MAX1693EUB+ Maxim Integrated Products, MAX1693EUB+ Datasheet - Page 7

• Manufacturer Part Number: MAX1693EUB+
• Description: IC USB SWITCH 1X1 10UMAX
• Manufacturer: Maxim Integrated Products

Specifications of MAX1693EUB+

• Function: USB Switch
• Circuit: 1 x 1:1
• On-state Resistance: 90 mOhm
• Voltage Supply Source: Single Supply
• Voltage - Supply, Single/dual (±): 2.7 V ~ 5.5 V
• Current - Supply: 25µA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Input Voltage: 5.5V
• No. Of Outputs: 4
• Power Dissipation Pd: 444mW
• Supply Voltage Range: 2.7V To 5.5V
• No. Of Pins: 10
• Operating Temperature Range: -40°C To +85°C
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The MAX1693/(MAX1693H)/MAX1694 P-channel MOS-
FET power switches limit output current to 0.7A min to
1.0A max. When the output current is increased
beyond the current limit (I
increases through the replica switch (I
current-limit error amplifier compares the voltage to the
internal 1.24V reference and regulates the current back
to the I
Figure 1. MAX1693 Functional Diagram
_______________Detailed Description
FAULT
2, 4, 8, 10
(ON)
ON
1, 3, 9
IN
PIN
5
6
7
LIMIT
N
.
_______________________________________________________________________________________
ON (ON)
FAULT
NAME
GND
OUT
IN
P
P
10ms
TIMER
REPLICA
AMPLIFIER
HOT
CIRCUITRY
CONTROL
ON
LIMIT
ON
Input. P-channel MOSFET source. Connect all IN pins together and bypass with a 1µF
ceramic capacitor to ground.
Switch Output. P-channel MOSFET drain. Connect all OUT pins together and bypass with a
0.1µF capacitor to ground.
Active-Low (High) Switch On Input. A logic low (high) turns the switch on.
Ground
Fault-Indicator Output. This open-drain output goes low when the device is in thermal shut-
down, undervoltage lockout, or on a sustained (>10ms) current-limit condition. For the
MAX1694 only, this output latches low when asserted, and the power switch is turned off
until the latch is reset.
CURRENT-LIMIT
AMPLIFIER
), the current also
1.24V
(MAX1693H)
MAX1693
OUT
P
USB Current-Limited Switches
/6500). The
GND
OUT
These switches are not bidirectional; therefore, the
input voltage must be higher than the output voltage.
The MAX1693/(MAX1693H)/MAX1694 are foldback
short circuit-protected switches. In the event of an out-
put short-circuit or current-overload condition, the cur-
rent through the switch is foldback-current limited to
500mA continuous for the MAX1693. For the MAX1694,
if the short circuit lasts longer than 10ms, the switch is
latched off.
The MAX1693/(MAX1693H)/MAX1694 feature thermal
shutdown. The switch turns off and the FAULT output
goes low immediately (no fault blanking) when the junc-
tion temperature exceeds +165°C. The MAX1694
remains latched with the switch off and the FAULT out-
put low. When the MAX1693/(MAX1693H) cools 20°C,
the switch turns back on. If the fault short-circuit condi-
tion is not removed, the switch will cycle on and off,
resulting in a pulsed output.
The MAX1693/(MAX1693H)/MAX1694 provide a fault
output (FAULT). A 100kΩ pullup resistor from FAULT to
IN provides a logic control signal. This open-drain out-
put goes low when any of the following conditions
occur:
• The input voltage is below the undervoltage-lockout
• The die temperature exceeds the thermal shutdown
• The device is in current limit and the 10ms fault-
(UVLO) threshold.
temperature limit of +165°C.
blanking period is exceeded.
with Fault Blanking
FUNCTION
Continuous Short-Circuit Protection
Pin Description
Thermal Shutdown
FAULT Indicator
7