MAX17061ETI+ Maxim Integrated Products, MAX17061ETI+ Datasheet - Page 18

• Manufacturer Part Number: MAX17061ETI+
• Description: IC LED DRVR WHITE BCKLGT 28-TQFN
• Manufacturer: Maxim Integrated Products
• Type: Backlight, White LEDr

Specifications of MAX17061ETI+

• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 8
• Internal Driver: Yes
• Type - Primary: Automotive, Backlight
• Type - Secondary: White LED
• Frequency: 1MHz
• Voltage - Supply: 4.5 V ~ 26 V
• Voltage - Output: 5V
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 30mA
• Internal Switch(s): Yes
• Operating Supply Voltage: 5 V
• Maximum Supply Current: 2 mA
• Maximum Power Dissipation: 1667 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Efficiency: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

8-String White LED Driver with
SMBus for LCD Panel Applications
Table 2. Operating Modes Selected by Device Control Register Bits 1 and 2
Fault/Status Register: Address is 0x02. This register has 6 status bits that allow monitoring the backlight con-
troller’s operating state. Bit 6 and Bit 7 are reserved bits, and Bit 3 is the status indicator or backlight. The other 5
bits are fault indicators. Bit 0 is a logical OR of all fault codes except LED open/short to simplify error detection. All
the bits in this register are read only. The reserved bits return a zero when read.
Bit field definitions:
Identification Register: Address is 0x03. The ID register contains two bit fields to denote the manufacturer and the
silicon revision of the controller IC. The bit field widths were chosen to allow up to 32 vendors with up to eight silicon
revisions each. This register is read only.
Bit field definitions:
18
LED PANEL
RESERVED
BIT FIELD
BIT FIELD
Bit 7 = 1
Bit [6..3]
Bit [2..0]
REGISTER 0x02
Bit 7 (R)
______________________________________________________________________________________
REGISTER 0x03
Bit 7
PWM_MD
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
X
1
0
THRM_SHD
DEFINITION
RESERVED
DEFINITION
OV_CURR
LED panel
2_CH_SD
1_CH_SD
MFG[3..0]
BL_STAT
REV[2..0]
Bit 6 (R)
Bit 6 (R)
FAULT
MFG3
PWM_SEL
Two or more LED output channels are faulted (1 = faulted, 0 = OK)
One LED output channel is faulted (1 = faulted, 0 = OK)
Backlight status (1 = BL on, 0 = BL off)
Input overcurrent (1 = overcurrent condition, 0 = current OK)
Thermal shutdown (1 = thermal fault, 0 = thermal OK)
Any faul t excep t LE D op en/shor t occur s ( l og i c O R of al l faul t cond i ti ons, 1 = faul t cond i ti on, 0 = no faul t)
2_CH_SD
Display panel using LED backlight, bit 7 = 1
Manufacturer ID; see Table 3, default = 0
Silicon rev (revs 0–7 allowed for silicon spins), default = 0
Bit 5 (R)
1
0
0
Bit 5 (R)
MFG2
FAULT STATUS REGISTER
ID REGISTER
1_CH_SD
Bit 4 (R)
Bit 4 (R)
SMBus mode
DPST mode
MFG1
PWM mode
MODE
BL_STAT
Bit 3 (R)
Bit 3 (R)
MFG0
PWMI input duty cycle
SMBus command
Product of PWMI input duty cycle and SMBus command
DESCRIPTION
DESCRIPTION
OV_CURR
Bit 2 (R)
DPWM DUTY-CYCLE SETTING
Bit 2 (R)
REV2
DEFAULT VALUE 0x80
DEFAULT VALUE 0x00
THRM_SHDN
Bit 1 (R)
Bit 1 (R)
REV1
Bit 0 (R)
FAULT
Bit 0 (R)
REV0