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參數(shù)資料
| 型號(hào)： | CA3292AQ |
| 廠商： | INTERSIL CORP |
| 元件分類： | 外設(shè)及接口 |
| 英文描述： | Quad-Gated Inverting Power Drivers with Fault Mode Diagnostic Flag Output |
| 中文描述： | 0.7 A 4 CHANNEL, BUF OR INV BASED PRPHL DRVR, PQCC28 |
| 封裝： | PLASTIC, MS-018AB, LCC-28 |
| 文件頁(yè)數(shù)： | 2/10頁(yè) |
| 文件大小： | 91K |
| 代理商： | CA3292AQ |
2
Block Diagram of the CA3272A
Block Diagram of the CA3292A
(1 of 4 Outputs Shown with Expanded Fault Logic)
NOTE: The CA3292A is identical to the CA3272A except for the
collector-to-base Zener diode on each low side power output driver
(shown here as Z
A
). The Zener diode clamp is used as an over-
voltage clamp to protect the output when switching inductive loads.
When the output voltage exceeds the Zener threshold, Q
A
conducts
to suppress further increase in output voltage. The fault sense and
fault flag logic circuits are the same in the CA3272A and CA3292A.
F
T
LIM
I
LIM
OUT A
Q
A
0.02
F
T
LIM
I
LIM
OUT D
FAULT
IN A
IN B
IN C
IN D
ENABLE
V
CC
Q
D
0.02
F
T
LIM
I
LIM
OUT C
Q
C
0.02
F
T
LIM
I
LIM
OUT B
Q
B
0.02
TRUTH TABLE
ENABLE
IN
OUT
H
H
L
H
L
H
L
X
H
H = High, L = Low, X = Don’t Care
I
LIM
T
LIM
FAULT INPUT
FROM B, C, D
CHANNELS
FAULT
FLAG LOGIC
FAULT SENSE
CHANNEL A
4V
Z
A
Q
A
OUT A
FAULT
Q
F
0.02
CHANNEL A
1 OF 4
OUTPUTS
IN A
ENABLE
ENABLE LINE
TO B, C AND D
INPUTS AND
FAULT OUTPUT
CA3272A, CA3292A
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