AP1029ADN

[AP1029ADN]
AP1029ADN
32V H-Bridge DC Motor Driver IC
1. General Description
The AP1029ADN is a 1ch H-Bridge motor driver that corresponds to an operating voltage of 32V. Four
drive modes, which are forward, reverse, brake, and standby are available. An N-ch MOSFET is located at
low side and a P-ch MOSFET is located at high side of the output block. The output voltage can be
controlled externally or by PWM input signal. Since the AP1029ADN utilizes internal regulator outputs as
control power, it can be operated by a single power supply so that external components are able to be
reduced. It also features an under voltage lockout circuit, a thermal shutdown circuit and an over-current
protection circuit.
2. Features












Operating Temperature Range
Motor Driver Operating Voltage Range
Maximum Output Current (DC)
H-Bridge On Resistance
Switchable output voltage control function
Built-in Start-up Function
Built-in 4.5V Output Regulator
Anomaly Detection Output pin (FLG pin)
Built-in Under Voltage Lockout Circuit
Built-in Thermal Shutdown Circuit
Built-in Over Current Protection Circuit
Package
-40°C ~ 85°C
5.5V ~ 32V
1.2 A (Ta=25°C)
[email protected]=25°C
Input Signal Control, External Voltage Control
Hard-start and Soft-start functions (selectable)
4.5V(typ)
175°C(typ)
1.5A(min)
16-pin QFN (3mm×3mm)
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3. Table of Contents
1.
2.
3.
4.
General Description ................................................................................................................................... 1
Features ...................................................................................................................................................... 1
Table of Contents ....................................................................................................................................... 2
Block Diagram and Functions ................................................................................................................... 3
■ Functions .................................................................................................................................................... 4
5. Ordering Guide .......................................................................................................................................... 4
6. Pin Configurations and Functions .............................................................................................................. 5
■ Pin Configurations ..................................................................................................................................... 5
■ Functions .................................................................................................................................................... 5
7. Absolute Maximum Ratings ...................................................................................................................... 6
8. Recommended Operating Conditions ........................................................................................................ 7
9. Electrical Characteristics ........................................................................................................................... 7
10.
Functional Descriptions ....................................................................................................................... 10
10.1
Output Voltage ............................................................................................................................. 10
10.2
Control Logic ............................................................................................................................... 10
10.3
Start-up Function .......................................................................................................................... 11
10.4
Operation Description After Enable Input Level Trasition .......................................................... 13
10.5
Protection Circuits ........................................................................................................................ 14
11.
Recommended External Circuits.......................................................................................................... 15
12.
Package ................................................................................................................................................ 16
■ Outline Dimensions.................................................................................................................................. 16
■ Marking .................................................................................................................................................... 16
13.
Revise History ...................................................................................................................................... 17
IMPORTANT NOTICE .............................................................................................................................. 18
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4. Block Diagram and Functions
OUTA
OUTB
VM
VDC
LDO
VDUTY
DUTY
CTRL
PGND
OSC
OCP UVLO TSD
Control circuit
TEST
FLG
EN
INA
INB
M0
EP
M1
POL
GND
Figure 1. Block Diagram
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■
Functions
 4.5V Output LDO (LDO)
Generate a voltage of 4.5V from VM = 5.5 ~ 32V, and then output to the external terminal (VDC).
 Oscillator(OSC)
50kHz oscillator. It is used as clock of the PWM chopper frequency.
 VM Under Voltage Lockout (UVLO)
It is an under Voltage Lockout circuit for VM with hysteresis.
 Thermal Shutdown (TSD)
It is an internal Thermal Shutdown detection circuit with hysteresis.
 Over Current Protection (OCP)
It is an output stage overcurrent detection circuit for the OUTB and the OUTA pins. If the detected over
current lasts for 10us, the OUTA and the OUTB become Hi-Z state for a certain period (350us) by this
circuit. Hi-Z status will be released after 350us.
 PWM Duty Control (DUTYCTRL)
It is a PWM duty circuit. It generates the PWM duty ratio that corresponds to the ratio of VM voltage and
VDUTY voltage. The duty ration can be adjusted by setting the M0 and the M1 pins.
 H-Bridge Driver
It consists of an N-ch LDMOS at low side and a P-ch LDMOS at high-side.
・ Anomaly Detection Output
FLG pin is an open drain output pin. It outputs “H” signal by connecting to an external pull-up resistor.
During normal operation, it outputs “L”. During standby state, overheat detection (TSD), over-current
detection (OCP) or VM low voltage detection (UVLO) operation, it outputs “H” signal.
5.
AP1029ADN
-40°C ~+85°C
Ordering Guide
16-pin QFN
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6.
■
2
INB
3
FLG
4
M1
M0
TEST
14
13
(Top View)
Exposed Pad
5
6
7
12
PGND
11
OUT
10
VM
9
OUTA
8
PGND
INA
15
VDC
1
16
GND
EN
POL
Pin Configurations
VDUTY
■
Pin Configurations and Functions
Functions
Pin Number
Name
I/O
(Note 1)
1
EN
I
Enable signal input
200kΩ Pull-down
2
INA
I
Control signal input
200kΩ Pull-down
3
INB
I
Control signal input
200kΩ Pull-down
4
FLG
O
Flag Output
N-ch open-drain output
5
VDUTY
I/O
6
GND
P
Ground
7
VDC
O
Internal 4.5V regulator output
8
PGND
P
Power GND
9
OUTA
O
Motor driver output
10
VM
P
Motor driver power supply
11
OUTB
O
Motor driver output
12
PGND
P
Power GND
13
TEST
I
TEST Pin
(Note 2)
14
M0
I
Output ratio Control
200kΩ Pull-up
15
M1
I
Output ratio Control
200kΩ Pull-up
16
POL
I
Soft Start polarity
200kΩ Pull-up
Function
Condition
Output Duty Setting
(Note 2)
Exposed Pad
EP
P
Heat Dissipation
(Note 2)
Note 1. I(Input pin), O(Output pin), P(Power pin), I/O(Input / Output pin)
Note 2. The exposed pad must be connected to GND.
Note 3. Let M0, M1, POL pin open or connect VDC pin when make their signals “H”.
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7.
Parameter
Motor Power Supply Voltage
VDC, EN, INA, INB, FLG
Terminal
POL, VDUTY, M0, M1
Terminal
VM Level Terminal (OUTA,
OUTB)
GND-PGND Between
Output Current
Absolute Maximum Ratings
Symbol
VM
min
-0.5
max
40
Unit
V
Condition
Vterm1
-0.5
5.5
V
Vterm2
-0.5
VDC+0.5
V
VDC+0.5≦5.5V
Vterm3
-0.5
VM+VF
V
VM+VF≦40V
Iload
-0.3
0.3
V
1.2
A
OUTA、OUTB
2
W
Ta=25°C (Note 5)
Power Dissipation
PD
1
W
Ta=85°C (Note 5)
Junction Temperature
Tj
150
°C
Storage Temperature
Tstg
-50
150
°C
Note 4. All above voltages are with respect to GND=PGND=0V. GND and PGND must be connected to a
ground plane.
Note 5. The rating calculated by θJA=60°C /W. The exposed pad must be connected to ground. The exposed
pad must be connected to GND.
WARNING: Operation at or beyond these limits may result in permanent damage to the device. Normal
operation is not guaranteed at these extremes.
Figure 2. Maximum Power Dissipation
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8.
Recommended Operating Conditions
Parameter
Motor Driver Supply Voltage
Symbol
VM
min
5.5
typ
12.0
Max
32.0
Unit
V
Input Frequency Range
Operating Temperature Range
Fin
Ta
-40
-
200
85
kHz
°C
VDUTY Input Voltage Range
VDUTY
0.5
Note 6. All above voltages are with respect to GND=PGND=0V.
4.0
V
9.
Condition
M0=M1=”H”
Electrical Characteristics
(Ta = -40~85°C, VM=5.5~32V, unless otherwise specified.)
Parameter
Symbol
Condition
min
typ
max
Unit
Quiescent Current
VM Quiescent Current at Power-OFF
IVMOFF
EN= “L”
-
-
10
uA
IVM
EN= “H”
-
1.7
2.6
mA
Driver On Resistance
(High Side+Low Side)
RON1
Iload=±100mA,
Ta=25°C
-
0.8
1.5
Ω
Driver On Resistance
(High Side+Low Side)
RON2
Iload=±1.0A,
Ta=25°C
-
1.0
1.5
Ω
Driver On Resistance
(High Side+Low Side)
RON3
Iload=±100mA
-
0.8
1.5
Ω
IF=100mA
-
0.8
1.2
V
25
50
95
kHz
VM Input Current at Operation
H-Bridge Circuit
Body Diode Forward Voltage
PWM Chopper Frequency
VF
fPWM
M0=M1= “L” (Note 7)
H-Bridge Output Delay Time
(“L”→”H”)
tPDLHHB tr=tf=10ns (Note 8)
-
-
1.0
us
H-Bridge Output Delay Time
(“H”→”L”)
tPDHLHB tr=tf=10ns (Note 8)
-
-
1.0
us
0.6
0.9
-
us
H-Bridge Output Pulse Width
tPWOHB
M0=M1= “H”,
INA=200kHz,
PWL=1us,
tr=tf=10ns
Output Duty Ratio 1
DUTY1
VM=12V, VDUTY=1.5V
M0=M1= “L”
20
25
30
%
Output Duty Ratio 2
DUTY2
VM=12V, VDUTY=1.5V
M0= “H”, M1= “L”
40
50
60
%
Output Duty Ratio 3
DUTY3
VM=12V, VDUTY=1.5V
M0= “L”, M1= “H”
80
-
-
%
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Parameter
Symbol
Condition
min
typ
max
Unit
4.5V Output Regulator
Internal Regulator Output Voltage
VDC
IDC=0.1mA
4.0
4.5
5.0
V
Control Logic
Input High Level Voltage
VIH
2.0
-
-
V
Input Low Level Voltage
VIL
-
-
0.8
V
Input Pulse Rise Time
tR
M0=M1= “H”
-
-
1.0
us
Input Pulse Fall Time
tF
M0=M1= “H”
-
-
1.0
us
Input High Level Current
(EN, INA, INB)
IIH1
VIH=3.0V
7.5
15
30
uA
Input High Level Current
(M0, M1, POL)
IIH1
VIH=VDC
-1
-
1
uA
Input Low Level Current
(EN, INA, INB)
IIL2
VIL=0V
-1
-
1
uA
Input Low Level Current
(M0, M1, POL)
IIL2
VDC=4.5V, VIL=0V
11.25
22.5
45
uA
Output High Level Voltage(VDUTY)
VOH
INA=INB=“L”,
POL=“H”,
M1=“L” or M0=“L”,
Io=-1mA
VDC-0.4
-
-
V
INA=INB=“L”,
POL=“L”,
M1=“L” or M0= “L”,
Io=+1mA
-
-
0.4
V
-
-
500
Ω
4.0
4.5
5.0
V
150
175
200
°C
-
30
-
°C
1.5
-
-
A
Output Low Level Voltage(VDUTY)
FLG-On Resistance
VOL
RONFLG Io=+1mA
Protection Circuit
VM Under Voltage Detect Voltage
Thermal Shutdown Temperature
Temperature Hysteresis
Over Current Protection
Note 7. Refer to Figure 4.
Note 8. Refer to Figure 3.
Note 9. Not tested in production.
VMUV
TTSD
(Note 9)
TTSDHYS (Note 9)
IOCP
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INA
H
50%
INA
50%
INB
INB
tPDHLHB
H
tPDHLHB
tPDLHHB
OUTA
tPDLHHB
L
90%
OUTA
90%
50%
OUTB
tPWOHB
tPWOHB
10%
OUTB
10%
L
Brake
50%
CW
Brake
Brake
CCW
Brake
(b) Reverse operation
(a) Forward operation
Figure 3. Output delay time timing chart (EN=”H”)
tF
tR
90%
OUTA:INA=H, INB=L
(OUTB:INA=L, INB=H)
M0=M1≠H
50%
50%
10%
fPWM
Figure 4. Output Rise /Fall Timing Chart (PWM Control Mode, EN=”H”)
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10. Functional Descriptions
10.1 Output Voltage
Output voltage (Vout), is controlled by the PWM control mode that depends on the external reference
voltage input to the VDUTY pin. However, Vout never exceeds VM. Vout is affected by on-resistance, load
current and etc. under loaded condition.
Vout = VDUTY × N (under no-load condition)
"N" is set by the M1 and the M0 pins as follows. However, in the case of M0 pin = M1 pin = "H", the
AP1029ADN will not be in PWM control mode but be in Input control mode according to the INA and the
INB inputs. Start-up function does not work at this time. When the AP1029ADN is used in input control
mode, make sure that the VDUTY pin and the POL pin are Open.
For example, Vout will be 3V by setting M1 = M0 pins = “L” when VDUTY is 1.5V, and It will be 6V by
setting M0 = “H” and M1 = “L” when VDUTY is 1.5V.
Table 1. Output Voltage Setting Table
M1
M0
Mode of operation
L
L
N=2、PWM control mode
L
H
N=4、PWM control mode
H
L
N=8、PWM control mode
Input control mode
H
H
(INA and INB Inputs response operation)
Start-up function
On
On
On
Off
10.2 Control Logic
The relationship between the input and output of each mode are shown below.
Table 2. Truth Table
Input
Output
Function
EN
INA
INB
OUTA
OUTB
H
L
L
Hi-Z
Hi-Z
Standby(idle)
H
L
H
L
H(PWM)
Reverse
H
H
L
H(PWM)
L
Forward
H
H
H
L
L
Brake(stop)
L
Hi-Z
Hi-Z
Stop
Note 10. See Figure 8 and Figure 9 for timing chart of Standby and Stop. See Figure 3 for timing chart of
Brake.
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10.3 Start-up Function
The AP1029ADN has a start-up function. The VDUTY pin is used to set the Duty of the PWM control
mode. In addition, by connecting the RDT1 and the RDT2 capacitances and the CDT resistance as shown in
Figure 5, the AP1029ADN will execute a start-up operation. Start-up operation can be switched by setting
the POL pin. Hard-start operation will be executed when the POL pin = “L” and Soft-start operation will be
executed when the POL pin = “H”.
Hard-start operation is for the situation when motor torque is needed at start-up.
Soft-start operation is for the situation when motor needs to rotate slowly at start-up.
Start-up function works in the following cases.
① INA or INB becomes “H” from standby mode. (Note that the initial mode should be standby, not brake.)
② the IC recovers from protection status.
Table 3. Start-up settings
INA
INB
L
L
L
L
H
H
POL
L
H
-
VDUTY pin status
H(Duty=100%)
L(Duty=0%)
Hi-Z
Hi-Z
How to use start-up function is shown below.
When the POL pin= “L", the EN pin= “H" and the INA = INB pins = “L", High side of the VDUTY pin
output (MP1) is turned on, therefore the external capacitor (CDT) is charged by the VDC voltage. High side
of the VDUTY pin output (MP1) will be turned off and capacity of the CDT is discharged by the RDT2
external resistor if INA = INB ≠ “L" is input, and then hard-start operation is executed. The VDUTY pin
voltage is determined and stabilized by the RDT1 and the RDT2 external resistors. (Refer to Figure 6)
Figure 5. Start-up Circuit Example
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Figure 6. Start-up Operation Example (Hard Start: POL = “L", pull-up power supply = VDC)
Figure 7. Start-up Operation Example (Soft-Start: POL = “H", pull-up power supply = VDC)
VDUTY voltage after certain time(t) can be calculated as follows.
Soft-start:
VDUTY (V ) =VDC −
RDT 1*VDC  RDT 2
RDT 1 + RDT 2


exp −
* t  
1 +
RDT 1 + RDT 2 
RDT 1
 CDT * RDT 1* RDT 2  
Hard-start:
VDUTY (V ) =
RDT 2 *VDC 
RDT 1
RDT 1 + RDT 2


1 +
exp −
* t  
RDT 1 + RDT 2  RDT 2
 CDT * RDT 1* RDT 2  
Sample Calculation:
(Condition; VDC=4.5V, RDT1=RDT2=1MΩ, CDT=1nF)
VDUTY after 500us
In case of Soft start :1.422V
In case of Hard start :3.078V
VDUTY after 5ms
In case of Soft start :2.250V
In case of Hard start:2.250V
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10.4 Operation Description After Enable Input Level Trasition
4.5V LDO output will rise by applying a 5.5V voltage or more to the VM pin and setting the EN pin = “H”.
Input the INA and the INB signals 3ms (t1 period) after the EN pin = “H”, waiting for the stabilization of the
VDC output. After the certain stabilization time of VDC output (t1 period), The IC becomes Stanby and INA
and INB input become valid. Figure 8 is timing chart from VM power supply to INA, INB input is valid.
When using start-up function, stabilization time may take more than 3ms depends on the value of the
external resistance and capacitor connected to the VDUTY pin. In this case, input timing of INA and INB
should be after stabilization of VDUTY pin voltage.
4.5V LDO output stops after inputting “L” to EN pin. Within 100ms(t2 period), OUTA and OUTB become
Hi-Z(Stop). Do not change input levels of INA and INB, because OUTA and OUTB changes according to
input level of INA and INB during t2 period. Figure 9 is timing chart from IN=”H” becomes “L” to
OUTA=OUTB = Hi-Z.
5.5V~32V
5.5V
t1=3ms
VM
EN
VDC
INA,
INB
INA,INB
入力有効
input valid
FLG
Hi-Z
VDUTY
Hi-Z
OUTA
OUTB
Hi-Z
Standby
スタンバイ状態
Figure 8. Timing Chart of EN voltage input after power-up
H
EN
L
INA H
INB
L
H
Hi-Z
OUTA
OUTB
Hi-Z
L
t2=100ms
停止状態
Stop
Figure 9. Timing Chart from EN=”H” becomes “L” to OUTA= OUTB=Hi-Z
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10.5 Protection Circuits

VM Under Voltage Lockout
The OUTA and the OUTB outputs are set to Hi-Z state when the VM voltage becomes 4.5V (typ) or less to
prevent malfunction of the IC. The FLG pin becomes Hi-Z state at the same time.

Thermal Shutdown
When an abnormal high temperature 175°C (typ) is detected, the OUTA and the OUTB outputs are set to
Hi-z state to prevent getting damages by self-heating. The internal 4.5V LDO is stopped and the FLG pin
becomes Hi-Z state at the same time. The AP1029ADN restarts when the temperature drops to under 145°C
(typ).

Over Current protection
The AP1029ADN integrates an over current protection circuit that protects the device from damages caused
by output short of H-bridge driver, short-to-ground and short-to-supply. When a MOSFET current more than
1.5A lasts for 10us, the OUTA and the OUTB outputs are set to Hi-Z state for 350us. The FLG pin becomes
Hi-Z state at the same time. After 350us, the AP1029ADN returns to normal operation automatically.
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11. Recommended External Circuits
Figure 10. Recommended External Circuit
Table 4. Recommended External Components
Item
min
typ
max
Unit
Note
1.0
Ceramic Capacitor
µF
CVM
47
Electrolytic Capacitor
µF
CVDC
1.0
Ceramic Capacitor
µF
RDT1
0.2
MΩ
(Note 11)
RDT2
0.1
MΩ
(Note 11)
RFLG
1.0
MΩ
CDT
100
nF
Note 11. RDT1+RDT2 must be 100kΩ or more.
Note 12. Above values are examples. Please choose appropriate external components for your system board.
Note 13. Connection capacitance of CVM and CVC should be determined in consideration of the load
current profile, the load capacitance, the line resistance and etc. of the actual system board.
Note 14. Use resistive divider in case external voltage is applied to the VDUTY pin.
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[AP1029ADN]
12. Package
■
Outline Dimensions
Expansion of part A
■ Marking
29ADN
ABCD
Market No.
Date code
●
Pin#1 Indication
A
B,C
D
:Year code (Last 1 digit)
:Week code
:Management code
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13. Revise History
Date
(YY/MM/DD)
15/09/01
Revision
00
Page
-
Contents
First Edition
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[AP1029ADN]
IMPORTANT NOTICE
0. Asahi Kasei Microdevices Corporation (“AKM”) reserves the right to make changes to the
information contained in this document without notice. When you consider any use or application
of AKM product stipulated in this document (“Product”), please make inquiries the sales office of
AKM or authorized distributors as to current status of the Products.
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application examples of AKM Products. AKM neither makes warranties or representations with
respect to the accuracy or completeness of the information contained in this document nor grants
any license to any intellectual property rights or any other rights of AKM or any third party with
respect to the information in this document. You are fully responsible for use of such information
contained in this document in your product design or applications. AKM ASSUMES NO
LIABILITY FOR ANY LOSSES INCURRED BY YOU OR THIRD PARTIES ARISING FROM
THE USE OF SUCH INFORMATION IN YOUR PRODUCT DESIGN OR APPLICATIONS.
2. The Product is neither intended nor warranted for use in equipment or systems that require
extraordinarily high levels of quality and/or reliability and/or a malfunction or failure of which
may cause loss of human life, bodily injury, serious property damage or serious public impact,
including but not limited to, equipment used in nuclear facilities, equipment used in the aerospace
industry, medical equipment, equipment used for automobiles, trains, ships and other
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3. Though AKM works continually to improve the Product’s quality and reliability, you are
responsible for complying with safety standards and for providing adequate designs and safeguards
for your hardware, software and systems which minimize risk and avoid situations in which a
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contained in this document for any military purposes, including without limitation, for the design,
development, use, stockpiling or manufacturing of nuclear, chemical, or biological weapons or
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technology or any information contained in this document, you should comply with the applicable
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the EU RoHS Directive. AKM assumes no liability for damages or losses occurring as a result of
noncompliance with applicable laws and regulations.
6. Resale of the Product with provisions different from the statement and/or technical features set
forth in this document shall immediately void any warranty granted by AKM for the Product and
shall not create or extend in any manner whatsoever, any liability of AKM.
7. This document may not be reproduced or duplicated, in any form, in whole or in part, without prior
written consent of AKM.
015009487-E-00
2015/09
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