MP8042 –24V, 5A DUAL CHANNEL POWER HALF-BRIDGE
MP8042 Rev. 0.91 www.MonolithicPower.com 2
5/5/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2010 MPS. All Rights Reserved.
ORDERING INFORMATION
Part Number* Package Top Marking Free Air Temperature (T
A
)
MP8042DF
TSSOP20F
MP8042DF
–40°C to +85°C
* For Tape & Reel, add suffix –Z (e.g. MP8042DF–Z).
For RoHS compliant packaging, add suffix –LF (e.g. MP8042DF–LF–Z)
PACKAGE REFERENCE
NC
AGND1
PWM1
STBY
PWM2
FAULT
SHDN
AGND2
NC
VDR2
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
VDR1
BST1
PGND1
OUT1
VDD1
NC
VDD2
OUT2
PGND2
BST2
TOP VIEW
EXPOSED PAD
ABSOLUTE MAXIMUM RATINGS
(1)
VDD1/2 Supply Voltage ............................... 26V
OUT1/2 Pin Voltage............ –0.3V to V
DD
+ 0.3V
OUT1/2 to BST1/2 .........................–0.3V to +6V
Voltage at All Other Pins................–0.3V to +6V
Continuous Power Dissipation (T
A
= +25°C)
(2)
………………………………………………....3.1W
Storage Temperature.............. –55°C to +150°C
Junction Temperature.............................150°C
Lead Temperature .................................260°C
Recommended Operating Conditions
(3)
VDD1/2 Supply Voltage ...................7.5V to 24V
Peak Output Current......................5A Maximum
Operating Junct. Temp (T
J
)...... -40°C to +125°C
Thermal Resistance
(4)
θ
JA
θ
JC
TSSOP20F..............................40 ....... 6.... °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
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
)/
JA
. Exceeding the maximum allowable powe
dissipation will cause excessive die temperature, and the
regulator will 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 approximately 1” square of 1 oz copper.
