AM9468

AM9468
Green
SINGLE PHASE FULL WAVE
DIRECT PWM MOTOR DRIVER
Description
Pin Assignments
NEW PRODUCT
The AM9468 is a high performance ultra low noise single phase
(single-coil) brushless direct current (BLDC) fan and motor driver. The
integrated full-bridge driver output stage uses a BTL linear driver
architecture to minimize audible switching noise and electromagnetic
interference (EMI) providing a low noise solution.
(Top View)
OUT1
1
16
OUT2
VDD
2
15
RF
REGH
3
14
GND
5VREG
4
13
PWM
VCONT
5
12
CPWM
RMI
6
11
HIN-
FG
7
10
HB
RD
8
9
HIN+
For system flexibility the motor speed can be controlled by either an
external PWM signal or by a DC voltage or from a thermistor network.
Based on the input signal, the AM9468 adjusts the output duty cycle.
To help protect the motor coil, the AM9468 provides Rotor Lock
Protection which shuts down the output drive if rotor lock is detected.
The device automatically re-starts when the rotor lock is removed. In
case of over voltage, the device shuts down the output drive and
enters standby mode to help prevent over voltage stress on the coil.
Over temperature shutdown provides thermal protection for the
device.
A Tachometer output is provided by open-drain Frequency Generator
(FG) Pin which allows external interface to monitor motor rotation or
speed. The FG output is the magnetic change frequency. Additionally,
a rotor lock detect output is provided by open-drain RD pin.
TSSOP-16
The AM9468 is available in power capable low profile TSSOP-16
package.
Applications
Features






Single-Phase Full Wave BLDC Fan/Motor Drive with BTL Output
(BTL Amplifier Gain = 49dB)
Low Noise Architecture
Wide Operating Voltage Range: 2.4V to 18V
PWM Speed Control with External PWM Input
DC Voltage Speed Control by Adjusting VCONT and RMI
Voltage
Hall Bias Output: VHB = 1.25V






Built-in Quick Start Circuit
Lock Protection with Automatic Restart
Frequency Generator (FG) Output
Rotor Lock Detection (RD) Output
Current Limit Circuit
RF Defines The Current Limit;
RF = 1Ω will Achieve 250mA Current Limit



Thermal Shut-Down (TSD) Circuit
Lead-Free Finish; RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Notes:
•
•
•
•
9V/ 12V / 15V BLDC Cooling Fans and Motors
CPU Cooling Fans for Notebooks and Desktop BLDC Fans
Instruments Cooling Fans
Medium Voltage/ Low Power BLDC Motors
1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. All applicable RoHS exemptions applied.
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
AM9468
Document number: DS38663 Rev. 1 - 2
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AM9468
Typical Applications Circuit (Notes 4 and 5 )
Motor Coil
1 OUT1
SYSTEM
POWER
2
D1
C1
NEW PRODUCT
Dz
OUT2
16
RF
15
VDD
3 REGH
RF
AM9468
GND
14
PWM
13
CPWM
12
HIN-
11
FG
HB
10
8 RD
HIN+
9
4 5VREG
5
VCONT
6 RMI
7
PWM signal for
speed control
CPWM
R1
Hall
Typical Applications Circuit for PWM Speed Control
Motor Coil
1 OUT1
SYSTEM
POWER
OUT2
16
RF
15
GND
14
PWM
13
CPWM
12
HIN-
11
FG
HB
10
8 RD
HIN+
9
2 VDD
D1
C1
Dz
3 REGH
AM9468
4 5VREG
5
VPWM
VCONT
6 RMI
7
RF
CPWM
R1
Hall
Typical Applications Circuit for VCONT/RMI Control
Notes:
4. C1 is for power stabilization and to strengthen the noise immunity and should be as close to the VDD pin as possible. The recommended value for C1 is
1µF typically. The value of capacitor can be optimized depending on the operating mode, motor voltage and the motor current. For PWM speed control
mode, with datasheet current capability, the recommended capacitor value is 1µF. The value of the C1 should be checked in the motor design and route
in its operating conditions if it is reduced or increased from the recommended value of 1µF.
5. Diode D1 is for the reverse connection protection. In addition to power stabilization and noise immunity, C1 also absorbs regenerative motor spikes.
Depending on the amount of regenerative voltage spike, value of C1 needs to be adjusted. The zener diode Dz is used to clamp the regenerative
voltage spike from the motor operation to safe level when reverse blocking diode D1 is used. If reverse blocking diodes is not used, the use of zener
clamp Dz depends on the supply voltage capability to effectively sink the regenerative energy and voltage spike. The value of C1 and the requirement
Dz needs to be verified on each application design.
AM9468
Document number: DS38663 Rev. 1 - 2
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AM9468
NEW PRODUCT
Pin Descriptions
Pin Number
Pin Name
1
OUT1
2
VDD
Description
Output drive - source & sink capable pin
Power supply input pin
3
REGH
High side regulator output voltage
4
5VREG
5V regulator output voltage
5
VCONT
Output duty control pin in DC signal speed control mode; Voltage in VCONT is compared with triangular wave
on CPWM for the output duty ratio.
6
RMI
Output minimum duty (minimum speed) control pin for CPWM
7
FG
Frequency Generator (FG) - The FG output is same as the magnetic change frequency
8
RG
Rotor lock detect open drain output
9
HIN+
10
HB
Hall device positive input pin
11
HIN-
12
CPWM
13
PWM
PWM signal input pin for PWM speed control mode. The PWM on this pin controls the output duty directly.
14
GND
Ground pin
15
RF
16
OUT2
Hall bias voltage
Hall device negative input pin
Capacitor connection pin for PWM oscillator and main clock
Current limit set pin; Connect a resistor between RF pin and GND, current limit is defined by 250mV/R F
Output drive - source & sink capable pin
Functional Block Diagram
OUT1
1
VDD
2
16
OUT2
15
RF
High Side
Regulator
14
GND
Low Side
Regulator
13
PWM
12
CPWM
11
HIN-
10
HB
- +
+ -
Bias
Generate
REGH
3
5VREG
4
Level Shift
5
RMI
6
FG
7
RD
8
Logical Control
Centre
OSC&
Clock
+ -
VCONT
HB
9
HIN+
TBD
AM9468
Document number: DS38663 Rev. 1 - 2
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AM9468
Absolute Maximum Ratings (Note 6) @TA = +25°C, unless otherwise specified.)
NEW PRODUCT
Symbol
VDD_MAX
Characteristics
Maximum Supply Voltage (Note 7)
VREVERSE
Reverse Supply Voltage on All Pins
VPWM_MAX
Maximum Voltage on Logic PWM Pin
IOUT(PEAK)
Maximum Output Current (Peak)
IOUT(CONT)
IRD
Rating
24
Unit
V
-0.3
V
7
V
1,200
mA
Maximum Continuous Current
500
mA
Maximum RD Output Current
5
mA
VRD
Maximum RD Voltage
24
V
IFG
Maximum FG Output Current
5
mA
VFG
Maximum FG Voltage
24
V
IHB
Maximum HB Output Current
10
mA
PD
Power Dissipation (Notes 8 & 9)
1,610
mW
TSTG
TJ
ESD HBM
Notes:
TSSOP-16
Storage Temperature Range
Maximum Junction Temperature
Human Body Model ESD Capability
o
-65 to +150
+150
C
C
4
kV
6. Stresses greater than the 'Absolute Maximum Ratings' specified above may cause permanent damage to the device. These are stress ratings only;
functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may
be affected by exposure to absolute maximum rating conditions for extended periods of time.
7. The absolute maximum VDD of 24V is a transient stress rating and is not meant as a functional operating condition. It is not recommended to operate
the device at the absolute maximum rated conditions for any period of time.
8. For thermal de-rating curves under different PCB sizes and layout conditions, see thermal performance section.
9. AM9468 exposed pad soldered to minimum recommended landing pads (see Package Outline Dimension section) on 3inch x 4.5inch four-layer
2oz.copper glass epoxy PCB (1.6mm thickness), calculated in accordance with JESD 51-7. See thermal performance section.
Recommended Operating Conditions
Symbol
VDD
VICM
VCONTIN
VRMIN
TA
Characteristic
Supply Voltage When The Device Is
Operating Normally With All Circuits Active
Hall Input Common-Mode Input Voltage
Range
VCONT Input Voltage Range
RMI Input Voltage Range
Operating Temperature Range
Conditions
Min
Max
Unit
Operating; All circuits active
2.4
18
V
–
0.3
V5VREG -1.5V
V
–
–
0.3
0.3
V
V
Operating
-40
V5VREG
V5VREG
+105
C
Electrical Characteristics (Note 10) (@TA = +25°C, VDD = 12V, unless otherwise specified.)
Symbol
IDD
VOV_TH
VOV_RLTH
Note:
Characteristics
Conditions
Min
Typ
Max
Unit
–
2.5
4.0
mA
Voltage increasing
19.5
20.5
21.5
V
Voltage decreasing
18.3
19.5
20.5
V
Supply Current
–
Over Voltage Protection Threshold for
Shutdown to Standby Mode
Over Voltage Release Threshold
10. Typical data is measured at TA = +25C, VDD = 12V. The maximum and minimum parameters values over operating temperature range are not tested in
production, they are guaranteed by design, characterization and process control.
AM9468
Document number: DS38663 Rev. 1 - 2
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AM9468
Electrical Characteristics (Note 11) (@TA = +25°C, VDD = 12V, unless otherwise specified.) (Cont.)
Symbol
VRF
VRGL
VRGH
Current Limit Voltage
5VREG Output Voltage
REGH Output Voltage
Conditions
IOUT =500mA (Source+Sink)
TA = -40°C to +105oC
TA = -40°C to +105oC
I5VREG = 5mA, TA = -40°C to +105oC
IREGH = 5mA
VHB
Hall Bias Output Voltage
IHB = 5mA, TA = -40°C to +105°C
1.20
1.25
1.30
V
Hall Input Bias Current
Hall Amplifier Output Offset Voltage
Hall Amplifier Voltage Gain
PWM Pin Input Low
PWM Pin Input High
PWM Pin Bias Current
Input PWM Smallest Width
External Input PWM Frequency Range
CPWM Charge Current
CPWM Discharge Current
CPWM Charge/Discharge Current Ratio
CPWM Oscillation High Level
CPWM Oscillation Low Level
CPWM Oscillation Amplitude
CPWM Oscillation frequency
VCONT Pin Input Bias Current
RMI Pin Input Bias Current
RD Output Low Voltage
RD Output Leakage Current
FG Output Low Voltage
FG Output Leakage Current
FG Comparator Hysteresis
Output ON Time in Lock Detection
Output OFF Time in Lock Mode
Output OFF/ON Ratio in Lock Detection
IC Junction Temperature Thermal
Shutdown Threshold
IC Junction Temperature Thermal
Shutdown Hysteresis
–
–
–
–
–
PWM=GND
–
–
TA = -40°C to +105°C
TA = -40°C to +105°C
RCP = ICPC / ICPD
TA = -40°C to +105°C
TA = -40°C to +105°C
TA = -40°C to +105°C
CPWM = 100pF
–
–
IRD = 3mA
VRD = 18V
IFG = 3mA
VFG = 18V
–
CPWM = 100pF
CPWM = 100pF
CPWM = 100pF, RT = tACT / tDET
–
-5
48
0
1.8
-17
2
8
16.4
16.4
0.9
3.35
0.95
2.3
–
–
–
–
–
–
–
–
–
–
–
–
–
52
–
–
-10
–
–
–
–
1
3.5
1.0
2.5
36
–
–
–
–
–
–
±5
0.5
4.5
9
0.5
5
–
1.2
5VREG
-6
–
100
19.6
19.6
1.11
3.65
1.05
2.7
–
0.3
0.3
0.3
1
0.3
1
–
–
–
–
µA
mV
dB
V
V
µA
µs
kHz
µA
µA
–
V
V
V
kHz
µA
µA
V
µA
V
µA
mV
s
s
s
–
–
+175
–
o
–
–
+25
–
o
NEW PRODUCT
VO
Output On Voltage, Source + Sink
IHIN
VINOFS
GH
VPWML
VPWMH
IPWM
tPWM_MIN
fPWM_RANGE
ICPC
ICPD
RCP
VCPH
VCPL
VCPA
fCPWM
ICONT
IRMI
VRD
IRDL
VFG
IFGL
ΔVFG
tLCK_DET_ON
tOFF
RT
TJ_SDN_TH
TJ_SDN_HYST
Note:
Characteristics
Min
Typ
Max
Unit
–
0.45
0.68
V
230
4.8
VDD - 4.6
250
5
VDD - 4.2
270
5.2
VDD – 3.9
mV
V
V
C
C
11. Typical data is measured at TA = +25C, VDD = 12V. The maximum and minimum parameters values over operating temperature range are not tested
in production, they are guaranteed by design, characterization and process control.
AM9468
Document number: DS38663 Rev. 1 - 2
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AM9468
Operating Characteristics
Standby and Start-up Timing
When PWM pin input signal is logic “L” level continuously for time longer than tSLP, the device enters standby mode as shown below. When PWM
pin signal is “H” level, the device turns active and operates normally. The PWM pin is also used to control the motor speed with external PWM
signal into this pin. The lowest frequency PWM signal is defined by tSLP, i.e. the PWM duty low time has to be smaller tSLP for motor speed control.
tSLP = 400µs typical
NEW PRODUCT
VDD
tSLP
tSLP
PWM
HB
OUT1/OUT2
Active
Active
Stand-by
Stand-by
Active
In Normal Operation/Rotation
HYS
HIN+-HIN-
HYS
PWM
OUT1
OUT2
FG
RD
Truth Table for Various Modes with PWM pin
HIN+
H
L
HINL
H
PWM
OUT1
OUT2
H
H
L
L
L
L
H
L
H
L
L
L
AM9468
Document number: DS38663 Rev. 1 - 2
FG
MODE
Drive
L
Regenerate
OFF
Drive
Regenerate
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AM9468
Operating Characteristics (Cont.)
VCONT/RMI Control
RMI
CPWM
VCONT
NEW PRODUCT
PWM
PWM Duty=100%
HYS
HIN+-HIN-
RMI Control
VCONT Control
PWM Duty=0%
HYS
OUT1
OUT2
FG
RD
Truth Table for Various Modes with VCONT/RMI PIN
HIN+
HIN-
H
L
L
H
Note:
PWM2
(Note 12)
H
OUT1
OUT2
H
L
L
L
L
H
L
H
L
L
L
FG
L
OFF
MODE
Drive
Regenerate
Drive
Regenerate
12. PWM2 is internal signal.
AM9468
Document number: DS38663 Rev. 1 - 2
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AM9468
Operating Characteristics (Cont.)
Motor Lock
Motor Lock
Motor Re-roration
NEW PRODUCT
HIN+- HIN-
OUT1
OUT2
FG
RD
tLCK_DET_ON
0.5s (typ)
Waiting for
FG Pulse
AM9468
Document number: DS38663 Rev. 1 - 2
tOFF
4.5s (typ)
Motor
Protection
FG Detection
Startup Support 50% Duty
Release
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AM9468
Application Note
HIN-Bias – Hall Bias Output
This is a 1.25V nominal voltage source to bias a differential un-buffered Hall element sensor. If a Hall element requires a lower voltage than the
HIN-Bias output, connect an appropriate value resistor between the HIN-Bias pin and the Hall element supply pin.
NEW PRODUCT
HIN+ and HIN- – Hall Inputs
The rotor position is detected by a Hall sensor, with the output of Hall sensor applied to the HIN+ and HIN- pins. This sensor can be either a 4
pin 'naked' Hall device or of the 3 pin buffered switching type. For a 4 pin device the differential Hall output signal is connected to the HIN+ and
HIN- pins. For a buffered Hall sensor the Hall device output is attached to the HIN+ pin, with a pull-up attached if needed, whilst the HIN- pin has
an external potential divider attached to hold the pin at half VREF. When HIN+ is high in relation to HIN-, OUT2 is the active drive.
PWM Pin - External PWM Signal Input for PWM Speed Control Mode
In PWM speed control mode, external PWM signal is applied at this PWM pin to control the motors speed. The duty ratio of the PWM signal input
to this pin controls the fan motor speed by varying the output PWM drive directly.
CPWM Pin
Internal motor control triangular wave is generated based on the capacitor on this pin. A capacitor of 100pF (CPWM = 100pF), will provide a
triangular wave of 36kHz (typ). The VCONT and RMI signals are compared with this triangular wave to generate the speed control PWM drive
and minimum speed control clamp points. The output PWM drive frequency is same as the triangular waveform frequency.
FG/RD Pin
FG is the Frequency Generator (tachometer) output and is a buffered signal from the Hall sensor. RD is the fan locked status detector. FG and
RD are open-drain outputs and will require external pull-up resistors. Typically a pull-up resistor of 10kΩ is recommended from FG and RD pins
to the supply voltage.
RF Pin
The current limiter is activated when the voltage between current detection resistor exceeds 0.25V between GND and RF. The current limiter is
activated at IO = 250mA when RF = 1Ω. The current limit is set with a RF resistor between RF pin and GND pin.
RMI Pin – Minimum Speed Setting Pin
RMI is the minimum speed setting pin. DC voltage on this pin sets minimum speed value; If you do not use RMI (minimum speed control), please
connect it to 5VREG.
VCONT Pin – DC Voltage Speed Control
VCONT is DC voltage inputs speed control pin. The voltage on the VCONT pin is compared with the triangular oscillation on the CPWM pin to
generate the output drive PWM signal. For the control method, refer to the timing chart.
.
REGH/5VREG Pin
Please insert capacitor value 1µF between 5VREG and GND for regulated output voltage stabilization; insert capacitor value 1µF value between
VDD and REGH for stable output voltage.
OUT1 and OUT2 pin
OUT1 and OUT2 pins provide H-bridge driver output for fan and motor coil connection.
VDD – Device Supply Voltage
This provides the supply for the device.
GND – Supply Return
This is the device supply ground return pin for control signal.
AM9468
Document number: DS38663 Rev. 1 - 2
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AM9468
Application Note (Cont.)
Speed Control
This device allows both DC voltage input and PWM signal input for speed control. Typically only one of the method is used to control the motor
speed. In DC voltage speed control mode, the voltage on the VCONT pin is compared with the CPWM triangular wave to generate internal PWM
signal to drive the output. In PWM speed control mode, the PWM signal on the PWM pin directly controls the output PWM drive.
The typical application circuits shows the two speed control methods.
NEW PRODUCT
1.
Speed Control by PWM Pin
Motor Coil
1 OUT1
SYSTEM
POWER
OUT2
16
RF
15
GND
14
PWM
13
CPWM
12
HIN-
11
FG
HB
10
8 RD
HIN+
9
OUT2
16
RF
15
GND
14
PWM
13
CPWM
12
HIN-
11
FG
HB
10
8 RD
HIN+
9
2
VDD
D1
C1
3 REGH
Dz
RF
AM9468
4 5VREG
5
VCONT
6 RMI
7
2.
PWM signal for
speed control
CPWM
R1
Hall
Speed Control by VCONT/RMI Pin
Motor Coil
1 OUT1
SYSTEM
POWER
2 VDD
D1
C1
Dz
3 REGH
AM9468
4 5VREG
5
VPWM
6 RMI
7
AM9468
Document number: DS38663 Rev. 1 - 2
VCONT
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RF
CPWM
R1
Hall
May 2016
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AM9468
Typical Operating Characteristics
Lock Detect tLCK_DET_ON and Shutdown tOFF Periods
Current Limits
VREF (V)
VREF
VREF (V)
NEW PRODUCT
Average Supply Current
Current Limit (250mV) vs. Temperature
AM9468
Document number: DS38663 Rev. 1 - 2
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AM9468
Typical Operating Characteristics (Cont.)
NEW PRODUCT
AM9468 Total Resistance
Total H-Bridge Path Resistance – Total RDS(ON) of High Side and Low Side Switches
AM9468
Document number: DS38663 Rev. 1 - 2
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AM9468
Thermal Performance
TSSOP-16 Power Dissipation De-rating Curve 1 (Note 13)
120
845
125
704
130
563
140
282
150
0
125
418
130
334
140
167
150
0
NEW PRODUCT
-40
25
0
50
60
70
80
85
90
95
100
105
110
TA (C)
PD (mW) 3,520 3,520 3,520 2,816 2,534 2,253 1,971 1,830 1,690 1,549 1,408 1,267 1,126
TSSOP-16 Thermal Derating Curve
Note 13:
TSSOP-16 is soldered on FR-4 substrate 4-layer 1.6mm thickness PCB board, calculated in accordance with JESD 51-7.
TSSOP-16 Power Dissipation De-rating Curve 2 (Note 14)
-40
25
0
50
60
70
80
85
90
TA (C)
PD (mW) 2,090 2,090 2,090 1,672 1,505 1,338 1,170 1,087 1,003
95
920
100
836
105
752
110
669
120
502
TSSOP-16 Thermal Derating Curve
Note 14:
TSSOP-16 is soldered to the circular PCB diameter 1.2” with the center circular cutout diameter of 0.53”. The Hall element space cut-out is 0.12”x0.08”. 2layer 2oz.copper FR-4 PCB (1.6mm thickness) with partial copper flood on the bottom layer.
AM9468
Document number: DS38663 Rev. 1 - 2
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AM9468
Thermal Performance
NEW PRODUCT
Circular PCB Dimensions
The circular PCB diameter is 1.2” with the centre circular cut-out diameter of 0.53”. The Hall element space cut-out is 0.12”x0.08”. 2-layer
2oz.copper FR-4 PCB (1.6mm thickness) with partial copper flood on the bottom layer.
Custom Circular PCB – Top View
Custom Circular PCB – Bottom View
Ordering Information
AM9468 - X - X
Product Name
Part Number
Package Code
Packaging
AM9468-T16-13
T16
TSSOP-16
Package
Packing
T16: TSSOP-16
13 : Tape & Reel
Quantity
13” Tape and Reel
Part Number Suffix
2500/Tape & Reel
-13
Marking Information
(1)
Package Type: TSSOP-16
( Top View )
9
16
Logo
Product Name
AM9468
YY WW X X
1
AM9468
Document number: DS38663 Rev. 1 - 2
YY : Year : 14,15,16~
WW : Week : 01~52; 52
represents 52 and 53 week
X X : Internal Code
8
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AM9468
Package Outline Dimensions
Please see http://www.diodes.com/package-outlines.html for the latest version.
(1)
Package Type: TSSOP-16
E/2
Y
NEW PRODUCT
E
E1
SEE DETAIL 'A'
X
PIN 1
x)
b
e

Ø0.760Depth0.050±0.02
A2
R1
D
R
C
A
L2
GAUGE
PLANE
L
SEATING PLANE
A1

L1
DETAIL 'A'
TSSOP-16
Dim
Min Max Typ
A
1.08
A1
0.05 0.15
A2
0.80 0.93
b
0.19 0.30
c
0.09 0.20
D
4.90 5.10
E
6.40 BSC
E1
4.30 4.50
e
0.65 BSC
L
0.45 0.75
L1
1.00 REF
L2
0.25 BSC
R / R1 0.09
X
1.350
Y
1.050
θ
0°
8°
θ1
5° 15°
θ2
0°
All Dimensions in mm
Suggested Pad Layout
Please see http://www.diodes.com/package-outlines.html for the latest version.
(1)
Package Type: TSSOP-16
X1
Dimensions
C
X
X1
Y
Y1
Y1
Y
Value
(in mm)
0.650
0.350
4.900
1.400
6.800
1
X
AM9468
Document number: DS38663 Rev. 1 - 2
C
15 of 16
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May 2016
© Diodes Incorporated
AM9468
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).
NEW PRODUCT
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
AM9468
Document number: DS38663 Rev. 1 - 2
16 of 16
www.diodes.com
May 2016
© Diodes Incorporated
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