參數(shù)資料
型號(hào): LB1941
廠商: Sanyo Electric Co.,Ltd.
英文描述: Constant Current Forward/Reverse Driver IC for Digital Cameras
中文描述: 恒流正轉(zhuǎn)/反轉(zhuǎn)的數(shù)碼相機(jī)驅(qū)動(dòng)IC
文件頁(yè)數(shù): 3/4頁(yè)
文件大?。?/td> 36K
代理商: LB1941
No. 7193-3/4
LB1941T
Truth Table
Input
Output
Mode
IN1
IN2
OUT1
OUT2
L
L
OFF
OFF
Standby 1
*
H
L
H
L
Forward rotation
L
H
L
H
Reverse rotation
H
H
OFF
OFF
Standby 2
*
Cautions for use
Standby states 1 and 2 in the above truth table differ as follows:
Standby state 1 ............All circuits in IC are not operating and the current dissipation is almost zero.
Standby state 2 ............The constant-current control amplifier output in IC is in the full drive condition. Both OUT1
and OUT2 are OFF. The current dissipation is a few mA.
During mode transfer from the standby state 1 to forward (reverse) rotation, the current rises from the output current
zero condition to the required constant current value. On the other hand, during mode transfer from the standby state
2 to forward (reverse) rotation, full drive is applied once to the output, then the current lowers to the required current
value.
Therefore, select the standby 1 state when putting IC in the standby state. A typical drive sequence is shown in the
figure below.
Pin Assignment
IN1
IN2
FC
GND
8
VCC
7
OUT1
6
OUT2
5
RFG
1
2
3
4
(Top view)
Standby
Standby
Reverserotation
Reverserotation
Fowardrotation
IN1
IN2
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