Highly Efficient 4-String White LED Driver,SGM37604 Replace LM36922.
FEATURES

• 11% Matched Current Sinks across Process, 

   Voltage and Temperature at ILED = 12.21μA

 1% Matched Current Sinks across Process, 

   Voltage and Temperature at ILED = 25mA 

 11% Current Sink Accuracy across Process, 

   Voltage and Temperature at ILED = 12.21μA

 3% Current Sink Accuracy across Process, 

   Voltage and Temperature at ILED = 25mA

 12-Bit Dimming Resolution

 Up to 90% Solution Efficiency

 Drive from 1 to 4 Parallel LED Strings at Up to 29.5V 

 PWM Dimming Input

 I2 C Programmable

 Phase Shift Function

 Hybrid PWM + Current Dimming for Higher LED 

   Driver Optical Efficiency

 1.2MHz Switching Frequency

 Low EMI by Conducting Ringing Cancelling

 Over-Voltage Protection

 Over-Current Protection

 Thermal Shutdown Protection

PIN CONFIGUTION
优势替代
LM36922 LM36922.pdf

No.10071

FEATURES

• 1% Matched Current Sinks Across Process,

   Voltage, Temperature

• 3% Current-Sink Accuracy Across Process,

   Voltage, Temperature

• 11-Bit Dimming Resolution

• Up to 90% Solution Efficiency

• Drives from One to Two Parallel LED Strings at up

   to 38 V at 25 mA per String

• PWM Dimming Input

• I2C Programmable

• Selectable 500-kHz and 1-MHz Switching

   Frequency With Optional –12% shift

• Auto Switch Frequency Mode (250 kHz, 500 kHz,1 MHz)

• Four Configurable Overvoltage Protection

  Thresholds (17 V, 24 V, 31 V, 38 V)

• Four Configurable Overcurrent Protection

   Thresholds (750 mA, 1000 mA, 1250 mA,1500 mA)

• Thermal Shutdown Protection

• Externally Selectable I2C Address Options via ASEL Input



PIN CONFIGUTION
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