MP6536
The Future of Analog IC Technology
26V, 5.5A
3-Channel Half-Bridge Driver
FEATURES
•
•
•
•
•
•
•
•
•
•
•
5V to 26V VDD
±5.5A Peak Current Output
Up to 1MHz PWM Frequency
Protected Integrated Power 0.14Ω Switches
10ns Switch Dead Time
All Switches Current Limited
Internal Under-Voltage Protection
Internal Thermal Protection
Short-Circuit Protection
Fault Output Flag
3-Phase BLDC Motor Drive
DESCRIPTION
The MP6536 is a 3-channel half-bridge driver
IC intended to drive a 3-phase brushless DC
motor.
The MP6536 features a low-current shutdown
mode, standby mode, input under-voltage
protection, current limit, thermal shutdown, and
fault flag signal output. All channels of the
drivers interface with standard logic signals.
The MP6536 is available in a 40 lead QFN
5mmx5mm package.
APPLICATIONS
All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. For
MPS green status, please visit the MPS website under Quality Assurance.
“MPS” and “The Future of Analog IC Technology” are registered trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
VDD
10
9
8
7
6
5
4
3
2
BST1
LS1
LS1
SW1
SW1
VSP
VSP
VSP
SW2
SW2
1
PWM1
PWM2
FAULT
SHDN
PWM3
STBY
FAULT3
FAULT2
N/C
12
PWM1
13
PWM2
14
FAULTB
15
SHDNB
16
PWM3
17
STBYB
18
AGND
19
FLT3B
20
FLT2B
11
LS2
LS2
BST2
40
39
38
MP6536
20
VDR1
AGND
VDR2
BST3
LS3
LS3
37
35,36
34
33
32
31
PGND
PGND
N/C
21
22
23
24
25
26
27
28
29
30
SW3
SW3
N/C
VSP
VSP
VSP
N/C
MP6536 Rev. 1.0
2/26/2015
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
1
MP6536 - 26V, 5.5A 3-CHANNEL POWER HALF-BRIDGE
ORDERING INFORMATION
Part Number*
MP6536DU
Package
QFN-40 (5mmx5mm)
Top Marking
See Below
* For Tape & Reel, add suffix –Z (e.g. MP6536DU–Z);
For RoHS, compliant packaging, add suffix –LF (e.g. MP6536DU–LF–Z).
TOP MARKING
MPS: MPS Prefix:
YY: Year Code;
WW: Week Code:
MP6536: Part Number;
LLLLLLL: Lot number;
PACKAGE REFERENCE
TOP VIEW
AGND
VDR1
AGND
VDR2
BST2
BST3
LS2
LS2
LS3
32
LS3
31
40
39
38
37
36
35
34
SW2
SW2
VSP
VSP
VSP
SW1
SW1
LS1
LS1
BST1
33
1
2
3
4
5
6
7
8
9
10
FAULTB 14
PWM1 12
PWM3 16
STBYB 17
AGND 18
FLT3B 19
PWM2 13
SHDNB 15
FLT2B 20
11
30
29
28
27
26
25
24
23
22
21
SW3
SW3
VSP
VSP
VSP
NC
NC
PGND
PGND
NC
NC
MP6536 Rev. 1.0
2/26/2015
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
2
MP6536 - 26V, 5.5A 3-CHANNEL POWER HALF-BRIDGE
ABSOLUTE MAXIMUM RATINGS
(1)
VSP Supply Voltage ....................................28V
SWx Voltage ........................ -0.3V to V
DD
+ 0.3V
BSTx to SWx ................................. -0.3V to +6V
Voltage at All Other Pins ................ -0.3V to +6V
(2)
Continuous Power Dissipation.. (T
A
= +25°C)
………………………………………….… ...4.2W
Storage Temperature ............... -55°C to +150°C
Junction Temperature .............................. 150°C
Lead Temperature ................................... 260°C
Thermal Resistance
(4)
QFN-40 (5mmx5mm) ............. 36 ....... 8 ....
°C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of
the maximum junction temperature T
J
(MAX), the junction-to-
ambient thermal resistance
θ
JA
, and the ambient temperature
T
A
. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by P
D
(MAX) = (T
J
(MAX)-T
A
)/θ
JA
. Exceeding the maximum allowable power
dissipation produces an excessive die temperature, causing
the regulator to go into thermal shutdown. Internal thermal
shutdown circuitry protects the device from permanent
damage.
3) The device is not guaranteed to function outside of its
operating conditions.
4) Measured on JESD51-7, 4-layer PCB.
θ
JA
θ
JC
Recommended Operating Conditions
(3)
VSP Supply Voltage .......................... 5V to 26V
Operating Junction Temp. (T
J
) . -40°C to +125°C
MP6536 Rev. 1.0
2/26/2015
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
3
MP6536 - 26V, 5.5A 3-CHANNEL POWER HALF-BRIDGE
ELECTRICAL CHARACTERISTICS
V
SP
= 12V, V
SHDNB
= 5V, T
A
= +25°C, unless otherwise specified.
Parameters
VSP Operating Current
VSP Shutdown Current
Operating VSP Threshold Low
Operating VSP Threshold High
STBYB Threshold Low
STBYB Threshold High
PWM Input Bias Current
SHDNB Threshold Low
SHDNB Threshold High
PWMx Threshold Low
PWMx Threshold High
SWx On Resistance
SWx Current Limit
(5)
(5)
Symbol Condition
I
LOAD
= 0A，PWMx=0
V
SHDN
= 0V
Min
Typ
2.2
24
4
4.4
1.0
1.6
0.1
1.0
1.6
1
1.6
0.14
5.5
5.5
Max
3.5
30
4.8
1.8
1.0
1.8
1.8
Units
mA
µA
V
V
V
V
µA
V
V
V
V
Ω
A
A
3.7
0.8
0.8
0.8
V
SP
= 7V, High-Side and Low-
Side
V
PWM
= 0V, Sinking
V
PWM
= 5V, Sourcing
V
PWM
= 0 to 5V, 50% Duty Cycle
Falling Value
High-Side MOSFET On, V
BST
-
V
SW
=5.5V
V
PWM
= 0V to 5V
V
PWM
= 0V to 5V, High or Low
Pulse
I
OUT
= ±100mA
V
PWM
= 0V to 5V
V
PWM
= 5V to 0V
T
J
Rising
SWx Switching Frequency
BST Voltage UVLO
BST Current
SWx Rise/Fall Time
(5)
1
2.2
30
5
30
10
30
30
160
35
MHz
V
µA
ns
ns
ns
ns
ns
°C
°C
Minimum PWM Pulse Width
Dead Time
PWMx to SWx Delay Time Rising
PWMx to SWx Delay Time Falling
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
Notes:
5) Not production tested.
(5)
(5)
MP6536 Rev. 1.0
2/26/2015
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
4
MP6536 - 26V, 5.5A 3-CHANNEL POWER HALF-BRIDGE
PIN FUNCTIONS
Pin #
1,2
3,4,5
6,7
8,9
10
11
12
13
14
Name
SW2
VSP
SW1
LS1
BST1
NC
PWM1
PWM2
Description
Output 2.
SW2 is valid approximately 100µs after VSP goes high.
Power Supply Input.
Connect VSP to the positive side of the input power supply. Bypass
VSP to PGND as close to the IC as possible.
Output 1.
SW1 is valid approximately 100µs after VSP goes high.
Low-Side Source Connection of SW1.
Bootstrap Supply.
BST1 powers the high-side gate of the SW1 stage. Connect a
capacitor (0.1μF or greater) between BST1 and SW1.
No Connection.
NC
MUST be kept floating.
Driver Logic Input 1.
Drive PWM1 with the signal that controls SW1. Drive PWM high to
turn on the high-side switch; drive PWM low to turn on the low-side switch.
Driver Logic Input 2.
Drive PWM2 with the signal that controls SW2. Drive PWM high to
turn on the high-side switch; drive PWM low to turn on the low-side switch.
15
16
17
18
19
20
21
22, 23
24, 25
26,27,
28
29, 30
FAULTB
Fault Output.
A low output at
FAULT indicates that the MP6536 has detected an over-
temperature, over-current, or under-voltage condition. FAULTB is an open-drain output.
SHDNB
Shutdown Input
. When SHDNB is low, the IC shuts off.
Driver Logic Input 3.
Drive PWM3 with the signal that controls SW3. Drive PWM high to
PWM3
turn on the high-side switch; drive PWM low to turn on the low-side switch.
Standby Input.
Default low (internal pull-down). If driven high, the output of the driver is
STBYB
determined by PWM1/2/3. If driven low, all outputs are high impedance.
AGND
FLT3B
FLT2B
NC
PGND
NC
VSP
SW3
Analog Ground.
Fault Monitor.
For details see the “Fault Output” section. FLT3B is an open-drain output.
Fault Monitor.
For details see the “Fault Output” section. FLT2B is an open-drain output.
No Connection
. NC MUST be kept floating.
Power Ground
. Connect the exposed pad on the bottom side to ground plane.
No Connection
. NC MUST be kept floating.
Power Supply Input
. Connect VSP to the positive side of the input power supply. Bypass
VSP to PGND as close to the IC as possible.
Output 3.
SW3 is valid approximately 100µs after VSP goes high.
MP6536 Rev. 1.0
2/26/2015
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
5
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