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參數資料
| 型號： | U6268B-FP |
| 英文描述： | Low power JFET dual operational amplifiers |
| 文件頁數： | 8/13頁 |
| 文件大小： | 109K |
| 代理商： | U6268B-FP |
U6268B
Rev. A3, 11-Apr-01
8 (13)
Electrical Characteristics (continued)
T
amb
= –40 to 95
°
C and T
j
= –40 to 150
°
C,
Operation supply-voltage range V
S
= 5.7 to 18 V continuously, V
S
The current values are based on R = 750
25 V for max. 25 min, V
S
40 V for up to 500 ms.
0%-resistor at OCM1/OCM2 pins.
Parameters
Test Conditions / Pins
18 V
40 V
T
j
< 125
°
C
Symbol
I
OUT_lim
Min.
–80
–105
–70
Typ.
Max.
–60
–60
–51
Unit
mA
mA
mA
OUTx current limitation
(OUTx short to GND)
Overcurrent detection
level general
Overcurrent detection
level
V
S
V
S
I
OUT_det
T
j
Always valid: current limitation is
higher than overcurrent detection
V
S
= 14 V, OCMx shorted to GND
125
°
C
I
OUT_det
–60
–51
mA
Maximum OUTx current
(OUTx short to GND)
Leakage current at
disabled OUTx
Leakage voltage at
disabled OUTx
Internal pull-down
current
Supply rejection-ratio
I
OUT_max
–140
–85
mA
OUTx short to GND, V
S
OUTx short to GND, V
S
OUTx open, V
S
25 V
38.5 V
I
OUT_leak
–0.02
–12
mA
mA
V
38.5 V
V
OUT_leak
4.3
V
S
V
S
V
SC
= 7.6 V
Variation of V
S
= 8.4 V to 40 V
in 10 s
18 V
40 V
I
OUT_sink
1.8
2.5
4
4.5
80
mA
mA
mV
V
rej_mV
V
rej_dB
Supply rejection-ratio
51.9
dB
Minimum capacity at
OUTx for phase margin
Delay time with
C
out
= 47 nF
C
OUT_min
33
nF
Switching on ENABLE = 1 to
90% V
OUT
reached
Switching off ENABLE = 0 to
10% V
OUT
reached
Enable_on
Enable_off
3
30
30
100
s
s
Function OCM1, OCM2
Voltage threshold CLL-
comparator
CLLx low-level voltage threshold
CLLx high-level voltage threshold
Voltage hysteresis
I
OUT
= 0 to 5 mA
V
CLL_L
V
CLL_H
V
CLL_hys
V
OCM_min
1.75
1.43
0.26
2.4
1.9
0.6
0.5
V
V
V
V
Minimum voltage at
OCMx
Current-limitation level
V
S
V
S
40 V, OUTx short to GND
V
OCM_lim
V
OCM_det
4.3
5.3
V
Overcurrent-detection
level
Current limitation minus
overcurrent detection
Intern. pull-down current
40 V
4.2
4.9
V
V
OCM_lim
– V
OCM_over
_lim_OCM
0.15
0.5
V
I
OCM_sink
0.1
0.45
mA
Function RETURN1, RETURN2
Enable high saturation
voltage
I
RETURN
= 50 mA
V
ret_sat
0.5
V
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