Micrel MIC79110BML Simple 1.2a linear li-ion battery charger Datasheet

MIC79110
Micrel
MIC79110
Simple 1.2A Linear Li-Ion Battery Charger
General Description
Features
The Micrel MIC79110 is a simple and accurate lithium ion
battery charger. Featuring a built-in pass transistor, precision
programmable current limiting (±5%), and precision voltage
termination (±1.5% over temperature) all in a very small
package, the MIC79110 packs full functionality into a small
space.
Other features of the MIC79110 include two independent
end-of-charge indications, including a digital indication that is
programmable with a resistor-to-ground and an analog current output that is proportional to the output current, allowing
for monitoring of the actual charging current. Additional
features include very low dropout (500mV over the temperature range), thermal shutdown, and reverse polarity protection. In the event the input voltage to the charger is disconnected, the MIC79110 also provides minimal reverse-current
and reversed-battery protection.
Available in both fixed 4.2V and adjustable outputs, the
MIC79110 is offered in the leadless 3mm x 3mm MLF-10 with
an operating junction temperature range of –40˚C to +125˚C.
• Input voltage range: 2.5V to 16V
• High output voltage accuracy of ±0.75% over –5°C to
+60˚C and ±1.5% over temperature
• Current Limit ±5% accurate from –5°C ≤ Tj ≤ + 125°C
• Programmable End-of-Charge Flag
• Analog output proportional to output current
• Adjustable and Fixed 4.2V Output
• Low dropout voltage of 500mV at 700mA load, over
temperature
• 1.2A output current
• Excellent line and load regulation specifications
• Reverse current and reverse battery protection
• Thermal shutdown and current limit protection
• Tiny 3mm × 3mm MLF™-10 package
• Junction Temperature Range: –40°C to +125°C
Applications
•
•
•
•
•
•
•
•
•
•
Cellular phones
PDAs
Digital cameras
Camcorders
MP3 players
Notebook PCs
Portable Meters
Cradle chargers
Car chargers
Battery packs
Typical Application
10kΩ
MIC79110
VIN
VIN
SHUTDOWN
SD
ENABLE
DEOC
RSET
167Ω
4.2V
Li-Ion
Cell
SNS
REOC
4kΩ
4.2VBAT
BAT
ACHG
GND
1kΩ
MLF and MicroLeadFrame is a trademark of Amkor Technology.
Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
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MIC79110
Micrel
Ordering Information
Part Number
Voltage
Marking
Junction Temp. Range
MIC79110-4.2BML
4.2V
L942
–40°C to +125°C
10-lead 3mm × 3mm MLF™
Package
MIC79110BML
ADJ
L9AA
–40°C to +125°C
10-lead 3mm × 3mm MLF™
Pin Configuration
SD 1
10 GND
SD 1
10 GND
RSET 2
9 REOC
RSET 2
9 REOC
SNS 3
8 DEOC
ADJ 3
8 DEOC
BAT 4
7 ACHG
BAT 4
7 ACHG
VIN 5
6 VIN
VIN 5
6 VIN
3mm x 3mm Fixed Output
3mm x 3mm Adjustable Output
Pin Description
Pin Number
Pin Name
1
SD
2
RSET
Current limit: Sets constant current limit threshold via an external resistor to
ground. IRSET = (0.2V/RSET) × 1000
3
SNS
(Fixed voltage only): Sense output, connect directly to battery
3
ADJ
(Adjustable voltage only): Feedback input.
4
BAT
Battery Terminal. Connect to single-cell lithium-ion battery.
5, 6
VIN
Input supply pin.
7
ACHG
Analog Charge Indicator Output: Current source output equal to 1/1000th of
the output current.
8
DEOC
Digital End-of-Charge Output: N-Ch open drain output. Low indicates
charging, a current that is higher than the programmed current set by REOC
is charging the battery. When the current drops to less than the current set
by REOC, the output goes high impedance, indicating end-of-charge.
9
REOC
End-of-Charge Set: Sets end-of-charge current threshold via an external
resistor to ground. IEOC = (0.2V/REOC) × 1000
10
GND
Ground
MICxxxx/xxxx
Pin Function
Shutdown Input. Logic High = Off; Logic Low = On
X-2 DRAFT Rev m/03-A
Month 2003
MIC79110
Micrel
Absolute Maximum Ratings (1)
Operating Ratings (2)
Input Supply Voltage (VIN) .................................. 0V to 18V
Shutdown Input Voltage (V) ................................ 0V to 18V
Output Voltage (ADJ) .................................................... 10V
Power Dissipation .................................... Internally Limited
Junction Temperature .............................. –40°C to +125°C
Input Supply Voltage ........................................ 2.5V to 16V
Shutdown Input Voltage (V) .................................. 0V to 7V
Output Voltage (ADJ) ................................................... 9.6V
Junction Temperature Range (TJ) ........... –40°C to +125°C
θJA (MLF™-10) ........................................................ 60°C
θJC (MLF™-10) ......................................................... 2°C
Electrical Characteristics
TA = 25°C with VIN = VOUT + 1V; ILOAD = 100µA ; CBATT = 10µF; SD = 0V; RSET=1kΩ. Bold values indicate –40ºC < TJ < +125°C;
unless otherwise specified.
Parameter
Condition
Min
Output Voltage Accuracy
Variation from VOUT = 4.2V; TJ = –5°C to +60°C; ILoad = 50mA
ADJ Pin Voltage Accuracy
Max
Unit
–0.75
+0.75
%
–1.5
+1.5
%
0.6045
V
+0.1
%/V
0.5955
Typ
0.6
Line Regulation
VIN = Vout + 1V to 16V @ ILOAD = 50mA
Load Regulation
ILOAD = 0.1mA to 1A
0.3
ILOAD = 100mA, Rset = 167Ω
160
250
mV
ILOAD = 700mA, Rset = 167Ω
375
550
mV
ILOAD = 10mA, Rset = 167Ω
2
3
mA
ILOAD = 700mA, Rset = 167Ω
24
35
mA
VIN Pin Current
SD = VIN
120
300
µA
Shutdown Pin Current
SD = 5.2V, VBAT = 0
0.1
5
µA
Shutdown Input Threshold
Logic High, regulator off
Dropout
Voltage(3)
Ground Current
–0.1
1.1
V
Logic Low, regulator on
0.9
Shutdown Hysteresis
Current Limit Accuracy(4, 5)
%
60
VOUT = 0.9 × VNOM; IOUT = 1.2A,
RSET = 167Ω, TJ = –40°C to +85°C
VOUT = 0.9 × VNOM; IOUT = 0.1A,
RSET = 2kΩ
Current Limit Setpoint Range(5)
Maximum Current Limit
RSET shorted to ground, VBAT = 0.9 × VNOM
VBAT Reverse Current
VIN = High impedance or ground
V
mV
–5
+5
%
–20
+20
%
0.1
1.2
A
1.65
2.5
A
4.2
20
µA
1.25
Digital End–of–Charge (DEOC) Output
IEOC (6, 7)
REOC = 4kW Current Falling
35
30
50
65
70
mA
mA
IEOC (6, 7)
REOC = 4kW Current Rising
50
40
70
95
100
mA
mA
DEOC Logic–Low Voltage
IDEOC = 5mA, IBAT = 700mA
0.74
0.95
V
DEOC Leakage Current
Logic High = VIN = 16V
0.1
DEOC On Resistance
VIN = +5V
150
190
Ω
REOC Maximum Current Limit
REOC shorted to ground
0.5
1.0
2.0
mA
IBAT = 50mA
45
46
55
µA
IBAT = 1.2A, TJ = –40°C to +85°C
800
950
1150
µA
µA
Analog Charge Indicator (ACHG) Output
ISOURCE(8)
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
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3. Dropout Voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value measured at 1V differential.
For outputs below 2.5V, dropout voltage is the input-to-output voltage differential with the minimum input voltage 2.5V. Minimum input operating
voltage is 2.5V.
4. Vnom denotes the nominal output voltage.
5. IRSET = (0.2V/RSET) * 1000
6. Output Current IEOC when Digital End-of-Charge output goes high impedance. Currents greater than IEOC, the DEOC output is low, currents lower
than IEOC, DEOC is high impedance.
7. IEOC = (0.2V/REOC) * 1000
8. ISOURCE is the current output from ACHG pin. A resistor to ground from the ACHG pin will program a voltage that is proportional to the output current.
Block Diagram
VIN
BAT
Current
Limit Sense
SNS
+
DEOC
SD
RSET
Thermal
Shutdown
VREF
End of
Charge
Detect
Current
Limit Set
ACHG
REOC GND
MIC79110 Block Diagram
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July 2004
MIC79110
Micrel
4.5
250mA
-40
500mA
-30
-20
V
-10
1
10
100
FREQUENCY (kHz)
70
65
60
55
50
45
ISET = 1.2A
40
-40 -20 0 20 40 60 80 100
TEMPERATURE (ºC)
Ground Current
vs. Supply Voltage
3.5
2.5
2.0
1.5
1.0
0.5
35
30
0
1
2
3
4
SUPPLY VOLTAGE (V)
Dropout Voltage
vs. Temperature
1.5
1.0
0.5
20
15
10
5
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
1
2
3
4
SUPPLY VOLTAGE (V)
4.3
4.1
3.9
3.7 I
= 0A
BAT
3.5
-40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
50
40
30
20
10
10
Battery Voltage
vs. Temperature
0.5
0.4
0.3
0.2
0
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
Dropout Voltage
1.05
1.00
0.95
0.90
-40 -20 0 20 40 60 80 100 120
TEMPERATURE (°C)
VOUT=4.2V
700
600
500
400
300
200
100
0
5
1.10
200 400 600 800 1000 1200
BATTERY CURRENT (mA)
VOUT = 4.2V
0.7 I =0A
BAT
0.6
Shutdown Threshold
vs. Temperature
5
20
800
IBAT=1.2A
1
2
3
4
SUPPLY VOLTAGE (V)
30
0.1
Ground Current
vs. Supply Voltage
0
40
0.8
5.1
4.9
4.7
4.5
Battery Current vs.
Ground Current
50
0
0
5
Ground Current
vs. Temperature
5.5
5.3
1.15
IBAT=0A
IBAT = 1.2A
2.0
0
5
25
July 2004
2.5
60
IBAT=0A
3.0
0
GROUND CURRENT (mA)
75
IBAT = 0A
3.0
0
0
1000
GROUND CURRENT (mA)
GROUND CURRENT (mA)
= VOUT+1V
Ground Current vs.
Temperature
80
GROUND CURRENT (mA)
IN
VOUT = 4.2V
0
0.1
DROPOUT VOLTAGE (mV)
50mA
3.5
DROPOUT VOLTAGE (mV)
0mA
-50
4.0
0
4.5
BATTERY VOLTAGE (V)
-60
SHUTDOWN (V)
PSRR (dB)
-70
60
GROUND CURRENT (mA)
BATTERY VOLTAGE (V)
-80
Dropout
Characteristics
ACCURACY (%)
PSRR
-90
0.2 0.4 0.6 0.8
1
1.2
BATTERY CURRENT (A)
Battery Current
vs. Battery Voltage
4.0
3.5
3.0
2.5
2.0
1.5
1.0
R
SET
= 165kΩ
0.5
0
0
0.2 0.4 0.6 0.8 1 1.2 1.4
BATTERY CURRENT (A)
M9999-072004
MIC79110
Micrel
2.5
2.0
1.5
1.0
0.5
0
0
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
100 200 300 400 500 600
BATTERY CURRENT (mA)
VIN=0V
VRSET=0V
10
8
6
4
2
50
45
40
35
30
25
20
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600
500
400
300
200
100
04 3.5 3 2.5 2 1.5 1 0.5 0
REOC (kΩ)
Battery Current
505
15
10
5
0 -20 0 20 40 60 80 100 120
-40
TEMPERATURE (°C)
REVERSE BATTERY CURRENT (µA)
00 1 2 3 4 5 6 7 8 9 10
BATTERY VOLTAGE (V)
DEOC Threshold
vs. REOC
DEOC Hysteresis
HYSTERESIS (mV)
REVERSE CURRENT (µA)
12
1000
900
800
700
RSET (kΩ)
Reverse Current
vs. Battery Voltage
14
DEOC THRESHOLD (mA)
3.0
VIN = VOUT+1V
VOUT = 4.2V
1.6
BATTERY CURRENT (A)
3.5
1.8
0.50
= 2kΩ
VIN = VOUT+1V
VOUT = 4.2V
SET
0
0.05
0.10
R
4.0
BATTERY CURRENT (A)
BATTERY VOLTAGE (V)
4.5
Battery Current
vs. RSET
0.15
0.20
0.25
0.30
0.35
0.40
0.45
Battery Current
vs. Battery Voltage
504
503
502
501
500
RSET = 40Ω
499-5
5
15 25 35 45
TEMPERATURE (°C)
55
Reverse Battery Current
vs. Temperature
9
8
7
6
5
4
3
2
1
0 -20 0 20 40 60 80 100 120
-40
TEMPERATURE (°C)
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MIC79110
Micrel
Line Transient
Load Transient
Load Current
(500mA/div)
16V
VIN=3.6V
5V
VIN=3.6V
100µA
Output Voltage
(200mV/div)
TIME (20µs/div.)
TIME (100µs/div.)
Shutdown Transient
Shutdown
(2V/div)
Battery Switch
(1V/div)
VBAT
(1V/div)
IBAT
(500mA/div)
Battery Current Enable Transient
TIME (100µs/div.)
July 2004
VIN = 3.6V
1.2A
Output Voltage
(500mV/div)
Input Voltage
(5V/div)
VIN = 3.6V
TIME (200µs/div.)
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Constant Output Voltage/Current Charging
The MIC79110 features constant voltage and constant current output to correctly charge lithium-ion batteries. The
constant voltage is either 4.2V or adjustable. The constant
current is set by the Rset pin and is constant down to around
300mV. Since Rset can be set below 500mA, the minimum
output current is set at 500mA for output voltages below
100mV. This minimum voltage starts the charging process in
lithium-ion batteries. If the output current is too low, the
battery will not begin charge.
Application Information
M9999-072004
MIC79110 V-I Curve
Detailed Description
The MIC79110 forms a complete charger for 1-cell Lithiumion batteries. It includes precision voltage control (0.75%
over temperature) to optimize both cell performance and
cycle life. All are compatible with common 4.2V Lithium-ion
chemistries. Voltages other than 4.2V can be obtained with
the adjustable version. Other features include current limit,
end-of-charge flag and end-of-charge current limit using an
external resistor. The shutdown pin enables low quiescent
current when not charging.
Current Limit Mode
MIC79110 features an internal current limit that is set by the
Rset pin with a resistor-to-ground. The maximum current is
calculated by the following equation:
IRset = (0.2/Rset) × 1000
Using a 167Ω Rset resistor will achieve the maximum current
limit for the MIC79110 at 1.2 amperes.
End of Charge
REOC pin is connected to a resistor-to-ground. This resistor
is used to set the end of charge current for the lithium ion
battery as follows:
IREOC = (0.2/REOC) × 1000
Using a 4kΩ REOC resistor will set the end-of-charge
current at 50mA.
IReoc should be set at 10% of the battery’s rated current.
Digital End-of Charge Output
This pin is the output of an open drain. When tied high to the
supply using a resistor, the output will toggle high or low
depending on the output current of Ibat.
- Low state indicates that the Ibat current is higher
than the programmed current set by REOC.
- High state indicates that the Ibat current is lower
than the programmed current set by REOC. The
output goes high impedance indicating end-ofcharge.
Analog-End-Of-Charge Output
The ACHG pin provides a small current that is proportional to
the charge current. The ratio is set at 1/1000th of the output
current.
Shutdown
The SD pin serves as a logic input (active low) to enable the
charger.
Built-in hysteresis for the shutdown pin is 50mV over temperature.
Reverse Polarity Protection
In the event that VBAT > VIN and the shutdown pin is active
low, there is reverse battery current protection built in. The
current is limited to less than 10µA over temperature.
I Current
Standard V-I Curve
Standard V-I Curve
IMAX = (0.2/RSET)×1000
0.7V
I Current
500mA
MIC79110 V-I Curve
Lithium Ion Batteries
Lithium-ion batteries are charged in two stages to reach full
capacity. The first stage charges the battery with maximum
charge current until 90% of the battery cell’s voltage limit is
reached. The second stage tops off the charge with constant
voltage charge as the charge current slowly decreases. End
of charge is reached when the current is less than 3% of the
rated current. A third stage will occasionally top off with
charge with constant voltage charge if the battery voltage
drops below a certain threshold.
Voltage/Cell
Charge Current
Stage 1
Max. charge current
is applied until the
cell voltage limit is
reached
Stage 2
Max. cell voltage is reached
Charge current starts to drop
as full charge is approached
Stage 3
Occasional
topping charge
about 1 per
500h
CURRENT VOLTAGE (A/V)
1.25/5
....
1.00/4
0.75/3
0.50/2
Terminate
charge when
current < 3% of
rated current
0.25/1
....
1
2
3
TIME (hrs)
All lithium-ion batteries take approximately 3 hours to charge
with the second stage taking twice as long as the first stage.
Some chargers claim to be fast chargers by skipping the
second stage and just charges the battery until the cell
voltage is reached. This only charges the battery to 70%
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July 2004
MIC79110
Micrel
capacity. An increase in the charge current during stage 1
does not shorten the total charge time. It will only shorten the
time for stage 1 to complete and lengthen the time in stage 2.
The lithium-ion loses charge due to aging whether it is used
or not. Do not store the batteries at full charge and high heat
because it will accelerate the aging process. Try and store
with 40% charge and in a cool environment.
Lithium-Ion Safety Precautions
Every lithium ion battery pack should have a safety board
which monitors the charge and discharge of the pack and
prevents dangerous occurrences. The specifications of these
safety boards are dictated by the cell manufacturer and may
include the following:
• Reverse polarity protection
• Charge temperature must not be charged when
temperature is lower than 0°C or above 45°C.
• Charge current must not be too high, typically
below 0.7C
• Discharge current protection to prevent damage
due to short circuits.
• Protection circuitry for over voltage applied to the
battery terminals.
• Overcharge protection circuitry to stop charge
when the voltage per cell rises above 4.3V.
• Over discharge protection circuitry to stop discharge when the battery voltage falls below 2.3V
(varies with manufacturer).
• Thermal shutdown protection for the battery if the
ambient temperature is above 100°C.
Start Charging
Lithium-Ion
Battery
Standby Mode
Do not charge
1
Shutdown
Pin
0
Charging
Monitor Ibat
Deoc Flag is High
Stop Charge
Stop Charge
Current Limit
Irset
Deoc Flag is Low
Continue Charge
Ibat
Ieoc<Ibat<Irset
<4.3V
Stop Charge
End of Charge
Battery
Charging
<Ieoc
Battery Voltage
>4.3V
<125C
Die
Temperature
>125C
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MIC79110
Micrel
Simple Charger - External Trigger to Reset Charge
Cycle reset
External Trigger to Reset Charge Cycle Reset
1 - VIN steps up to a voltage greater than VBAT.
2 - SD held low by CSD until active high DEOC pulls
shutdown low.
3 - Deoc releases SD, resistor pull-up from SD pin'vo
VIN pulls VSD to VIN.
4 - An external signal applied to the gate of the
external NCH pulls SD pin-to-ground.
5 - Ibattery is near zero (2 to 4µA) because VIN is
below VBAT and the reverse shutoff circuit is turning the charge to the battery off.
6 - IBAT is decreased as VBAT approaches VBAT set
voltage. IBAT decreases below the DEOC threshold
and DEOC is released high allowing VSD to go high
7 - External NCH turns part on, after a small delay IBAT
turns on.
8 - Active high DEOC pin goes high because of
reverse shutoff. DEOC remains high until IBAT exceeds DEOC threshold, then goes low.
9 - IBAT decreases below (see #5) DEOC threshold.
10 - Active low DEOC is high because VIN is below
VBAT and reverse shutoff holds DEOC comparator
off. As VIN increases above VBAT, the reverse
voltage shutoff turns off, DEOC comparator becomes active. While IBAT is below DEOC threshold
DEOC active low goes low, when IBAT exceeds
DEOC threshold IBAT goes high.
11 - Legitimate Activation of active low DEOC until SD
shuts down part and DEOC AL (active low) goes
high.
Reset charge cycle.
SD
GND
RSET
REOC
200Ω
2kΩ
VSENSE DEOC
VBAT
ACHG
VIN
CDELAY
0.1µF
VIN
1MΩ
The VIN voltage steps up to a voltage greater than VBAT.
When Vin is below Vbat, the Ibat current is near zero and the
reverse shutoff circuit is turning the charge to the battery off.
The IBAT slowly increases as VIN rises above VBAT. DEOC is
pulled low when the Ibat current is above the Ieoc current set
by REOC. When the DEOC is low, the shutdown pin is also
forced low and helps discharge CSD. When the VBAT reaches
the set voltage, the Ibat begins to slowly drop. When the Ibat
is less than the IEOC threshold, the DEOC output goes high
impedance, indicating end-of-charge. When an external signal is applied to the gate, the external NCH pulls the SD and
DEOC pins to ground. This restarts the charging process.
Vin
VSD
Vbat set voltage
Vbat
SD threshold
1
2
2
3
Vgate
6
5
4
7
Ibattery
8
Active high DEOC pin
9
9
10
M9999-072004
Active low DEOC pin
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July 2004
MIC79110
Micrel
Auto Top Off Charger - Application Circuit
SD
RSET
Top-Off-Charger with Internal Reset - Application
Circuit
SD
GND
RSET
REOC
200 ohms
200 ohms
2kΩ
2kΩ
VSENSE DEOC
VSENSE DEOC
VBAT
R1
3M
R2
1M
VIN
GND
REOC
VBAT
ACHG
VIN
R1
3meg
R2
1meg
ACHG
VIN
VIN
VIN
LI-ion Battery
LI-ion Battery
VIN
This circuit is similar to the auto top off charger circuit
mentioned above except that the DEOC pin is externally
triggered to restart the charging cycle. It still uses the same
resistor divider to set the minimum battery voltage before the
lithium-ion needs to be recharged.
Auto-Shutdown Using Shutdown Pin
Lithium-Ion batteries will begin to lose their charge over time.
The MIC79110 can be configured to automatically recharge
the battery if the voltage drops below a certain voltage. This
minimum voltage is set by a resistor divider at the battery and
connected to the SD pin. When the battery voltage falls below
the minimum voltage, the SD pin is pulled low to start the
normal charging process.
Battery
charging
VIN
Self discharge
VOUT
VIN
VBAT
R1
SD
CIN
GND
R2
4.2 V
COUT
VBattery
VBat min
Deoc trip
IBattery
The shutdown pin on the MIC79110 can be used to automatically shutdown the battery charger when the input voltage
rises above a safe operating voltage. To keep the part from
heating up and entering thermal shutdown, we can connect
the shutdown pin to VIN using a resistor divider. Use the
following equation to setup the maximum VIN.
Vs
R1
VBat min=0.975V( R2 +1)
R2=1meg
VIN (MAX)
VBat min
1
R1=( 0.975 -1) R
2
VSD
=
R1
R2
+1
Vbat set (4.2V)
The MIC79110 can be connected to a wall wart with a rectified
DC voltage and protected from over voltages at the input.
Vbat
4
Vbat low set
by divider.
2
3
1
SD Voltage
1 - SD not held low by active high DEOC because
DEOC Comparator’s inputs do not common-mode
to ground. Divider holds SD low so part can start.
2 - SD held low by divider
3 - SD held low by active high DEOC
4 - Divider voltage above SD threshold and DEOC
open
5 - Divider voltage drops below SD threshold and
charging begins again.
July 2004
11
M9999-072004
MIC79110
Micrel
Package Information
0.85 +0.15
—0.05
1.60 +0.15
—0.15
3.00 BSC.
0.80 +0.15
—0.15
1.50 BSC.
0.01 +0.04
—0.01
0.48 typ.
PIN 1 ID
0.23 +0.07
—0.05
1
1
1.50 BSC.
+0.15
2 1.15 —0.15
2
5.0
3.00 BSC.
3
2.30 +0.15
—0.15
3
0.20 dia
0.50 BSC.
0.40 +0.15
—0.05
TOP
SEATING PLANE
BOTTOM
TERMINAL TIP
0.23 +0.07
—0.05
0.50 BSC.
0.01 +0.04
—0.01
0.50 BSC.
TERMINAL TIP
ODD TERMINAL SIDE
EVEN TERMINAL SIDE
MICREL, INC. 1849 FORTUNE DRIVE
TEL
+ 1 (408) 944-0800
FAX
SAN JOSE, CA 95131
+ 1 (408) 474-1000
WEB
USA
http://www.micrel.com
The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use.
Micrel reserves the right to change circuitry and specifications at any time without notification to the customer.
Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can
reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into
the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser’s
use or sale of Micrel Products for use in life support appliances, devices or systems is at Purchaser’s own risk and Purchaser agrees to fully indemnify
Micrel for any damages resulting from such use or sale.
© 2004 Micrel, Incorporated.
M9999-072004
12
July 2004
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