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參數(shù)資料
| 型號(hào)： | TDA7278 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP44 |
| 封裝： | 10 X 10 MM, PLASTIC, QFP-44 |
| 文件頁(yè)數(shù)： | 1/15頁(yè) |
| 文件大小： | 276K |
| 代理商： | TDA7278 |
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TDA7278
HIGH-EFFICIENCY CD ACTUATOR DRIVER
WIDE OPERATIVE SUPPLY RANGE (1.6 to
5V) LOW VOLTAGE OPERATION CAPABIL-
ITY
4 LOAD DRIVING VOLTAGES PWM REGU-
LATED (STEP DOWN FROM BATTERY)
LOW ON RESISTANCE H BRIDGES
(2 x 1.6
MAX + 2 x 2.5 MAX) FOR:
– FOCUS AND TRACKING ACTUATORS
– SLEDGE AND SPINDLE MOTORS
SYNCHRONIZABLE SAWTOOTH OSCILLATOR
CONFIGURABLE DC/DC CONVERTER FOR
ADJUSTABLE MAIN POWER SUPPLY, WITH
LOW ON RESISTANCE (0.4
MAX) SWITCH
GENERAL ENABLE INPUT
ADJUSTABLE WATCH DOG AND DELAYED
POWER ON RESET FUNCTIONS
ADJUSTABLE COMPARATORS FOR BAT-
TERY LOW AND BATTERY EMPTY DETEC-
TION
September 2003
PQFP44
1
2
3
5
6
4
7
8
9
10
17
11
18
19
20
21
22
44
43
42
41
39
40
38
37
36
35
34
28
27
26
24
23
25
33
32
31
29
30
GND
FLIN 1
VBAT
H OUT 2A
H IN 2
FLIN 2
VHIGH
OUT
H OUT 1B
H OUT 1A
H IN 1
SSCAP
INP
IRC
VCPU
OUT2
OUT1
VBG
RESET
CRES
WDINP
STCAP
H
OUT
2B
ERROR
1
ERROR
2
BEMP
VCON
BLOW
VREF(2)
VREF(1)
ERROR
4
ERROR
3
H
OUT
4B
GND
H OUT 3A
H IN 3
ENABLE
SYNC
H OUT 3B
H IN 4
H OUT 4A
FLIN 4
FLIN 3
VBAT
D94AU112A
12
13
14
15
16
PIN CONNECTION
1/15
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