MP8040 – HIGH CURRENT POWER HALF BRIGDE
MP8040 Rev. 1.61 www.MonolithicPower.com 2
2/10/2011 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
TM
PACKAGE REFERENCE
Part Number* Package Temperature
MP8040DN
SOIC8N
(Exposed Pad)
–40°C to +85°C
*
For Tape & Reel, add suffix –Z (eg. MP8040DN–Z)
For Lead Free, add suffix –LF (eg. MP8040DN–LF–Z)
ABSOLUTE MAXIMUM RATINGS
(1)
SP Supply Voltage (V
SP
) .............................. 28V
SW Pin Voltage ..............................
–0.3V to V
SP
SW to BS .......................................
–0.3V to +6V
Voltage at All Other Pins ...............
–0.3V to +6V
Storage Temperature ..............
–55°C to +150°C
Recommended Operating Conditions
(2)
SP Supply Voltage (V
SP
) .................. 7.5V to 24V
Peak Output Current ...................... 9A Maximum
Operating Temperature .............
–40°C to +85°C
Thermal Resistance
(3)
θ
JA
θ
JC
SOIC8N .................................. 50 ....... 8 .... °C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The device is not guaranteed to function outside of its
operating conditions.
3) Measured on approximately 1” square of 1 oz copper.
ELECTRICAL CHARACTERISTICS
V
SP
= 12V, V
SHDN
= 0V, T
A
= +25°C, unless otherwise noted.
Parameter Symbol Condition Min Typ Max Units
SP Operating Current 1.5 2.5 mA
SP Shutdown Current V
SHDN
= 2V 2.5 10 µA
SHDN, SP Threshold Low 1 V
SHDN, SP Threshold High 2 V
SHDN, SP Input Bias Current 1 µA
SW On Resistance V
SP
= 7.5V, High-Side and Low-Side 0.1 Ω
SW Current Limit
(4)
V
PWM
= 5, (Sinking) 9 A
V
PWM
= 0, (Sourcing) 9 A
SW Switching Frequency V
PWM
= 0 to 2V, 50% Duty Cycle 1.2 MHz
SW Maximum Duty Cycle
(5)
V
SP
= 7.5V, V
PWM
= 2V, C
SW
100nF,
f
SW
= 3.3kHz
99.5 %
SW Rise/Fall Time V
PWM
= 0 to 5V 20 ns
PWM Pulse Width V
PWM
= 0 to 2V, High or Low Pulse 200 ns
PWM to SW Delay Time Rising V
PWM
= 0 to 5V 70 ns
PWM to SW Delay Time
Falling
V
PWM
= 5 to 0V 70 ns
Thermal Shutdown
Temperature
(4)
T
J
Rising, Hysteresis = 20°C 160
°C
Notes:
4) Not production tested.
5) SW drives low for 1.5µs every 300µs to charge the BS to SW capacitor.
PWM
SP
SW
GND
FLT
DRV
SHDN
BS
1
2
3
4
8
7
6
5
TOP VIEW
MP8040_PD01-SOIC8N
EXPOSED PAD
ON BACKSIDE
CONNECT TO PIN 4
