PM6600 STMicroelectronics, PM6600 Datasheet - Page 41

• 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
If the fault disappears after toggling the EN pin, it means that the connection is again on and
the problem can be detected as a previous intermittent connection.
If the fault persists also after toggling the EN pin, it means that the problem is on the leds
(one or more open leds) or on the flat cable or the cable connector (broken wire).
The resultant Fault Management table will be:
Table 9.
Open row plus shorted LED
Shorted LEDs on more row
Shorted LED on a single
Internal MOSFET over
Output over voltage
Thermal shutdown
(different rows)
More than one
open rows
Open row
FAULT
current
row
Intermittent connection faults management summary
Doc ID 14248 Rev 7
device turned OFF latched
device turned OFF latched
power-MOS turned OFF
faulty ROW DISABLED
faulty ROW DISABLED
VTH,FAULT = 8.2 V
device latched OFF
VTH,FAULT = 8.2 V
device latched OFF
device latched OFF
VTH,FAULT = 8.2 V
FAULT pin HIGH
FAULT pin LOW
FAULT pin LOW
FAULT pin LOW
FAULT pin LOW
FAULT pin LOW
FAULT pin LOW
FAULT pin LOW
MODE to GND
device turned OFF latched
device turned OFF latched
power-MOS turned OFF
faulty ROWs DISABLED
faulty ROWs DISABLED
faulty ROWs DISABLED
faulty ROW DISABLED
faulty ROW DISABLED
VTH,FAULT = 8.2 V
VTH,FAULT = 8.2 V
VTH,FAULT = 8.2 V
FAULT pin HIGH
FAULT pin LOW
FAULT pin LOW
FAULT pin LOW
FAULT pin LOW
FAULT pin LOW
FAULT pin LOW
FAULT pin LOW
MODE to VCC
Fault management
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