MAP3204 查看數據表（PDF） - MagnaChip Semiconductor
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MAP3204 Datasheet PDF : 11 Pages
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Confidential
Datasheet Version 1.5
Pin Description
Name
VCC
GND
VDD
FSW
COMP
ISET
EN
PWMI
FB1
FB2
FB3
FB4
OVP
CS
GATE
VLDO
NC
-
16leads E-
TSSOP
16
4, 13
1
2
3
5
7
6
11
10
9
8
12
14
15
-
-
Exposed PAD
20leads SOIC
Description
1
5, 17
2
3
4
6
8
7
12
11
10
9
15
19
20
16
13, 14, 18
-
Power supply input. Need external input capacitor.
Ground
Internal 10V Regulator Output. Connect to 2.2uF capacitor
Booster switching frequency adjustment pin (Note 1)
Internal error amplifier compensation pin (Note 2)
Max. LED current adjustment pin (Note3)
Enable pin. Active High.
PWM signal input for dimming (Note 4)
LED current sink for Ch1
LED current sink for Ch2
LED current sink for Ch3
LED current sink for Ch4
Over voltage sense pin (Note 5)
Boost current sense pin (Note 6)
Gate driver output for external power MOSFET
Internal 5V Regulator Output. Connect to 2.2uF capacitor
Connect to ground for heat-sinking purpose
Connect to ground by multiple vias for heat-sinking purpose
(Note 7)
Note 1: Connect external resistor to set the oscillator frequency from 100kHz to 500kHz.
Note 2: Connect external capacitor and resistor to COMP pin. Refer to a typical application diagram.
Note 3: The resistor value on ISET pin will control the full scale level of sink current on FB- pins. Do not leave this pin open.
Note 4: This external PWM signal is used for brightness control.
Note 5: Connect center node of resistive voltage divider from output to ground. Refer to a typical application diagram.
Note 6: Connect external resistor to PGND to sense the external power MOSFET drain current.
Note 7: Not connected internally.
Feb 28th 2012.
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