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MBI5171 Datasheet, PDF (10/31 Pages) List of Unclassifed Manufacturers – 8-Bit Constant Current LED Driver with LED Error Detection and Run-Time Current Adjustment
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MBI5171
8-Bit Constant Current LED Driver with
LED Error Detection and Run-Time Current Adjustment
Recommended Operating Conditions
Characteristics
Symbol
Condition
Min.
Typ.
Max.
Unit
Supply Voltage
Output Voltage
VDD
-
VDS
OUT0 ~ OUT7
4.5
5.0
5.5
V
-
-
17.0
V
Output Current
Input Voltage
IOUT
OUT0 ~ OUT7
CM*=1, VDD =5V
5
IOUT
OUT0 ~ OUT7 ,
CM*=0, VDD =5V
5
IOH
SDO
-
IOL
SDO
-
CLK,OE/SW/ED
VIH
LE/MOD, and SDI
0.7VDD
VIL
CLK,OE/SW/ED ,
LE/MOD, and SDI
-0.3
-
120
mA
-
40
mA
-
-1.0
mA
-
1.0
mA
-
VDD+0.3
V
-
0.3VDD
V
CLK Pulse Width
tw(CLK)
20
-
-
ns
Setup Time for SDI
tsu(D)
-
Hold Time for SDI
th(D)
5
-
10
-
-
ns
-
ns
LE/MOD/CA Pulse Width
tw(L)
20
-
-
ns
Setup Time for LE/MOD/CA
Hold Time for LE/MOD/CA
tsu(L)
th(L)
For data strobe
5
-
10
-
-
ns
-
ns
Setup Time for LE/MOD/CA
tsu(MOD) In Mode Switching
5
-
Hold Time for LE/MOD/CA
th(MOD)
10
-
tw(SW)
To trigger Mode
Switching
20
-
-
ns
-
ns
-
ns
OE/SW/ED Pulse Width
tw(OE)
Iout < 60mA
200
-
tw(OE)
Iout = 60~100mA
400
-
-
ns
-
ns
tw(ED)
When detecting
LED error status
2010
-
Setup Time for
Correctly-Generated Error
Status Code **
tsu(ER)
When detecting
LED error status
2000
-
-
ns
-
ns
Setup Time for OE/SW/ED
tsu(SW)
To trigger Mode
Switching or when
5
-
Hold Time for OE/SW/ED
th(SW)
detecting LED error
status
10
-
-
ns
-
ns
Clock Frequency
FCLK
Cascade Operation
(VDD= 5.0V)
-
-
25
MHz
* CM is one bit in configuration code and called as “Current Multiplier.” It would affect the ratio of IOUT to Irext. The
detail information could be found in the section Operation Principle.
** In the Error Detection mode, when OE/SW/ED is pulled down to LOW for enabling output drivers and error
detection, the output drivers must be enabled for at least 2us so that the error status code could be correctly
generated. See Operation Principle and Timing Waveform.
- 10 -
August 2004, VA.00
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