MCP73223-C2S/MF [MICROCHIP]
Lithium Iron Phosphate (LiFePO4) Battery Charge Management Controller with Input Overvoltage Protection; 磷酸铁锂锂（LiFePO4 ）电池充电管理控制器具有输入过压保护
| 型号： | MCP73223-C2S/MF |
| 厂家： | 
MICROCHIP |
| 描述： | Lithium Iron Phosphate (LiFePO4) Battery Charge Management Controller with Input Overvoltage Protection |
| 文件： | 总28页 (文件大小：1221K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MCP73123/223
Lithium Iron Phosphate (LiFePO4) Battery Charge
Management Controller with Input Overvoltage Protection
Features:
Description:
• Complete Linear Charge Management Controller:
- IntegratedInputOvervoltageProtection(OVP)
- Integrated Pass Transistor
The MCP73123/223 is a highly integrated Lithium Iron
Phosphate (LiFePO4) battery charge management
controller for use in space-limited and cost-sensitive
applications. The MCP73123/223 provides specific
charge algorithms for LiFePO4 batteries 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
- Integrated Current Sense
- Integrated Reverse Discharge Protection
• Constant Current/Constant Voltage Operation
with Thermal Regulation
MCP73123/223
ideally
suitable
for
various
• 4.15V Undervoltage Lockout (UVLO)
• 18V Absolute Maximum Input with OVP:
- 6.5V - MCP73123
applications. The absolute maximum voltage, up to
18V, allows the use of MCP73123/223 in harsh
environments, such as low cost AC adapter or voltage
spikes from plugging/unplugging.
- 13V - MCP73223
• High Accuracy Preset Voltage Regulation
Through Full Temperature Range (-5°C to +55°C):
The MCP73123/223 employs a constant current/
constant voltage charge algorithm. The 3.6V per cell
factory preset reference voltage simplifies design with
2V preconditioning threshold. The fast charge,
constant current value is set with one external resistor
from 130 mA to 1100 mA. The MCP73123/223 also
limits the charge current based on die temperature
during high power or high ambient conditions. This
thermal regulation optimizes the charge cycle time
while maintaining device reliability.
- +0.5% - MCP73123
- +0.6% - MCP73223
• Battery Charge Voltage Options:
- 3.6V - MCP73123
- 7.2V - MCP73223
• Resistor Programmable Fast Charge Current:
- 130 mA - 1100 mA
• Preconditioning of Deeply Depleted Cells:
- Available Options: 10% or Disable
• Integrated Precondition Timer:
- 32 Minutes or Disable
The PROG pin of the MCP73123/223 also serves as
the enable pin. When high impedance is applied, the
MCP73123/223 will be in Standby mode.
The MCP73123/223 is fully specified over the ambient
temperature range of -40°C to +85°C. The MCP73123/
223 is available in a 10 lead DFN package.
• Automatic End-of-Charge Control:
- Selectable Minimum Current Ratio:
5%, 7.5%, 10% or 20%
Package Types (Top View)
- Elapse Safety Timer: 4 HR, 6 HR, 8 HR or
Disable
MCP73123/223
3x3 DFN *
• Automatic Recharge:
- Available Options: 95% or Disable
• Factory Preset Charge Status Output:
- On/Off or Flashing
V
V
PROG
1
2
10
9
DD
DD
V
SS
EP
11
V
V
V
3
4
5
8
7
6
BAT
SS
• Soft Start
STAT
NC
BAT
• Temperature Range: -40°C to +85°C
• Packaging: DFN-10 (3 mm x 3 mm)
NC
* Includes Exposed Thermal Pad (EP); see Table 3-1.
Applications:
• Low-Cost LiFePO4 Battery Chargers
• Power Tools
• Toys
• Backup Energy Storage Solutions
2009-2013 Microchip Technology Inc.
DS22191E-page 1
MCP73123/223
Typical Application
MCP73123 Typical Application
3
4
1
AC-DC Adapter
VDD
VDD
VBAT
2
7
VBAT
+
-
4.7 µF
4.7 µF
1-Cell
LiFePO4
Battery
10
PROG
STAT
1 k
1.15 k
5 NC
9
8
VSS
VSS
6
NC
TABLE 1:
AVAILABLE FACTORY PRESET OPTIONS
End-of-
Charge
Control
Charge
Voltage
Preconditioning Preconditioning Precondition
Elapse
Timer
Automatic
Recharge
Output
Status
OVP
Charge Current
Threshold
Timer
3.6V
6.5V
13V
Disable/10%
2V
Disable /
32 Minimum
Disable/4 hr./
6 hr./8 hr.
5%/7.5%/
10%/20%
No /
Yes
Type 1/
Type 2
7.2V
Disable/10%
4V
Disable /
32 Minimum
Disable/4 hr./
6 hr./8 hr.
5%/7.5%/
10%/20%
No /
Yes
Type 1/
Type 2
Note 1:
I
: Regulated fast charge current.
REG
2:
3:
4:
5:
6:
V
: Regulated charge voltage.
REG
I
I
/I
: Preconditioning charge current; ratio of regulated fast charge current.
: End-of-Charge control; ratio of regulated fast charge current.
PREG REG
/I
TERM REG
V
V
/V
: Recharge threshold; ratio of regulated battery voltage, 0% or 95%. 0% = Disabled.
: Preconditioning threshold voltage.
RTH REG
/V
PTH REG
7: Type 1: On/Off; Type 2: Flashing. Please refer to Table 5-2.
TABLE 2:
STANDARD SAMPLE OPTIONS
Part
Number
V
OVP
I
/I
Precharge Elapse
I
/I
Auto Recharge
Threshold
V
/V
Output
Status
REG
PREG REG
TERM REG
PTH REG
Timer
Timer
(0% = Disabled)
MCP73123-22S/MF
MCP73123-22A/MF
3.6V 6.5V
3.6V 6.5V
10%
10%
10%
10%
32 Min.
32 Min.
32 Min.
32 Min.
6 hr.
6 hr.
6 hr.
6 hr.
10%
10%
10%
10%
95%
0%
2V
2V
4V
4V
Type 1
Type 1
Type 1
Type 1
MCP73223-C2S/MF 7.2V 13V
MCP73223-C2A/MF 7.2V 13V
95%
0%
Note 1: Customers should contact their distributor, representatives or field application engineer (FAE) for support and samples.
Local sales offices are also available to help customers. A listing of sales offices and locations is included in the back of
this document. Technical support is available through the web site at: http//support.microchip.com.
2: Contact your local Microchip sales office for alternative device options.
DS22191E-page 2
2009-2013 Microchip Technology Inc.
MCP73123/223
Functional Block Diagram
VO
REG
DIRECTION
CONTROL
V
BAT
V
DD
CURRENT
LIMIT
+
-
V
REF
G=0.001
PROG
CA
+
-
REFERENCE,
BIAS, UVLO,
AND SHDN
V
(1.21V)
REF
+
VO
UVLO
REG
-
-
PRECONDITION
+
TERM
-
+
CHARGE
CHARGE
CONTROL,
TIMER,
AND
VA
STAT
+
-
STATUS
LOGIC
V
SS
-
6.5V/13V
+
V
DD
Input OverVP
-
95% V
REG
-
+
110
C
V
BAT
+
*Recharge
T
SD
Thermal Regulation
*Only available on selected options
2009-2013 Microchip Technology Inc.
DS22191E-page 3
MCP73123/223
† 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.
1.0
ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings†
V
V
................................................................................18.0V
..............................................................................6.0V
DD
PROG
All Inputs and Outputs w.r.t. V ............... -0.3 to (V +0.3)V
SS
DD
Maximum Junction Temperature, T ............Internally Limited
J
Storage temperature .....................................-65°C to +150°C
ESD protection on all pins
Human Body Model (1.5 k in Series with 100 pF)4 kV
Machine Model (200pF, No Series Resistance)..............300V
DC CHARACTERISTICS
Electrical Specifications: Unless otherwise indicated, all limits apply for V = [V
(Typical) + 0.3V] to 12V,
DD
REG
T = -40°C to +85°C. Typical values are at +25°C, V = [V (Typical) + 1.0V]
A
DD
REG
Parameters
Sym.
Min.
Typ.
Max.
Units
Conditions
Supply Input
Input Voltage Range
Operating Supply Voltage
Operating Supply Voltage
Supply Current
V
V
V
I
4
—
—
16
V
V
DD
DD
DD
4.2
4.2
—
6.5
13.0
5.5
MCP73123
MCP73223
—
V
4
µA
µA
µA
µA
Shutdown (V V
- 150 mV)
BAT
SS
DD
—
700
30
50
1500
100
150
Charging
—
Standby (PROG Floating)
—
Charge Complete; No Battery;
V
V
STOP
DD
Battery Discharge Current
Output Reverse Leakage
Current
I
—
—
0.5
0.5
2
2
µA
µA
Standby (PROG Floating)
DISCHARGE
Shutdown (V V ,
DD
BAT
or V V
)
DD
STOP
—
6
17
µA
Charge Complete; V is present
DD
Undervoltage Lockout
UVLO Start Threshold
UVLO Stop Threshold
UVLO Hysteresis
V
4.10
4.00
—
4.15
4.05
100
4.25
4.15
—
V
V
START
V
STOP
V
mV
HYS
Overvoltage Protection
OVP Start Threshold
OVP Start Threshold
OVP Hysteresis
V
6.4
12.8
—
6.5
13
6.6
13.2
—
V
V
MCP73123
MCP73223
OVP
OVP
V
V
150
mV
OVPHYS
Voltage Regulation (Constant Voltage Mode)
Regulated Output Voltage
Output Voltage Tolerance
Regulated Output Voltage
Output Voltage Tolerance
V
3.582
-0.5
3.60
—
3.618
+0.5
V
%
V
T = -5°C to +55°C, I
- MCP73123
= 50 mA
= 50 mA
REG
A
OUT
OUT
V
T = -5°C to +55°C
RTOL
A
- MCP73123
V
7.157
-0.6
7.20
—
7.243
+0.6
T = -5°C to +55°C, I
REG
A
- MCP73223
V
%
T = -5°C to +55°C
RTOL
A
- MCP73223
Note 1: Not production tested. Ensured by design.
DS22191E-page 4
2009-2013 Microchip Technology Inc.
MCP73123/223
DC CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise indicated, all limits apply for V = [V
(Typical) + 0.3V] to 12V,
DD
REG
T = -40°C to +85°C. Typical values are at +25°C, V = [V (Typical) + 1.0V]
A
DD
REG
Parameters
Sym.
Min.
Typ.
Max.
0.20
Units
Conditions
Line Regulation
V
/
—
0.05
%/V
V
= [V (Typical)+1V] to 6V
REG
BAT
DD
V
)/V
|
- MCP73123
= [V
BAT
DD
V
(Typical)+1V] to 12V
REG
DD
- MCP73223
I
= 50 mA
OUT
Load Regulation
V
/V
|
—
0.05
0.20
%
I
V
= 50 mA - 150 mA
= [V (Typical)+1V]
BAT BAT
OUT
DD
OUT
OUT
REG
Supply Ripple Attenuation
PSRR
—
—
-46
-30
—
—
dB
dB
I
I
= 20 mA, 10 Hz to 1 kHz
= 20 mA, 10 Hz to 10 kHz
Battery Short Protection
BSP Start Threshold
BSP Start Threshold
BSP Hysteresis
V
—
—
—
—
1.45
2.90
150
25
—
—
—
—
V
V
MCP73123
MCP73223
SHORT
SHORT
BSPHYS
SHORT
V
V
I
mV
mA
BSP Regulation Current
Current Regulation (Fast Charge, Constant-Current Mode)
Fast Charge Current
Regulation
I
130
—
—
1100
—
mA T =-5°C to +55°C
REG
A
130
mA PROG = 10 k
mA PROG = 1.1 k
—
1000
—
Preconditioning Current Regulation (Trickle Charge Constant Current Mode)
Precondition Current Ratio
I
/I
—
10
—
%
PROG = 1 kto 10 k
PREG/ REG
T =-5°C to +55°C
A
—
1.9
3.8
—
100
2.0
4.0
100
—
2.1
4.2
—
%
V
No Preconditioning
Precondition Voltage
Threshold Ratio
V
V
MCP73123, V
MCP73223, V
Low-to-High
Low-to-High
PTH
PTH
BAT
BAT
V
Precondition Hysteresis
V
mV
V
High-to-Low (Note 1)
BAT
PHYS
Charge Termination
Charge Termination
Current Ratio
I
/I
3.7
5.6
7.5
15
5
6.3
9.4
12.5
25
%
PROG = 1 kto 10 k
T =-5°C to +55°C
TERM REG
A
7.5
10
20
Automatic Recharge
Recharge Voltage
Threshold Ratio
V
/V
93
—
95
0
97
—
%
V
High-to-Low
BAT
RTH REG
No Automatic Recharge
Pass Transistor ON-Resistance
ON-Resistance
R
—
350
—
m
V
= 4.5V, T = 105°C (Note 1)
DSON
SINK
DD
J
Status Indicator - STAT
Sink Current
I
—
—
—
20
0.2
35
0.5
1
mA
V
Low Output Voltage
Input Leakage Current
PROG Input
V
I
= 4 mA
OL
SINK
I
0.001
A
High Impedance, V on pin
LK
DD
Charge Impedance Range
Shutdown Impedance
PROG Voltage Range
R
R
V
1
—
0
—
200
—
10
—
5
k
k
V
PROG
PROG
PROG
Impedance for Shutdown
Note 1: Not production tested. Ensured by design.
2009-2013 Microchip Technology Inc.
DS22191E-page 5
MCP73123/223
DC CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise indicated, all limits apply for V = [V
(Typical) + 0.3V] to 12V,
DD
REG
T = -40°C to +85°C. Typical values are at +25°C, V = [V (Typical) + 1.0V]
A
DD
REG
Parameters
Sym.
Min.
Typ.
Max.
Units
Conditions
Automatic Power Down
Automatic Power Down
Entry Threshold
V
V
+
V
+
—
V
V
V
V
Falling
Rising
PDENTRY
BAT
BAT
DD
DD
10 mV
50 mV
Automatic Power Down Exit
Threshold
V
—
V
+
V
+
PDEXIT
BAT
BAT
250 mV
150 mV
Thermal Shutdown
Die Temperature
T
—
—
150
10
—
—
C
C
SD
Die Temperature Hysteresis
T
SDHYS
Note 1: Not production tested. Ensured by design.
AC CHARACTERISTICS
Electrical Specifications: Unless otherwise specified, all limits apply for V = [V
(Typical)+0.3V] to 6V, T =-40°C to +85°C.
A
DD
REG
Typical values are at +25°C, V = [V
(Typical)+1.0V]
DD
REG
Parameters
Sym.
Min.
Typ.
Max.
Units
Conditions
Elapsed Timer
Elapsed Timer Period
t
—
0
—
Hours
Hours
Hours
Hours
Timer Disabled
ELAPSED
3.6
5.4
7.2
4.0
6.0
8.0
4.4
6.6
8.8
Preconditioning Timer
Preconditioning Timer Period
t
—
0
—
Hours
Hours
Disabled Timer
PRECHG
0.4
0.5
0.6
Status Indicator
Status Output turn-off
t
—
—
—
—
500
500
µs
I
= 1 mA to 0 mA
SINK
OFF
(Note 1)
I = 0 mA to 1 mA
SINK
Status Output turn-on
t
ON
(Note 1)
Note 1: Not production tested. Ensured by design.
TEMPERATURE SPECIFICATIONS
Electrical Specifications: Unless otherwise indicated, all limits apply for V = [V
(Typical) + 0.3V] to 6V.
REG
DD
Typical values are at +25°C, V = [V
(Typical) + 1.0V]
DD
REG
Parameters
Sym.
Min.
Typ.
Max.
Units
Conditions
Temperature Ranges
Specified Temperature Range
Operating Temperature Range
Storage Temperature Range
Thermal Package Resistances
Thermal Resistance, DFN-10 (3x3)
T
-40
-40
-65
—
—
—
+85
+125
+150
°C
°C
°C
A
T
J
T
A
—
—
64
12
—
—
°C/W
°C/W
4-Layer JC51-7 Standard Board,
Natural Convection
JA
JC
DS22191E-page 6
2009-2013 Microchip Technology Inc.
MCP73123/223
2.0
TYPICAL PERFORMANCE CURVES
Note:
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
Note: Unless otherwise indicated, VDD = [VREG (Typical) + 1V], IOUT = 50 mA and TA= +25°C, Constant Voltage mode.
7.24
3.66
3.65
3.64
3.63
3.62
3.61
3.60
3.59
3.58
3.57
3.56
3.55
7.23
7.22
7.21
7.20
7.19
7.18
7.17
7.16
ILOAD = 150 mA
BAT = 3.6V
ILOAD = 50 mA
DD = 9.2V
V
V
TA = +25°C
4.5
4.8
5.1
5.4
5.7
6.0
-5
0
5
10 15 20 25 30 35 40 45 50 55
Ambient Temperature (°C)
Supply Voltage (V)
FIGURE 2-1:
Battery Regulation Voltage
FIGURE 2-4:
Battery Regulation Voltage
(VBAT) vs. Supply Voltage (VDD).
(VBAT) vs. Ambient Temperature (TA).
3.620
3.615
3.610
3.605
3.600
3.595
3.65
3.64
3.63
3.62
3.61
3.60
3.59
3.58
3.57
3.56
ILOAD = 50 mA
VBAT = 3.6V
3.590
ILOAD = 150 mA
3.585
V
DD = 5.2V
TA = +25°C
3.55
3.580
4.5
4.8
5.1
5.4
5.7
6.0
-5
0
5
10 15 20 25 30 35 40 45 50 55
Ambient Temperature (°C)
Supply Voltage (V)
FIGURE 2-2:
Battery Regulation Voltage
FIGURE 2-5:
Battery Regulation Voltage
(VBAT) vs. Supply Voltage (VDD).
(VBAT) vs. Ambient Temperature (TA).
1200
7.24
7.23
7.22
7.21
7.20
7.19
VDD = 5.2V
TA = +25°C
1100
1000
900
800
700
600
500
400
300
200
100
0
ILOAD = 50 mA
7.18
V
BAT = 7.2V
7.17
7.16
TA = +25°C
8.4
9.0
9.6
10.2
10.8
11.4
12.0
1 2 3 4 5 6 7 8 9 1011121314151617181920
Supply Voltage (V)
Programming Resistor (kΩ)
FIGURE 2-3:
Battery Regulation Voltage
FIGURE 2-6:
Charge Current (IOUT) vs.
(VBAT) vs. Supply Voltage (VDD).
Programming Resistor (RPROG).
2009-2013 Microchip Technology Inc.
DS22191E-page 7
MCP73123/223
TYPICAL PERFORMANCE CURVES (CONTINUED)
Note: Unless otherwise indicated, VDD = [VREG (Typical) + 1V], IOUT = 10 mA and TA= +25°C, Constant Voltage mode.
950
930
910
890
870
850
830
150
144
138
132
126
120
114
810
790
770
750
108
102
96
RPROG = 1.33 kΩ
TA = +25°C
RPROG = 10 kΩ
TA = +25°C
90
4.5
4.8
5.1
5.4
5.7
6.0
4.5
4.8
5.1
5.4
5.7
6.0
Supply Voltage (V)
Supply Voltage (V)
FIGURE 2-7:
Charge Current (IOUT) vs.
FIGURE 2-10:
Charge Current (IOUT) vs.
Supply Voltage (V).
Programming Resistor (RPROG).
675
655
635
615
595
575
555
535
950
930
910
890
870
850
830
810
515 RPROG = 2 kΩ
RPROG = 1.33 kΩ
VDD = 5.2V
790
770
750
T
A = +25°C
495
475
4.5
4.8
5.1
5.4
5.7
6.0
-5
5
15
25
35
45
55
Supply Voltage (V)
Ambient Temperature (°C)
FIGURE 2-8:
Charge Current (IOUT) vs.
FIGURE 2-11:
Charge Current (IOUT) vs.
Supply Voltage (V).
Ambient Temperature (TA).
9.0
8.0
7.0
6.0
350
330
310
290
270
250
230
210
End of Charge
5.0
4.0
3.0
2.0
1.0
0.0
-1.0
VDD < VBAT
VDD < VSTOP
RPROG = 5 kΩ
190
TA = +25°C
170
150
4.5
4.8
5.1
5.4
5.7
6.0
-5.0
5.0
15.0
25.0
35.0
45.0
55.0
Supply Voltage (V)
Ambient Temperature (°C)
FIGURE 2-9:
Charge Current (IOUT) vs.
FIGURE 2-12:
Output Leakage Current
Supply Voltage (V).
(IDISCHARGE) vs. Ambient Temperature (TA).
DS22191E-page 8
2009-2013 Microchip Technology Inc.
MCP73123/223
TYPICAL PERFORMANCE CURVES (CONTINUED)
Note: Unless otherwise indicated, VDD = [VREG (Typical) + 1V], IOUT = 10 mA and TA= +25°C, Constant Voltage mode.
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
1
Thermal Regulation
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
Charge Current
Input Voltage
Battery Voltage
VDD = 5V
RPROG = 1 kΩ
1100 mAh LiFePO4 Battery
0
10
20
30
40
50
60
70
Time (Minutes)
FIGURE 2-13:
Overvoltage Protection Start
FIGURE 2-16:
Complete Charge Cycle
(50 ms/Div).
(1100 mAh LiFePO4 Battery).
Input Voltage
Source Voltage (V)
Output Ripple (mV)
Battery Voltage
Charge Current
FIGURE 2-14:
Overvoltage Protection Stop
FIGURE 2-17:
Line Transient Response
(50 ms/Div).
(ILOAD = 10 mA, Source Voltage: 2V/Div, Output
Ripple: 100 mV/Div, Time: 100 µs/Div).
Output Ripple (mV)
Output Current (mA)
Source Voltage (V)
Output Ripple (mV)
FIGURE 2-15:
Load Transient Response
FIGURE 2-18:
Line Transient Response
(ILOAD = 50 mA, Output Ripple: 100 mV/Div,
Output Current: 50 mA/Div, Time: 100 µs/Div).
(ILOAD = 100 mA, Source Voltage: 2V/Div, Output
Ripple: 100 mV/Div, Time: 100 µs/Div).
2009-2013 Microchip Technology Inc.
DS22191E-page 9
MCP73123/223
3.0
PIN DESCRIPTION
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1:
PIN FUNCTION TABLE
MCP73123/223
Symbol
I/O
Description
DFN-10
1, 2
3, 4
5, 6
7
VDD
VBAT
NC
I
Battery Management Input Supply
I/O Battery Charge Control Output
—
O
No Connection
STAT
VSS
Battery Charge Status Output
8, 9
10
—
Battery Management 0V Reference
PROG
EP
I/O Battery Charge Current Regulation Program and Charge Control Enable
Exposed Pad
11
—
3.1
Battery Management Input Supply
(V
3.5
Battery Management 0V Reference
(V
)
)
SS
DD
A supply voltage of [VREG (Typical) + 0.3V] to 6.0V is
recommended for MCP73123, while a supply voltage
of [VREG (Typical) + 0.3V] to 12.0V is recommended for
MCP73223. Bypass to VSS with a minimum of 1 µF.
The VDD pin is rated 18V absolute maximum to prevent
sudden rise of input voltage from spikes or low cost
AC-DC wall adapter.
Connect to the negative terminal of the battery and
input supply.
3.6
Current Regulation Set (PROG)
The fast charge current is set by placing a resistor from
PROG to VSS during constant current (CC) mode.
The PROG pin also serves as a charge control enable
pin. Allowing the PROG pin to float or connecting the
pin to an impedance greater than 200 k will disable
the MCP73123/223 charger. Refer to Section 5.5,
"Constant Current Mode – Fast Charge", for details.
3.2
Battery Charge Control Output
(V
)
BAT
Connect to the positive terminal of the battery. Bypass
to VSS with a minimum of 1 µF to ensure loop stability
when the battery is disconnected. The MCP73123 is
designed to provide 3.6V battery regulation voltage for
LiFePO4 batteries. Undercharge may occur if a typical
Li-Ion or Li-Poly battery is used.
3.7
Exposed Pad (EP)
The Exposed Thermal Pad (EP) shall be connected to
the exposed copper area on the Printed Circuit Board
(PCB) to enhance thermal power dissipation.
Additional vias on the copper area under the
MCP73123/223 device will improve the performance of
heat dissipation and simplify the assembly process.
Connecting EP to VSS is recommended.
3.3
No Connect (NC)
No connect.
3.4
Status Output (STAT)
STAT is an open-drain logic output for connection to an
LED for charge status indication in stand-alone
applications. Alternatively, a pull-up resistor can be
applied for interfacing to a host microcontroller. Refer to
Table 5-1 for a summary of the status output during a
charge cycle.
DS22191E-page 10
2009-2013 Microchip Technology Inc.
MCP73123/223
4.0
DEVICE OVERVIEW
The MCP73123/223 are simple, but fully integrated
linear charge management controllers. Figure 4-1
depicts the operational flow algorithm.
SHUTDOWN MODE
VDD < VUVLO
VDD < VPD
or
PROG > 200 k
STAT = High-Z
VBAT < VPTH
TIMER FAULT
VDD < VOVP
PRECONDITIONING MODE
Charge Current = IPREG
Timer Expired
No Charge Current
STAT = High-Z (Type 1)
STAT = Flashing (Type 2)
Timer Suspended
STAT = LOW
Timer Reset
Timer Enable
VDD > VOVP
VDD > VOVP
V
BAT > VPTH
VBAT > VPTH
FAST CHARGE MODE
Charge Current = IREG
OVERVOLTAGE PROTECTION
Timer Expired
VBAT < VRTH
No Charge Current
STAT = High-Z
Timer Suspended
STAT = LOW
Timer Reset
Timer Enabled
TIMER FAULT
No Charge Current
STAT = High-Z (Type 1)
STAT = Flashing (Type 2)
Timer Suspended
VDD < VOVP
VBAT = VREG
VDD > VOVP
VDD < VOVP
CONSTANT VOLTAGE MODE
Charge Voltage = VREG
STAT = LOW
VBAT < ITERM
Die Temperature < TSDHYS
Charge Mode Resume
CHARGE COMPLETE MODE
VBAT > VSHORT
No Charge Current
STAT = High-Z
Timer Reset
Charge Mode Resume
Die Temperature > TSD
VBAT < VSHORT
TEMPERATURE FAULT
No Charge Current
BATTERY SHORT PROTECTION
Charge Current = ISHORT
STAT = High-Z (Type 1)
STAT = High-Z (Type 1)
STAT = Flashing (Type 2)
Timer Suspended
STAT = Flashing (Type 2)
Timer Suspended
FIGURE 4-1:
The MCP73123/223 Flow Chart.
2009-2013 Microchip Technology Inc.
DS22191E-page 11
MCP73123/223
5.3.2
BATTERY CHARGE CONTROL
OUTPUT (VBAT
5.0
5.1
DETAILED DESCRIPTION
Undervoltage Lockout (UVLO)
)
The battery charge control output is the drain terminal
of an internal P-channel MOSFET. The MCP73123/223
provides constant current and voltage regulation to the
battery pack by controlling this MOSFET in the linear
region. The battery charge control output should be
connected to the positive terminal of the battery pack.
An internal undervoltage lockout (UVLO) circuit
monitors the input voltage and keeps the charger in
Shutdown mode until the input supply rises above the
UVLO threshold. In the event a battery is present when
the input power is applied, the input supply must rise
approximately 150 mV above the battery voltage
before the MCP73123/223 becomes operational.
5.3.3
BATTERY DETECTION
The MCP73123/223 detects the battery presence by
monitoring the voltage at VBAT. The charge flow will
initiate when the voltage on VBAT is below the
VRECHARGE threshold. Refer to the Section 1.0,
"Electrical Characteristics", for VRECHARGE values.
The UVLO circuit places the device in Shutdown mode
if the input supply falls to approximately 150 mV above
the battery voltage.The UVLO circuit is always active.
At any time, the input supply is below the UVLO
threshold or approximately 150 mV of the voltage at the
VBAT pin, the MCP73123/223 device is placed in a
Shutdown mode.
When VBAT > VREG + Hysteresis, the charge will be
suspended or not started, depending on the current
charge status, to prevent overcharging.
5.2
Overvoltage Protection (OVP)
5.4
Preconditioning
An internal OVP circuit monitors the input voltage and
keeps the charger in Shutdown mode when the input
supply rises above the OVP threshold. The hysteresis
of OVP is approximately 150 mV for the MCP73123/
223 device.
If the voltage at the VBAT pin is less than the
preconditioning threshold, the MCP73123/223 device
enters a Preconditioning mode. The preconditioning
threshold is factory set. Refer to Section 1.0,
"Electrical Characteristics", for preconditioning
threshold options.
The MCP73123/223 device is operational between
UVLO and OVP threshold. The OVP circuit is also
recognized as an overvoltage lockout (OVLO).
In this mode, the MCP73123/223 device supplies 10%
of the fast charge current (established with the value of
the resistor connected to the PROG pin) to the battery.
5.3
Charge Qualification
When the voltage at the VBAT pin rises above the
preconditioning threshold, the MCP73123/223 device
enters the Constant Current (Fast Charge) mode.
When the input power is applied, the input supply must
rise 150 mV above the battery voltage before the
MCP73123/223 becomes operational.
The automatic power down circuit places the device in
Shutdown mode if the input supply falls to within
+50 mV of the battery voltage.
Note:
5.4.1
The MCP73123/223 also offers options
with no preconditioning.
TIMER EXPIRED DURING
PRECONDITIONING MODE
The automatic circuit is always active. At any time the
input supply is within +50 mV of the voltage at the
VBAT pin, the MCP73123/223 is placed in a Shutdown
mode.
If the internal timer expires before the voltage threshold
is reached for Fast Charge mode, a timer fault is
indicated and the charge cycle terminates. The
MCP73123/223 device remains in this condition until
the battery is removed or input power is cycled. If the
battery is removed, the MCP73123/223 device enters
Standby mode, where it remains until a battery is rein-
serted.
For a charge cycle to begin, the automatic power
down conditions must be met and the charge enable
input must be above the input high threshold.
Note:
In order to extend the battery cycle life, the
charge will initiate only when battery
voltage is below 3.4V per cell.
Note:
The typical preconditioning timer for
MCP73123/223 is 32 minutes. The
MCP73123/223 also offers options with no
preconditioning timer.
5.3.1
BATTERY MANAGEMENT INPUT
SUPPLY (VDD
The VDD input is the input supply to the MCP73123/
223. The MCP73123/223 automatically enters
)
a
5.5
Constant Current Mode – Fast
Charge
Power-down mode if the voltage on the VDD input falls
to within +50 mV of the battery voltage. This feature
prevents draining the battery pack when the VDD
supply is not present.
During the Constant Current mode, the programmed
charge current is supplied to the battery or load.
DS22191E-page 12
2009-2013 Microchip Technology Inc.
MCP73123/223
The charge current is established using a single
resistor from PROG to VSS. The program resistor and
the charge current are calculated using Equation 5-1
and Equation 5-2.
5.5.1
TIMER EXPIRED DURING
CONSTANT CURRENT – FAST
CHARGE MODE
If the internal timer expires before the recharge voltage
threshold is reached, a timer fault is indicated and the
charge cycle terminates. The MCP73123/223 device
remains in this condition until the battery is removed. If
the battery is removed or input power is cycled, the
MCP73123/223 device enters the Standby mode,
where it remains until a battery is reinserted.
EQUATION 5-1:
IREG = 1104 R–0.93
Where:
RPROG
IREG
=
=
kilo-ohms (k)
milliampere (mA)
5.6
Constant Voltage Mode
When the voltage at the VBAT pin reaches the
regulation voltage, VREG, constant voltage regulation
begins. The regulation voltage is factory set to 3.6V for
a single cell, with a tolerance of ±0.5%; or 7.2V for dual
cells, with a tolerance of ±0.6%.
EQUATION 5-2:
RPROG = 10logI
REG 1104 –0.93
Where:
RPROG
IREG
=
=
kilo-ohms (k)
5.7
Charge Termination
milliampere (mA)
The charge cycle is terminated when, during Constant
Voltage mode, the average charge current diminishes
below a threshold established with the value of 5%,
7.5%, 10% or 20% of fast charge current or internal
timer has expired. A 1 ms filter time on the termination
comparator ensures that transient load conditions do
not result in premature charge cycle termination. The
timer period is factory set and can be disabled. Refer to
Section 1.0, "Electrical Characteristics", for timer
period options.
Table 5-1 provides commonly seen E96 (1%) and E24
(5%) resistors for various charge current to reduce
design time.
TABLE 5-1:
Charge
RESISTOR LOOKUP TABLE
Recommended Recommended
Current (mA) E96 Resistor () E24 Resistor ()
130
150
200
250
300
350
400
450
500
550
600
650
700
750
800
850
900
950
1000
1100
10k
10k
8.45k
6.20k
4.99k
4.02k
3.40k
3.00k
2.61k
2.32k
2.10k
1.91k
1.78k
1.62k
1.50k
1.40k
1.33k
1.24k
1.18k
1.10k
1.00k
8.20k
6.20k
5.10k
3.90k
3.30k
3.00k
2.70k
2.37k
2.20k
2.00k
1.80k
1.60k
1.50k
1.50k
1.30k
1.20k
1.20k
1.10k
1.00k
5.8
Automatic Recharge
The MCP73123/223 device continuously monitors the
voltage at the VBAT pin in the Charge Complete mode.
If the voltage drops below the recharge threshold,
another charge cycle begins and current is once again
supplied to the battery or load. The recharge threshold
is factory set. Refer to Section 1.0, "Electrical
Characteristics", for recharge threshold options.
Note:
The MCP73123/223 also offer options
with no automatic recharge.
For the MCP73123/223 device with no recharge option,
the MCP73123/223 will go into Standby mode when the
termination condition is met. The charge will not restart
until at least one of the following conditions have been
met:
• The battery is removed from the system and
inserted again
• VDD is removed and plugged in again
•
RPROG is disconnected (or high impedance) and
reconnected
Constant Current mode is maintained until the voltage
at the VBAT pin reaches the regulation voltage, VREG
.
When Constant Current mode is invoked, the internal
timer is reset.
2009-2013 Microchip Technology Inc.
DS22191E-page 13
MCP73123/223
5.9
Thermal Regulation
5.11 Status Indicator
The MCP73123/223 limits the charge current, based
on the die temperature. This thermal regulation
optimizes the charge cycle time while maintaining
device reliability. Figure 5-1 depicts the thermal
regulation for the MCP73123/223 device. Refer to
Section 1.0, "Electrical Characteristics", for thermal
package resistances and Section 6.1.1.2 “Thermal
Considerations”, for calculating power dissipation.
.
The charge status outputs are open-drain outputs with
two different states: Low (L) and High Impedance
(High-Z). The charge status outputs can be used to
illuminate LEDs. Optionally, the charge status outputs
can be used as an interface to a host microcontroller.
Table 5-2 summarizes the state of the status outputs
during a charge cycle.
TABLE 5-2:
STATUS OUTPUTS
CHARGE CYCLE
600
500
400
300
200
STAT
STATE
Shutdown
Standby
High-Z
High-Z
Preconditioning
L
L
Constant Current Fast
Charge
VDD = 5.2V
100
Constant Voltage
L
RPROG = 2 kΩ
Charge Complete - Standby
Temperature Fault
High-Z
0
1.6 second 50% DC
Flashing (Type 2)
High-Z (Type 1)
25 35 45 55 65 75 85 95 105 115 125 135 145
Junction Temperature (°C)
FIGURE 5-1:
Thermal Regulation.
Timer Fault
1.6 second 50% DC
Flashing (Type 2)
High-Z (Type 1)
5.10 Thermal Shutdown
Preconditioning Timer Fault
1.6 second 50% DC
Flashing (Type 2)
High-Z (Type 1)
The MCP73123/223 suspends charge if the die
temperature exceeds +150°C. Charging will be
resumed when the die temperature has cooled by
approximately 10°C. This thermal shutdown is a
secondary safety feature in the event that there is a
failure within the thermal regulation circuitry.
5.12 Battery Short Circuit Protection
When a lithium iron phosphate battery is detected, an
internal battery short circuit protection circuit starts
monitoring the battery voltage. When VBAT is below the
typical 1.7V battery short circuit protection threshold
voltage per cell, the charging behavior is postponed. A
25 mA (typical) detection current is supplied for
recovering from the battery short circuit condition.
Preconditioning mode resumes when VBAT rises above
the battery short circuit protection threshold. The
battery voltage must rise approximately 150 mV above
the battery short circuit protection voltage before the
MCP73123/223 device becomes operational.
DS22191E-page 14
2009-2013 Microchip Technology Inc.
MCP73123/223
6.0
APPLICATIONS
The MCP73123/223 is designed to operate with a
host microcontroller or in stand-alone applications.
The MCP73123/223 provides the preferred charge
algorithm for lithium iron phosphate cells, Constant
Current mode followed by Constant Voltage mode.
Figure 6-1 depicts a typical stand-alone application
circuit, while Figure 6-2 depicts the accompanying
charge profile.
MCP73123 Typical Application
3
1
AC-DC Adapter
5V DC Output
VDD
VDD
VBAT
VBAT
4
2
7
+
4.7 µF
4.7 µF
1-Cell
10
PROG
STAT
NC
LiFePO4
Battery
1 k
1.0 k
-
5
6
9
8
VSS
VSS
NC
FIGURE 6-1:
Typical Application Circuit.
7.0
6.0
5.0
4.0
3.0
1
Thermal Regulation
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
2.0
VDD = 5V
R
PROG = 1 kΩ
1100 mAh LiFePO4 Battery
1.0
0.0
0
10
20
30
40
50
60
70
Time (Minutes)
FIGURE 6-2:
Typical Charge Profile for
Single-Cell LiFePO4 Battery.
2009-2013 Microchip Technology Inc.
DS22191E-page 15
MCP73123/223
Power dissipation with a 5V, ±10% input voltage
source, 500 mA ±10% and preconditioning threshold
voltage at 2V is calculated using Equation 6-2.
6.1
Application Circuit Design
Due to the low efficiency of linear charging, the most
important factors are thermal design and cost, which
are a direct function of the input voltage, output current
and thermal impedance between the battery charger
and the ambient cooling air. The worst-case situation is
when the device has transitioned from the
Preconditioning mode to the Constant Current mode. In
this situation, the battery charger has to dissipate the
maximum power. A trade-off must be made between
the charge current, cost, and thermal requirements of
the charger.
EQUATION 6-2:
PowerDissipation = 5.5V – 2V 550mA = 1.925W
This power dissipation with the battery charger in the
DFN-10 package will raise the temperature
approximately 83C above room temperature.
6.1.1.3
External Capacitors
6.1.1
COMPONENT SELECTION
The MCP73123/223 is stable with or without a battery
load. In order to maintain good AC stability in the
Constant Voltage mode, a minimum capacitance of
Selection of the external components in Figure 6-1 is
crucial to the integrity and reliability of the charging
system. The following discussion is intended as a guide
for the component selection process.
1 µF is recommended to bypass the VBAT pin to VSS
.
This capacitance provides compensation when there is
no battery load. In addition, the battery and
interconnections appear inductive at high frequencies.
These elements are in the control feedback loop during
Constant Voltage mode. Therefore, the bypass
capacitance may be necessary to compensate for the
inductive nature of the battery pack.
6.1.1.1
Charge Current
The recommended fast charge current should be
obtained from the battery manufacturer. For
example, a 1000 mAh battery pack with 2C preferred
fast charge current has a charge current of 1000 mA.
Charging at this rate provides the shortest charge cycle
times without degradation of the battery pack
performance or life.
A minimum of 1 µF is recommended for the output
capacitor, and a minimum of 1 µF is recommended for
the input capacitor in typical applications.
TABLE 6-1:
MLCC CAPACITOR EXAMPLE
Note:
Please consult with your battery supplier
or refer to the battery data sheet for the
preferred charge rate.
MLCC
Capacitors
Temperature
Tolerance
Range
6.1.1.2
Thermal Considerations
X7R
X5R
-55C to +125C
-55C to +85C
±15%
±15%
The worst-case power dissipation in the battery
charger occurs when the input voltage is at the
maximum and the device has transitioned from the
Preconditioning mode to the Constant Current mode.
In this case, the power dissipation is calculated using
Equation 6-1.
Virtually any good quality output filter capacitor can be
used, independent of the capacitor’s minimum
Effective Series Resistance (ESR) value. The actual
value of the capacitor (and its associated ESR)
depends on the output load current. A 1 µF ceramic,
tantalum, or aluminum electrolytic capacitor at the
output is usually sufficient to ensure stability.
EQUATION 6-1:
PowerDissipation = V
– V
I
PTHMIN REGMAX
DDMAX
Where:
6.1.1.4
Reverse-Blocking Protection
The MCP73123/223 provides protection from a faulted
or shorted input. Without the protection, a faulted or
shorted input would discharge the battery pack through
the body diode of the internal pass transistor.
VDDMAX
IREGMAX
VPTHMIN
=
=
=
the maximum input voltage
the maximum fast charge current
the minimum transition threshold
voltage
DS22191E-page 16
2009-2013 Microchip Technology Inc.
MCP73123/223
6.2
PCB Layout Issues
For optimum voltage regulation, place the battery pack
as close as possible to the device’s VBAT and VSS pins
to minimize voltage drops along the high-current-
carrying PCB traces.
If the PCB layout is used as a heat sink, adding multiple
vias in the heat sink pad can help conduct more heat to
the backplane of the PCB, thus reducing the maximum
junction temperature. Figure 6-3, Figure 6-4 and
Figure 6-5 depict a typical layout with PCB heatsinking.
FIGURE 6-5:
Typical Layout (Bottom).
MCP73X23EV-LFP
FIGURE 6-3:
Typical Layout (Top).
FIGURE 6-4:
Typical Layout (Top Metal).
2009-2013 Microchip Technology Inc.
DS22191E-page 17
MCP73123/223
7.0
7.1
PACKAGING INFORMATION
Package Marking Information
10-Lead DFN (3x3)
Example:
Standard *
Part Number
MCP73123-22SI/MF
MCP73223-C2SI/MF
XXXX
77HI
1225
Code
YYWW
NNN
77HI
X7HI
256
Legend: XX...X Customer-specific information
Y
Year code (last digit of calendar year)
YY
WW
NNN
Year code (last 2 digits of calendar year)
Week code (week of January 1 is week ‘01’)
Alphanumeric traceability code
e
3
Pb-free JEDEC designator for Matte Tin (Sn)
*
This package is Pb-free. The Pb-free JEDEC designator ( )
e
3
can be found on the outer packaging for this package.
Note: In the event the full Microchip part number cannot be marked on one line, it will
be carried over to the next line, thus limiting the number of available
characters for customer-specific information.
DS22191E-page 18
2009-2013 Microchip Technology Inc.
MCP73123/223
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
2009-2013 Microchip Technology Inc.
DS22191E-page 19
MCP73123/223
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
DS22191E-page 20
2009-2013 Microchip Technology Inc.
MCP73123/223
Note: For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
2009-2013 Microchip Technology Inc.
DS22191E-page 21
MCP73123/223
NOTES:
DS22191E-page 22
2009-2013 Microchip Technology Inc.
MCP73123/223
APPENDIX A: REVISION HISTORY
Revision E (February 2013)
The following is the list of modifications:
1. Updated the Functional Block Diagram.
2. Updated the Temperature Specifications table.
3. Updated Section 3.6 “Current Regulation Set
(PROG)”.
4. Updated Section 5.3.3 “Battery Detection”.
5. Updated Equation 5-2.
Revision D (June 2011)
The following is the list of modifications:
1. Updated the land pattern drawing of the 3x3
DFN package on page 27.
Revision C (January 2011)
The following is the list of modifications:
1. Added two more part numbers in Table 2.
2. Updated the flowchart in Figure 4-1.
Revision B (January 2010)
The following is the list of modifications:
1. Updated the OVP value for MCP73223-C2S/MF
in Table 2.
2. Updated the Battery Short Protection values in
the DC Characteristics table.
Revision A (July 2009)
• Original Release of this Document.
2009-2013 Microchip Technology Inc.
DS22191E-page 23
MCP73123/223
NOTES:
DS22191E-page 24
2009-2013 Microchip Technology Inc.
MCP73123/223
PRODUCT IDENTIFICATION SYSTEM
To order or obtain information, e.g., on pricing or delivery, contact your local Microchip sales office.
Examples:
PART NO.
Device
X
XX
a) MCP73123-22SI/MF:
Single Cell Lithium Iron
Phosphate Battery Device
Temperature Package
Range
b) MCP73123T-22SI/MF: Tape and Reel,
Single Cell Lithium Iron
Phosphate Battery Device
Device:
MCP73123:
Single Cell Lithium Iron Phosphate Battery
Device
a) MCP73223-C2SI/MF: Dual Cell Lithium Iron
Phosphate Battery Device
MCP73123T: Single Cell Lithium Iron Phosphate Battery
Device, Tape and Reel
MCP73223:
a) MCP73223T-C2SI/MF: Tape and Reel,
Dual Cell Lithium Iron
Dual Cell Lithium Iron Phosphate Battery
Device
Phosphate Battery Device
MCP73223T: Dual Cell Lithium Iron Phosphate Battery
Device, Tape and Reel
Consult your local Microchip sales office for alternative
device options.
Temperature
Range:
I
= -40C to +85C (Industrial)
Package:
MF = Plastic Dual Flat No Lead, 3x3 mm Body (DFN),
10-Lead
2009-2013 Microchip Technology Inc.
DS22191E-page 25
MCP73123/223
NOTES:
DS22191E-page 26
2009-2013 Microchip Technology Inc.
Note the following details of the code protection feature on Microchip devices:
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
•
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
•
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
•
•
Microchip is willing to work with the customer who is concerned about the integrity of their code.
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at
the buyer’s risk, and the buyer agrees to defend, indemnify and
hold harmless Microchip from any and all damages, claims,
suits, or expenses resulting from such use. No licenses are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights.
Trademarks
The Microchip name and logo, the Microchip logo, dsPIC,
FlashFlex, KEELOQ, KEELOQ logo, MPLAB, PIC, PICmicro,
PICSTART, PIC logo, rfPIC, SST, SST Logo, SuperFlash
and UNI/O are registered trademarks of Microchip Technology
Incorporated in the U.S.A. and other countries.
32
FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor,
MTP, SEEVAL and The Embedded Control Solutions
Company are registered trademarks of Microchip Technology
Incorporated in the U.S.A.
Silicon Storage Technology is a registered trademark of
Microchip Technology Inc. in other countries.
Analog-for-the-Digital Age, Application Maestro, BodyCom,
chipKIT, chipKIT logo, CodeGuard, dsPICDEM,
dsPICDEM.net, dsPICworks, dsSPEAK, ECAN,
ECONOMONITOR, FanSense, HI-TIDE, In-Circuit Serial
Programming, ICSP, Mindi, MiWi, MPASM, MPF, MPLAB
Certified logo, MPLIB, MPLINK, mTouch, Omniscient Code
Generation, PICC, PICC-18, PICDEM, PICDEM.net, PICkit,
PICtail, REAL ICE, rfLAB, Select Mode, SQI, Serial Quad I/O,
Total Endurance, TSHARC, UniWinDriver, WiperLock, ZENA
and Z-Scale are trademarks of Microchip Technology
Incorporated in the U.S.A. and other countries.
SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.
GestIC and ULPP are registered trademarks of Microchip
Technology Germany II GmbH & Co. & KG, a subsidiary of
Microchip Technology Inc., in other countries.
All other trademarks mentioned herein are property of their
respective companies.
© 2009-2013, Microchip Technology Incorporated, Printed in
the U.S.A., All Rights Reserved.
Printed on recycled paper.
ISBN: 978-1-62076-998-0
QUALITY MANAGEMENT SYSTEM
CERTIFIED BY DNV
Microchip received ISO/TS-16949:2009 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
== ISO/TS 16949 ==
2009-2013 Microchip Technology Inc.
DS22191E-page 27
Worldwide Sales and Service
AMERICAS
ASIA/PACIFIC
ASIA/PACIFIC
EUROPE
Corporate Office
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Toronto
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Canada
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Tel: 86-592-2388138
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Fax: 86-756-3210049
11/29/12
DS22191E-page 28
2009-2013 Microchip Technology Inc.
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