cat4134 Catalyst Semiconductor, cat4134 Datasheet - Page 3

• Manufacturer Part Number: cat4134
• Description: 500ma Dual Channel Movie/flash Led Driver
• Manufacturer: Catalyst Semiconductor

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