DS1336S Ver la hoja de datos (PDF) - Dallas Semiconductor -> Maxim Integrated
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DS1336S Datasheet PDF : 6 Pages
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www.dalsemi.com
DS1336
Afterburner Chip
FEATURES
§ Provides power switching of up to 1.5 amps at
voltages between 3.0 and 5.0 volts
§ Five separate power switches
§ Selectable battery switches for use with
§ battery-backed systems
§ Very low on impedance of 0.7O
§ Battery backup current of 4 mA
§ Diode-isolated battery path
§ Available in 16-pin DIP or 16-pin SOIC
surface
§ mount package
§ Low voltage drop battery path
§ Connects directly to a variety of Dallas
Semiconductor devices, adding increased
switching capability for large battery backup
current applications
PIN ASSIGNMENT
OUT5 1
PF 2
IN5 3
IN2 4
IN4 5
VBATIN 6
VBAT02 7
OUT4 8
16 VCC/IN1
15 PF
14 GND
13 OUT1
12 OUT2
11 OUT3
10 VBAT01
9 IN3
16-Pin DIP (300-mil)
See Mach. Drawings
Section
OUT5 1
PF 2
IN5 3
IN2 4
IN4 5
VBATIN 6
16 VCC/IN1
15 PF
14 GND
13 OUT1
12 OUT2
11 OUT3
VBAT02 7
OUT4 8
10 VBAT01
9 IN3
16-Pin DIP SOIC (300-mil)
See Mach. Drawings
Section
PIN DESCRIPTION
VCC/IN1
IN2 - IN5
OUT1 - 5
VBATIN
VBAT01
VBAT02
- +5V Input and Input 1
- Inputs 2 - 5
- Outputs 1 - 5
- External Battery Input
- Diode Protected Battery Output
- Low Voltage Drop Battery
Output
PF, PF
GND
- Power-fail Inputs
- Ground
DESCRIPTION
The DS1336 Afterburner Chip is designed to provide power switching between a primary power supply
(VCC) and a backup battery power supply (VBAT). Five VCC and two battery paths are provided which can
be used individually or in parallel to supply uninterrupted power in applications such as SRAM networks.
When used with one of the Dallas power monitoring devices listed in Table 1, the DS1336 allows a load
to be switched from its main power supply VCC to a battery backup supply when VCC falls out of
tolerance. A user may selectively tie together any combination of the output pins to provide the desired
high current supply, providing up to 300 mA per OUT pin or a maximum of 1.5A. Depending upon the
user’s backup supply load requirements, either of the VBAT outputs may be tied to the OUT pins to supply
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050699
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