MAX1564EVKIT Maxim Integrated, MAX1564EVKIT Datasheet - Page 2

• Manufacturer Part Number: MAX1564EVKIT
• Description: Power Switch ICs - USB Evaluation Kit for MAX1564
• Manufacturer: Maxim Integrated

Specifications of MAX1564EVKIT

• Supply Voltage - Min: 2.75 V
• Supply Voltage - Max: 5.5 V
• Number Of Switches: Triple
• Supply Current: 1.8 V

The MAX1564 provides an independent open-drain
fault output (FLT_) for each switch. In the MAX1564 EV
kit, the FLT_ outputs are connected to IN_ through a
100kΩ pullup resistor. FLT_ asserts low when any of the
following conditions occur:
•
•
•
•
The FLT_ output goes high impedance after a 20ms
delay once the fault condition is removed. Refer to the
MAX1564 IC data sheet for more details on fault protec-
tion and fault blanking.
SEL sets the active polarity of the logic inputs of the
MAX1564. R5 and R6 are available to set the input to
SEL. R5 comes shorted to connect SEL to VIN. To con-
nect SEL to GND, cut the short on R5 and short R6.
JU1, JU2, and JU3 are available for ON_ control
1). Connect a shunt across JU1 to connect ONA to VIN,
connect a shunt across JU2 to connect ONB to VIN, and
connect a shunt across JU3 to connect ONC to VIN.
MAX1564 Evaluation Kit
2
The input voltage is below the UVLO threshold.
The switch junction temperature exceeds the
+160°C thermal-shutdown temperature limit.
The switch is in current-limit or short-circuit current-
limit mode after the fault-blanking period (20ms)
expires.
The reverse current condition exists after the fault-
blanking period expires.
_______________________________________________________________________________________
Shutdown (SEL, ONA, ONB, ONC)
Detailed Description
FLTA , FLTB, and FLTC
(Table
Remove the shunts to connect the respective ON_ to
GND. With the default setting for SEL (R5 shorted),
installing the shunt enables the respective OUT_. The out-
put of a disabled switch enters a high-impedance state.
The current-limit for the MAX1564 is user programma-
ble using the SETI input. Connect a resistor from SETI
to GND (R1) to set the current limit. The value for R1 is
calculated as:
R1 must be between 26kΩ and 60kΩ.
When evaluating the MAX1564 EV kit on the bench,
take care to use short input leads (< 6in). The induc-
tance of longer leads can cause oscillations during an
overload or short circuit that exceed the absolute maxi-
mum rating (6V) on the input and can damage the IC. If
short leads cannot be used, add a bulk capacitor to the
input to eliminate these voltage spikes. This capacitor
is not necessary in the final application.
Table 1. Jumper JU1, JU2, JU3 Functions
(ON_ Control)
Note:
ing these component suppliers.
Taiyo Yuden
TDK
Vishay
SHUNT LOCATION
SUPPLIER
Indicate that you are using the MAX1564 when contact-
On
Off
Component Suppliers
I
LIMIT
COMPONENT
Capacitors
Capacitors
Resistors
Input Supply Considerations
= 1.37A x 26kΩ / R1
Connected to VIN Normal operation
Connect to GND
Setting the Current Limit
ON_ PIN
www.t-yuden.com
www.component.tdk.com
www.vishay.com
Jumper Settings
Shutdown mode
WEBSITE
OPERATION