Diodes APM8601 User Manual

APM8601

DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERY

CHARGER WITH 28V OVP and PROGRAMMABLE CHARGE

TIMER

Description

The APM8601 is a dual input channel linear Li-Ion charger for
portable equipment that is optimized for small form-factor
applications.

The charge algorithm in the APM8601 covers all the charge
requirements for a single Li-Ion battery cell. Included is
pre-charging for deeply discharged cells, constant current /
constant voltage fast charging and a top-off feature to bring
the cell safely to a full-charge level.

The battery is constantly monitored for overvoltage, charge
time and cell temperature to ensure safe charging. A fault is
triggered once the charge time exceeds a value that is
programmable using a single capacitor and the temperature
measurement is achieved through a thermistor positioned
close to the battery cell.

The APM8601 automatically selects the USB or DC input,
depending on which is valid (DC has priority if both are vali d).
The charging current from the USB input is set to 100mA or
500mA based on the logic level of the USEL input.

NEW PRODUCT

The APM8601 is packaged in U-DFN3030-14 package with a
thermal pad.

Applications

• Handheld Consumer Devices

• Cell Phones, PDAs, MP3 Players

• Handheld Test Equipment

• Digital Still Cameras

• Multimedia players

Pin Assignments

Figure 1. Pin Out

Features

• Linear Lithium Ion / Lithium Polymer charging IC

• Supply input safe up to 28V

• Fast charging with maximum current of 1A

• 100mA/500mA USB charge current selected with USEL

• Resistor-programmable charging current

• Resistor programmable end-of-charge

• Capacitor programmable charge timer

• Three charge indicator pins for a status display

• Thermal protection

• DFN3030-14: Available in “Green” Molding Compound
(No Br, Sb)

• Lead Free Finish/ RoHS Compliant (Note 1)

Note 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions

applied. Please visit our website at

http://www.diodes.com/products/lead_free.html.

Typical Application Circuit

APM8601

Document number: DS35138 Rev. 1 - 2

Figure 2. Typical Application Circuit

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December 2010

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Pin Descriptions

APM8601

DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERY

CHARGER WITH 28V OVP and PROGRAMMABLE CHARGE

TIMER

NEW PRODUCT

Name Pin # Description

BAT 1, 7

SETI 2

THM 3 Thermistor Input

GND 4 Ground Ground connection.

CT 5 Charge Timing

USEL 6

EN

USB 9 USB Input USB supply input. Connect a bypass capacitor (1µF) from USB to GND.

10

POK

11

CHG

DC 12, 13 DC Input

FLT

EP Exposed Pad

14

Connection to the

Charge Current

8

Charge Status

Battery

programming

USB Charge

Select

Enable

(active-low)

Power OK

(active-low)

(active-low)

Fault Flag

(active-low)

The battery is charged via this pin and the BAT voltage is constantly monitored.
Connect a bypass capacitor between BAT and GND (2.2µF).

The maximum charge current is programmed using a resistor from SETI to GND.
This also determines the prequal current charging level and top-off threshold.

To monitor the battery temperature, connect a 10kΩ NTC thermistor. Place this
thermistor as close as possible to the battery. Connect THM to GND if
temperature measurement is not required.

Connecting a capacitor from CT to GND will set the time-outs for prequal, top-off
and fast-charge. Connecting CT direct to GND disables these timers.

Logic input to program the charge current in USB charging mode.

= 90mA when USEL = low, and I

I

BAT

The charger is enabled when this input is low. To start the charger connect
to GND. Drive this input high to disable the charger.

When a valid input source is connected, this open-drain output is pulled low.
Open-drain output that indicates the charging status. It is active only in the fast-

charge state and goes high-impedance when the charger is either disabled or in
prequal or top-off mode.

DC supply input. The recommended input voltage is between 4.32V and 7V. This
input is capable of withstanding up to 28V. Connect both DC pins together on the
PCB. It is recommended to connect a bypass capacitor (1µF) from DC to GND.

If the prequal or fast-charge timers expire and the charging threshold voltage is
not reached,
power or raise

For optimal thermal performance connect to copper on PCB (electrically this can
be GND).

(open-drain output) will go low. Remove the fault by cycling

FLT

.

EN

= 475mA when USEL = high.

BAT

EN

APM8601

Document number: DS35138 Rev. 1 - 2

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December 2010

© Diodes Incorporated

Functional Block Diagram

APM8601

DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERY

CHARGER WITH 28V OVP and PROGRAMMABLE CHARGE

TIMER

NEW PRODUCT

APM8601

Document number: DS35138 Rev. 1 - 2

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APM8601

DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERY

CHARGER WITH 28V OVP and PROGRAMMABLE CHARGE

Absolute Maximum Ratings

Symbol Parameter Rating Unit

ESD Susceptibility (Note 2)

HBM Human Body Model 2 kV

MM Machine Model 200 V

Note: 2. Semiconductor devices are ESD sensitive and may be damaged by exposure to ESD events. Suitable ESD precautions should be

taken when handling and transporting this device.

Thermal Resistance (Note 3)

Symbol Parameter Rating Unit

θ

Junction to Ambient 40 °C/W

JA

Note: 3. Test condition for DFN3030-10: Device mounted on FR-4 2-layer board, 2oz copper, with minimum recommended pad on top layer and 6 vias to
bottom layer 1.0”x1.5” ground plane.

NEW PRODUCT

DC, USB to GND -0.3 to 28V

,

BAT, CT, SETI, USEL, THM,

, EN to GND

POK

FLT

CHG

,

-0.3 to 6V

TIMER

V
V

Recommended Operating Conditions (Note 4)

Symbol Parameter Rating Unit

Ambient Temperature Range

I

Typical Charge Current

CHARGE

Note: 4. The device function is not guaranteed outside of the recommended operating conditions.

Input Supply Voltage

-40 to +85

4.15 to 7.00

0.1 to 1.0

°C

V
A

APM8601

Document number: DS35138 Rev. 1 - 2

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December 2010

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APM8601

DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERY

CHARGER WITH 28V OVP and PROGRAMMABLE CHARGE

Electrical Characteristics

APM8601 is tested at VDC = V
unless otherwise noted.

Symbol Parameter Test Conditions Min Typ. Max Unit
VDC/V
VDC/V

UVLO

USB
USB

Input Voltage Range 0 28 V
Input Operating Range (Note 5) 4.15 7.00 V
Input Undervoltage Lock Out

(Note 5)
OVLO Input Overvoltage Lock Out
I

Input Supply Current I

DC/USB

I

Shutdown Current

SHTDWN

R

Input to BAT On-Resistance Input = 3.7V, V

DS_ON

V

DROPOUT

V

BAT

Input to BAT dropout Voltage

Battery Voltage Regulation I

BAT_REG

Battery Fast-Charge Restart

RSTTH

Threshold

NEW PRODUCT

I

DC_CHG

I

USB_CHG

SS Soft-Start Time Ramp time to fast-charge 1.2 ms

V

PREQ_TH

I

LEAK

R

SETI

Note: 5. Guaranteed by testing of undervoltage- and overvoltage-threshold. To completely charge a battery cell, the input voltage must be greater than 4.32V.

DC Charge Current

V

= 0V

USB

USB Charge Current

V

DC

= 0V

BAT Prequel Threshold

BAT Leakage Current

Resistance Range for SETI

= 5V, V

USB

= 4V, VEN = 0V, R

BAT

Input rising, 500mV
hysteresis (typ.) V

Input rising, 200mV
hysteresis (typ.)

BAT

EN

Input falling, 200mV
hysteresis (typ.)

BAT

From BAT regulation
voltage

R

SETI

R

SETI

R

SETI

Prequal, R
V

BAT

V

USEL

V

USEL

Prequal, R
V

BAT

V

BAT

hysteresis (typ.)
V

DC

4.2V
Guaranteed by charging

current

= 2kΩ, CCT = 68nF, at an ambient temperature of +25°C

SETI

BAT

= 3.2V

3.85 4.0 4.15 V

7.2 7.5 7.8 V

= 0mA, R

= High, TA = 25ºC

= 10kΩ 750 1200 µA

THM

275 435 µA

= 3.6V 0.5 0.8 Ω

BAT

5 55 150 mV

= 0mA, TA = 25ºC 4.179 4.2 4.221 V

-230 -175 -110 mV

= 1.5kΩ 950 1000 1140
= 2.0kΩ 727 750 870
= 5.0kΩ 280 300 353

= 2kΩ,

SETI

= 2.5V

60 75 95

= 5V 450 475 500
= 0V 75 90 105

= 2kΩ,

SETI

= 2.5V

rising, 180mV

= V

= 0V, V

USB

BAT

=

60 75 95

2.9 3.0 3.1 V

0.001 5 µA

1.5 5.0 kΩ

TIMER

mA

mA

APM8601

Document number: DS35138 Rev. 1 - 2

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Electrical Characteristics (Continued)

NEW PRODUCT

APM8601 is tested at VDC = V
unless otherwise noted.

Symbol Parameter Test Conditions Min Typ. Max Unit

EN, USEL

Logic Input Thresholds

Logic Input Leakage Current

POK , CHG, FLT

Logic Output Voltage, Low

Logic Output Leakage Current,
High

I

TOPOFF

R

THM_Pullup

Internal Pullup Resistance 10 kΩ

/ Top-Off Threshold

CHG

THM Resistance, Hot R

R

THM

THM Resistance, Cold R
THM Resistance, Disabled R

CT

Charge Timer Accuracy CCT = 68nF -20 +20 %

accu

TL

TL

THFB

THFB

Prequal Time Limit

Prequal

TL

Charge Time Limit

CHG

Top-Off Time Limit

Top_off

Thermal Foldback Threshold

temp

Gain

Temperature

T hermal Foldback Gain

= 5V, V

USB

APM8601

DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERY

CHARGER WITH 28V OVP and PROGRAMMABLE CHARGE

TIMER

= 4V, VEN = 0V, R

BAT

Rising 1.6
Falling 0.4

V = V

EN

= 25ºC

T

A

V

DC

TA = +25°C
I

BAT

battery is
charged

THM

THM

THM

From entering prequal to
going low, V

From entering fast-charge to

FLT

4.2V
From CHG going high to

charger disabled
Junction temperature beyond

which the charge current is
reduced, T

Reduction of I
in T

1.5kΩ

USEL

= V

falling,

falling, 420Ω hyst. (typ.) 3.72 3.94 4.13 kΩ
rising, 2.7kΩ hyst. (typ.) 26.7 28.3 29.7 kΩ

falling, 230Ω hyst. (typ.) 260 315 370 Ω

going low, 3V < V

(using VDC), R

J

= 2kΩ, CCT = 68nF, at an ambient temperature of +25°C

SETI

= 0 to 5.5V,

1mAIII

===

FLTCHGPOK

===

FLTCHGPOK

= 0V

USB

R
R
R

< 3V

BAT

5.5VVVV

= 1.5kΩ 75

SETI

= 2.0kΩ 37.5 56.25 75

SETI

= 5.0kΩ 22.5

SETI

FLT

<

BAT

0.001 1 µA

12 100 mV

0.001 1 µA

34.8 min

334 min

34.8 min

+100 ºC

rising

J

for increase

BAT

SETI

=

5 %/ºC

V

mA

APM8601

Document number: DS35138 Rev. 1 - 2

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APM8601

A

A

A

A

A

A

A

A

A

DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERY

CHARGER WITH 28V OVP and PROGRAMMABLE CHARGE

TIMER

Functional Description

APM8601 is a linear Li-Ion battery charger device for single-cell applications. It has dual po wer inputs (DC and USB) and the
charge currents can be programmed with the R
features, such as charge timers, battery temperature monitoring and internal thermal limiting.

Functional State Diagram

resistor and/or the USEL pin. The device also incorporates several safety

SETI

NEW PRODUCT

EN = HIGH

ANY STATE

OR V
OR V
OR V

< V

IN

< 4.0V

IN

> 7.5V

IN

THM

POK 0 FLT 1

CHG 1 I

Timer Hold

BAT

0A

THM

POK 0 FLT 1

CHG 0 I

Timer Hold

BAT

0A

BAT

R
OR (R

ND R

(R

ND R

OR R

R
OR (R

ND R

(R

ND R

OR R

< 315Ω

THM

THM

< 28.3kΩ)

THM

THM

< 3.94kΩ)

THM

> 28.3kΩ

THM

< 315Ω

THM

THM

< 28.3kΩ)

THM

THM

< 3.94kΩ)

THM

> 28.3kΩ

THM

> 3.94kΩ

> 315Ω

> 3.94kΩ

> 315Ω

I

> 172.5 / R

BAT

Reset Timer

DISABLE

POK 1 FLT 1 CHG 1

I

0A

BAT

EN = LOW

ND VIN > V
ND VIN > 4.0V
ND VIN < 7.5V

PREQUAL

POK 0 FLT 1 CHG 1

I

150 / R

BAT

V

< 2.82V

BAT

Reset Timer

SETI

V

> 3V

BAT

Reset Timer

CHARGE

POK 0 FLT 1 CHG 0
I

(USB) USEL Setting

BAT

I

(DC) 1500 / R

BAT

SETI

I

BAT

SETI

< 112.5 / R

Reset Timer

BAT

SETI

V

< 3V

BAT

ND Time out

FAULT

POK 0 FLT 0
CHG 1 I

BAT

I

> 112.5 / R

BAT

SETI

ND Time out

0A

V

TOP-OFF

BAT

< 4.05V

Reset Timer

POK 0 FLT 1 CHG 1

Time out

DONE

POK 0 FLT 1 CHG 1

I

0A

BAT

APM8601

Document number: DS35138 Rev. 1 - 2

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APM8601

°

DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERY

CHARGER WITH 28V OVP and PROGRAMMABLE CHARGE

Functional Description (continued)

INPUTS
DC Pins 12 and 13 are the DC input. This input will allow charging from input voltages bet ween 4.15V and 7V, and can

withstand up to 28V without device damage although charging is disabled above 7.5V (typ.).

USB Pin 9 is the USB power input. This input will charge with input voltages from 4.15V to 7V. The charging curre nt

drawn from USB is selected using the USEL pin, either at 95mA (1 USB power allocation unit) or 475mA (5 USB power
allocation units, High Power). Note that R
affect the Prequal current when charging from USB. This pin will als o withstand up to 28V, but charging is disabled above

7.5V (typ.).
If both DC and USB are connected and valid, power will be drawn from DC with charge current set by R

USB and USEL will be ignored.

GND System ground connection.
EN Pin 8 is the enable pin of the device. W hen pulled low the device will operate normally. When high, the device will

remain in the disabled state. For auto-starting, connect pin 8 directly to GND.

NEW PRODUCT

SETI Pin 2 allows the charge currents to be programmed.

The charge curr ent setting also changes the currents in prequa l and top-off modes (being 10% and 7.5 % of I
respectively):

IPREQUAL =

This pin can also be used to monitor the battery charging current:

THM The thermistor connection is on pin 3. This allows the battery temperature to be monitored using a 10k NTC

thermistor, which should be placed as close as possible to the battery cell. If no thermistor is use d then this input should be
connected directly to ground. The charger will operate when there is less than 315Ω on this input (i.e., no thermistor
connected); will be disabled when there is between 315Ω and 3.94kΩ; enabled when between 3.94kΩ and 28.3kΩ; and
disabled above 28.3kΩ.

THM

Enabled

Enabled

0 315Ω 3.94k 28.3k R

Disabled

has no effect on USB charging currents in the Charge state, but R

SETI

RSETI =

150

RSETI

ICHARGE×=

1500

ICHARGE

Disabled

RSETI

112.5

ITOPOFF =

1000VSETI

Beta

3000 25.1 10 4.6 55.1 ‐ 3.2
3250 27.1 10 4.3 52.6 ‐ 1.3
3500 29.3 10 4 50. 5 0.5
3750 31.7 10 3.8 48.6 2. 0

RSETI

ResistanceinkΩat Typi calin
0°C 25°C 50°C Hottrip ColdTrip

TIMER

does

SETI

SETI

CHARGE

CThermistor

.

APM8601

Document number: DS35138 Rev. 1 - 2

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APM8601

DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERY

CHARGER WITH 28V OVP and PROGRAMMABLE CHARGE

Functional Description (continued)

USEL Pin 6 allows the selection of the USB charging curre nt. When lo w, I

unit) and when High I
input. This pin does not affect the device operation when power is being drawn from DC.

is limited to 475mA (5 USB power allocation units, High Power), when drawing power from the USB

BAT

CT The Charge Timer input on pin 5 allows selection of how long the system timers for Prequal, Charge and Top-off

states last. They are set by selecting the value of capacitor, C

The charge timer will hold its current value if the charging was stopped vi a the thermistor and continue when the battery is in
a valid temperature range for charging.

:

CT

⎛

min334TCHARGE

×=

⎜
⎝

CCT

OUTPUTS
BAT Pins 1 and 7 are the current-controlled charg ing output s for the batt ery cell. They should be co nnected t ogether and

to the positive terminal of the battery. The chip monitors the voltage on these pins. There should be a 2.2µF capacitor

NEW PRODUCT

connected from BAT to GND.

POK The POK f lag on pi n 10 is pu l led l o w when a valid power input is available on either DC or USB inputs. It will go high

when no valid power is available and the device will enter the Disable state.

CHG The CHG flag at pin 11 is pulled lo w when the device is in the Charge state. It will be h igh in Prequal and Top-off

states. If the thermistor trips the circuit into the THM state (from Prequal or Charge states),

FLT T he FLT flag on pin 14 in dicates a battery fault , as determined b y a time-out in eith er the Prequal or Charg e states.

If the battery voltage does not reach 3V af ter the prequal timer (default 34.8mins), or does not reduce char ging current to

7.5% after the charge timer (default 334mins), this indicates that the batt ery has failed or i s failing a nd this will trigger t he FLT
flag. This flag will not automatically reset, and can only be cleared by cycling the power input or the EN pin.

is limited to 95mA (one USB power allocation

BAT

⎞
⎟

nF68

⎠

CCT

⎞

⎛

min34.8TTOPOFFTPREQUAL

×==

⎟

⎜

nF68

⎠

⎝

CHG

will hold its previous value.

TIMER

APM8601

Document number: DS35138 Rev. 1 - 2

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© Diodes Incorporated

DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERY

CHARGER WITH 28V OVP and PROGRAMMABLE CHARGE

Functional Description (continued)

EN

CHG

V

BAT

0V

I

CHARGE

1500/R

3V

SETI

APM8601

TIMER

4.2V

NEW PRODUCT

I

BAT

DISABLE

I

PREQUAL

150/R

0A

PREQUAL

SETI

CHARGE

I

TOPOFF

112.5/R

SETI

CHARGING PROCESS DESCRIPTION

The charging process is as follows, working through the state dia gram.
The device will begin in the

the valid range (4.15V – 7V), and the device is enabled then it will enter the
of a severely discharged battery. If the battery is alread y pa rtiall y charged then t he condit ion to move into t he
met. If it is not then the slow charge will increase the bat tery voltag e until it can e nter the
not rise sufficiently before the charge timer runs out (set using the capacitor on the CT pin) then the device will go into the

Fault state, indicating that the battery cell may be damaged or has failed and is not t aking charge. In the Prequal state the

battery temperature can be monitored with a 10k NT C thermistor connected to the THM pin, and if the batter y temperature
goes out of range (above ~50°C or belo w ~0°C, depending on thermistor choice) then charging will be suspended with the
device going into the

Once the battery has charged to a level of 3V, the device enters t he
its normal voltage range, with 10 times the current used in the
see the functional description of the SETI pin. Again, the batt ery temperature is monitored and c harging will be s uspended if
the temperature goes out of range. The
charge current. The device will then enter the
current for the time defined by the C
current. If the battery voltage falls below 4.05 V then the device will automatically return to the

Disable state as the input power supply ramps from 0V. Once the input power supply has got into

Prequal state. This state allows for slow charging

THM state.

Charge state, allowing faster charging of the batte ry in

Prequal state. For information on setting the charge currents,

Charge state will last until the current drawn by the batt ery drops to 7.5% of the ful l

Top-Off state, maintaining battery voltage and providing top-off charging

value. Once that timer completes, the device will enter the Done state, with zero bat t er y

T

TOP-OFF

DONE

t

Charge state is

Charge state, or if the voltage does

Charge state.

APM8601

Document number: DS35138 Rev. 1 - 2

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© Diodes Incorporated

Ordering Information

APM8601

DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERY

CHARGER WITH 28V OVP and PROGRAMMABLE CHARGE

TIMER

APM8601 FB - 7

Package

FB :U-DFN3030-14

Device

APM8601FB-7 FB U-DFN3030-14 3000/Tape & Reel -7

Note: 6. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.

Package

Code

Packaging

(Note 6)

Packing

7 : Tape & Reel

7” Tape and Reel

Quantity Part Number Suffix

Marking Information

NEW PRODUCT

Part Number Package Identification Code

APM8601FB-7 U-DFN3030-14 P4

( Top View )

XX
Y

W

X

: P4 : APM8601

XX

Y

: Year : 0~9
: Week : A~Z : 1~26 week;

W

a~z : 27~52 week;

z : represents 52 and 53

: A~Z : Internal Code

X

APM8601

Document number: DS35138 Rev. 1 - 2

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DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERY

CHARGER WITH 28V OVP and PROGRAMMABLE CHARGE

Package Outline Dimensions (All Dimensions in mm)

U-DFN3030-14

TOP MARK

APM8601

TIMER

NEW PRODUCT

2X-

0.10 C

0.08 C

0.25

0.57/0.63

B

2.95/3.05

B

0/0.05

2X-

1.6/1.8

0.40Typ.

A

Side View

0.25

(Pin #1 ID)

C

0

.

Bottom View

2.95/3.05

2.2/2.4

3

C

L

0.15/0.25

C

A

C

L

0.15

Seating Plane

0.30/0.40

0.10

C

AB

Top View

14x-0.25

14x-0.50

1.80

(Pin #1 ID)

Land Pattern Recommendation

C

L

2.40

(Unit:mm)

0.40Typ

C

L

2.65

APM8601

Document number: DS35138 Rev. 1 - 2

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Taping Orientation (Note 7)

APM8601

DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERY

CHARGER WITH 28V OVP and PROGRAMMABLE CHARGE

TIMER

NEW PRODUCT

Note: 7. The taping orientation of the other package type can be found on our website at http://www.diodes.com/datasheets/ap02007.pdf

APM8601

Document number: DS35138 Rev. 1 - 2

13 of 14

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© Diodes Incorporated

APM8601

DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERY

CHARGER WITH 28V OVP and PROGRAMMABLE CHARGE

TIMER

NEW PRODUCT

IMPORTANT NOTICE

DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS
DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).

Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other
changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability
arising out of the application or use of this document or any product described herein; neither does Diodes In corporated convey any
license under its patent or trademark rights, nor the rights of others. Any Customer or user of this documen t or products described
herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies
whose products are represented on Diodes Incorporated website, harmless against all damages.

Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized
sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall
indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees
arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.

Products described herein may be covered by one or more United States, international or foreign p atents pending. Product names
and markings noted herein may also be covered by one or more United States, international or foreign trademarks.

LIFE SUPPORT

Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without
the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:

A. Life support devices or systems are devices or systems which:

1. are intended to implant into the body, or

2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided
in the labeling can be reasonably expected to result in significant injury to the user.

B. A critical component is any component in a life support device or system whose failure to perform can b e reasonably expected

to cause the failure of the life support device or to affect its safety or effectiveness.

Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support dev ices or
systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements
concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems,
notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated. Further,
Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes
Incorporated products in such safety-critical, life support devices or systems.

Copyright © 2010, Diodes Incorporated

www.diodes.com

APM8601

Document number: DS35138 Rev. 1 - 2

14 of 14

www.diodes.com

December 2010

© Diodes Incorporated