MAX8759 Maxim Integrated Products, MAX8759 Datasheet - Page 11

• Manufacturer Part Number: MAX8759
• Description: CCFL Backlight Controller
• Manufacturer: Maxim Integrated Products

PIN
18
19
20
21
22
23
24
25
26
27
28
—
Low-Cost, SMBus, CCFL Backlight Controller
PGND1
PGND2
NAME
BST1
BST2
GND
GH2
GL1
V
GL2
V
LX2
EP
DD
CC
______________________________________________________________________________________
GH1 Gate-Driver Supply Input. Connect a 0.1µF capacitor from LX1 to BST1.
Power Ground. PGND1 is the return for the GL1 gate driver.
Low-Side MOSFET NL1 Gate Driver Output
Low-Side Gate-Driver Supply Input. Connect V
Low-Side MOSFET NL2 Gate-Driver Output
Power Ground. PGND2 is the return for the GL2 gate driver.
GH2 Gate-Driver Supply Input. Connect a 0.1µF capacitor from LX2 to BST2.
High-Side MOSFET NH2 Gate-Driver Output
GH2 Gate-Driver Return. LX2 is the input to the current-limit and zero-crossing comparators. The device
senses the voltage across the low-side MOSFET NL2 to detect primary current zero crossing and primary
overcurrent.
Analog Ground. The ground return for V
the IC at the IC’s backside exposed metal pad.
5.35V/10mA Internal Linear-Regulator Output. V
0.47µF ceramic capacitor to GND.
Exposed Backside Pad. Connect PAD to GND.
CC
, REF, and other analog circuitry. Connect GND to PGND under
DD
CC
FUNCTION
to the output of the internal linear regulator (V
is the supply voltage for the device. Bypass V
Pin Description (continued)
CC
CC
).
with a
11