CAT4134
ELECTRICAL OPERATING CHARACTERISTICS (continued)
Over recommended operating conditions unless specified otherwise.
VIN = 3.6V, EN = VIN and at ambient temperature of 25ºC.
Symbol Parameter
V
RSET
RSET pin voltage
V
RFLASH
V
LED
RFLASH pin voltage
LED1, LED2 Pin Voltage
(whichever is the lower)
Programmed LED Current
LED Current Adjust Range
per LED output
LED Current Accuracy
LED Current Matching
Conditions
22kΩ < R
SET
< 200kΩ
22kΩ < R
FLASH
< 200kΩ
Both Flash and Movie Mode
(lower voltage pin is regulated)
R
SET
= 21.6kΩ
R
FLASH
= 43.2kΩ
R
FLASH
= 21.6kΩ
In Movie mode
In Flash mode
Min
1.10
1.10
Typ
1.20
1.20
400
20
50
100
5
25
±5
±5
50
200
Max
1.30
1.30
Unit
V
V
mV
I
LED
I
LED-RAN
I
LED-ACC
I
LED-DEV
mA
mA
%
%
FLASH CONTROL LOGIC INPUT
Logic High Threshold
V
FHI
Logic Low Threshold
V
FLO
I
INPUT
Input Bias current
FLASH > V
FHI
Flash Enabled
FLASH = 3V
0.4
0.7
0.7
10
1.5
40
V
µA
© 2006 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice.
3
Doc. No. 5021 Rev. A
CATALYST [ CATALYST SEMICONDUCTOR ]
