The SGM3844 is designed for powering AMOLED displays which requires VELVDD, VELVSS and VAVDD. The device integrates two Boost converters, VO1 for VELVDD and VO3 for VAVDD and a dual-phase inverting Buck-Boost converter VO2 for VELVSS. Output voltages of all the three converters can be programmed in digital steps through the digital interface control pins (ASWIRE & ESWIRE).
The SGM3844 is available in a Green WLCSP- 2.1×2.1-25B-A package.
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FEATURES
- 2.5V to 5V Input Supply Voltage Range
- Synchronous Boost Converter VO1 (ELVDD)
- 4.6V to 5.0V Output Voltage with 100mV Steps
- 4.6V Default Output Voltage
- 0.7% Accuracy at 4.6V
- Synchronous Inverting Buck-Boost Converter VO2 (ELVSS)
- -6.0V to -0.5V Output Voltage with 100mV Steps
- -1.4V Default Output Voltage
- ±25mV Variation at -3V
- ELVDD-ELVSS Combined Output Current Capability (VVO1 = 4.6V)
- 1000mA @ VIN = 2.5V, VVO2 = -4.5V
- 1000mA @ VIN = 2.9V, VVO2 = -6V
- Synchronous Boost Converter VO3 (AVDD)
- 5.5V to 8.0V Output Voltage with 100mV Steps
- 7.3V Default Output Voltage
- 0.7% Accuracy at 7.3V
- 150mA Output Current Capability
- VIN and VOUT Bi-Directional Isolation
- SWIRE Interface
- Under-Voltage Lockout (UVLO)
- All Channels Soft-Start
- All Channels Fast Discharge Function (FD)
- All Channels Short-Circuit Protection (SCP)
- All Channels Over-Current Protection (OCP)
- Over-Temperature Protection (OTP)
- Start-Up Short Detection (SSD)
- VELVSS Start-Up Delay: 5.8ms
- Short-Circuit and OCP Detection Time: 1.4ms
- Available in a Green WLCSP-2.1×2.1-25B-A Package
APPLICATIONS
Smartphones & Tablets
Active Matrix OLED Displays
Ordering Information
Part Number | Status | Package | Pins | Pd-Free | RoHS | REACH | Green | MSL Rating | Operating Temperature Range | Material Content | Reliability Report | Unit Resale Price* (Volume Range: in USD) | Lead Time** (Volume Range: Days) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SGM3844YG/TR | Active | WLCSP-2.1×2.1-25B-A | 25 | YES | YES | YES | YES | MSL1 | -40℃ to +85℃ | View | View | 1-24 units : $1.225/unit 25-99 units : $1.05/unit 100-249 units : $0.875/unit 250-499 units : $0.7/unit 500-999 units : $0.6125/unit 1000-9999 units : $0.455/unit | 3K-9K : 14 days 10K-99K : 35 days 100K-999K : 78 days 1000K and above : 112 days |
* The unit resale price is for reference purposes only. Please contact our distributors for a formal quotation.
** The lead time provided is for reference purposes only and is subject to change based on different circumstances.
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