ZXBM2004N14TC - Diodes Incorporated

ZXBM2004

TWO PHASE VARIABLE SPEED

MOTOR CONTROL PRE-DRIVER

ZXBM2004

Document number: DS33433 Rev. 5 - 2 1 of 19

www.diodes.com February 2012

NEW PRODUCT

Description

The ZXBM2004 is a 2-phase, Brushless Direct Current (BLDC)

motor control pre-driver with variable PWM speed control

suitable for fan and blower motors.

For system flexibility, motor speed can be controlled by

changing SPD pin voltag e which can be eith er from Thermistor

network, external voltage or PWM signal.

To help protect the motor coil, the ZXBM2004 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.

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.

The ZXBM2004 is available in small space saving low profile

U-QFN3030-16 and QSOP-16 packages.

Features

• Supports two-phase BLDC motor control

• Operating voltage: 4.7V to 18V

o Can be extended with external regulator

• PWM speed control via external Thermister, DC voltage or

PWM signals

• Reference voltage output

• Built-in Hall amplifier allows direct connection of Hall

element

• Rotor Lock Protection (Lock detection, output shutdown

and automatic re-start)

• Rotor lock detect (RD) output

• Minimum speed setting

• Frequency generator (FG) output for speed measurements

• Low noise

• Space saving lo w profile U-Q F N3030-16 and QSOP-16

packages

• “Green” Molding Compound

Pin Assignments

Applications

• Desktop PC and Servers fans and blowers

• Instrumentation fans

• Central heating blowers

• Automotive instrument cooling and climate control

• Extractor fans

• General motors and pumps

(Top View)

QSOP-16

SPD

H+

H-

GND

Ph1

Ph2

PWM

LCK

V+OP

ThRef

MIN

N/C

ZXBM2004

(Top View )

U-QFN3030-16

H-

Ph1

GND

H+

V+OP

Ph2

SPD

ThRef

PWM

MIN

LCK

ZXBM2004

TWO PHASE VARIABLE SPEED

MOTOR CONTROL PRE-DRIVER

ZXBM2004

Document number: DS33433 Rev. 5 - 2 2 of 19

www.diodes.com February 2012

NEW PRODUCT

Typical Application Circuit

Pin Descriptions

Pin Name Description

H+ Hall input to non-inverting input of internal operational amplifier

H- Hall input to inverting input of interna l op erational amplifier

ThRef Reference output voltage

SPD Speed control pin; T he control sign al vo ltage shoul d be bet ween 3V to 1V for 0% to 10 0% (full sp eed)

speed control

CPWM PWM frequency setting pin: Conn ect a capacitor from this pin to ground (0V) to set PWM frequency.

Capacitor of 0.1nF will give PWM frequency of 24kHz typical.

SMIN Minimum speed setting pin: Voltage between 3V to 1V on this pin sets the minimum speed

between 0% to full speed. Lowest minimum speed achieved depends on the motor coil

design.

GND Supply return ground pin

CLCK Rotor lock detect and auto re-start timing pin: Conn ect a capacitor from this pin to ground to set the lock

detect and restart timing.

RD Rotor lock detect pin: Open collector output to indicate rotor lock detection

Connect a pull-up resistor from the pin to the pull-up supply rail

FG Frequenc y Generator output to provide a tac hometer signal

Ph1 Phase-1 low-side external power switch drive output pin: Darlington emitter follower output with active

pull down to give source/sink current of 80mA/16mA

Ph2 Phase-2 low-side external power switch drive output pin: Darlington emitter follower output with active

pull down to give source/sink current of 80mA/16mA

V+OP Phase output supply voltage pin: The pin allows to optimize the supply to output drive depending on

whether external power switch is Bipolar s witch or MOSFET

VCC Power supply pin

ZXBM2004

TWO PHASE VARIABLE SPEED

MOTOR CONTROL PRE-DRIVER

ZXBM2004

Document number: DS33433 Rev. 5 - 2 3 of 19

www.diodes.com February 2012

NEW PRODUCT

Functional Block Diagram (Note 1)

Speed &

Lock

Detect

Hall

CLCK

SPD

H+

H- Hall

Amp

Locked

Rotor

Detect

Phase

Drive &

Control

GND

VCC

Set Min

Speed

Vref

SMIN

ThRef

Ph2 Lo

Ph1 Lo

Vcc

Speed Control VoltageVSPD

Vcc

CPWM

V+OP

PWM Osc

Supply Voltage

L1 L2

Set Phase Drive

Current Limit

Vcc

Hall Bias

Notes: 1. The ZXBM2004 has an open-collector FG and RD. Typically a pull-up resistor of 10kΩ is recommended from FG or RD pin to the supply voltage.

ZXBM2004

TWO PHASE VARIABLE SPEED

MOTOR CONTROL PRE-DRIVER

ZXBM2004

Document number: DS33433 Rev. 5 - 2 4 of 19

www.diodes.com February 2012

NEW PRODUCT

Absolute Maximum Ratings (TA = 25°C, unless otherwise noted, Note 2)

Symbol Characteristics Values Unit

VCCMAX Supply voltage -0.6 to +20 V

ICCMAX IC input current 100 mA

PDMAX Power Dissipation (Note 4) QSOP-16 500

U-QFN3030-16 (Note 3) 1500

TA Operating ambient temperature -40 to +110 oC

TSTG Storage Temperature Range -55 to +150 oC

Note: 2. 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.

3. U-QFN3030-16 dissipation is based on a two-layer 2oz. copper 2”x 2” FR4 substrate PCB with thermal vias to the bottom layer.

Recommended Operating Conditions (TA = 25°C)

Symbol Parameter Conditions Min Max Unit

VCC Supply Voltage Operating 4.7 18.0 V

TA Operating Temperature Range Operating -40 +110 oC

Electrical Characteristics (TA = 25°C, VCC = 12V)

Symbol Characteristics Conditions Min Typ. Max Unit

ICC Supply Current No Load (Note 4) - 5.5 7.5 mA

VIN Hall amplifier input voltage Diff peak to peak 40 mV

VCM Hall amplifier common mode voltage 0.5 VCC -1.5 V

VOFS Hall amplifier input offset volt age ±7 mV

IBS Hall amplifier bias current 400 700 nA

VOH Ph1 and Ph2 output high voltage IOH = 80mA VCC -2.2 Vcc -1.8 V

VOLA Ph1 and Ph2 output low voltage IOH =16mA (Note 5) 0.4 0.6 V

VOLB Ph1 and Ph2 output low voltage IOH = 50uA (No t e 6) 0.4 0.6 V

IOH Ph1 and Ph2 output source current 80 mA

IOL Ph1 and Ph2 output sink current 16 mA

IPWMC C

PWM charge current 4.5 7.85 µA

IPWMD C

PWM discharge current 38 65 µA

VTHH C

PWM high threshold voltage 3 V

VTHL C

PWM low threshold volta ge 1 V

FPWM PWM frequency CPWM = 0.1nF 24 kHz

Notes: 4. Measure with pins H+, H-, CLCK and CPWM and all other signal pins open circuit

5. Measured when opposing Phase Output is Low

6. Measured when opposing Phase Output is High

ZXBM2004

TWO PHASE VARIABLE SPEED

MOTOR CONTROL PRE-DRIVER

ZXBM2004

Document number: DS33433 Rev. 5 - 2 5 of 19

www.diodes.com February 2012

NEW PRODUCT

Electrical Characteristics (cont.) (TA = 25°C, VCC = 12V)

Symbol Characteristics Conditions Min Typ. Max Unit

VThRef ThRef reference output voltgae IOThRef = 100µA 2.88 2.96 3.10 V

IOThRef ThRef output current 1 mA

IISMIN S

MIN input current VIN = 2V, SPD=open -0.25 -0.3 µA

VSPDL SPD voltage minimum 100% PWM drive 1 V

VSPDH SPD voltage maximum 0% PWM drive 3 V

IISPD SPD voltage maximum VIN = 2V 0.8 2 µA

ILCKC C

LCK charge current 2.8 3.8 µA

ILCKD C

LCK discharge current 4.6 054 µA

VCLCKTHH CLCK high threshold voltage 3 V

VCLCKTHL CLCK low threshold voltage 1 V

Lock condition On:Off ratio 1:12

IFGOL FG Low level output current 5 mA

VFGOL FG Low level output voltage IFGOL = 5mA 0.5 V

IRDOL RD Low level output current 5 mA

VRDOL RD Low level output current IRDOL = 5mA 0.5 V

tCD Commutation delay 7.5 µs

ZXBM2004

TWO PHASE VARIABLE SPEED

MOTOR CONTROL PRE-DRIVER

ZXBM2004

Document number: DS33433 Rev. 5 - 2 6 of 19

www.diodes.com February 2012

NEW PRODUCT

Functional Descriptions

H+ and H- Hall Inputs

The rotor position is detected by a Hall sens or, with the output applied to the H+ and H-pi ns. This sensor can be either a 4 pi n

'naked' Hall device or of the 3 pin buffer ed switc hing t ype. For a 4 pin dev ice the di fferential Ha ll output signal is co nnec ted to

the H+ and H-pins. For a buffered Hall sensor the Hall device output is attached to the H+ pin, with a pull-up attached if

needed, whilst the H-pin has an external pot ential divider attached to hold the pin at half VCC. When H+ is high in relation to

H-, Ph2 is the active drive.

ThRef - Output Reference Voltage

This is a reference voltage of nominal 3V. It is designed for the ability to 'source' and therefore it will not 'sink' any current

from a higher voltage. The current drawn from the pin by the minimum speed potential divider to pin SMIN and any voltage

setting network should not exc eed 1mA in total at maximum temperature.

SPD - Speed Control Input

The voltage applied to the SPD pin provides control over motor speed by varying the Pulse Width Modulated (PWM) drive

ratio at the Ph1 and Ph2 outputs. The control signal takes the form of a voltage input of range 3V to 1V, representing 0% to

100% drive respectively.

If variable speed control is not required this pin can be left with an external potential divider to set a fixed speed or tied to

ground to provide full spee d i.e. 100% PWM drive.

If required this pin can also be used as an enable pin. The applicatio n of a voltage >3.0V will force the PWM drive fully off, in

effect disabling the drive.

SMIN – Minimum Speed Setting

A voltage can be set on SMIN pin via a potential divider between the ThRef and Gnd. This voltage is monitored by the SPD

pin such that internally SPD voltage cannot rise above S MIN voltage. As a higher voltage on the SPD pin represents a lo wer

speed it therefore restricts the lower speed range of the fan. If this feature is not required the pin is left tied to ThRef so no

minimum speed will be set.

If the fan is being controlled from an external voltage source onto the SPD pin then eith er this feature should not be used or if

it is required then a resistor greater than 1kΩ shoul d be placed in series with the SPD pin.

CPWM – Output PWM Frequency Setting

This pin has an external ca pacitor attached to set the PW M frequency for th e Phase drive outputs. A cap acitor value of 0.1nF

will provide a PW M frequency of typically 24kHz. The CPWM timing period (TPWM) is determined by the following equation:

()()

PWMD

THLTHH

PWMC

THLTHH

PWM ICVV

ICVV

T×−

×−

Where: C = (CPWM +15) in pF

VTHH and VTHL are the CPWM pin threshold voltages

IPWMC and IPWMD are the charge and discharge currents in µA.

TPWM is in ms

As these threshold voltages are nomi nally set to VTHH = 3V and VTHL = 1V the equations can be simplified as follows:

PWMDPWMC

PWM IC2

IC2

T+=

ZXBM2004

TWO PHASE VARIABLE SPEED

MOTOR CONTROL PRE-DRIVER

ZXBM2004

Document number: DS33433 Rev. 5 - 2 7 of 19

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NEW PRODUCT

Functional Description (cont.)

CLCK - Locked Rotor Timing Capacitor

Should the fan stop rotati ng for any reason, i.e. an obstruction in the fan blade or a seize d bearing, then the d evice will ent er

a Rotor Locked condition. In this con dition after a predetermined time (T LOCK) the RD p in will go high and the P hase outputs

will be disabled. After a further delay (TOFF) the controller will re-enable the Phase drive for a defined period (TON) in an

attempt to re-start the fan. This cycle of (TOFF) and (TON) will be repeated indefinitely or until the fan re-starts.

GND – Supply Return

This is the device supply ground return pin and will generally be the most negative supply pin to the fan.

RD - Rotor Lock Detect Outpu t

This pin is the Locked Rotor status output as referred to in the CLCK timing section above. It is high when the rotor is stopped

and low when it is running.

This is an open collector drive giving an active pull down with the high level being provided by an external pull up resistor.

FR and RD Timing Diagram

Lock

Off

Hall

LCK

THH

THL

ZXBM2004

TWO PHASE VARIABLE SPEED

MOTOR CONTROL PRE-DRIVER

ZXBM2004

Document number: DS33433 Rev. 5 - 2 8 of 19

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NEW PRODUCT

Functional Descriptions (cont.)

FG -Frequency Generator (tac hometer) Output

This is the Frequency Generator output and is a buffered signal from the Hall sensor.

This is an open collector drive giving an active pull down with the high level being provided by an external pull up resistor.

Ph1 and Ph2 Output Drives

This pair of outputs drives the external devices. These outputs provide both the commutation and PWM waveforms. The

outputs are of the Darlington emitter follower type with an active pull-down to help faster switch off when using bipolar

devices. When in the hi gh state the outputs will provide up to 80mA of drive into the base or gates of external tra nsistors as

shown in the Typical Applicati on circuit following.

When in the low state the active Phase drive is capable of sinking up to 16mA when driving low to aid turn off times during

PWM operation. When the Phase is inactive the output is held low by an internal pull-d own resistor.

V+OP Phase Outputs Supply Voltage

This pin is the supply to the Phase outputs and will be connected differently dependant upon external transistor type. For

bipolar devices this pin will be connected by a resistor to the VCC pin. The resistor is used to control the current into the

transistor base so its value is chosen accordingly. For MOSFET devices the pin will connect directly to the VCC pin.

VCC – Supply Voltage

This is the device internal circuitr y supply voltage. F or 5V to 12V fans this can be supplie d directl y from the Fan Motor supply.

For fans likely to run in excess of the 1 8V maximum rating f or the device t his will be s upplied from an external reg ulator such

as a Zener diode.

ZXBM2004

TWO PHASE VARIABLE SPEED

MOTOR CONTROL PRE-DRIVER

ZXBM2004

Document number: DS33433 Rev. 5 - 2 9 of 19

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NEW PRODUCT

Application Note

The ZXBM2004 is primarily controlled by a voltage on the SPD pin. A voltage of 1V represents a 100% PWM at the Phase

Outputs and in turn represents full speed. 3V on the SPD pin conversely represents 0% PWM. The motor can therefore be

controlled simply by applying a control voltage onto the SPD pin with the minimal use of e x ternal components.

This voltage control method easily lends itself to control by other signal types. For example if a Thermistor is applied to the

SPD pin a varying voltage can be gen erated at the SPD pin as the resistance of the Thermistor varies with temperature.

A common form of control of fans is by a PWM signal derived from a central processor or controller. This signal can be

converted into a voltage and that voltage adjusted as necessary to compensate for motor none linearity, inclusion of the

Minimum speed feature etc.

Full applications detai ls and further example s of how to control the ZXBM2004 are available in th e Applications Notes AN41,

AN42 and AN43.

Fig 1. 12V Typical Circuit for Thermistor Controlled Speed

ZXBM2004

TWO PHASE VARIABLE SPEED

MOTOR CONTROL PRE-DRIVER

ZXBM2004

Document number: DS33433 Rev. 5 - 2 10 of 19

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NEW PRODUCT

Application Note (cont.)

Fig. 2 Typical Circuit for External PWM Controlled Speed (Single MOSFET)

Fig. 3 Typical Circuit for 48V Input and External PWM Control

ZXBM2004

TWO PHASE VARIABLE SPEED

MOTOR CONTROL PRE-DRIVER

ZXBM2004

Document number: DS33433 Rev. 5 - 2 11 of 19

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NEW PRODUCT

Application Note (cont.)

Fig. 4 Typical Circuit for Constant Speed Operation

ZXBM2004

TWO PHASE VARIABLE SPEED

MOTOR CONTROL PRE-DRIVER

ZXBM2004

Document number: DS33433 Rev. 5 - 2 12 of 19

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NEW PRODUCT

Application Note (cont.)

External Drive Transistors

Diodes offers a range of devices that are ideally suited to interface between the ZXBM2004 controller and the motor. The

following tables show a selection of products. If your needs are not covered by this selection then please refer to the more

comprehensive listings that can be fou nd on the Diodes website: www.didoes.com

MOSFETS

Part Number Type BVDSS

( V ) ID

( A ) RDS(on) @ VGS = 10V

\( Ω ) Package

Power switch

ZXMN10A09K N 100 7.7 0.085 TO252-3L

ZXMN10A25K N 100 6.4 0.125 TO252-3L

ZXMN10A25G N 100 4.0 0.125 SOT223

ZXMN10A11G N 100 2.4 0.35 SOT223

ZXMN10A08DN8 2 x N 100 2.1 0.25 SO8

ZXMN10B08E6 N 100 1.9 0.230 SOT23-6

ZXMN10A07Z N 100 1.4 0.7 SOT89

ZXMN6A09K N 60 11.2 0.04 TO252-3L

ZXMN6A25K N 60 10.7 0.05 TO252-3L

DMN6068LK3 N 60 8.5 0.068 TO252-3L

ZXMN6A09G N 60 7.5 0.04 SOT223

ZXMN6A25G N 60 6.7 0.05 SOT223

ZXMN7A11K N 60 6.1 0.120 TO252-3L

ZXMN6A09DN8 2 x N 60 5.6 0.04 SO8

DMN6068SE N 60 5.6 0.068 SOT223

ZXMN6A08G N 60 5.3 0.08 SOT223

ZXMN6A25DN8 2 x N 60 4.7 0.055 SO8

ZXMN6A11Z N 60 3.6 0.120 SOT89

ZXMN6A07Z N 60 2.2 0.250 SOT89

ZXMN6A07F N 60 1.4 0.250 SOT23

ZXBM2004

TWO PHASE VARIABLE SPEED

MOTOR CONTROL PRE-DRIVER

ZXBM2004

Document number: DS33433 Rev. 5 - 2 13 of 19

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NEW PRODUCT

Application Note (cont.)

Bipolar Transistors

Part Number Type VCEO

( V ) IC

( A ) VCE(sat) @IC/IB

( mV @ A/mA ) Package

Power switch

FZT855 NPN 150 4 65 @ 0.5/50 SOT223

FMMT624 NPN 125 1 150 @ 0.5/50 SOT23

ZX5T853G NPN 100 6 125 @ 2/100 SOT223

ZXTN19100CZ NPN 100 5.25 65 @ 1/100 SOT89

ZXTN25100BFH NPN 100 3 135 @ 0.5/10 SOT23

ZXTN25100DFH NPN 100 2.5 170 @ 0.5/10 SOT23

FCX493 NPN 100 1 300 @ 0.5/50 SOT89

FCX1053A NPN 75 3 200 @ 1/10 SOT89

ZXTN19060CG NPN 60 7 155 @ 1/10 SOT223

ZX5T851G NPN 60 6 135 @ 2/50 SOT223

DXT2010P5 NPN 60 5 70 @ 1/10 PowerDI5

FCX493A NPN 60 1 500 @ 1/50 SOT89

FCX619 NPN 50 3 260 @ 2/50 SOT89

FMMT619 NPN 50 2 220 @ 2/50 SOT23

FCX619 NPN 50 3 260 @ 2/50 SOT89

Drive buffer and level shift

FMMT493 NPN 100 1 300 @ 0.5/50 SOT23

FMMT493A NPN 60 1 250 @ 0.5/50 SOT23

ZXTN2038F NPN 60 1 250 @ 0.5/50 SOT23

DSS4160 NPN 60 1 140 @ 0.5/50 SOT563

ZXBM2004

TWO PHASE VARIABLE SPEED

MOTOR CONTROL PRE-DRIVER

ZXBM2004

Document number: DS33433 Rev. 5 - 2 14 of 19

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NEW PRODUCT

Thermal Performance Characteristics

(1) Package Type: QSOP-16

(2) Package Type: U-QFN3030-16 (Note 7)

Note: 7. U-QFN3030-16 dissipation is based on a two-layer 2oz. copper 2”x2” FR4 substrate PCB with thermal vias to the bottom layer.

80 100 120 140 1800 204060

AMBIENT TEMPERA TURE (°C)

QSOP16 Derati ng Curve

0.6

0.5

0.4

0.3

0.2

0.1

MAXIM

(W)

0.6

0.5

0.4

0.3

0.2

0.1

MAXIM

(W)

80 100 120 140 1800204060

AMBIENT TEMPERA TURE (°C)

QSOP16 Derating Curve

ZXBM2004

TWO PHASE VARIABLE SPEED

MOTOR CONTROL PRE-DRIVER

ZXBM2004

Document number: DS33433 Rev. 5 - 2 15 of 19

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NEW PRODUCT

Ordering Information

Device Packaging

(Note 8 & 9) 13” Tape and Reel

Quantity Part Number Suffix

ZXBM2004Q16TC QSOP-16 2500/Tape & Reel TC

ZXBM2004JA16T C U-QFN3030-16 3000/Tape & Reel TC

Notes: 8. 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

9. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. No purposely added lead. Halogen and Antimony free. Please visit our website

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

Marking Information

(1) Package type: QSOP-16

Part Number Package Identification Code

ZXBM2004Q16TC QSOP-16 ZXBM

2004

(2) Package type: U-QFN3030-16

Part Number Package Identification Code

ZXBM2004JA16TC U-QFN3030-16 24

ZXBM2004

PackingPackage

Q16: QSOP-16 TC : 13 " Tape & Reel

16 :

-QFN3030-16

YWZ

(Top View)

: Identificat ion Code

: Year : 0 ~ 9

: Week : A ~ Z : 1 ~ 26 week;

a ~ z : 27 ~ 52 week: z repre sents

52 and 53 week

: A ~ Z : Internal Code

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MOTOR CONTROL PRE-DRIVER

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NEW PRODUCT

Package Outline Dimensions (All Dimensions in mm)

(1) Package type: QSOP-16

(2) Package type: U-QFN3030-16

QSOP-16

Dim Min Max Typ

1.55 1.73 -

1 0.10 0.25 -

2 1.40 1.50 -

b 0.20 0.30 -

c 0.18 0.25 -

D 4.80 5.00 -

E 5.79 6.20 -

E1 3.81 3.99 -

e 0.635 BSC

h 0.254 0.508 -

L 0.41 1.27 -

L1 1.03 REF

L2 0.254 BSC

R 0.0762 - -

R1 0.0762 - -

ZD 0.23 REF

θ 0° 8° -

θ1 5° 15° -

θ2 0° - -

ll Dimensions in mm

U-QFN3030-16

Dim Min Max Typ

A 0.55 0.65 0.60

A1 0 0.05 0.02

A3 — — 0.15

b 0.18 0.28 0.23

D 2.95 3.05 3.00

D2 1.40 1.60 1.50

E 2.95 3.05 3.00

E2 1.40 1.60 1.50

e — — 0.50

L 0.35 0.45 0.40

Z — — 0.625

All Dimensions in mm

SideView

AA3

BottomView

b (16x)

L (16x)

(Pin #1 ID)

Z (8x)

0.450

R0.200

E1E

E/2

E1/2

PIN 1

SEE DETAIL 'A'

GAUGE PLANE

SEATING PLANE

︵

︶

︵

︶

θ1

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TWO PHASE VARIABLE SPEED

MOTOR CONTROL PRE-DRIVER

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NEW PRODUCT

Suggested Pad Layout

(1) Package type: QSOP-16

(2) Package type: U-QFN3030-16

Dimensions

alue

(in mm)

C 0.635

X 0.350

X1 4.795

Y 0.1.450

Y1 6.400

ll Dimensions in mm

Dimensions

alue

(in mm)

C0.500

G0.150

G1 0.150

0.350

11.800

Y0.600

Y1 1.800

All Dimensions in mm

X (16x)

Y (16x)

X (16x)

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NEW PRODUCT

Taping Orientation

For QSOP-16 and U-QFN3030-16

Notes: 10. The taping orientation of the other package type can be found on our website at http://www.diodes.com/datasheets/ap02007.pdf.

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NEW PRODUCT

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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

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Diodes Incorporated and its subsidiaries reserve the right to m ake modifications, enhancements, improvements, corrections or other

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Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or s ystems 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

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in the labeling can be reasonably expected to result in significant injury to the user.

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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.