MP5094 – DUAL-CHANNEL CURRENT-LIMITED SWITCH
PIN FUNCTIONS
Pin #
Name
Description
Supply voltage of channel 1. The channel 1 typical input voltage is 12V. Use a
ceramic capacitor to decouple the input rail. Connect VCC1 using a wide PCB trace.
1
VCC1
Channel 1 soft-start pin. Connect a capacitor from SS1 to ground to set the soft-start
time.
2
3
4
SS1
SS2
Channel 2 soft-start pin. Connect a capacitor from SS2 to ground to set the soft-start
time.
Supply voltage of channel 2. The channel 2 typical input voltage is 5V. Use a
ceramic capacitor to decouple the input rail. Connect VCC2 using a wide PCB trace.
VCC2
5
6
VOUT2
GND
Output terminal of channel 2.
System ground.
Enable pin for channel 1 and channel 2.
is a digital input that turns the
EN
7
8
EN
regulator on or off. Float
to turn off the regulator.
or drive
low to turn on the regulator. Drive
high
EN
EN
EN
VOUT1
Output terminal of the channel 1.
ABSOLUTE MAXIMUM RATINGS (1)
VCC1, VOUT1 ................................ -0.3V to 22V
Input voltage transient (Ch1 100ms) ............24V
VCC2, VOUT2 ................................ -0.3V to 15V
Input voltage transient (Ch2 100ms) ............16V
All other pins ...................................-0.3V to +5V
Junction temperature................-40°C to +150°C
Lead temperature...................................... 260°C
Thermal Resistance
θJA
θJC
TSOT23-8
(4)
EV5094-J-00A ................... 66 ...... 23 ...°C/W
(5)
JESD51-7 ......................... 100 ..... 55 ...°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 TJ (MAX), the junction-to-
ambient thermal resistance θJA, and the ambient temperature
TA. The maximum allowable continuous power dissipation of
EV5094-J-00A board at any ambient temperature is
calculated by PD (MAX) = (TJ (MAX)-TA)/θJA. 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. Here, the max power of the
TSOT23-8 is given by θJA on EV5094-J-00A.
(2)
Continuous power dissipation (TA = +25°C)
TSOT23-8 (3mmx3mm)............................1.89W
Recommended Operating Conditions (3)
Ch1 continuous supply voltage... 10.2V to 14.5V
Ch2 continuous supply voltage....... 4.6V to 5.5V
Operating junction temp. (TJ)....-40°C to +125°C
3) The device is not guaranteed to function outside of its
operating conditions.
4) Measured on EV5094-J-00A, 2-layer PCB, 54mmx46mm.
5) The value of θJA given in this table is only valid for comparison
with other packages and cannot be used for design purposes.
These values were calculated in accordance with JESD51-7
and simulated on a specified JEDEC board. They do not
represent the performance obtained in an actual application.
MP5094 Rev. 1.0
3/15/2019
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2019 MPS. All Rights Reserved.
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