronized
Configureable Parameters:
- Overcurrent Limit
- Input Under Voltage Lockout
- Output Overvoltage
- Output Under Voltage
- Internal Analog Compensation
- Soft Start Profile
- Synchronous Driver Dead Time
- Switching Frequency
Thermal Shutdown
Microcontroller Features:
• Precision 8 MHz Internal Oscillator Block:
- Factory Calibrated
• Interrupt Capable
- Firmware
- Interrupt-on-Change Pins
• Only 35 Instructions to Learn
• 4096 Words On-Chip Program Memory
• High Endurance Flash:
- 100,000 write Flash Endurance
- Flash Retention: >40 years
• Watchdog Timer (WDT) with Independent
Oscillator for Reliable Operation
• Programmable Code Protection
• In-Circuit Debug (ICD) via Two Pins
• In-Circuit Serial Programming™ (ICSP™) via Two
Pins
• 14 I/O Pins and One Input-Only Pin
- 3 Open Drain Pins
• Analog-to-Digital Converter (ADC):
- 10-bit Resolution
- 12 Internal Channels
- 8 External Channels
• Timer0: 8-bit Timer/Counter with 8-Bit Prescaler
• Enhanced Timer1:
- 16-bit Timer/Counter with Prescaler
- 2 Selectable Clock Sources
• Timer2: 8-Bit Timer/Counter with Prescaler
- 8-bit Period Register
• I
2
C
TM
Communication:
- 7-bit Address Masking
- 2 Dedicated Address Registers
- SMBus/PMBus
TM
Compatibility
•
•
•
•
•
•
•
2013 Microchip Technology Inc.
DS22331A-page 1
MCP19111
Pin Diagram – 28-Pin QFN (MCP19111)
GPB5
GPB2
GPB1
+V
SEN
-V
SEN
+I
SEN
23
-I
SEN
22
21
20
19
MCP19111
18
17
16
EXP-29
10
12
13
14
11
GPA6
7
8
9
15
LDRV
28
27
26
25
GPA0
GPA1
GPA2
GPB4
GPA3
GPA7
1
2
3
4
5
6
24
GPB6
V
DD
BOOT
HDRV
PHASE
V
DR
GPA4
GPA5/MCLR
GPB0
GPB7
P
GND
GND
V
IN
DS22331A-page 2
2013 Microchip Technology Inc.
MCP19111
TABLE 1:
28-Pin QFN
28-PIN SUMMARY
Interrupt
Pull-up
ANSEL
Timers
MSSP
A/D
I/O
Basic
Additional
GPA0
GPA1
GPA2
GPA3
GPA4
GPA5
GPA6
GPA7
GPB0
GPB1
GPB2
GPB4
GPB5
GPB6
GPB7
V
IN
V
DR
V
DD
GND
P
GND
LDRV
HDRV
PHASE
BOOT
+V
SEN
-V
SEN
+I
SEN
-I
SEN
Note 1:
2:
3:
4:
5:
1
2
3
5
9
8
7
6
10
26
28
4
27
21
11
13
16
20
12
14
15
18
17
19
24
25
23
22
Y
Y
Y
Y
N
N
N
N
N
Y
Y
Y
Y
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
AN0
AN1
AN2
AN3
—
—
—
—
—
AN4
AN5
AN6
AN7
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
T0CKI
—
—
—
—
IOC
IOC
IOC
INT
IOC
IOC
IOC
(4)
IOC
IOC
IOC
IOC
IOC
IOC
IOC
IOC
IOC
—
—
—
—
—
—
—
—
—
—
—
—
—
Y
Y
Y
Y
N
Y
(5)
N
N
N
Y
Y
Y
Y
Y
Y
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
MCLR
—
—
—
—
—
ICSPDAT
ICDDAT
ICSPCLK
ICDCLK
—
—
V
IN
V
DR
V
DD
GND
—
—
—
—
—
—
—
—
—
Analog Debug Output
(1)
Sync Signal In/Out
(2,
3)
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
SCL
SDA
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Error Signal In/Out
(3)
—
—
Alternate Sync
Signal In/Out
(2,
3)
—
—
Device Input Voltage
Gate Drive Supply Input
Voltage
Internal Regulator Output
Small Signal Ground
Large Signal Ground
Low-Side MOSFET
Connection
High-Side MOSFET
Connection
Switch Node
Floating Bootstrap Supply
Output Voltage
Differential Sense
Output Voltage
Differential Sense
Current Sense Input
Current Sense Input
The Analog Debug Output is selected when the ATSTCON<BNCHEN> bit is set.
Selected when device is functioning as multiple output master or slave by proper configuration of the MLTPH<2:0> bits
in the BUFFCON register.
Selected when device is functioning as multi-phase master or slave by proper configuration of the MLTPH<2:0> bits in
the BUFFCON register.
The IOC is disabled when MCLR is enabled.
Weak pull-up always enabled when MCLR is enabled, otherwise the pull-up is under user control.
2013 Microchip Technology Inc.
DS22331A-page 3
MCP19111
Table of Contents
1.0 Device Overview .......................................................................................................................................................................... 7
2.0 Pin Description ........................................................................................................................................................................... 10
3.0 Functional Description ................................................................................................................................................................ 15
4.0 Electrical Characteristics ............................................................................................................................................................ 21
5.0 Digital Electrical Characteristics ................................................................................................................................................. 27
6.0 Configuring the MCP19111......................................................................................................................................................... 35
7.0 Typical Performance Curves ...................................................................................................................................................... 51
8.0 System Bench Testing ................................................................................................................................................................ 55
9.0 Device Calibration ...................................................................................................................................................................... 57
10.0 Relative Efficiency Measurement ............................................................................................................................................... 65
11.0 Memory Organization ................................................................................................................................................................. 67
12.0 Device Configuration .................................................................................................................................................................. 79
13.0 Oscillator Modes......................................................................................................................................................................... 81
14.0 Resets ........................................................................................................................................................................................ 83
15.0 Interrupts .................................................................................................................................................................................... 91
16.0 Power-Down Mode (Sleep) ........................................................................................................................................................ 99
17.0 Watchdog Timer (WDT)............................................................................................................................................................ 101
18.0 Flash Program Memory Control ............................................................................................................................................... 103
19.0 I/O Ports ................................................................................................................................................................................... 109
20.0 Interrupt-On-Change .................................................................................................................................................................119
21.0 Internal Temperature Indicator Module..................................................................................................................................... 121
22.0 Analog-to-Digital Converter (ADC) Module .............................................................................................................................. 123
23.0 Timer0 Module.......................................................................................................................................................................... 133
24.0 Timer1 Module with Gate Control............................................................................................................................................. 135
25.0 Timer2 Module.......................................................................................................................................................................... 138
26.0 PWM Module............................................................................................................................................................................ 141
27.0 Master Synchronous Serial Port (MSSP) Module .................................................................................................................... 145
28.0 In-Circuit Serial Programming™ (ICSP™) ............................................................................................................................... 189
29.0 Instruction Set Summary .......................................................................................................................................................... 191
30.0 Development Support............................................................................................................................................................... 201
31.0 Packaging Information.............................................................................................................................................................. 205
Appendix A: Revision History............................................................................................................................................................. 209
Index ...................................................................................................................................................................................................211
The Microchip Web Site ..................................................................................................................................................................... 217
Customer Change Notification Service .............................................................................................................................................. 217
Customer Support .............................................................................................................................................................................. 217
Reader Response .............................................................................................................................................................................. 218
Product Identification System............................................................................................................................................................. 219
DS22331A-page 4
2013 Microchip Technology Inc.
MCP19111
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2013 Microchip Technology Inc.
DS22331A-page 5
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