MB39C313 Datasheet, PDF (19/52 Pages) Fujitsu Component Limited. – 4ch System Power Management IC for LCD Panel

MB39C313
■ SET UP
1. Setting Control Pin
Pin
Channels
EN1
VLOGIC: Buck converter
VGL: Negative Charge Pump
EN2
VS: Boost converter
VGH: Positive Charge Pump
Standby
L
L
Operating
H
H
2. Setting Switching Frequency
Pin
Setting
H
FREQ
L
Internal oscillator frequency
750 kHz
500 kHz
3. Protection Circuitry
3.1) IC
Under voltage lock out: AVIN ≤ 6 V, all channels shut down
3.2) VLOGIC : Buck Converter
Short circuit protection: FBB pin < 0.9 V, protection circuit active
Over current protection: output current ≥ 3.2 A, protection circuit active
3.3) VS : Boost Converter
Over voltage protection: VS ≥ 18.7 V, protection circuit active
Over current protection: SW pin current ≥ 3.5 A, protection circuit active
3.3) VGL : Negative Charge Pump
No protection circuits
3.4) VGH : Positive Charge Pump
No protection circuits
DS04–27267–1E
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