API9221

NOT RECOMMENDED FOR NEW DESIGN –
NO ALTERNATE PART
API9221
CAR/WALL OR USB SUPPLY INPUT LITHIUM BATTERY CHARGER
WITH OVP USB BYPASS AND 10mA LDO
Description
Pin Assignments
(Top View)
The API9221 has two supply inputs for highly integrated
portable applications, enabling charging from a USB host,
wall adapter, or car adapter.
The PPR pin indicates to a host controller that a safe and
valid supply is connected to either VUSB or VDC. The
higher charge current option from VDC will take priority if
both supplies are connected. The host controller can
control the state of charging via the enable pin EN . The
API9221 implements the constant current/constant voltage
(CC/CV) charge algorithm for Lithium based battery cells.
The connected cell will be charged to 4.2V with an
accuracy of 1% over the entire temperature range. The
termination current is programmable via an external
resistor, RIMIN.
The CHG pin indicates when the termination current is
reached, and is reset by EN , power off, or battery below
3.9V. The maximum charge current can be programmed
independently via the resistors RIUSB and RIVDC.
The API9221 comes with several protection features. To
prevent system damage, the VUSB pin uses over voltage
protection (OVP) at 5.4V, and the VDC OVP is at 6.9V.
Above these levels, the non-operating device is protected
against damage up to 28V. For control and system start-up
the API9221 has a current limited linear regulator.
To protect the chip against excessive power dissipation,
temperature monitoring is integrated, which folds back the
current to a safe level. As the temperature rises, this foldback begins at +125°C without completely interrupting
charging.
Applications
•
•
•
•
•
Handheld Consumer Devices
Cell Phones, PDAs, MP3 Players
Handheld Test Equipment
Digital Still Cameras
Multimedia Players
Notes:
VDC
VUSB
PPR
CHG
EN
IMIN
12 VDC_LDO
1
2
11 BAT
3
10 USB_BYP
4
Exposed Pad
9 IVDC
5
8 GND
6
7 IUSB
U-DFN4030-12
Features
•
•
•
•
•
•
•
•
•
•
•
•
•
•


Linear Lithium Ion / Lithium Polymer charging IC
Supplied from USB Host or Car/Wall Adapter
Overvoltage Protection USB: 5.4V, Wall:6.9V
Supply Inputs Safe up to 28V
Fast Charging with Maximum Current of 1.2A
Integrated Linear Regulator of 4.9V at 10mA with
Current Limit
Separate Resistor-Programmable Charging
Current for Wall and USB
Resistor Programmable End-Of-Charge
Current Limit on USB Bypass Path
Indicator Pins for Charging and Power Present
Enable Pin to Enable Host Control Charging
Reverse Current Protection
Thermal Protection
U-DFN4030-12: Available in “Green” Molding Compound
(No Br, Sb)
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
API9221
Document number: DS32204 Rev. 3 - 3
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API9221
Typical Application Circuit
DC Input
LDO Output
VDC_LDO
VDC
To Battery
USB Input
BAT
VUSB
OFF
ON
USB_BYP
API9221 USB_BYP
EN
PPR
To MCU
GND
CHG
IVDC
RIVDC
IUSB
RIUSB
RIMIN
IMIN
I/O_VDD I/O_VDD
Pin Descriptions
Name
Pin #
VDC
1
VUSB
2
PPR
3
CHG
4
EN
5
IMIN
6
IUSB
7
GND
8
IVDC
9
USB_BYP
10
BAT
11
VDC_LDO
12
Descriptions
The recommended input to this pin is 4.5V to 6.7V with a maximum safe value of
28V. If a sufficient voltage is detected on VDC, no charge current is taken from the
Input Pin from a
Wall AC/DC or Car VUSB pin. Internal OVP trips at 6.9V. The input current can be programmed with a
resistor at IVDC (pin 9). Decoupling with a 1μF ceramic capacitor is
Adapter
recommended.
The recommended input to this pin is 4.5V to 5.3V with a maximum safe value of
28V. Internal OVP trips at 5.4V. The supply current drawn at this pin is the sum
USB Host Device
of the charge current and the USB_BYP current. Decoupling with a 1μF ceramic
Input
capacitor is recommended. Special attention has to be given to the maximum
capacitance on the USB connection. Refer to the USB standard.
The power present pin can indicate to a host processor that an external source is
present and that current can be derived from the input. This is an open drain
Power Present
output pin, which goes LOW when a valid source voltage is connected to either
Signal Output,
VUSB or VDC. If connected to a processor I/O a pull up resistor should be
Active-Low
utilized.
Alternatively this pin can be used to drive an indicator LED up to 10mA.
Open drain pin is pulled LOW when charging is performed. Goes high when
charge current reaches IMIN. Remains high (including top-up), until the battery
Charge Indicator
Output, Active-Low voltage falls below 3.9V or the device is power cycled or EN is cycled. If
connected to a processor I/O a pull up resistor should be utilized.
Alternatively this pin can be used to drive an indicator LED up to 10mA.
Logic level input pin to control charging from an external processor. An internal
Charge Enable
600kΩ (nominally) pull-down resistor is provided, This pin normally requires a pull
Input, Active-Low
up resistor when connected to a processor I/O.
Current Setting for The end-of-charge current is set by a resistor connected from this pin to GND.
End-Of-Charge
This applies to charging from either VDC or VUSB.
State
The USB input maximum charging current is set by a resistor connected from this
Current Setting,
pin to GND. This current is also limited by a thermally controlled current fold-back
USB Power
circuit.
Ground
Ground return path.
VDC input maximum charging current is set by a resistor connected from this pin
Current Setting,
to GND. This current is also limited by a thermally controlled current fold-back
Wall or Car Adapter
circuit.
Provides an external load path from the USB input, with current limiting. Protected
USB Bypass Output
against reverse current.
Connect this pin to the positive terminal of the battery. This pin is also used to
Battery Connector monitor the charge state of the battery. It is not recommended to operate the part
without a battery connected to this pin. Protected against reverse current.
Low current linear regulator for system supply, available when a valid VDC input
LDO Output
supply is used. Stabilize with a 0.1μF to 1μF ceramic capacitor to ground.
Protected against reverse current.
API9221
Document number: DS32204 Rev. 3 - 3
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API9221
Functional Block Diagram
USB_BYP
VUSB
VDC_LDO
BAT
VDC
IVDC
THERMAL
CURRENT
FOLDBACK
PROTECTION
CHARGER REGULATOR
IMIN
1.25V
REFERENCE
IUSB
CC/CV
OVPVDC
4.2V
VRCH
CHARGE
CONTROL
OVPVUSB
VMIN
VOSVDC
VOSVUSB
EN
CHARGE
CONDITION
COMPARATORS
3.9V
2.6V
VDC
VUSB
REN
PPR
CHG
GND
API9221
Document number: DS32204 Rev. 3 - 3
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API9221
Absolute Maximum Ratings
Symbol
Parameter
Rating
Unit
-0.3 to 28V
V
-
VDC, VUSB to GND
-
EN , IMIN, IVDC, IUSB, BAT
-0.3 to 7V
V
-
USB_BYP, VDC_LDO
-0.3 to 7V
V
-
CHG , PPR
-0.3 to 7V
V
2
kV
200
V
Rating
Unit
ESD Susceptibility (Note 4)
HBM
Human Body Model
MM
Machine Model
Thermal Resistance (Note 5)
Symbol
Parameter
θJA
Junction to Ambient
41
θJC
Junction to Case
3.5
°C/W
Recommended Operating Conditions (Note 6)
Symbol
-
Rating
Unit
Ambient Temperature Range
-40 to +85
°C
VUSB
Supply Voltage (VUSB)
4.5 to 5.3
V
VDC
Supply Voltage (VDC)
4.5 to 6.7
V
IVDC_CHRG
Typical Adapter Charge Current
0.1 to 1.2
A
IUSB_CHRG
Typical USB Charge Current
46.5 to 465
mA
IUSB-BYP
Typical USB Bypass Current
0 to 200
mA
Typical LDO Current
0 to 10
mA
ILDO
Notes:
Parameter
4. 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.
5. Test condition for U-DFN4030-12: Measured on approximately 1” square of 1 oz copper.
6. The device function is not guaranteed outside of the recommended operating conditions.
API9221
Document number: DS32204 Rev. 3 - 3
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API9221
Electrical Characteristics
API9221 is tested at VDC = VUSB = 5V at an ambient temperature of +25°C unless otherwise noted.
Symbol
Parameter
Test Conditions
Min
Typ.
Max
Unit
CHARGER POWER-ON THRESHOLDS
VPOR
Rising VUSB/VDC Threshold
-
3.4
3.9
4.2
V
VPOF
Falling VUSB/VDC Threshold
-
3.2
3.7
4.0
V
INPUT VOLTAGE OFFSET
VOSHC
Rising VDC or VUSB, relative
to VBAT
VBAT = 4.0V, use CHG
pin to indicate the
comparator output
-
150
250
mV
VOSLC
Falling VDC or VUSB, relative
to VBAT
VBAT = 4.0V, use CHG
pin to indicate the
comparator output
20
80
-
mV
STANDBY CURRENT
ISTANDBY
BAT Pin Sink Current
EN = HIGH or both inputs
are floating
-
0.05
0.5
µA
IVDC
VDC Pin Supply Current
EN = HIGH, ILDO = 0
-
380
460
µA
IVUSB
VUSB Pin Supply Current
EN = HIGH, USB_BYP
disconnected
-
330
400
µA
IVDC_VUSB
VDC/VUSB Pin Supply Current
EN = LOW, ILDO = 0,
USB_BYP disconnected
-
0.63
1.1
mA
Load = 10mA
4.158
4.2
4.242
V
4.174
4.2
4.226
V
VOLTAGE REGULATION
VBATMAX
Final Output Voltage, BAT Pin
Load = 10mA
(TJ = +25°C)
RDS(ON)_VDC
VDC Linear ON-resistance
VBAT =3.8V, IVDC = 0.3A,
(TJ = +25°C)
-
550
-
mΩ
RDS(ON)_VUSB
VUSB Linear ON-resistance
VBAT = 3.8V, IUSB = 0.3A,
(TJ = +25°C)
-
550
-
mΩ
VIVDC
VDC Pin Output Voltage
VBAT = 3.8V
1.22
1.25
1.28
V
IVDC_CHRG
VDC Constant Current
450
550
600
mA
15
17
19
%
CHARGE CURRENT
RIVDC = 12.4kΩ,
VBAT = 2.7V to 3.8V
RIVDC = 12.4kΩ,
IVDC_TRKL
VDC Trickle Charge Current
API9221
Document number: DS32204 Rev. 3 - 3
VBAT = 2.2V, given as a %
of the IVDC_CHARGE
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API9221
Electrical Characteristics (Cont.)
API9221 is tested at VDC = VUSB = 5V at an ambient temperature of +25°C unless otherwise noted.
Symbol
Parameter
Test Conditions
Min
Typ.
VIUSB
IUSB Pin Output Voltage
VBAT = 3.8V
Max
Unit
1.22
1.25
1.28
V
180
232
260
mA
15
17
19
%
-
IUSB_CHRG
-
%
RMIN = 10kΩ
40
55
70
mA
-
2.5
2.6
2.7
V
Recharge Threshold Voltage
-
3.8
3.9
4.0
V
OVPVDC
VDC Overvoltage Level
-
6.7
6.9
7.1
V
HOVPVDC
VDC Overvoltage Hysteresis
-
-
240
340
mV
OVPVUSB
VUSB Overvoltage Level
-
5.3
5.4
5.55
V
HOVPVUSB
VUSB Overvoltage Hysteresis
-
-
150
200
mV
IOCP
Short Circuit (USB_BYP)
-
-
400
600
mA
USB_RDS(ON)
Resistance VUSB to USB_BYP
Measured at 200mA,
4.3V < VDC < 5.3V
-
1.16
2.0
Ω
VUSBDO
Dropout VUSB to USB_BYP
IOUT = 150mA
VVUSB > 4.3V
-
200
-
mV
IUSB_CHRG
VUSB Constant Current
RIUSB = 29.4kΩ,
VBAT = 2.7V to 3.8V
RIUSB = 29.4kΩ,
IUSB_TRKL
VUSB Trickle Charge Current
VBAT = 2.2V and if
IUSB_CHRG ≤ IVDC_TRKL,
then given as a % of the
IUSB_CHRG
If IUSB_CHRG ≤
IVDC_TRKL
DC and USB End-of-Charge
Threshold
PRECONDITIONING CHARGE THRESHOLD
IMIN
VMIN
Preconditioning Charge
Threshold Voltage
RECHARGE THRESHOLD
VRCH
PROTECTIONS
BYPASS FETS
API9221
Document number: DS32204 Rev. 3 - 3
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API9221
Electrical Characteristics (Cont.)
API9221 is tested at VDC = VUSB = 5V at an ambient temperature of +25°C unless otherwise noted.
Symbol
Parameter
Test Conditions
Min
Typ.
Max
Unit
INTERNAL TEMPERATURE MONITORING
TFOLD
Current Fold Back Threshold
-
-
+125
-
°C
LOGIC INPUT AND OUTPUT
VIH
EN Pin Logic Input HIGH
-
1.4
-
-
V
VIL
EN Pin Logic Input LOW
-
-
-
0.4
V
REN
EN Pin Internal Pull-down
Resistance
-
350
600
850
kΩ
Pin Current = 10mA
-
-
0.8
V
-
-
4.94
-
V
Initial Accuracy,
ILDO = 10mA; TJ = +25°C
-1
-
+1
%
-2.8
-
+2.8
%
-2.8
-
+2.8
%
-
20
50
mV
12
-
-
mA
VOL
CHG and PPR output voltage
LOW
LINEAR REGULATOR
VLDO
Output Voltage
Line regulation
VDC = VLDO + 0.5V to 6.5V
VREG
Voltage Regulation Accuracy
TJ = -40°C to +125°C
Load regulation
ILDO = 10µA to 10mA,
VDC = VLDO + 0.5V to 6.5V
TJ = -40°C to +125°C
VDO
Dropout (VDC to VLDO)
ILIMIT
Current Limit
API9221
Document number: DS32204 Rev. 3 - 3
ILDO = 10mA, VLDO = 4.9V,
VDC > VLDO+0.5V
For ILDO = 10mA,
VDC = 5.5V
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API9221
Functional Characteristics
Logic Description
A Logic State Table and diagrams of timing and charge profile are given at the end of this description.
The battery charge function is disabled when the EN input is pulled to logic HIGH. This normally requires an external pull-up
resistor connected to the system microcontroller I/O power supply. The API9221 has an internal resistor connected from this pin
to GND, typically 600kΩ. In many applications a suitable pull-up resistor value is 100kΩ. When EN is pulled LOW or left open
circuit, charging is enabled as described below.
There are two open-drain logic outputs, PPR and CHG . Each of these can use an external pull-up resistor to an appropriate
supply such as the microcontroller I/O supply, or can be left open circuit. A suitable value is 100kΩ. Alternatively these can each
be used to drive an indicator LED up to a maximum of 10mA.
The output PPR is LOW when a valid power supply voltage is present at the VDC input or at the VUSB input, independent of
EN . One of the two input voltages must be greater than the power-on threshold and less than the overvoltage protection
threshold.
The output CHG is LOW when the battery is charging, but only until the End-of-Charge (EOC) condition is reached. Together
with other conditions as described below, the voltage at the battery connection BAT is used to control the charging current. In the
EOC state, CHG is HIGH to indicate that the charging phase has completed and the battery voltage has reached 4.2V (± 1%).
In this state, the charger remains active and is able to supply load current and top up the battery as necessary. CHG may be reset as described below under Charge Conditions.
Auxiliary Outputs
The USB_BYP and VDC_LDO outputs are available independently of the EN input state. This allows a host controller to power
up initially.
USB Bypass, USB_BYP
The output USB_BYP provides power from the USB input when a valid power supply voltage is present at the VUSB input. It is
current limited to 400mA (nominally). It is therefore safely limited in current and voltage within the USB standard.
VDC Low dropout regulator VDC_LDO
This output provides a regulated 4.94V supply, up to 10mA, when a valid power supply voltage is present at the VDC input.
Charge Conditions
Before charging can begin, one of the two input voltages must also exceed the battery voltage enough to overcome the inputoutput comparator offset. When one of the supplies satisfies these conditions, and EN is LOW, charging begins regardless of
the state of the other supply. The valid input conditions are:
For VDC: VPOR < VDC < OVPVDC and VDC > VBAT +VOSHC
For VUSB: VPOR < VUSB < OVPVUSB and VUSB > VBAT + VOSHC
Where VPOR is the rising power-on threshold voltage, and VOSHC is the rising input offset voltage relative to VBAT. All these
threshold voltages have defined hysteresis.
When the charge current falls below IMIN, CHG goes HIGH (provided it has an external pull-up). This state is latched and is not
re-set until one of the following events occurs:
1. EN is driven HIGH and LOW again
2. The active supply is removed and re-applied
3. VBAT falls below the re-charge threshold of 3.9V (Nominally)
Note that the outputs, BAT, USB_BYP and VDC_LDO are reverse current protected. If an external voltage higher than the
supply voltage is connected to one of these outputs, that output will be disabled.
API9221
Document number: DS32204 Rev. 3 - 3
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API9221
Functional Characteristics (Cont.)
Charging from Adapter Power (VDC pin)
The battery can be charged from an AC powered wall adapter or in-car adapter at a current of up to 1.2A using this input pin.
The maximum charge current is set by an external resistor, R IVDC connected between the IVDC and GND pins. If VDC is greater
than the power-on threshold voltage (VPOR) and less than the over-voltage protection threshold (OVPVDC), the battery will begin
to charge at a rate dependent on the battery voltage.
When VDC input is as recommended, (4.5V to 6.7V), no charge current is drawn from the VUSB input as VDC takes
precedence. Input operation below 4.5V is also possible, but the charging rate may be affected.
The resistor RIVDC determines the charge current according to
IVDC 
6820 Amp
RIVDC
For example, a resistor value of 13kΩ sets a charge current of 0.525A. The recommended IVDC setting is 100mA to 1200mA.
Charging from Adapter Power (VDC pin) (Cont.)
The maximum charge current available may be otherwise limited by the car/wall adapter current limit, by thermal protection
within the API9221, or by the rDS(ON) of the FET in the VDC charging path. For example, if IVDC is set to 1A, there is a voltage
drop of 0.6V due the typical rDS(ON) of 600mΩ at room temperature. Therefore, the voltage at the VDC input must be at least
4.8V to charge the battery to 4.2V in the minimum time.
The VDC input is safe from damage up to 28V.
Charging from USB Power (VUSB pin)
The battery can be charged at a current of up to 0.5A from this pin. In this case the maximum available charge current is set by
an external resistor RIUSB connected between the IUSB and GND pins. If VUSB is greater than the power-on threshold voltage
(VPOR) and less than the over-voltage protection threshold (OVPVUSB), the battery will begin to charge at a rate dependent on
the battery voltage.
The resistor RIUSB resistor determines the charge current according to
IUSB 
6820
Amp
RIUSB
For example, a resistor value of 22kΩ sets a charge current of 0.31A.
The recommended IUSB setting is 46.5mA to 465mA.
The maximum charge current available may be otherwise limited by the external USB current limit, or by thermal protection
within the API9221.
The RDS(ON) of the FET in the USB charging path is typically 600mΩ at room temperature. At the IUSB limit of 465mA, there is a
voltage drop of nearly 0.3V. Therefore, the voltage at the VUSB input must be at least 4.5V to charge the battery to 4.2V in the
minimum time.
The VUSB input is safe from damage up to 28V.
Trickle Charge
When the battery voltage is below the Preconditioning Threshold, V MIN, the charger is in the Trickle Charge state and the charge
current is limited to 18% of the available charge current set by R IVDC or RIUSB. If the USB charge current is programmed to a
value less than the VDC trickle charge, then this value of the USB current is used in trickle mode (no derating).
When the battery voltage reaches VMIN, the charge current increases to 100% of the available charge current.
API9221
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API9221
Functional Characteristics (Cont.)
End-of-Charge Current
During charging, as the battery voltage approaches the regulated value of 4.2V, the charging current will begin to decrease.
Eventually the charging current settles to a value just low enough to maintain the regulated voltage. When the current becomes
less than the End-of-Charge threshold current, IMIN, the logic output CHG goes HIGH. The threshold current is set by an
external resistor connected between the IMIN and GND pins. This is independent of whether the VDC or VUSB input is valid.
The resistor at IMIN determines the EOC threshold current according to
IMIN 
550
Amp
RIMIN
For example, a resistor value of 10kΩ sets the EOC threshold current to 55mA.
Accuracy
When the constant voltage phase has been reached, the battery is charged to 4.2V ±1%. This is the maximum error over the
ambient temperature range from -40°C to +85°C.
Fault Summary and Protection
Overvoltage protection: If VDC is greater than OVPVDC (6.9V), the VDC charging path is turned off until VDC falls below OVP VDC
- HOVPVDC, where HOVPVDC is the OVP hysteresis. Similarly, if VUSB is greater than OVP VUSB (5.4V), the USB charging path
is turned off until VUSB falls below OVPVUSB – HOVPVUSB.
USB_BYP current limit: The USB_BYP load current is limited to 400mA (Nominally).
USB_BYP reverse blocking: If the voltage at USB_BYP is greater than VUSB, the USB bypass path is turned off.
BAT reverse blocking: If the battery voltage is greater than either VDC or VUSB, the relevant charge path is turned off.
VDC_LDO reverse blocking: If the voltage at VDC_LDO is greater than VDC, the linear regulator is turned off.
Thermal protection: When the junction temperature reaches 125°C, a current foldback circuit is activated. This effectively limits the
power dissipation to a safe level.
Power Supply Filtering and Stability
At each of the inputs VDC and VUSB, a local decoupling capacitor is required to be connected to GND. A minimum value of 1µF
is recommended, ceramic type X7R. (The USB standard sets an upper bound of capacitance somewhat larger than this.)
At the linear regulator output VDC_LDO, a local decoupling capacitor is required, connected to GND. A value of 1µF is
recommended, ceramic type X7R.
At the battery connection BAT, a local decoupling capacitor is required, connected to GND. A value of 1µF is recommended,
ceramic type X7R.
API9221
Document number: DS32204 Rev. 3 - 3
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API9221
Timing Diagram
6.9V OVPVDC
OVPVDC - HOVPVDC
PO
VDC
5.4V OVPVUSB
OVPVUSB - HOVPVUSB
PO
VUSB
PPR
EN
ENABLED
CHG
ILDO+ICHRG
IVDC
ILDO
IUSB_BYP+ICHRG
IUSB_BYP
IUSB
VBAT
USB_BYP
4.94V
VDC_LDO
0V
PO = Power-ON
ICHRG = Battery Charging Current
API9221
Document number: DS32204 Rev. 3 - 3
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API9221
Logic State Table
INPUTS
OUTPUTS
EN
VDC INPUT
VALID*
VUSB INPUT
VALID*
PPR
CHG
Charging State
VDC_LDO
USB_BYP
X
No
No
Hi Z
Hi Z
Off
Off
Off
HIGH
Yes
No
LOW
Hi Z
Off
On
Off
LOW
Yes
No
LOW
LOW
On (VDC)
On
Off
HIGH
No
Yes
LOW
Hi Z
Off
Off
On
LOW
No
Yes
LOW
LOW
On (VUSB)
Off
On
HIGH
Yes
Yes
LOW
Hi Z
Off
On
On
LOW
Yes
Yes
LOW
LOW
On (VDC)
On
On
* Valid VDC input: VPOR < VDC < OVPVDC
* Valid VUSB input: VPOR < VUSB < OVPVUSB
X = don’t care
When the charging state is On, the charge current also depends on the battery terminal voltage as described in the text.
Charging Profile Diagram
API9221
Document number: DS32204 Rev. 3 - 3
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API9221
Ordering Information
API9221 FC G - 13
Device
API9221FCG-13
Notes:
Package
Green
Packing
FC : U-DFN4030-12
G : Green
13 : Tape & Reel
13” Tape and Reel
Package
Code
Packaging
(Note 7)
Quantity
Part Number Suffix
FC
U-DFN4030-12
3000/Tape & Reel
-13
7. Pad layout as shown on Diodes Inc. suggested pad layout document, which can be found on our website at
http://www.diodes.com/package-outlines.html.
Marking Information
( Top View )
XX
Y WX
XX : BF : API9221
Y : Year : 0~9
W : Week : A~Z : 1~26 week;
a~z : 27~52 week;
z : represents 52 and 53
X : A~Z : Green
Part Number
Package
Identification Code
API9221FCG
U-DFN4030-12
BF
API9221
Document number: DS32204 Rev. 3 - 3
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API9221
Package Outline Dimensions (All Dimensions in mm)
Please see http://www.diodes.com/package-outlines.html for the latest version.
U-DFN4030-12
A1
A
A3
D
e
E
E2
D2
L (12x)
Z (4x)
U-DFN4030-12
Dim Min
Max Typ
A
0.55
0.65 0.60
A1
0
0.05 0.02
A3
0.15
b
0.20
0.30 0.25
D
3.95
4.05 4.00
D2
3.20
3.40 3.30
e
0.50
E
2.95
3.05 3.00
E2
1.60
1.80 1.70
L
0.30
0.40 0.35
Z
0.625
All Dimensions in mm
b (12x)
Suggested Pad Layout (All Dimensions in mm)
Please see http://www.diodes.com/package-outlines.html for the latest version.
U-DFN4030-12
X2
Dimensions
Y (12x)
X1
Y1
Y2
Pin1
C
API9221
Document number: DS32204 Rev. 3 - 3
C
X
X1
X2
Y
Y1
Y2
Value
(in mm)
0.500
0.300
2.800
3.350
0.600
1.750
3.400
X (12x)
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API9221
Taping Orientation (Note 8)
Note:
8. The taping orientation of the other package type can be found on our website at http://www.diodes.com/datasheets/ap02007.pdf
API9221
Document number: DS32204 Rev. 3 - 3
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API9221
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 Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document 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 patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the
final and determinative format released by Diodes Incorporated.
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 be 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 devices 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 © 2016, Diodes Incorporated
www.diodes.com
API9221
Document number: DS32204 Rev. 3 - 3
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© Diodes Incorporated
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