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PDF DS1336 Data sheet ( Hoja de datos )
| Número de pieza | DS1336 | |
| Descripción | Afterburner Chip | |
| Fabricantes | Dallas Semiconducotr | |
| Logotipo |  |
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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
PF
IN5
IN2
IN4
VBATIN
VBAT02
OUT4
1
2
3
4
5
6
7
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
PF
IN5
IN2
IN4
VBATIN
1
2
3
4
5
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
1 page  
ABSOLUTE MAXIMUM RATINGS*
Voltage on Any Pin Relative to Ground
Operating Temperature
Storage Temperature
Soldering Temperature
-0.3V to +7.0V
0°C to 70°C
-55°C to +125°C
260°C for 10 seconds
DS1336
∗ This is a stress rating only and functional operation of the device at these or any other conditions
above those indicated in the operation sections of this specification is not implied. Exposure to
absolute maximum rating conditions for extended periods of time may affect reliability.
DC OPERATING CONDITIONS
PARAMETER
SYMBOL
Supply Voltage
Supply Current
Supply Current
Input Low Voltage
Input High Voltage
Current Output
VCC=VCC1, PF=0, PF =1
Current Output
VCC=0, PF=1, PF =0
Current, Forward Bias of
VCC5 Diode
Off Impedance
VCC1
ICC1
ICC2
VIL
VIH
ICCO
IBAT01-2
IFB
ROFF1
Off Impedance
ROFF2
On Impedance
RON1
On Impedance
RON2
AC CHARACTERISTICS
PARAMETER
SYMBOL
Propagation Delay
Switch Delay Power-fail
Switch Delay Power-on
tPD
tPF
tPON
Capacitance PF, PF
CI
MIN
3.0
2.0
(tA = 0°C to 70°C; VCC = 5V ± 10%)
TYP MAX UNITS NOTES
5.0 5.5
V
1
0.25 1.0 mA
50 100 nA
3
0.8 V
1
VCC V
1
300 mA
2
4.0 mA
4
5.0
10
MIN
20 mA
MΩ
MΩ
0.7 Ω
50 Ω
5
6
7
8
(tA = 0°C to 70°C; VCC = 5V ± 10%)
TYP MAX UNITS NOTES
10 ns 9
100 ns
100 ns
7 pF
NOTES:
1. All voltages referenced to ground.
2. ICCO with a voltage drop of 0.2 volts from any VCCO output.
3. VCC=0, VBATIN=3.0 volts.
4. VBAT01 with a voltage drop of 1.0 volts.
5. ROFF1 applies to VCCO1, 2, 3, 4.
6. ROFF2 applies to VBATO1, 2.
5 of 6
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet DS1336.PDF ] | |
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