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CA3277 数据表(PDF) 7 Page - Intersil Corporation

部件名 CA3277
功能描述  Dual 5V Regulator with Serial Data Buffer Interface for Microcontroller Applications
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制造商  INTERSIL [Intersil Corporation]
网页  http://www.intersil.com/cda/home
标志 INTERSIL - Intersil Corporation

CA3277 数据表(HTML) 7 Page - Intersil Corporation

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CA3277
FIGURE 4. CHARACTERISTIC EVALUATION AND TEST CIRCUIT
CA3277
IGN IN
BATT
DATA IN
CUR IN
DATA
CRST
RST
OUT2
GND
OUT1
47K
0 .01
0.47
20
µF
20
µF
0.047
0.047
OUT
ENABLE
IGN
(OUT2)
RL2
VEN
VIGN IN
250
OUT
VDATA IN
IEN
VIGN OUT
VDATA OUT
ICIN
VRST
VCIN
CRST
1
16
3
14
15
2
8
7
6
11
10
GND PINS 4,5,12,13
CUR OUT
A
VBATT
1K
250
ICOUT
VCOUT
9
VOUT2
VOUT2
RL2
IOUT2 =
(LOAD)
VOUT1
VOUT1
RL1
IOUT1 =
RL1
(LOAD)
A
FIGURE 4A. TYPICAL CHARACTERISTIC CURVES FOR OUT1
AND OUT2 OUTPUT VOLTAGE vs BATT VOLTAGE
INPUT
FIGURE 4B. TYPICAL CHARACTERISTICS CURVES FOR NO-
LOAD BATT INPUT CURRENT vs BATT INPUT
VOLTAGE FOR OFF STATE IDLE CURRENTS
FIGURE 4C. TYPICAL IGN IN CURRENT vs IGN IN INPUT VOLTAGE
FIGURE 4D. TYPICAL CURRENT MULTIPLIER CURRENT GAIN
CHARACTERISTIC
5
4
3
2
1
0
2) VOUT2 vs VBATT
1) VOUT1 vs VBATT
ENABLE HIGH, IGN IN TO BATT
RL1 = 100Ω, RL2 = 62Ω
1
2
1 AND 2
TA = +25
oC
INPUT VOLTAGE (V)
0
5
15
20
10
8
6
4
2
0
12
510
15
INPUT VOLTAGE (V)
20
14
16
OVER-VOLTAGE
LOW VOLTAGE
NORMAL
2.5
22.5
1) IGN IN TO BATT, ENABLE HIGH,
2) IGN IN AND ENABLE TO GND
TA = +25
oC, NO LOAD
DATA IN THROUGH 250
Ω TO BATT
DROPOUT
SHUTDOWN
1
2
OPERATING RANGE
0510
15
IGN IN INPUT VOLTAGE (V)
0.5
0.4
0.3
0.2
0.1
0
20
4) BATT TO 11V, ENABLE TO GND
3) BATT TO 16V, ENABLE TO GND
2) BATT TO 11V, ENABLE TO OUT1
1) BATT TO 16V, ENABLE TO OUT1
TA = +25
oC, R
L1 = 100Ω, RL2 = 62Ω
1
2
3
4
0
0.1
0.2
0.3
CUR IN (PIN 10) - INPUT (SOURCED) CURRENT (mA)
25
20
15
10
5
0
30
35
0.4
TEST NOTE:
MEASUREMENTS MADE
AS VOLTAGE ON 50
Ω LOAD
FROM CUR OUT TO 5V
TA = +25
oC, V
BATT = 13.5V
CUR OUT THROUGH 250
Ω TO BATT
ENABLE AND IGN IN TO BATT


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