LM2759SD/NOPB National Semiconductor, LM2759SD/NOPB Datasheet - Page 7

• Manufacturer Part Number: LM2759SD/NOPB
• Description: IC LED DRIVER PHOTO FLASH 12-LLP
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: Photo Flash LED (I²C Interface)r

Specifications of LM2759SD/NOPB

• Constant Current: Yes
• Topology: Switched Capacitor (Charge Pump)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Flash/Torch
• Frequency: 700kHz ~ 1.3MHz
• Voltage - Supply: *
• Voltage - Output: 2 V ~ 4 V
• Mounting Type: Surface Mount
• Package / Case: 12-LLP
• Operating Temperature: -30°C ~ 85°C
• Current - Output / Channel: 1A
• Internal Switch(s): Yes
• Efficiency: 90%
• Led Driver Application: Camera Flash In Mobile Phones, Flash For Digital Cameras
• No. Of Outputs: 1
• Output Current: 1A
• Output Voltage: 5.1V
• Input Voltage: 2.7V To 5.5V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM2759SDTR

CH1: SDA; Scale: 2V/Div, DC Coupled
CH2: V
CH3: I
CH4: I
Time scale: 1ms/Div
Shutdown to Flash Mode, 1A
Oscillator Frequency vs V
IN
LED
OUT
; Scale: 1A/Div, DC Coupled
; Scale: 1A/Div, DC Coupled
; Scale: 2V/Div, DC Coupled
Flash Code Levels
IN
30069321
30069332
30069334
7
CH1: SDA; Scale: 2V/Div, DC Coupled
CH2: V
CH3: I
CH4: I
Time scale: 400µs/Div
CH1: SDA; Scale: 2V/Div, DC Coupled
CH2: V
CH3: I
CH4: I
Time scale: 1ms/Div
Torch to Flash Mode, 100mA to 1A
Shutdown to Torch Mode, 100mA
IN
LED
IN
LED
OUT
OUT
; Scale: 100mA/Div, DC Coupled
; Scale: 1A/Div, DC Coupled
; Scale: 100mA/Div, DC Coupled
; Scale: 1A/Div, DC Coupled
; Scale: 2V/Div, DC Coupled
; Scale: 2V/Div, DC Coupled
Torch Code Levels
30069331
30069333
30069335
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