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參數(shù)資料
| 型號(hào)： | CA3277E |
| 廠商： | INTERSIL CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Dual 5V Regulator with Serial Data Buffer Interface for Microcontroller Applications |
| 中文描述： | DUAL OUTPUT, FIXED POSITIVE REGULATOR, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數(shù)： | 2/8頁 |
| 文件大?。?/td> | 75K |
| 代理商： | CA3277E |
7-40
Specifications CA3277
Absolute Maximum Ratings
Thermal Information
Max. BATT, IGN IN Input Voltage (Note1). . . . . . . . . . . . . . .
Max. Operating Voltage; BATT, IGN IN . . . . . . . V
BATT(SD)
(~20.5V)
Max. Positive Voltages: (For Negative Voltages, Note 2)
ENABLE Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .V
BATT
DATA IN Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .V
BATT
CUR OUT, Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .V
BATT
RESET, Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .V
BATT
Max. Operating Load Current, OUT1 . . . . . . . . . . . . . . . . . . .100mA
Max. Operating Load Current, OUT2 . . . . . . . . . . . . . . . . . . .100mA
Max. Current Mult. Load Currents:
Min. Load Resistance, CUR OUT . . 225
to BATT (75mA max)
Min. Load Resistance, CUR IN . . . . . . 1K
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
±
26V
Thermal Resistance
Plastic DIP Package . . . . . . . . . . . . . . . .
(Temp. meas. on center lead next to case)
Power Dissipation, P
D
(Note 4):
Up to +60
o
C (Free Air). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5W
Above +60
o
C: . . . . . . . . . . . . . . . . Derate Linearly at 16.6mW/
o
C
Up to +85
o
C w/heat sink (PC Board): . . . . . . . . . . . . . . . . . 1.6 W
Operating Temperature Range . . . . . . . . . . . . . . . . .-40
o
C to +85
o
C
Storage Temperature Range. . . . . . . . . . . . . . . . . .-55
o
C to +150
o
C
Max. Junction Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . +150
o
C
Lead Temperature (During Solder) . . . . . . . . . . . . . . . . . . . . +265
o
C
1/16
±
1/32” from case, 10s max
θ
JA
θ
JL
60
o
C/W
12
o
C/W
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
T
A
= -40
o
C to +85
o
C, V
BATT
= 13.5V, ENABLE ON (V
EN
= 3.5V), IGN IN connected to BATT, OUT1 and
OUT2 bypassed with 20
μ
F to GND, DATA IN connected through 250
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
V
OUT1
V
DO1
V
BATT
= 9V to 16V
V
BATT
= 4.75V
V
BATT
= 6.2V to 16V
I
LOAD
= 0.5mA to 50mA
4.75
5
5.25
V
Dropout Voltage (Note 5)
4.15
4.6
-
V
Line Reg
-
9
40
mV
Load Reg
-
30
60
mV
Current Limiting
-
170
250
mA
Low Voltage Shutdown
Ramp V
BATT
Down Until OUT1 drops (PNP Driv-
er Cutoff)
-
3.5
-
V
REGULATOR OUTPUT2
Output Voltage
V
OUT2
V
DO2
V
BATT
= 9V to 16V
V
BATT
= 5.6V
V
BATT
= 6.2V to 16V
I
LOAD
= 0.5mA to 80mA
4.75
5
5.25
V
Dropout Voltage (Note 5)
4.6
5
-
V
Line Reg
-
7.5
40
mV
Load Reg
-
35
60
mV
Current Limiting
-
190
250
mA
ENABLE Input Current
I
EN
V
EN
= 5V
Ramp ENABLE Input Up Until OUT2 is
Switched ON
-
50
150
μ
A
ENABLE Input Sw. Thd.
V
EN(THD)
-
1.2
-
V
CURRENT MULTIPLIER
Current Mult. Gain, (I
COUT
/I
CIN
)
I
CIN
= -200
μ
A
80
100
-
Gain
Ratio
Current Mult. Output Sat.
V
COUT(SAT)
I
COUT(MAX)
I
CIN
= -200
μ
A, CUR OUT Load = 1K
to V
BATT
I
CIN
= -700
μ
A
-
0.3
1
V
Current Mult., Max. Drive Cur.
35
50
-
mA
RESET
Reset, (RST) Threshold
Ramp V
BATT
Down, Measure V
BATT
when
RESET (V
RST
) goes low
CRST Cap. = 0.47
μ
F, V
BATT
= 6.8V
RESET Load = 5K
to OUT1
47K
to OUT1
V
BATT
= 3.75V, RST 47K
to OUT1
CRST to GND, V
BATT
= 6.8V
3.8
4.2
4.5
V
Reset Delay Time (Note 6)
t
RST
50
150
250
ms
RESET Out High
V
OH(RST)
V
OL(RST)
I
OL
4
-
-
V
RESET Low
-
-
0.2
V
RESET Output Sink Current
-
8
-
mA
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