M62295GP Datasheet, PDF (1/7 Pages) Mitsubishi Electric Semiconductor – LCD BACK-LIGHT CONTROL IC

MITSUBISHI(Standard Linear ICs)
MM6622229955GGP P
LCDPBCABCAKCK-L-ILGIGHHTTCCOONNTTRROOLLICIC
DESCRIPTION
M62295GP is a semiconductor integrated circuit designed for PC
back- light control, which employs 2 output totempole output circuit
specifically suitable for inverter drive with piezo device.
Such necessary functions as light control, protection circuit are
housed in 16pin SSOP package. This allows for simplified peripheral
circuit as well as compact and thin set design.
FEATURES
• Direct drive to n-ch/ p-ch MOSFET
• Fixed output duty: 45%
• Output current (peak) : ± 300mA
• Light control
• Pulse synchronous control
Output OFF period is adjusted synchronous with the OSC
frequency (1kHz-200kHz).
• Light control available from 10%(MIN.) up to 100% by the
voltage applied from outside (Adj2 terminal).
• Protection functions
• 2 kinds of timer-latch time setting available by 3 triggers
(few seconds, several tens of seconds set by external capacitor)
APPLICATION
• CLD Back-light contorol for Note P.C etc.
PIN CONFIGURATION (TOP VIEW)
G2 1
GND 2
N.C 3
Adj2 4
Vref 5
Cscp1 6
Cscp2 7
Iscp 8
16 G1
15 Vcc
14 P/C
13 CT2
12 CT1
11 RT
10 FB
9 IN -
Outline 16P2E-A
N.C : NO CONNECTION
BLOCK DIAGRAM
5
Vref
Ref. volt.
Vcc
15
UVLO
P/C
RT CT1
14
11 12
ON/OFF
OSC.
CT2
13
VCC
1
G2
9
IN -
1.25V
2.5V
0.25V
2 10
GND FB
VCC
Protection
Circuit
(Timer Latch)
16
G1
6 78
Cscp1 Cscp2 Iscp
34
N.C Adj2
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