PM6600 STMicroelectronics, PM6600 Datasheet - Page 55

• 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
Appendix C
C.1
Full application schematic
Figure 58. Full application schematic
With respect to the Basic application circuit (see chapter1), some optional components are
added. Below the suggestions, section by section, on why and in which cases to add these
components.
FAU LT
V IN +
EN
VI N -
D I M
10 0kR
1
Ren 2
2
1k R t o 3. 3k R
A VC C
R di m1
Application suggestions
3 .3 k R
R en 1
MOD E
4 70 nF
Ce n
Rd im 2
10 0k R
SW 3
C c o mp
3 . 3 nF
Rc o mp
2. 4k R
C s s
C in
3. 3nF t o 10 nF
C a v c c
C ldo 5
3 30 k
R f s w
1 00 nF
1uF
>4 . 7 uF
AV CC
Doc ID 14248 Rev 7
A VC C
R f ilt
4 .7 R
FS W
22
21
20
24
6
7
5
1
SW 2
AVC C
LD O 5
FAU LT
EN
DI M
MOD E
COMP
SS
R r ilim
50 k R
PM6600
R bilim
180 kR
6 . 8 uH to 15u H
L
O VSEL
SLO PE
P G ND
R O W6
R O W5
R O W4
R O W3
R O W2
R O W1
TH PD
1 8
9
1 7
1 6
1 5
1 4
1 3
1 2
1 1
2 5
S TP S1L40 M
R OW 6
R OW 5
R OW 4
R OW 3
R OW 2
R OW 1
D
C ro w1
Crowx = 100pF to 470pF
R 1
*
R 2
*
C row2
C 1 3
22 pF t o 1 00pF
C 1 0
22 0p F t o 1nF
C r ow 3
C r ow4
Application suggestions
C ro w5
Rs lop e
680 k R
C ro w6
3
C ou t
>4. 7 uF
VBOOST
55/60