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CA3277 Datasheet(PDF) 2 Page - Intersil Corporation

Part # CA3277
Description  Dual 5V Regulator with Serial Data Buffer Interface for Microcontroller Applications
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Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

CA3277 Datasheet(HTML) 2 Page - Intersil Corporation

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7-40
Specifications CA3277
Absolute Maximum Ratings
Thermal Information
Max. BATT, IGN IN Input Voltage (Note1) . . . . . . . . . . . . . . .
±26V
Max. Operating Voltage; BATT, IGN IN . . . . . . . VBATT(SD) (~20.5V)
Max. Positive Voltages: (For Negative Voltages, Note 2)
ENABLE Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VBATT
DATA IN Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VBATT
CUR OUT, Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VBATT
RESET, Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VBATT
Max. Operating Load Current, OUT1 . . . . . . . . . . . . . . . . . . . 100mA
Max. Operating Load Current, OUT2 . . . . . . . . . . . . . . . . . . . 100mA
Max. Current Mult. Load Currents:
Min. Load Resistance, CUR OUT . . 225
Ω to BATT (75mA max)
Min. Load Resistance, CUR IN . . . . . . 1K
Ω to GND (-5mA max)
Max. Load Current OUT1, OUT2 (Short Duration) . . . Self-Limiting
Max. Plus/Minus Load Currents: (Note 3)
IGN OUT Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Self-Limiting
DATA OUT Output . . . . . . . . . . . . . . . . . . . . . . . . . . .Self-Limiting
RESET Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Self-Limiting
Thermal Resistance
θ
JA
θ
JL
Plastic DIP Package . . . . . . . . . . . . . . . .
60oC/W
12oC/W
(Temp. meas. on center lead next to case)
Power Dissipation, PD (Note 4):
Up to +60oC (Free Air). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5W
Above +60oC: . . . . . . . . . . . . . . . . Derate Linearly at 16.6mW/oC
Up to +85oC w/heat sink (PC Board): . . . . . . . . . . . . . . . . . 1.6 W
Operating Temperature Range . . . . . . . . . . . . . . . . . -40oC to +85oC
Storage Temperature Range. . . . . . . . . . . . . . . . . . -55oC to +150oC
Max. Junction Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . +150oC
Lead Temperature (During Solder) . . . . . . . . . . . . . . . . . . . . +265oC
1/16
± 1/32” from case, 10s max
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
Electrical Specifications TA = -40oC to +85oC, VBATT = 13.5V, ENABLE ON (VEN = 3.5V), IGN IN connected to BATT, OUT1 and
OUT2 bypassed with 20
µF to GND, DATA IN connected through 250Ω to BATT, LOADS: OUT1 = 50mA,
OUT2 = 80mA; Unless Otherwise Specified (Refer to Figure 4 Test Circuit)
PARAMETERS
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
REGULATOR OUTPUT1
Output Voltage
VOUT1
VBATT = 9V to 16V
4.75
5
5.25
V
Dropout Voltage (Note 5)
VDO1
VBATT = 4.75V
4.15
4.6
-
V
Line Reg
VBATT = 6.2V to 16V
-
9
40
mV
Load Reg
ILOAD = 0.5mA to 50mA
-
30
60
mV
Current Limiting
-
170
250
mA
Low Voltage Shutdown
Ramp VBATT Down Until OUT1 drops (PNP Driv-
er Cutoff)
-
3.5
-
V
REGULATOR OUTPUT2
Output Voltage
VOUT2
VBATT = 9V to 16V
4.75
5
5.25
V
Dropout Voltage (Note 5)
VDO2
VBATT = 5.6V
4.6
5
-
V
Line Reg
VBATT = 6.2V to 16V
-
7.5
40
mV
Load Reg
ILOAD = 0.5mA to 80mA
-
35
60
mV
Current Limiting
-
190
250
mA
ENABLE Input Current
IEN
VEN = 5V
-
50
150
µA
ENABLE Input Sw. Thd.
VEN(THD)
Ramp ENABLE Input Up Until OUT2 is
Switched ON
-
1.2
-
V
CURRENT MULTIPLIER
Current Mult. Gain, (ICOUT/ICIN)ICIN = -200µA
80
100
-
Gain
Ratio
Current Mult. Output Sat.
VCOUT(SAT)
ICIN = -200µA, CUR OUT Load = 1KΩ to VBATT
-
0.3
1
V
Current Mult., Max. Drive Cur.
ICOUT(MAX)
ICIN = -700µA35
50
-
mA
RESET
Reset, (RST) Threshold
Ramp VBATT Down, Measure VBATT when
RESET (VRST) goes low
3.8
4.2
4.5
V
Reset Delay Time (Note 6)
tRST
CRST Cap. = 0.47
µF, V
BATT = 6.8V
RESET Load = 5K
Ω to OUT1
50
150
250
ms
RESET Out High
VOH(RST)
47K
Ω to OUT1
4
-
-
V
RESET Low
VOL(RST)
VBATT = 3.75V, RST 47KΩ to OUT1
-
-
0.2
V
RESET Output Sink Current
IOL
CRST to GND, VBATT = 6.8V
-
8
-
mA


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