MCP1631-E/ML Microchip Technology, MCP1631-E/ML Datasheet

IC,SMPS CONTROLLER,CURRENT-MODE,LLCC,20PIN,PLASTIC

MCP1631-E/ML

Manufacturer Part Number
MCP1631-E/ML
Description
IC,SMPS CONTROLLER,CURRENT-MODE,LLCC,20PIN,PLASTIC
Manufacturer
Microchip Technology
Datasheet

Specifications of MCP1631-E/ML

Pwm Type
Current Mode
Number Of Outputs
1
Frequency - Max
2MHz
Duty Cycle
10%
Voltage - Supply
3 V ~ 5.5 V
Buck
Yes
Boost
No
Flyback
No
Inverting
No
Doubler
No
Divider
No
Cuk
No
Isolated
Yes
Operating Temperature
-40°C ~ 125°C
Package / Case
20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
Frequency-max
2MHz
Output Voltage
3.3 V to 5 V
Output Current
250 mA
Input Voltage
3 V to 5.5 V
Switching Frequency
2 MHz
Operating Temperature Range
- 40 C to + 125 C
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
• Programmable Switching Battery Charger
• High-Speed Analog PWM Controller (2 MHz
• Combine with Microcontroller for “Intelligent”
• Peak Current Mode Control (MCP1631)
• Voltage Mode Control (MCP1631V)
• High Voltage Options Operate to +16V Input:
• Regulated Output Voltage Options:
• External Oscillator Input sets Switching
• External Reference Input Sets Regulation Voltage
• Error Amplifier, Battery Current I
• Integrated Overvoltage Comparator
• Integrated High Current Low Side MOSFET
• Shutdown mode reduces IQ to 2.4 µA (typical)
• Internal Overtemperature Protection
• Undervoltage Lockout (UVLO)
• Package Options:
Applications
• High Input Voltage Programmable Switching
• Supports Multiple Chemistries Li-Ion, NiMH, NiCd
• LED Lighting Applications
• Constant Current SEPIC Power Train Design
• USB Input Programmable Switching Battery
© 2007 Microchip Technology Inc.
Designs
Operation)
Power System Development
- MCP1631HV Current Mode
- MCP1631VHV Voltage Mode
-
-
Frequency and Maximum Duty Cycle Limit
or Current
Battery Voltage V
Driver (1A Peak)
- 4 mm x 4 mm 20-Lead QFN
- 20-Lead TSSOP (All Devices)
- 20-Lead SSOP (All Devices)
Battery Chargers
Intelligent and Pb-Acid
Chargers
(MCP1631/MCP1631V only)
+5.0V or +3.3V
250 mA maximum current
SNS
High-Speed, Pulse Width Modulator
Amplifier Integrated
MCP1631/HV/MCP1631V/VHV
SNS
Amplifier,
General Description
The MCP1631/MCP1631V is a high-speed microcon-
troller based pulse width modulator (PWM) used to
develop intelligent power systems. When combined
with a microcontroller, the MCP1631/MCP1631V will
control the power system duty cycle providing output
voltage or current regulation. The microcontroller can
be used to adjust output voltage or current, switching
frequency and maximum duty cycle while providing
additional features making the power system more
intelligent, robust and adaptable.
Typical applications for the MCP1631/MCP1631V
include programmable switch mode battery chargers
capable of charging multiple chemistries, like Li-Ion,
NiMH, NiCd and Pb-Acid configured as single or
multiple cells. By combining with a small microcontrol-
ler, intelligent LED lighting designs and programmable
SEPIC topology voltage and current sources can also
be developed.
The MCP1631/MCP1631V inputs were developed to
be attached to the I/O pins of a microcontroller for
design flexibility. Additional features integrated into the
MCP1631HV/MCP1631VHV provide signal condition-
ing and protection features for battery charger or
constant current source applications.
For applications that operate from a high voltage input,
the MCP1631HV and MCP1631VHV device options
can be used to operate directly from a +3.5V to +16V
input. For these applications, an additional low drop out
+5V or +3.3V regulated output is available and can
provide current up to 250 mA to power a microcontrol-
ler and auxiliary circuits.
DS22063A-page 1

Related parts for MCP1631-E/ML

MCP1631-E/ML Summary of contents

Page 1

... For applications that operate from a high voltage input, the MCP1631HV and MCP1631VHV device options can be used to operate directly from a +3.5V to +16V input. For these applications, an additional low drop out +5V or +3.3V regulated output is available and can provide current up to 250 mA to power a microcontrol- ler and auxiliary circuits ...

Page 2

... V 1 EXT SHDN VDD 18 CS/V OSC 3 RAMP OSC 4 DIS COMP OUT REF OUT GND VDD_IN 20-Lead 4x4 QFN MCP1631/MCP1631V 20 V EXT 19 P VDD 18 CS/V RAMP 17 FB COMP OUT 14 VS OUT VDD_OUT P GND V EXT P VDD NC CS/V RAMP © 2007 Microchip Technology Inc. ...

Page 3

... VDD OSC OUT SHDN OSC COMP VS A GND PIC12F683 V GP1/C DD CCP1 GP3 GP4 GP5 GND GP0/C © 2007 Microchip Technology Inc. MCP1631/HV/MCP1631V/VHV Multi-cell, Multi-Chemistry Charger SCHOTTKY C C DIODE L1A L1B EXT CS GND REF DIS OUT R R THERM C OUT C A VDD_OUT DS22063A-page 3 ...

Page 4

... Note 1: For Shutdown control, amplifier A3 remains functional so battery voltage can be sensed during discharge phase. 2: For HV options, internal Low Drop Out Regulator provides +3.3V or +5.0V bias to V DS22063A-page 4 Internal Regulator for MCP1631HV and MCP1631VHV Options Only; For MCP1631 and MCP1631V AV V Internal DD 1.2V V REF ...

Page 5

... ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings † GND (MCP1631/V)................................................+6. GND (MCP1631HV/VHV)....................................+18.0V IN All Other I/O ..............................(GND - 0.3V GND............................................. -0. Output Short Circuit Current ........................ Continuous EXT Storage temperature .....................................-65°C to +150°C Maximum Junction Temperature ...................-40°C to +150°C Operating Junction Temperature...................-40°C to +125°C ESD Protection On All Pins: HBM ...

Page 6

... MCP1631/HV/MCP1631V/VHV DC CHARACTERISTICS (CONTINUED) Electrical Specifications: Unless otherwise noted for typical values = 5.0V, T for typical values = +25° Parameters Sym External Reference Input Reference Voltage Input V REF Internal Driver) R P-channel R DSON DSon_P R N-channel R DSON DSon_N V Rise Time T EXT RISE V Fall Time T EXT FALL ...

Page 7

... TCV 5: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its measured value with an applied input voltage of V © 2007 Microchip Technology Inc. MCP1631/HV/MCP1631V/VHV = 3.0V to 5.5V MHz with 10% Duty Cycle OSC = -40° ...

Page 8

... MCP1631/HV/MCP1631V/VHV DC CHARACTERISTICS (CONTINUED) Electrical Specifications: Unless otherwise noted for typical values = 5.0V, T for typical values = +25° Parameters Sym ΔV Line Regulation OUT (V OUT V IN ΔV Load Regulation OUT V OUT Dropout Voltage V DROPOUT Note 2, Note 5 Output Delay Time T DELAY Output Noise e N Power Supply Ripple Rejection ...

Page 9

... Microchip Technology Inc. MCP1631/HV/MCP1631V/VHV = 1 MHz with 10% Duty Cycle, C OSC 4.00 3.70 3.40 3.10 2.80 2.50 2.20 1.90 1.60 1.30 1.00 FIGURE 2-4: Temperature (MCP1631/MCP1631V). 1.60 1.50 1.40 1.30 1.20 1.10 1.00 FIGURE 2-5: vs. Temperature. 1.70 1.60 = +5.5V DD 1.50 1.40 1 ...

Page 10

... MCP1631/HV/MCP1631V/VHV Typical Performance Curves (Continued) Note: Unless otherwise noted 3.0V to 5.5V for typical values = 5.0V, T for typical values = +25° +3. +3. +5. +5. Ambient Temperature (°C) FIGURE 2-7: V P-Channel Driver EXT R vs. Temperature. DSON 6.6 6.2 5 +3. +3.0V DD 5.0 4.6 4.2 3 ...

Page 11

... FIGURE 2-14: Amplifier A1 Source Current vs. Temperature. 1 +5.5V DD 1.4 1 +5. +4. +3.3V 0 +3.0V DD 0.4 Ambient Temperature (°C) FIGURE 2-15: Amplifier A2 Offset Voltage vs. Temperature. © 2007 Microchip Technology Inc. MCP1631/HV/MCP1631V/VHV = 1 MHz with 10% Duty Cycle, C OSC FIGURE 2-16: Low vs. Temperature +3. +5. +5. FIGURE 2-17: vs ...

Page 12

... FIGURE 2-24: MCP1631VHV V = 0.1 µ +5. +5. +3. +3. +4.0V DD Ambient Temperature (°C) Amplifier A3 Source Current V = +5. +5. +4. +3. +3.3V DD Ambient Temperature (°C) MCP1631 and MCP1631HV V = +5.0V DD Ambient Temperature (°C) MCP1631V and Max Voltage (V). RAMP © 2007 Microchip Technology Inc. ...

Page 13

... V = +4.0V DD 0.030 V = +3.0V V 0.020 DD DD 0.010 0.000 Ambient Temperature (°C) FIGURE 2-27: Overvoltage Threshold Hysteresis (V) vs. Temperature. © 2007 Microchip Technology Inc. MCP1631/HV/MCP1631V/VHV = 1 MHz with 10% Duty Cycle, C OSC 1.7 1.6 1 +4.0V DD 1.4 1.3 1.2 1.1 1.0 0.9 0.8 FIGURE 2-28: Threshold (V) vs. Temperature. ...

Page 14

... MCP1631/HV/MCP1631V/VHV Typical Performance Curves (Continued) Note: Unless otherwise noted 3.0V to 5.5V for typical values = 5.0V, T for typical values = +25° 5.06 5.04 +90°C +130°C 5.02 5.00 4.98 4.96 -45°C +25°C 4.94 4. 100 150 Load Current (mA) FIGURE 2-31: LDO Output Voltage vs. ...

Page 15

... External Voltage Reference input, connect fixed or variable external reference error amplifier, the power supply output variable (voltage or current) will follow this input. ) 3.7 Analog Ground (A EXT Quiet or analog ground, connect to analog ground plane to minimize noise on sensitive MCP1631 circuitry. ) DIS 3.8 No Connection (NC) No connection to SHDN. Description ...

Page 16

... Current Sense or Voltage Ramp VDD_OUT (CS/V For MCP1631/MCP1631HV applications, connect to low side current sense of SEPIC switch for current mode control and peak current limit. For MCP1631/ MCP1631HV application, connect artificial ramp volt- ) age RAMP 3.19 Power VDD (P ...

Page 17

... OSC ). IN 4.3 V MOSFET Driver EXT The MCP1631/MCP1631V output can be used to drive the external MOSFET directly for low side topology applications. The V is capable of sourcing up to EXT 700 mA and sinking current from a P source of 5V. Typical output power using the V ...

Page 18

... MCP1631/MCP1631V reference, the V output is terminated within 50 ns preventing the build up of voltage on the SEPIC output. Peak switch current is limited by the MCP1631/ MCP1631V comparator C1 and error amplifier A1 output voltage clamp. For the MCP1631, the error amplifier output is clamped at 2.7V. The A1 output is divided down by 1/3 and compared with CS (current sense) input ...

Page 19

... Safety timers are typically used to limit the amount of energy into a faulted battery or pack. This is accomplished using the microcontroller and MCP1631/ MCP1631V shutdown feature. 5.6 OSC Disable Feature The oscillator disable or OSC_DIS input is used to asychronously terminate the PWM V EXT can be used with a slow PWM input to modulate current into an LED for lighting applications. © ...

Page 20

... MCP1631/HV/MCP1631V/VHV V Range +4.5V to +5.5V IN CIN MCP1631 VDD_IN P P VDD OSC OUT SHDN NC OSC COMP VS A GND PIC12F683 V GP1/C DD CCP1 GP4 GND GP0/C FIGURE 5-1: +5V ac-dc or USB Input Application. DS22063A-page 20 Multi-cell Multi-Chemistry Charger SCHOTTKY C C DIODE L1A L1B EXT CS GND REF DIS ...

Page 21

... OV OUT SHDN NC OSC COMP A VS GND PIC12F683 V GP1/C DD CCP1 GP3 GP4 GP5 GND GP0/C FIGURE 5-2: +5.5V to +16.0V Input. © 2007 Microchip Technology Inc. MCP1631/HV/MCP1631V/VHV Multi-cell Multi-Chemistry Charger SCHOTTKY C C DIODE L1A L1B EXT REF DIS OUT R R THERM C OUT C A VDD_OUT ...

Page 22

... MCP1631/HV/MCP1631V/VHV V Range +6V to +40V IN CIN +5V HV Regulator C OUT MCP1631 VDD_IN P P VDD OSC OUT SHDN OSC COMP VS A GND PIC12F683 V GP1/C DD CCP1 GP3 GP4 GND GP0/C FIGURE 5-3: Wide Range High Voltage Input. DS22063A-page 22 Multi-cell Multi-Chemistry Charger SCHOTTKY C C DIODE L1A ...

Page 23

... PACKAGING INFORMATION 6.1 Package Marking Information (Not to Scale) 20-Lead 4x4 QFN (MCP1631/MCP1631V) XXXXX XXXXXX XXXXXX YWWNNN 20-Lead SSOP (All Devices) XXXXXXXXXXX XXXXXXXXXXX YYWWNNN 20-Lead TSSOP (All Devices) XXXXXXXX XXXXXNNN YYWW Legend: XX...X Customer-specific information Y Year code (last digit of calendar year) ...

Page 24

... MCP1631/HV/MCP1631V/VHV 20-Lead Plastic Quad Flat, No Lead Package (ML) – 4x4x0.9 mm Body [QFN] Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging D TOP VIEW A3 Number of Pins Pitch Overall Height Standoff Contact Thickness Overall Width Exposed Pad Width ...

Page 25

... Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.20 mm per side. 3. Dimensioning and tolerancing per ASME Y14.5M. BSC: Basic Dimension. Theoretically exact value shown without tolerances. REF: Reference Dimension, usually without tolerance, for information purposes only. © 2007 Microchip Technology Inc. MCP1631/HV/MCP1631V/VHV ...

Page 26

... MCP1631/HV/MCP1631V/VHV 20-Lead Plastic Thin Shrink Small Outline (ST) – 4.4 mm Body [TSSOP] Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging D N NOTE Number of Pins Pitch Overall Height Molded Package Thickness Standoff Overall Width Molded Package Width ...

Page 27

... APPENDIX A: REVISION HISTORY Revision A (October 2007) • Original Release of this Document. © 2007 Microchip Technology Inc. MCP1631/HV/MCP1631V/VHV DS22063A-page 27 ...

Page 28

... MCP1631/HV/MCP1631V/VHV NOTES: DS22063A-page 28 © 2007 Microchip Technology Inc. ...

Page 29

... Plastic Quad Flat, No Lead (4x4x0.9), 20-lead SS = Plastic Shrink Small Outline (5.30 mm), 20-lead ST = Plastic Thin Shrink Small Outline (4.4 mm), 20-Lead * All package offerings are Pb Free (Lead Free) © 2007 Microchip Technology Inc. MCP1631/HV/MCP1631V/VHV Examples: a) MCP1631-E/ML: b) MCP1631-E/SS: c) MCP1631-E/ST: a) MCP1631HV-E/ML: b) MCP1631HV-E/SS: c) MCP1631HV-E/ST: a) MCP1631VT-E/ML: b) MCP1631V-E/SS: ...

Page 30

... MCP1631/HV/MCP1631V/VHV NOTES: DS22063A-page 30 © 2007 Microchip Technology Inc. ...

Page 31

... PowerInfo, PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Smart Serial, SmartTel, Total Endurance, UNI/O, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...

Page 32

... Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2007 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...

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