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LX2208
TM (R)
2 Amp Three Level Lithium Ion Battery Charger
PRODUCTION DATA SHEET
DESCRIPTION
KEY FEATURES Up to 2A Charging Current Integrated Power MOSFET Three Charge Levels for Adapter, and USB Hi and Low Charge Battery from a Current Limited Adapter 0.5% Battery Voltage Accuracy USB Current Compliance Battery Full Indicator CC/CV with Thermal Feedback Battery Temperature Monitor Precision Charge Termination Protection features: Unsafe Battery Temp Lockout Internal IC Temp Regulator USB Current Limiter Reverse Current Blocking Under Voltage Lockout False Termination Prevention under Low Supply Conditions
The LX2208 is a single cell Lithium Ion or Lithium Polymer battery charger. The controller will charge a single cell Li-Ion battery from either a wall adapter or a USB power source. A low under-voltage lockout level increases usable charging range from a current limited power source. In addition, there is a linear die temperature thermal control loop, which limits the heat dissipation while still charging the battery. There are three logic selectable and programmable charge current levels: the high charge programming level is typically set for charging from the wall adapter, the low level charge programming is typically set to 500mA for full USB charging and 100mA (20%) for reduced USB charging. In addition to setting the high-level charge current, the HCP programming resistor also sets the termination current at 10% of the constant current
level and the conditioning current at 5% of the constant current level. Power status indicators STAT and DC OK can be configured to show charge in progress, battery fully charged and external power on. The STAT pin is capable of sourcing or sinking 5mA. The DC OK output is an open drain output and can sink 10mA. The LX2208 enters a low quiescent current shut down when power is removed from the IN pin or when it is logically shutdown to minimize battery drain. Protection features include: under voltage lock out, reverse current blocking on the IN pin, internal die temperature thermal loop to reduce charge current to maintain a safe die temperature, and a unsafe battery temperature charge inhibitor. For charging deeply discharged batteries, the controller includes a conditioning charge mode. The LX2208 comes in a 3x3mm 12 pin MLPD package.
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o o o o o o
APPLICATIONS
IMPORTANT: For the most current data, consult MICROSEMI's website: http://www.microsemi.com
Navigation Devices Multi-Media Players Handheld Devices Digital Cameras
PRODUCT HIGHLIGHT
Status Charging Adapter or USB Adapter or USB Select Shutdown USB Hi/Low IN CMP H/L SD 20% HCP LCP Current Programming GND Battery STAT Full DC OK TMP BAT + Battery Temperature Lockout Sensing Power On
LX2208
LX2208 LX2208
PACKAGE ORDER INFO
TA (C) -40 to 85
LD
Plastic MLPD 3 x 3mm 12 pin
RoHS Compliant / Pb-free
LX2208ILD
Note: Available in Tape & Reel. Append the letters "TR" to the part number. (i.e. LX2208ILD-TR)
Copyright (c) 2007 Rev. 1.0, 2007-04-03
Microsemi
Analog Mixed Signal Group 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
LX2208
TM (R)
2 Amp Three Level Lithium Ion Battery Charger
PRODUCTION DATA SHEET
PACKAGE PIN OUT
ABSOLUTE MAXIMUM RATINGS Supply Input Voltage (IN, BAT) ...................................................................... -0.3V to 7V All other pins ............................................................................................-0.3V to VSUPPLY Battery Charging Current .............................................................................................2.5A Operating Ambient Temperature Range (TA) ..................................................-40 to 125C Maximum Operating Junction Temperature .............................................................. 150C Storage Temperature Range.........................................................................-65C to 150C Lead Temperature (Soldering 10 seconds)................................................................. 300C Peak Temp. for Solder Reflow (40 seconds maximum exposure).................. 260C (+0 -5)
Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into, negative out of specified terminal.
IN CMP STAT DC OK SD 20%
1
12
BAT
2208 XXXX MSC
LD Package
(Top View)
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2 3 4 5 6
11 10 9 8 7
TMP HCP LCP H/L GND
THERMAL DATA
RoHS / Pb-free 100% matte Tin Pin Finish
LD
Plastic Micro Leadframe Package 12-Pin 33C/W*
THERMAL RESISTANCE-JUNCTION TO AMBIENT, JA
Junction Temperature Calculation: TJ = TA + (PD x JA). *The JA numbers are guidelines for the thermal performance of the device/pc-board system. All of the above assume no ambient airflow. See layout guidelines section for important details.
FUNCTIONAL PIN DESCRIPTION Name BAT CMP
DC OK
Pin 12 2 4 7 10
Description Output, Battery Connection - This pin is wired to the positive terminal of a single cell Lithium Ion/Polymer battery. Input, Compensation - Connect a series combination of a 1k resistor and 0.47F capacitor from IN to CMP. Output, Power status logic pin and LED driver - This pin is an open drain output that can sink 10mA of current to drive an external LED. This pin is low impedance to GND when the IN pin input voltage is high enough to charge the battery. Common Ground - Used as chip ground and as a reference for the battery return. Input, High Current Programming and Termination Current Programming - A resistor (RHCP) between this pin and GND sets the constant current high level. The following relationship determines the charging current of constant current mode: Typically IBAT=7150/RHCP when H/ L is high. The termination current is set to 1/10 of the HCP current level, and the conditioning current is set to 1/20 of the HCP current level.
GND HCP
H/ L IN LCP SD STAT
8 1 9 5 3
High or Low load select logic input - A logic high selects the constant charge current level set by the HCP pin resistor RHCP and a logic low selects the constant charge current level set by the LCP pin resistor RLCP. Input Power - Connect to a wall adapter or a USB port. Input, Low Current Programming - A resistor (RLCP) between this pin and GND sets the constant current low level. The following relationship determines the charging current of constant current mode: Typically IBAT=7150/RLCP when H/ L is low and 20% is high. Input, Shutdown - A logic high places the LX2208 in shut down mode; it can also be used for USB suspend mode. Output, Charging status logic pin and LED driver - This pin can source or sink 5mA of current to drive an external LED in either output state. This pin is low when the battery is in charging mode and becomes high when the charge cycle is finished. It becomes high impedance when the input power is removed. Input, Battery Temperature Monitor - This sense pin determines the battery temperature. It is connected to a resistor network as defined in the application note. When the TMP pin falls below 29% (typ) of VIN or rises above 74% (typ) of VIN it suspends charging. Ground the TMP pin if it is not used.
20% Select logic input - This pin is only monitored when the H/ L pin is low. A logic high on 20% pin selects the constant charge current level set by the LCP pin resistor RLCP. A logic low selects 20% of the constant charge current level set by the LCP pin resistor RLCP .
LX2208 LX2208
TMP
11
20%
6
Copyright (c) 2007 Rev. 1.0, 2007-04-03
Microsemi
Analog Mixed Signal Group 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 2
LX2208
TM (R)
2 Amp Three Level Lithium Ion Battery Charger
PRODUCTION DATA SHEET
Unless otherwise specified, the following specifications apply over the operating ambient temperature -40C TA 85C and the following test conditions: VIN = 5.0V; VSD = Low; VH/ L = High, V 20% = High; VBAT = 3.6V; RHCP =15.8k, RLCP=15.8k; VTMP = 0V. LX2208 Parameter Symbol Test Conditions Units Min Typ Max
INPUT CIRCUITRY Input Voltage Under Voltage Charging Lockout IN UVLO Hysteresis IN Input Supply Current BATTERY CHARGER Constant Voltage Charging Constant Voltage Charging Constant Voltage Charging Charge Current Charge Current Charge Current Low Level Charge Current 20% Charge Current Ratio Condition Current Condition Current Conditioning Current Threshold Termination Current Termination Current Top Off Threshold Top Off Threshold Battery Drain Current Battery Drain Current Battery Drain Current LOGIC STAT High Output STAT Low Output Input Logic : SD, H/ L , 20% Input Current : SD, H/ L , 20% Output Logic : DC OK BATTERY TEMPERATURE MONITOR Cold Threshold Cold Threshold Hot Threshold Hot Threshold TFB Disable Volt VIN VIN(UVLO) IIN VBAT VBAT VBAT IBAT IBAT IBAT IBAT IBAT IBAT IBAT VBAT IBAT IBAT VBAT VBAT IBAT IBAT IBAT VSTAT VSTAT VLOG ILOG VLOG(OUT) VTFB VTFB VTFB VTFB VTFB 4.35 2.9 5 3.1 225 1 10 4.2 4.2 4.2 2000 1000 453 453 20 100 50 2.7 250 125 97 97 5 5 2.5 4.5 725 2.5 0 6 3.3 2 50 4.22 4.24 4.24 2200 1100 500 476 22 150 75 2.9 V V mV mA A V V V mA mA mA mA % mA mA V mA mA % % A A A V V mV A V %VIN % VIN % VIN % VIN mV
ELECTRICAL CHARACTERISTICS
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Rising input VBAT = 2.8V VBAT = 4.2V (battery charged) SD = High (shutdown mode) IBAT < 100mA @ 25C (4.5V to 5.5V) IBAT < 100mA (4.5V to 5.5V) IBAT < 100mA (4.35V to 6V) RHCP = 3.57k RHCP = 7.15k RHCP = 15.8k VH/ L = Low I(V 20% = Low) / I (V 20% = High); VH/ L = Low VBAT < VCCT; RHCP = 3.57k VBAT < VCCT; RHCP = 7.15k Rising Battery Voltage RHCP = 3.57k RHCP = 7.15k
4.18 4.16 4.10 1800 900 400 408 18 50 25 2.5
VBAT = 4.2V (battery charged, VIN > 4.5V) VBAT > VIN VSD=High (shutdown mode) VIN = 5.0V, IDRV = -5mA VIN = 5.0V, IDRV = 5mA Input Logic Threshold Input Current, VLOG = 2V Input Current, VLOG = 0V Logic Hi Output, 10k Pull up to 3.3V Logic Low Output, ILOG = 10mA Rising Voltage Falling Voltage Falling Voltage Rising Voltage 4.2 450 0 -2 3.2
0C TA 85C -40C TA 85C
96 96
98 98.5 15 15 5 5 0.5 1000 5 2 0.5
72 70.5 27 28 70
75 72 28 30 100
76.5 74 30 31 150
LX2208 LX2208
Copyright (c) 2007 Rev. 1.0, 2007-04-03
Microsemi
Analog Mixed Signal Group 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 3
LX2208
TM (R)
2 Amp Three Level Lithium Ion Battery Charger
PRODUCTION DATA SHEET
SIMPLIFIED BLOCK DIAGRAM
-
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+ SD
5
UVLO TMP
ENABLE DCOK
4
11
CMP
STAT CHARGE CONTROL
3
2
IN
BAT
1
12
CONSTANT VOLTAGE CONTROL
CHARGE TERMINATION CONTROL
TEMPERATURE CONTROL
CONDITIONING THRESHOLD H/L
8
20% COND. CURRENT
6
LCP LOW CHARGING CURRENT
9
LX2208 LX2208
HCP
10
GND
HIGH CHARGING CURRENT
7
Copyright (c) 2007 Rev. 1.0, 2007-04-03
Microsemi
Analog Mixed Signal Group 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 4
LX2208
TM (R)
2 Amp Three Level Lithium Ion Battery Charger
PRODUCTION DATA SHEET
CONTROL LOGIC DIAGRAM
START
RETURN TO START IF VDDBAT, UVLO, or SD CHANGES STATE.
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Definition of VDDBAT: VDDBAT =1 if VIN >VBAT =0 if VIN < VBAT
SD
NO
YES
VIN > VBAT
YES
NO
SLEEP
UVLO
NO
YES
VOLTAGE MONITORING MODE (STATE).
VBAT<97%
YES
NO
VBAT>60%
YES
NO
CONDITION CHARGE MODE
CONSTANT VOLTAGE CHARGE MODE
CONSTANT CURRENT CHARGE MODE
IMAX DETERMINED BY THE STATE OF H/L, RHCP, RLCP and 20%. TEMP < 130 YES NO
REDUCE CHARGE CURRENT
TEMP <
130C
YES
NO
REDUCE CHARGE CURRENT
ICC< IMAX
YES
NO
REDUCE CHARGE CURRENT
ICC < IMAX
YES
NO
REDUCE CHARGE CURRENT
LX2208 LX2208
NO
IBATYES
ITAPER DETERMINED BY RHCP.
NO
VBAT> VCV
YES
RETURN TO THE TOP OF THE CHART.
Copyright (c) 2007 Rev. 1.0, 2007-04-03
Microsemi
Analog Mixed Signal Group 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 5
LX2208
TM (R)
2 Amp Three Level Lithium Ion Battery Charger
PRODUCTION DATA SHEET
APPLICATION CIRCUITS
Status 2..4k Adapter or USB Power Pin 10k Grounded Pin in USB cable. Leave open in Adapter Cable. Shutdown USB Hi/Low 1k 0.47u IN CMP H/L SD 20% HCP LCP 3.57k Current Programming 15.8k GND Battery DC OK 2.4k STAT 2.4k Full Power On 121k 24.9k + Battery Temperature Lockout Sensing Charging
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LX2208
TMP BAT
Figure 1 - Typical Application - 2A adapter charge current and 500mA or 100mA maximum USB charge currents. A grounded spare pin in the USB power cable can be used to sense when the 500mA USB current power source is being used. This application also uses three LED indicators for Power attached, Battery Charging and Battery Full. This configuration also implements circuitry to lockout battery charging if the battery is less than 0C or greater than 60C.
LX2208 LX2208
Copyright (c) 2007 Rev. 1.0, 2007-04-03
Microsemi
Analog Mixed Signal Group 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 6
LX2208
TM (R)
2 Amp Three Level Lithium Ion Battery Charger
PRODUCTION DATA SHEET
THEORY OF OPERATION
GENERAL DESCRIPTION The LX2208 charges a single cell Lithium Ion or Lithium Polymer battery using two steps: a constant current mode followed by a constant voltage mode. The maximum charging current during the Constant Current Mode of the charging profile can be logically set (using H/ L pin) to two resistor-programmable levels. The resistor RHCP connected between HCP and GND pin sets the higher level current. The resistor RLCP connected between LCP and GND pin sets the lower level current. There is also a 20% logic input that selects either the full current set by the LCP resistor RLCP or 20% of that value. The charger will terminate constant voltage charging once the current drops below the taper current setting which is 10% of the high charge current setting (determined by HCP resistor RHCP value). CONDITIONING CURRENT CHARGE MODE A conditioning current is applied to batteries that are deeply discharged and have a terminal voltage less than 60% of the constant voltage level. The conditioning current is 5% of the HCP programmable constant current level. Once the battery terminal voltage exceeds the conditioning current threshold, the full constant current level is applied (unless charging current is limited by one of the other charger control loops). CHARGE TERMINATION MODE To increase system battery life and avoid float charging, the LX2208 disconnects the charger once the battery has been fully charged. The charge termination state occurs at the end of constant voltage mode. The termination current is set by the value of the resistor RHCP connected between HCP pin and GND. The STAT pin changes state when charging is completed. TOP OFF CHARGE MODE Once the charger has completed a charge cycle, if power remains applied, the LX2208 enters a Voltage Monitoring mode. In this mode, the LX2208 monitors the battery terminal voltage and applies a top off charge if the battery voltage drops below the top off threshold. ADAPTER OR USB SELECTION The LX2208 supports battery charging from a system that provides adapter power or USB power using the same external connector. Figure 1 shows one example of a system using a special USB adapter cable to determine whether the power source is USB or Wall Adapter. Similarly, if the system processor senses the absence of USB data, it can logically set the H/ L logic level high to allow a higher charge current to be used.
INPUT SUPPLY QUALIFICATION If the input supply is not high enough for the internal 4.2V reference to operate, charge termination will be prevented. This may be useful if supply is severely current limited. USB CHARGE MODE AND CURRENT LIMIT The LX2208 is fully compliant with, and supports, the USB specifications - the Low Power Peripheral (100mA) and High Power Peripherals (500mA). USB current levels can be set using the appropriate values of the LCP programming resistor RLCP. 20% logic input selects USB high/low charge current. When the SD pin is pulled high, the USB input enters Shut Down mode and will not present a load to the IN pin.
DC OK
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The IN input is monitored and DC OK is set to a logic low to report the presence of the power source with sufficient voltage to charge the battery. The DC OK threshold is the larger of the UVLO threshold or the battery voltage. PROTECTION FEATURES Conditioning Current Mode - If the battery terminal voltage is less than 2.7V, the battery charger will reduce the charge current to 5%. This also protects the appliance from overheating by trying to drive the full charging current into a short circuited battery. Under Voltage Lockout - The charge cycle will not start until the IN voltage rises above 3.1V. Hysteresis helps alleviate chattering on and off. Thermal Control Loop - If the power dissipation of the charger becomes excessive, the charge current will be linearly reduced to prevent the die temperature from getting above 140C. This does not cause the charge cycle to stop. Reverse Current Blocking - If IN input is grounded, current will not flow from the BAT pin through the charger. No external blocking diode is required on the input. Shut Down Mode - If the SD pin is asserted a logic high, the charger enters a shut down mode where a very low quiescent current prevents drain from the battery.
LX2208 LX2208
Copyright (c) 2007 Rev. 1.0, 2007-04-03
Microsemi
Analog Mixed Signal Group 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 7
LX2208
TM (R)
2 Amp Three Level Lithium Ion Battery Charger
PRODUCTION DATA SHEET
APPLICATION NOTE
Termination Current (in mA)
LAYOUT In the layout of the Printed Circuit Board (PCB) it is important to provide a low thermal impedance path from the thermal pad on the bottom of the LX2208 package to the ground plane of the circuit board to maximized heat dissipation. Generally this is accomplished by the use of multiple thermal vias. This insures the LX2208 stays cool and can provide the maximum charge current to minimize the time required to charge the battery. For latch-up prevention purpose, it is important to place 10F capacitors (X5R or X7R dielectric) close to the IN and BAT pins. With long input cables to the adapter or USB, it is best to use a sheathed cable or twisted wire cable which is typical of most applications. The CMP 0.47F capacitor and 1k resistor should be placed close to the CMP pin and IN pin; the CMP pin is located adjacent to the IN pin to facilitate this. CURRENT PROGRAMMING RESISTORS The LX2208 has two programming resistors to control the battery charging current during the constant current charging mode of the battery charging cycle. When the H/ L pin is high (selecting the High Current charging mode), the charge current is determined by the value of the HCP programming resistor RHCP. The maximum charge current is determined by the programming current at either the HCP or LCP programming pins (depending on the state of H/ L ); the range of each of these channels is identical. The programming current is the HCP or LCP pin voltage (typically 1.25V) divided by the value of the programming resistor. For example, the HCP current with a 7.15k resistor to GND is:
I HCP = 1.25 1.25 = = 175A R HCP 7.15k
Charge Current vs IHCP (or ILCP) 2000 1800 Charge Current (in mA) 1600 1400 1200 1000 800 600 400 200 0 0 50 100 150 200 250 300 350 IHCP (in uA)
Using the table above it can be seen that for a programming current value of 175A, the corresponding maximum charge current is 1A. The termination current determines the point at which the charge cycle is terminated and the battery is determined to be fully charged. The termination current is determined by the value of the HCP programming current as determined by the HCP programming resistor RHCP. For a value of IHCP = 175A (as was used in the previous example), the termination current from the chart below can be seen to be 100mA.
Termination Current vs IHCP 200 180 160 140 120 100 80 60 40 20 0 0 50 100 150 IHCP (in uA) 200 250 300 350
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The termination current is always roughly 10% of the maximum charge current set by the HCP resistor RHCP. Constant Charge Current (in mA) RHCP 43.3 169.28k 92 88.67k 460 15.80k 730 9.75k 1000 7.15k 2000 3.56k* * RHCP minimum value Termination Current (in mA) RHCP 4.33 169.28k 9.2 88.67k 46 15.80k 73 9.75k 100 7.15k 200 3.56k*
LX2208 LX2208
Copyright (c) 2007 Rev. 1.0, 2007-04-03
Microsemi
Analog Mixed Signal Group 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 8
LX2208
TM (R)
2 Amp Three Level Lithium Ion Battery Charger
PRODUCTION DATA SHEET
APPLICATION NOTE
BATTERY TEMPERATURE MONITOR The LX2208 has an input to monitor the battery temperature during battery charging; this method assumes the battery pack contains a thermistor expressly for this purpose. A typical Lithium Ion battery should only be charged within a temperature range of 0C to 60C. For this calculation, a Vishay NTHS0402N01N1003J Thermistor was used. This thermistor has the value of 327k at 0C, 100k at 25C and 24.9k at 60C. The thermistor must be biased with a Thevenin voltage source and series resistance to achieve the proper TMP thresholds. A fixed value resistor is added in series with the thermistor to prevent it from becoming too low impedance at high temperatures and causing the TMP input to default to off.
VTH RTH TMP RMIN RNTC
To finish the design it is necessary to create the Thevenin Voltage and resistance using a voltage divider from the input pin (IN). WWW .Microsemi .C OM
VIN R1 TMP
RMIN R2 RNTC
The values of R1 and R2 can be calculated as:
R1 =
R TH = 122k K
R2 =
R 1 x R TH = 14,800k R 1 - R TH
In this case, it is not necessary to use R2, because the value is so large it is insignificant. In this case, R1 = RTH. The final circuit for this example is:
VIN 121k TMP 24.9k RNTC
Using a value of RMIN that is equal to the thermistor temperature at 60C works well; therefore, for this example, set the value of RMIN to 24.9k. This has the effect of adding 24.9k to the thermistor resistance values so it becomes 352k at 0C, 125k at 25C and 49.8k at 60C. The equations for RTH and VTH are, using Cold Temperature Fault Threshold average of 74% and the Hot Temperature Fault Threshold average of 29% of VIN:
VTH 0.29 x 0.74 x (R T =0 C - R T =60 C ) = VIN (0.29 x R T =0 C ) - (0.74 x R T =60 C ) = K = 0.99
K R TH = - 1 x R T =0C = 121k 0.74
The TMP voltages with this circuit are:
TEMP (C) -20 0 25 60 80 RNTC 971k 327k 100k 24.9k 12.6k VTMP (%VIN) 89% 74% 51% 29% 24%
LX2208 LX2208
Where R at temperature is the sum of the thermistor plus RMIN.
At the trip point threshold, there may be chattering on and off of the charging current. However, as the temperature increases or decreases further from the trip point threshold, the chattering will stop.
Copyright (c) 2007 Rev. 1.0, 2007-04-03
Microsemi
Analog Mixed Signal Group 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 9
LX2208
TM (R)
2 Amp Three Level Lithium Ion Battery Charger
PRODUCTION DATA SHEET
APPLICATION NOTE
POWER STATUS INDICATORS The STAT pin is designed to source or sink current. LEDs can be configured to indicate charging or battery full. The battery full indicator can be connected to DC OK rather than GND to insure it is off when the input power is removed and the STAT pin and DC OK pin go to a high impedance state.
Conditions STAT
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Charge in Process Charge Completed Input Power Removed
Low High Hi Z
CHARGING PROFILE
CONDITIONING CURRENT
Conditioning Current vs IHCP 100
0.50
Battery Charging USB High Level
4.25 4.20 4.15 Battery V oltage Vbat 4.10 4.05 4.00 3.95 3.90 0.0 60.0 Time in minutes 120.0 Ibat
Conditioning Current (in m A)
0.45 0.40 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0.00 Battery Cuurent
80
60
40
20
0 0 50 100 150 200 250 300 350 IHCP (in uA)
LX2208 LX2208
Copyright (c) 2007 Rev. 1.0, 2007-04-03
Microsemi
Analog Mixed Signal Group 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 10
LX2208
TM (R)
2 Amp Three Level Lithium Ion Battery Charger
PRODUCTION DATA SHEET
PACKAGE DIMENSIONS
LD
12-Pin Plastic MLP Dual Exposed Pad WWW .Microsemi .C OM
D
D2
Pin 1 ID
K
e A
b A1 A3
Dim A A1 A3 D E D2 E2 e K L b
Note:
1.
MILLIMETERS MIN MAX 0.80 1.00 0.00 0.05 0.20 REF 3.00 BSC 3.00 BSC 1.87 2.12 1.06 1.31 0.45 BSC 0.20 MIN 0.30 0.50 0.15 0.25
INCHES MIN MAX 0.031 0.039 0.000 0.002 0.008 REF 0.118 BSC 0.118 BSC 0.074 0.083 0.042 0.052 0.018 BSC 0.008 MIN 0.012 0.020 0.006 0.010
Dimensions do not include mold flash or protrusions; these shall not exceed 0.155mm(.006") on any side. Lead dimension shall not include solder coverage.
L
E2
E
LX2208 LX2208
PRODUCTION DATA - Information contained in this document is proprietary to Microsemi and is current as of publication date. This document may not be modified in any way without the express written consent of Microsemi. Product processing does not necessarily include testing of all parameters. Microsemi reserves the right to change the configuration and performance of the product and to discontinue product at any time.
Copyright (c) 2007 Rev. 1.0, 2007-04-03
Microsemi
Analog Mixed Signal Group 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
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