ca3277 Intersil Corporation, ca3277 Datasheet - Page 7

• Manufacturer Part Number: ca3277
• Description: Dual 5v Regulator With Serial Data Buffer Interface For Microcontroller Applications
• Manufacturer: Intersil Corporation

FIGURE 4A. TYPICAL CHARACTERISTIC CURVES FOR OUT1
FIGURE 4C. TYPICAL IGN IN CURRENT vs IGN IN INPUT VOLTAGE
250
0.5
0.4
0.3
0.2
0.1
5
4
3
2
1
0
V
0
0
BATT
0
1) BATT TO 16V, ENABLE TO OUT1
2) BATT TO 11V, ENABLE TO OUT1
3) BATT TO 16V, ENABLE TO GND
4) BATT TO 11V, ENABLE TO GND
T
A
A
= +25
I
250
1
2
3
4
COUT
AND OUT2 OUTPUT VOLTAGE vs BATT VOLTAGE
INPUT
o
I
CIN
C, R
2
1
1K
5
5
L1
V
= 100 , R
IGN IN INPUT VOLTAGE (V)
V
DATA IN
V
IGN IN
COUT
V
T
R
ENABLE HIGH, IGN IN TO BATT
1) V
2) V
INPUT VOLTAGE (V)
A
CIN
L1
= +25
= 100 , R
OUT1
OUT2
L2
1
BATT
16
IGN IN
9
CUR OUT
3
DATA IN
10
CUR IN
FIGURE 4. CHARACTERISTIC EVALUATION AND TEST CIRCUIT
1 AND 2
o
= 62
C
10
vs V
vs V
BATT
BATT
L2
= 62
15
V
GND PINS 4,5,12,13
IGN OUT
15
OUT
IGN
11
CA3277
20
CA3277
20
V
7-45
ENABLE
DATA OUT
(OUT2)
DATA
V
OUT
14
EN
6
LOW VOLTAGE
FIGURE 4B. TYPICAL CHARACTERISTICS CURVES FOR NO-
FIGURE 4D. TYPICAL CURRENT MULTIPLIER CURRENT GAIN
DROPOUT
16
14
12
10
8
6
4
2
0
2.5
35
30
25
20
15
10
5
0
CRST
OUT1
OUT2
0
GND
CUR IN (PIN 10) - INPUT (SOURCED) CURRENT (mA)
RST
T
CUR OUT THROUGH 250 TO BATT
ENABLE AND IGN IN TO BATT
5
LOAD BATT INPUT CURRENT vs BATT INPUT
VOLTAGE FOR OFF STATE IDLE CURRENTS
CHARACTERISTIC
A
15
2
8
7
= +25
I
EN
V
o
RST
T
1) IGN IN TO BATT, ENABLE HIGH,
2) IGN IN AND ENABLE TO GND
A
C, V
A
OPERATING RANGE
0.047
0.1
= +25
DATA IN THROUGH 250 TO BATT
0.047
INPUT VOLTAGE (V)
47K
10
BATT
0 .01
C
0.47
NORMAL
RST
o
C, NO LOAD
= 13.5V
TEST NOTE:
MEASUREMENTS MADE
AS VOLTAGE ON 50 LOAD
FROM CUR OUT TO 5V
0.2
20 F
20 F
15
V
V
OUT2
OUT1
2
0.3
RL1
(LOAD)
RL2
(LOAD)
20
I
I
OVER-VOLTAGE
SHUTDOWN
OUT1
OUT2
1
22.5
=
=
V
V
R
R
0.4
OUT1
OUT2
L1
L2