ML4876ER Просмотр технического описания (PDF) - Micro Linear Corporation
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Компоненты Описание
производитель
ML4876ER Datasheet PDF : 9 Pages
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ML4876
PIN CONFIGURATION
FEA OUT
FEA–
FEA+
L ON
VREF
ON/OFF
LEA–
LEA OUT
CT
L RTD
ML4876
20-Pin SSOP (R20)
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
TOP VIEW
F ILIM
B OFF
B ON
GND
L GATE2
HVDD
L GATE1
VDD
F GATE
B SYNC OUT
PIN DESCRIPTION
PIN NAME
1 FEA OUT
2 FEA–
3 FEA+
4 L ON
5 VREF
6 ON/OFF
7 LEA–
8 LEAOUT
9 CT
10 L RTD
DESCRIPTION
Output of flyback (contrast) error
amplifier
Negative input of flyback
(contrast) error amplifier
Positive input of flyback (contrast)
error amplifier
Logic input. A ”0“ on this pin
disables the lamp driver section
only
Voltage reference output
Logic input. A ”0“ on this pin
disables the linear regulator
Negative input for lamp error
amplifier
Output of lamp error amplifier
Oscillator timing capacitor
Input to resonant threshold detector
PIN NAME
DESCRIPTION
11 B SYNC OUT Output of MOSFET driver.
Connects to gate of synchronous
FET catch diode.
12 F GATE
Connects to gate of MOSFET in
primary side of contrast control
13 VDD
Output of linear regulator. Positive
power for IC.
14 L GATE1
Output of MOSFET driver.
Connection to gate of one side of
inverter FET drive pair
15 HVDD
Battery power input to linear
regulator
16 L GATE2
Output of MOSFET driver.
Connection to gate of one side of
inverter FET drive pair
17 GND
Ground
18 B ON
Connection to primary side of gate
pulse transformer
19 B OFF
Output of MOSFET driver.
Connection to gate of FET that
disables the input power.
20 F ILIM
Input to current limit comparator
2
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