PM6600 STMicroelectronics, PM6600 Datasheet - Page 25

• Manufacturer Part Number: PM6600
• Description: IC LED DRIVR WHT BCKLT 24-VFQFPN
• Manufacturer: STMicroelectronics
• Type: Backlight, White LEDr

Specifications of PM6600

• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 6
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: White LED
• Frequency: 200kHz ~ 1MHz
• Voltage - Supply: 4.7 V ~ 28 V
• Voltage - Output: 36V
• Mounting Type: Surface Mount
• Package / Case: 24-VFQFN, 24-VFQFPN
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 32mA
• Internal Switch(s): Yes
• Number Of Segments: 60
• Operating Supply Voltage: 4.7 V to 28 V
• Maximum Power Dissipation: 2.3 W
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• For Use With: 497-8414 - BOARD EVAL BASED ON PM6600
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Efficiency: -
• Lead Free Status / Rohs Status: Details

PM6600
6
Figure 42. Simplified block diagram
Block diagram
FAULT
MODE
COMP
SYNC
AVCC
BILIM
LDO5
FSW
DIM
EN
SS
Ext Sync
Detector
Shutdown
Soft Start
Thermal
Current Limit
Prot_EN
CONTROL
Detector
VIN
LOGIC
UVLO
UVLO
LDO
+5V
1.2V
÷2
Generator
SLOPE
OSC
OVP
Ramp
FRD
Boost_EN
CTRL6
CTRL5
CTRL4
CTRL3
CTRL2
Prot_EN
UVLO
Doc ID 14248 Rev 7
I to V
+
g
Min Voltage
m
+
+
_
Selector
CTRL1
V
ROW1
RILIM
+
_
0.4V
Current Sense
ZCD
Boost_EN
Control
Boost
Logic
CTRL6
CTRL5
CTRL4
CTRL3
CTRL2
V
V
V
V
V
ROW6
ROW5
ROW4
ROW3
ROW2
Generator 1
FRD
OVP
Current
LOGIC
+
_
8.2V
Generator 6
Generator 5
Generator 4
Generator 3
Generator 2
Current
Current
Current
Current
Current
I to V
SGND
_
_
+
+
V
TH,FLT
1.143V
1.235V
LX
PGND
OVSEL
ROW6
ROW5
ROW4
ROW3
ROW2
ROW1
Block diagram
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