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參數(shù)資料
| 型號： | CA3273 |
| 廠商： | INTERSIL CORP |
| 元件分類： | 外設(shè)及接口 |
| 英文描述： | High-Side Driver |
| 中文描述： | 0.6 A BUF OR INV BASED PRPHL DRVR, PSIP3 |
| 封裝： | MODIFIED TO-202, SIP-3 |
| 文件頁數(shù)： | 3/4頁 |
| 文件大?。?/td> | 24K |
| 代理商： | CA3273 |
3-5
CA3273
FIGURE 1. FUNCTIONAL BLOCK DIAGRAM OF CA3273
FIGURE 2. TYPICAL APPLICATION WITH ZENER DIODE FOR
OVER-VOLTAGE PROTECTION WITH INDUCTIVE
LOAD SWITCHING. V
Z
SHOULD BE LESS THAN
35V. WHEN CURRENT IS SWITCHED OFF IN THE
OUTPUT LOAD (L), THE INDUCTIVE KICK PULSE
GOES NEGATIVE. THE CLAMPED CLAMP LEVEL
OF THE NEGATIVE GOING PULSE IS V
CC
- V
Z
.
FIGURE 3. OPTIONAL RANGE SHIFTING OF THE V
CC
INPUT
VOLTAGE USING A ZENER DIODE TO OFFSET
THE V
SW
CONTROL PIN. (I.E.,THE OVER-VOLT-
AGE SHUTDOWN THRESHOLD WILL BE IN-
CREASED TO V
CC(THD)
+ V
Z
AND THE MINIMUM
V
CC
OPERATING VOLTAGE IS V
Z
+ 4V).
FIGURE 4. DISSIPATION DERATING CURVES
FIGURE 5. TYPICAL LOADS
THERMAL
LIMIT
CURRENT
LIMIT
OVER-VOLTAGE
SHUTDOWN
OUTPUT DEVICE
BASE DRIVE
CONTROL CIRCUIT
2
1
R
S
V
CC
3
V
O
OUTPUT
INPUT
V
SW
CONTROL INPUT
BANDGAP
VOLTAGE/CURRENT
REFERENCE
OUTPUT PASS
TRANSISTOR
CA3273
V
SW
V
O
V
CC
+4 TO +24V
1K
2N5320
OR EQUIVALENT
CONTROL
INPUT
(SUPPLY INPUT)
ON
OFF
V
Z
L
40
CA3273
V
SW
V
CC
1K
2N5320
OR EQUIVALENT
CONTROL
INPUT
ON
OFF
V
O
V
Z
R
L
1
2
0
-50
-25
0
25
50
75
100
125
150
TEMPERATURE (
o
C)
D
(WITHOUT HEAT SINK)
DERATING 70
o
C/W
RESISTIVE
LAMP
SOLENOID
RELAY
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|---|---|
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