SLIN-12F2A BEL [Bel Fuse Inc.], SLIN-12F2A Datasheet - Page 14

• Manufacturer Part Number: SLIN-12F2A
• Description: NON-ISOLATED DC/DC CONVERTERS
• Manufacturer: BEL [Bel Fuse Inc.]

Fig. A
Over Current Protection
To provide protection in a fault (output overload) condition, the unit is equipped with internal current-limiting
circuitry and can endure current limiting continuously. At the point of current-limit inception, the unit enters hiccup
mode. The unit operates normally once the output current is brought back into its specified range.
Over Temperature Protection
To provide protection in a fault condition, the unit is equipped with a thermal shutdown circuit. The unit will
shutdown if the over temperature threshold of 130°C is exceeded at the thermal reference point Tref. The thermal
shutdown is not intended as a guarantee that the unit will survive temperatures beyond its rating. Once the unit
goes into thermal shutdown it will then wait to cool before attempting to restart.
Input Under-voltage Lockout
At input voltages below the input under voltage lockout limit, the module operation is disabled. The module will
begin to operate at an input voltage above the under voltage lockout turn-on threshold.
December 2, 2010
VIN+
ON/OFF
Q1
GND
NON-ISOLATED DC/DC CONVERTERS
2.4 Vdc - 5.5 Vdc Input, 0.6 Vdc - 3.63 Vdc /12 A Output
I
V
ON/OFF
ON/OFF
+
_
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] •
20K
MODULE
20K
Q2
470
PWM Enable
23.7K
Bel Power Inc., a subsidiary of Bel Fuse Inc.
ON/OFF
VIN+
Fig. B
GND
Rpullup
V
Q1
I
ON/OFF
ON/OFF
+
_
20K
MODULE
R2
PWM Enable
www.belfuse.com
60.4K
14