Instrukcja obsługi Microchip MCP73830L
Microchip
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MCP73830L
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2011-2019 Microchip Technology Inc. DS20005049E-page 1
MCP73830/L
Features:
• Complete Linear Charge Management Controller:
- Integrated pass transistor
- Integrated current sense
- Integrated Reverse Discharge Protection
• Constant-Current/Constant Voltage Operation
• High-Accuracy Preset Voltage Regulation:
- 4.20V +0.75%
• Programmable Charge Current:
- MCP73830L: 20 mA-200 mA
- MCP73830: 100 mA-1000 mA
• Soft Start to Avoid Inrush Current
• Preconditioning:
- 10% and no preconditioning
• Fixed Elapsed Timer: 4 Hours
• Fixed Preconditioning Timer: 1 Hour
• Automatic Recharge: No Auto-Recharge is also
Available with Selected Options
• Automatic End-of-Charge (EOC) Control
Termination:
- 7.5% and 10%
• Automatic Power-Down when Input Power
Removed
• Undervoltage Lockout (UVLO)
• Chip/Charge Enable Pin (CE)
• Packaging:
- TDFN-6 (2x2 mm)
• Temperature Range: -40°C to +85°C
Applications:
• Bluetooth Headsets
• Portable Media Players
• Rechargeable 3D Glasses
• Toy and Gaming Controllers
Description:
The MCP73830/L are highly integrated, Li-Ion battery
charge management controllers for use in space-limited
applications. The MCP73830/L devices provide specific
charge algorithms for single-cell Li-Ion/Li-Polymer batter-
ies to achieve optimal capacity and safety in the shortest
charging time possible. Along with its small physical size,
the low number of external components makes the
MCP73830/L ideally suitable for portable applications.
The MCP73830L employs a constant-current/constant
voltage charge algorithm. The minimum 20 mA regu-
lated constant, fast charge current enables the design
in small Li-Ion batteries and low supply current applica-
tions. The fast charge, constant-current value is set
with one external resistor, from 20 mA to 200 mA. The
MCP73830 allows up to 1000 mA charge current for
applications that require faster constant current.
The MCP73830/L devices provide a thermal foldback
function that limits the charge current, based on die
temperature during high-power or high-ambient condi-
tions. This thermal regulation optimizes the charge
cycle time while maintaining device reliability.
The MCP73830/L devices are fully specified over the
ambient temperature range of -40°C to +85°C. The
MCP73830/L is available in a 6 lead, TDFN package.
Package Types (Top View)
MCP73830/L
2x2 TDFN *
* Includes Exposed Thermal Pad (EP); see Table 3-1.
VBAT
STAT CE
VDD
1
2
3
6
5
4
PROG
VSS
EP
7
TABLE 1: AVAILABLE FACTORY PRESET OPTIONS
Charge Voltage Preconditioning Charge Current End-of-Charge Control Auto-Recharge
4.2V 10%/Disabled 7.5%/10% Yes/No
Single-Cell Li-Ion/Li-Polymer Battery Charge Management
Controllers in 2x2 TDFN
MCP73830/L
DS20005049E-page 2 2011-2019 Microchip Technology Inc.
Typical Application
Functional Block Diagram
STAT
VDD VBAT 3
4
PROG
1
26
Regulated
Wall Cube
4.7 µF
2 k
+
–
1-Cell
Li-Ion
Battery
VSS
5
4.7 µF
1 k
CE
Hi
Lo
MCP73830/L
STAT
PROG
VBAT
VSS
Direction
Control
TERM
+
–
UVLO,
Reference,
Charge
Control,
Timer and
Status Logic
G = 0.001
VDD
+
–
CA
VREF
PRECONDITION
+
–
VREF
+
–
VA
VREF
VREF
CE
CHRG
+
–
VREF
UVLO
+
–
VREF
VDD
2011-2019 Microchip Technology Inc. DS20005049E-page 3
MCP73830/L
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings†
VDD, VBAT.........................................................................7.0V
All Inputs and Outputs w.r.t. VSS ..............-0.3 to (V
DD + 0.3)V
Maximum Junction Temperature, TJ............Internally Limited
Storage temperature .....................................-65°C to +150°C
ESD protection on all pins
Human Body Model (1.5 k in Series with 100 pF)2 kV
Machine Model (200 pF, No Series Resistance) .............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 listings of this specification
is not implied. Exposure to maximum rating conditions
for extended periods may affect device reliability.
DC CHARACTERISTICS
Electrical Specifications: Unless otherwise indicated, all limits apply for V
DD = [VREG(Typical) + 0.3V] to 6V,
TA = -40°C to +85°C. Typical values are at +25°C, VDD = [VREG(Typical) + 1.0V].
Parameters Sym. Min. Typ. Max. Units Conditions
Supply Input
Input Voltage Range VDD 3.75 — 6 V
Supply Current ISS — 0.6 2 µA Shutdown;
VDD VSTOP – 300 mV
— 500 900 µA Charging
— 25 50 µA Standby; CE = VDD
Battery Discharge Current
Output Reverse
Leakage Current
IDISCHARGE — 10 15 µA Charge Complete;
VDD is Present
— 0.5 — µA Shutdown
(VDD VBAT or VDD < VSTOP)
— 0.5 — µA Standby; CE = VDD
Undervoltage Lockout
UVLO Start Threshold VSTART 3.45 3.6 3.75 V VDD Low-to-High
UVLO Stop Threshold VSTOP 3.15 3.3 3.45 V VDD High-to-Low
UVLO Hysteresis V HYS — 300 — mV
Voltage Regulation (Constant Voltage Mode)
Regulated Output
Voltage Options
VREG — 4.20 — V V DD = [VREG(Typical) + 1V];
IOUT = 30 mA
Output Voltage
Tolerance
VRTOL -0.75 — 0.75 % T
A= -5°C to +55°C
Line Regulation VBAT/VBAT)/
VDD|
— 0.2 0.3 %/V V
DD = [VREG(Typical) + 1V] to 6V;
IOUT = 30 mA
Load Regulation V
BAT/VBAT| — 0.2 0.3 % IOUT = 30 mA – 150 mA;
VDD = [VREG(Typical) + 1V]
Supply Ripple
Attenuation
PSRR — 52 — dB IOUT = 30 mA; 10 Hz to 1 kHz
— 47 — dB IOUT = 30 mA; 10 Hz to 10 kHz
Note 1: Not production tested. Ensured by design.
Specyfikacje produktu
| Marka: | Microchip |
| Kategoria: | nieskategoryzowany |
| Model: | MCP73830L |
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