MCP73844-840I/MS Microchip Technology, MCP73844-840I/MS Datasheet - Page 15

• Manufacturer Part Number: MCP73844-840I/MS
• Description: IC CONTROLLER LI-ION 8.4V 8MSOP
• Manufacturer: Microchip Technology

Specifications of MCP73844-840I/MS

• Battery Type: Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
• Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
• Function: Charge Management
• Voltage - Supply: 8.7 V ~ 12 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Output Voltage: 8.442 V
• Output Current: 10 mA
• Operating Supply Voltage: 8.7 V to 12 V
• Supply Current: 4 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Uvlo Start Threshold: 8.90 V
• Uvlo Stop Threshold: 8.85 V
• Input Voltage: 12V
• Battery Charge Voltage: 8.4V
• Charge Current Max: 10mA
• Battery Ic Case Style: MSOP
• No. Of Pins: 8
• No. Of Series Cells: 2
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MCP7383XRD-PPM - REFERENCE DESIGN PWR-PTH MCP7383MCP7384XEV - KIT EVALUATION FOR MCP7384X
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

6.0
The MCP7384X is designed to operate in conjunction
with either a host microcontroller or in stand-alone
applications. The MCP7384X provides the preferred
charge algorithm for Lithium-Ion and Lithium-Polymer
FIGURE 6-1:
FIGURE 6-2:
 2004 Microchip Technology Inc.
Voltage
Regulated
Wall Cube
Precondition Current
Transition Threshold
Termination Current
Regulation Voltage
Regulation Current
APPLICATIONS
(I
(I
(V
(V
(I
PREG
TERM
REG
REG
PTH
Typical Application Circuit.
Typical Charge Profile.
Optional
Reverse
Blocking
Diode
)
)
)
)
)
Preconditioning
Phase
Safety Timer
Precondition
R
T2
R
R
SENSE
T1
Constant-Current
Phase
SENSE
THREF
STAT1
Safety Timer
Fast Charge
V
EN
DD
Charge
Voltage
1
2
4
5
3
MCP73841
Termination Timer
cells: constant-current followed by constant-voltage.
Figure 6-1 depicts a typical stand-alone application
circuit, while Figure 6-2 depicts the accompanying
charge profile.
Elapsed Time
Constant-Voltage
Phase
Current
Charge
10
MCP73841/2/3/4
8
7
6
9
DRV
V
V
TIMER
THERM
BAT
SS
Q
1
C
TIMER
DS21823C-page 15
Battery
Pack
+
-