sp784ct Exar Corporation, sp784ct Datasheet - Page 4

• Manufacturer Part Number: sp784ct
• Description: Programmable Charge Pump Corporation
• Manufacturer: Exar Corporation

AC CHARACTERISTICS*
(Typical @ 25 C and nominal supply voltages unless otherwise noted)
Figure 1. Charge Pump Waveforms
SP782/SP784 DS/08
+10V
GND
GND
–10V
C
C
2
PARAMETER
SP782 POWER-UP DELAY TIME
t
t
t
t
SP782 OUTPUT DELAY TIME
t
t
SP784 POWER-UP DELAY TIME
t
t
t
t
SP784 OUTPUT DELAY TIME
t
t
* - Using the charge pump capacitor values specified in the previous pages for each device.
2
DVDD
DVSS
DVDD
DVSS
SD1
SD2
DVDD
DVSS
DVDD
DVSS
SD1
SD2
–
+
10V OUTPUT
5V OUTPUT
10V OUTPUT
5V OUTPUT
; Switching Delay
; Switching Delay
; Switching Delay
; Switching Delay
; V
; V
; V
; V
; V
; V
; V
; V
from 10V to 5V
from 5V to 10V
from 10V to 5V
from 5V to 10V
SS
SS
SS
SS
DD
DD
DD
DD
Power-On Delay
Power-On Delay
Power-On Delay
Power-On Delay
Power On Delay
Power On Delay
Power On Delay
Power On Delay
MIN.
SP782/784 Programmable Charge Pump
TYP.
1000
1000
1000
1000
150
500
10
10
10
5
5
2
(a)
(b)
4
MAX.
UNITS
ms
ms
ms
ms
s
s
s
s
s
s
s
s
R
R
R
R
R
R
R
R
R
R
R
R
L
L
L
L
L
L
L
L
L
L
L
L
© Copyright 2000 Sipex Corporation
= 1k
= 1k
= 1k
= 1k
= 1k
= 1k
= 1k
= 1k
= 1k
= 1k
= 1k
= 1k
CONDITIONS
GND
GND
+5V
–5V
C
C
2
2
+
–