Instrukcja obsługi Microchip MCP1640

Microchip nieskategoryzowany MCP1640

Przeczytaj poniżej 📖 instrukcję obsługi w języku polskim dla Microchip MCP1640 (32 stron) w kategorii nieskategoryzowany. Ta instrukcja była pomocna dla 12 osób i została oceniona przez 2 użytkowników na średnio 4.5 gwiazdek

Pobierz PDF
Strona 1/32
2010-2021
Microchip Technology Inc. and its subsidiaries
DS20002234E-page 1
MCP1640/B/C/D
Features
• AEC-Q100 Qualified
• Up to 96% Typical Efficiency
• Passes automotive AEC-Q100 reliability testing
• 800 mA Typical Peak Input Current Limit:
- IOUT > 100 mA @ 1.2V VIN, 3.3V VOUT
- IOUT > 350 mA @ 2.4V VIN, 3.3V VOUT
- IOUT > 350 mA @ 3.3V VIN, 5.0V VOUT
• Low Start-Up Voltage: 0.65V, typical 3.3V VOUT
@ 1 mA
• Low Operating Input Voltage: 0.35V, typical 3.3V
VOUT @ 1 mA
• Adjustable Output Voltage Range: 2.0V to 5.5V
• Maximum Input Voltage VOUT < 5.5V
• Automatic PFM/PWM Operation (MCP1640/C):
- PFM Operation Disabled (MCP1640B/D)
- PWM Operation: 500 kHz
• Low Device Quiescent Current: 19 µA, typical
PFM Mode (not switching)
• Internal Synchronous Rectifier
• Internal Compensation
• Inrush Current Limiting and Internal Soft Start
• Selectable, Logic Controlled Shutdown States:
- True Load Disconnect Option (MCP1640/B)
- Input to Output Bypass Option (MCP1640C/D)
• Shutdown Current (All States): < 1 µA
• Low Noise, Anti-Ringing Control
• Overtemperature Protection
• Available Packages:
- 6-Lead SOT-23
- 8-Lead 2 mm x 3 mm DFN
Applications
• One, Two and Three Cell Alkaline and NiMH/NiCd
Portable Products
• Single-Cell Li-Ion to 5V Converters
• Li Coin Cell Powered Devices
• Personal Medical Products
• Wireless Sensors
• Handheld Instruments
• GPS Receivers
• Bluetooth Headsets
• +3.3V to +5.0V Distributed Power Supply
General Description
The MCP1640/B/C/D is a compact, high-efficiency,
fixed frequency, synchronous step-up DC-DC
converter. It provides an easy-to-use power supply
solution for applications powered by either single-cell,
two-cell, or three-cell alkaline, NiCd, NiMH, and single-
cell Li-Ion or Li-Polymer batteries.
Low-voltage technology allows the regulator to start-up
without high inrush current or output voltage overshoot
from a low 0.65V input. High efficiency is accomplished
by integrating the low resistance N-Channel Boost
switch and synchronous P-Channel switch. All
compensation and protection circuitry is integrated to
minimize the number of external components. For
standby applications, the MCP1640 consumes only
19 µA while operating at no load, and provides a true
disconnect from input to output while in Shutdown
(EN = GND). Additional device options are available by
operating in PWM-Only mode and connecting input to
output while the device is in Shutdown.
The “true” load disconnect mode provides input-to-out-
put isolation while the device is disabled by removing
the normal boost regulator diode path from input-to-
output. The Input-to-Output Bypass mode option con-
nects the input to the output using the integrated low
resistance P-Channel MOSFET, which provides a low
bias voltage for circuits operating in Deep Sleep mode.
Both options consume less than 1 µA of input current.
Output voltage is set by a small external resistor
divider. Two package options are available, 6-Lead
SOT-23 and 8-Lead 2 mm x 3 mm DFN. The
MCP1640/B/C/D is AEC-Q100 qualified for automotive
applications.
Package Types
MCP1640
8-Lead 2 x 3 DFN*
PGND
SGND
EN
VOUTS
VOUTP
1
2
3
4
8
7
6
5SW
VIN
VFB
EP
9
4
1
2
3
6VIN
VFB
SW
GND
EN
5VOUT
MCP1640
6-Lead SOT-23
* Includes Exposed Thermal Pad (EP); see Table 3-1.
0.65V Start-Up Synchronous Boost Regulator
with True Output Disconnect or Input/Output Bypass Option
MCP1640/B/C/D
DS20002234E-page 2 2010-2021
Microchip Technology Inc. and its subsidiaries
Typical Application
VIN
GND
VFB
SW
VIN
0.9V to 1.7V
VOUT
3.3V @ 100 mA
COUT
10 µF
CIN
4.7 µF
L1
4.7 µH
VOUT
+
-
976 k
562 k
ALKALINE
VIN
PGND
VFB
SW
VIN
3.0V to 4.2V
VOUT
5.0V @ 300 mA
COUT
10 µF
CIN
4.7 µF
L1
4.7 µH
VOUTS
+
-
976 k
309 k
VOUTP
SGND
LI-ION
EN
EN
2010-2021
Microchip Technology Inc. and its subsidiaries
DS20002234E-page 3
MCP1640/B/C/D
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings †
EN, VFB, VIN, VSW, VOUT - GND .........................+6.5V
EN, VFB ....<maximum of VOUT or VIN > (GND – 0.3V)
Output Short-Circuit Current ...................... Continuous
Output Current Bypass Mode .......................... 400 mA
Power Dissipation ............................ Internally Limited
Storage Temperature ......................... -65°C to +150°C
Ambient Temp. with Power Applied...... -40°C to +85°C
Operating Junction Temperature........ -40°C to +125°C
ESD Protection On All Pins:
HBM........................................................ 3 kV
MM......................................................... 300V
† Notice: Stresses above those listed under “Maximum
Ratings” may cause permanent damage to the device.
This is a stress rating only and functional operation of
the device at those or any other conditions above those
indicated in the operational sections of this
specification is not intended. Exposure to maximum
rating conditions for extended periods may affect
device reliability.
DC CHARACTERISTICS
Electrical Characteristics: Unless otherwise indicated, VIN = 1.2V, COUT = CIN = 10 µF, L = 4.7 µH, VOUT = 3.3V,
IOUT = 15 mA, TA = +25°C. Boldface specifications apply over the T
A range of -40°C to +85°C.
Parameters Sym. Min. Typ. Max. Units Conditions
Input Characteristics
Minimum Start-Up Voltage VIN — 0.65 0.8 VNote 1
Minimum Input Voltage After
Start-Up
VIN — 0.35 — V Note 1
Output Voltage Adjust Range VOUT 2.0 5.5 V VOUT VIN; Note 2
Maximum Output Current IOUT — 150 — mA 1.2V VIN, 2.0V VOUT
— 150 — mA 1.5V VIN, 3.3V VOUT
— 350 — mA 3.3V VIN, 5.0V VOUT
Feedback Voltage VFB 1.175 1.2451.21 V
Feedback Input Bias Current I
VFB — 10 — pA
Quiescent Current – PFM
Mode
IQPFM — 19 30 µA Measured at VOUT = 4.0V;
EN = VIN, IOUT
= 0 mA;
Note 3
Quiescent Current – PWM
Mode
IQPWM — 220 — µA Measured at VOUT = 4.0V;
EN = VIN, IOUT = 0 mA;
Note 3
Quiescent Current – Shutdown IQSHDN — 0.7 2.3 µA VOUT = EN = GND;
Includes N-Channel and
P-Channel Switch Leakage
NMOS Switch Leakage I
NLK — 0.3 — µA VIN = VSW = 5V;
VOUT = 5.5V
VEN = VFB = GND
PMOS Switch Leakage IPLK — 0.05 — µA VIN = VSW = GND;
VOUT = 5.5V
Note 1: 3.3 k resistive load, 3.3V VOUT (1 mA).
2: For V
IN > VOUT, VOUT will not remain in regulation.
3: IQOUT is measured at VOUT
; VOUT is externally supplied with a voltage higher than the nominal 3.3V output
(device is not switching); no load; VIN quiescent current will vary with boost ratio. VIN quiescent current
can be estimated by: (IQPFM
* (V OUT/VIN)), (IQPWM * (VOUT/VIN)).
4: Peak current limit determined by characterization, not production tested.
5: 220 resistive load, 3.3V VOUT (15 mA).

Specyfikacje produktu

Marka: Microchip
Kategoria: nieskategoryzowany
Model: MCP1640

Potrzebujesz pomocy?

Jeśli potrzebujesz pomocy z Microchip MCP1640, zadaj pytanie poniżej, a inni użytkownicy Ci odpowiedzą


Instrukcje nieskategoryzowany Microchip

Microchip

Microchip EMC1824 Instrukcja

5 Lipca 2024
Microchip

Microchip EVB-USB3740 Instrukcja

5 Lipca 2024
Microchip

Microchip EVB-USB3503 Instrukcja

5 Lipca 2024
Microchip

Microchip EVB-LAN7430 Instrukcja

5 Lipca 2024
Microchip

Microchip ATSAMHA1G14A-B Instrukcja

5 Lipca 2024
Microchip

Microchip MCP1631 Instrukcja

5 Lipca 2024
Microchip

Microchip ATSAM4LS4B Instrukcja

5 Lipca 2024
Microchip

Microchip EVB-USB2507 Instrukcja

5 Lipca 2024
Microchip

Microchip EVB-USB2502 Instrukcja

5 Lipca 2024
Microchip

Microchip PAC1710 Instrukcja

5 Lipca 2024

Instrukcje nieskategoryzowany

Najnowsze instrukcje dla nieskategoryzowany

Meec Tools

Meec Tools 010-084 Instrukcja

6 Października 2024
Outwell

Outwell Scenic Road 250 Instrukcja

5 Października 2024
Impact

Impact Qualite QL-3560-LED Instrukcja

4 Października 2024
Impact

Impact QuikBalance Instrukcja

4 Października 2024
Impact

Impact CA-112 Instrukcja

4 Października 2024
Impact

Impact Forever Ready Cool FRC-24-LED Instrukcja

4 Października 2024
Impact

Impact LS-BHA Instrukcja

4 Października 2024
Impact

Impact LKB-5C Instrukcja

4 Października 2024
Impact

Impact Varipole Drop Ceiling Adapter Instrukcja

4 Października 2024
Impact

Impact RST-001 Instrukcja

4 Października 2024