MIC5400 Micrel Semiconductor, MIC5400 Datasheet - Page 2

• Manufacturer Part Number: MIC5400
• Description: Dual/ 8-Output/ 14-Bit LED Video Display Driver
• Manufacturer: Micrel Semiconductor

MIC5400
Pin Configuration
Pin Description
MIC5400
Pin Number
11,12,13,14
15,16,17,18
25,26,27,28
1,2,3,4
8,22
Pin
10
19
20
21
23
24
5
6
7
9
A4,A3,A2,A1
B1,B2,B3,B4
B5,B6,B7,B8
A8,A7,A6,A5
SHIFTOUT
Pin Name
SHFTCLK
SHIFTIN
VDDB
VDDA
Name
LOAD
BD_B
BD_A
GND
VDD
REF
SHIFTOUT
SHFTCLK
SHIFTIN
LOAD
GND
VDD
A4
A3
A2
A1
B1
B2
B3
B4
10
11
12
13
14
1
2
3
4
5
6
7
8
9
Pin Function
Function
Current Sink pins to be connected to LED cathodes
If this pin is Low, the device acts as a shift register. When this pin is High,
only the first falling edge of the clock transfers data from the Shift-Register to
the Parallel Register. The next rising edge transfers data from the Status
Register to the Shift Register
Shift-register Clock Input
Positive Supply Voltage
Ground
Shift-register Data Input
Shift-register Data Output
Current Sink pins to be connected to LED cathodes
Current Sink pins to be connected to LED cathodes
Analog Power source pins which provide current sense points for Channel A
and Channel B PNP emitter currents, independently.
Base Drive Outputs for external PNP transistors. Feedback Loop compensa-
tion requires one external capacitor at each PNP transistor collector.
Reference current output. Must be connected to an external resistor to set
the maximum current for the current sink outputs.
Base Drive Outputs for external PNP transistors. Feedback Loop compensa-
tion requires one external capacitor at each PNP transistor collector.
Analog Power source pins which provide current sense points for Channel A
and Channel B PNP emitter currents, independently.
Current Sink pins to be connected to LED cathodes
28-Lead SOIC
2
28 A5
27
26
25
24
23
22
21
20
19
18
17
16
15
A6
A7
A8
VDDA
BD_A
GND
IREF
BD_B
VDDB
B8
B7
B6
B5
November 2002
Micrel