MCP73844-840I/MS Microchip Technology, MCP73844-840I/MS Datasheet - Page 2

• 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

MCP73841/2/3/4
Functional Block Diagram
DS21823C-page 2
THERM
SENSE
THREF
TIMER
V
EN
DD
90 k
10 k
100 k
50 k
50 k
V
1 k
MCP73841 and MCP73842 Only
REF
V
Charge
Termination
Comparator
+
+
–
+
+
+
UVLO
-
-
-
-
Bias and
Reference
Generator
UVLO
Comparator
Temperature
Comparators
Charge
Current
Amplifier
12 k
I
REG
/10
10 k
90 k
Power-On
V
V
Delay
UVLO
REF
V
REF
(1.2V)
Charge Current
Control Amplifier
Precondition
+
–
Control
Oscillator
I
REG
V
DD
/10
Charge_ok
Precon
Voltage Control
Amplifier
Charge Control,
Charge Timers,
Status Logic
And
V
+
Constant-Voltage/
Recharge Comp.
-
REF
Precondition
Comp.
Charge_ok
Drv Stat 1
V
 2004 Microchip Technology Inc.
REF
+
+
-
-
0.79 k
74.21 k
300 k
(825 k )
150.02 k
5.15 k
(4.29 k )
DRV
V
V
STAT1
BAT
SS