DS3881E+C Maxim Integrated Products, DS3881E+C Datasheet - Page 20

• Manufacturer Part Number: DS3881E+C
• Description: IC CCFL CONTROL 24TSSOP
• Manufacturer: Maxim Integrated Products
• Type: CCFL Controllerr

Specifications of DS3881E+C

• Frequency: 40 ~ 100 kHz
• Current - Supply: 12mA
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 24-TSSOP
• Operating Supply Voltage: 5 V
• Maximum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: + 105 C
• Supply Current: 12 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: DS3881E+; DS3881E+

Table 5. Control Register 1 (CR1) [Shadowed-EEPROM, F4h]
Single-Channel Automotive CCFL Controller
20
BIT
0
1
2
3
4
5
6
7
____________________________________________________________________
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
FACTORY
DEFAULT
0
0
0
0
0
0
0
0
POSCS
NAME
RGSO
LOCE
DPSS
RSVD
LFSS
ARD
DPD
Lamp Overcurrent Enable
0 = Lamp overcurrent detection disabled.
1 = Lamp overcurrent detection enabled.
POSC Select. See POSCR0 and POSCR1 control bits in Control Register 2 to select
the oscillator range.
0 = POSC input is connected with a resistor to ground to set the frequency of the
internal PWM oscillator.
1 = POSC input is a 22.5Hz to 440Hz clock.
Lamp Frequency Source Select
0 = Lamp frequency generated internally and sourced from the LSYNC output.
1 = Lamp frequency generated externally and supplied to the LSYNC input.
DPWM Signal Source Select
0 = DPWM signal generated internally and sourced from the PSYNC output.
1 = DPWM signal generated externally and supplied to the PSYNC input.
Ramp Generator Source Option
0 = Source DPWM at the PSYNC output.
1 = Source internal ramp generator at the PSYNC output.
Autoretry Disable
0 = Autoretry function enabled.
1 = Autoretry function disabled.
Reserved. Should be set to 0.
DPWM Disable
0 = DPWM function enabled.
1 = DPWM function disabled.
FUNCTION