MCP73862-I/ML Microchip Technology, MCP73862-I/ML Datasheet - Page 12

• Manufacturer Part Number: MCP73862-I/ML
• Description: IC CONTROLLER LI-ION 8.7V 16QFN
• Manufacturer: Microchip Technology

Specifications of MCP73862-I/ML

• Function: Charge Management
• Battery Type: Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
• Voltage - Supply: 8.7 V ~ 12 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-QFN
• Product: Charge Management
• Output Voltage: 8.442 V
• Output Current: 1200 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: 9.05 V
• Uvlo Stop Threshold: 8.95 V
• Lead Free Status / RoHS Status: Request inventory verification / Request inventory verification

MCP73861/2
3.0
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1:
3.1
MCP73861: Connect to V
voltage, connect to V
MCP73862: Connect to V
voltage, connect to V
3.2
A supply voltage of [V
recommended. Bypass to V
4.7 µF.
3.3
Connect to negative terminal of battery and input
supply.
3.4
Preconditioning, fast and termination currents are
scaled by placing a resistor from PROG to V
3.5
Voltage reference to bias external thermistor for contin-
uous cell-temperature monitoring and pre-qualification.
3.6
Input for an external thermistor for continuous cell-
temperature monitoring and pre-qualification. Connect
to THREF/3 to disable temperature sensing.
DS21893A-page 12
Pin No.
PIN DESCRIPTION
Voltage Regulation Selection
(V
Battery Management Input Supply
(V
Battery Management 0V Reference
(V
Current Regulation Set (PROG)
Cell Temperature Sensor Bias
(THREF)
Cell Temperature Sensor Input
(THERM)
10
12
13
14
15
16
11
1
2
3
4
5
6
7
8
9
SET
DD2
SS1
, V
)
, V
PIN FUNCTION TABLES
SS2
DD1
DD
DD
REG
, V
)
for 4.2V regulation voltage.
for 8.4V regulation voltage.
SS
SS
(Typ) + 0.3V] to 12V is
Symbol
SS3
THERM
THREF
TIMER
PROG
STAT2
STAT1
SS
V
V
V
V
V
V
V
V
V
for 4.1V regulation
for 8.2V regulation
EN
BAT1
BAT2
BAT3
SET
DD1
DD2
SS1
SS3
SS2
with a minimum of
)
Voltage Regulation Selection
Battery Management Input Supply
Battery Management Input Supply
Battery Management 0V Reference
Current Regulation Set
Cell Temperature Sensor Bias
Cell Temperature Sensor Input
Timer Set
Battery Management 0V Reference
Battery Charge Control Output
Battery Charge Control Output
Battery Voltage Sense
Battery Management 0V Reference
Logic Enable
Fault Status Output
Charge Status Output
SS
.
3.7
All safety timers are scaled by C
3.8
Connect to positive terminal of battery. Drain terminal
of internal P-channel MOSFET pass transistor. Bypass
to V
when the battery is disconnected.
3.9
Voltage sense input. Connect to positive terminal of
battery. A precision internal resistor divider regulates
the final voltage on this pin to V
3.10
Input to force charge termination, initiate charge, clear
faults or disable automatic recharge.
3.11
Current-limited, open-drain drive for direct connection
to a LED for charge status indication. Alternatively, a
pull-up resistor can be applied for interfacing to a host
microcontroller.
3.12
Current limited, open-drain drive for direct connection
to an LED for charge status indication. Alternatively, a
pull-up resistor can be applied for interfacing to a host
microcontroller.
SS
with a minimum of 4.7 F to ensure loop stability
Timer Set
Battery Charge Control Output
(V
Battery Voltage Sense (V
Logic Enable (EN)
Fault Status Output (STAT2)
Charge Status Output (STAT1)
Function
BAT1
, V
BAT2
 2004 Microchip Technology Inc.
)
REG
TIMER
.
/0.1 µF.
BAT3
)