ZHCSL45A April 2020 – September 2020 LM25183-Q1
PRODUCTION DATA
The required input, output, and performance parameters for this application example are shown in Table 8-4.
| DESIGN PARAMETER | VALUE |
|---|---|
| Input voltage range (steady state) | 4.5 V to 42 V |
| Output 1 voltage and current (at VIN ≥ 24 V) | 15 V, 0.3 A |
| Output 2 voltage and current (at VIN ≥ 24 V) | –15 V, 0.3 A |
| Input UVLO thresholds | 4.5 V on, 4 V off |
| Output voltage regulation | ±2% |
The target full-load efficiency of this LM25183-Q1 design is 90% based on a nominal input voltage of 13.5 V and isolated output voltages of 15 V and –15 V sharing a common return. The selected flyback converter components are cited in Table 8-5, including the following:
| REF DES | QTY | SPECIFICATION | VENDOR | PART NUMBER |
|---|---|---|---|---|
| CIN | 1 | 10 μF, 50 V, X7R, 1210, ceramic, AEC-Q200 | TDK | CNA6P1X7R1H106K250AE |
| Taiyo Yuden | UMJ325KB7106KMHP | |||
| COUT1, COUT2 | 4 | 22 μF, 25 V, X7R, 1210, ceramic, AEC-Q200 | TDK | CGA6P3X7R1E226M250AB |
| Taiyo Yuden | TMK325B7226KMHT | |||
| DCLAMP | 1 | Zener, 20 V, 3 W, SMA | 3SMAJ5932B | Micro Commercial |
| DF | 1 | Schottky diode, 60 V, 3 A, SOD-123FL | FSV360FP | OnSemi |
| DFLY1, DFLY2 | 2 | Schottky diode, 100 V, 1 A, POWERDI123 | DFLS1100-7 | Diodes Inc. |
| DOUT1, DOUT2 | 2 | Zener, 18 V, 5%, SOD-523, AEC-Q101 | BZX585-C18 | Nexperia |
| RFB | 1 | 102 kΩ, 1%, 0402 | Std | Std |
| RSET | 1 | 12.1 kΩ, 1%, 0402 | Std | Std |
| RTC | 1 | 221 kΩ, 1%, 0402 | Std | Std |
| T1 | 1 | 9 μH, 3 A, 1 : 1.5 : 1.5, 13 mm × 11 mm × 10 mm | Coilcraft | ZB1056-AE |
| U1 | 1 | LM25183-Q1 PSR flyback converter, VSON-8, AEC-Q100 | Texas Instruments | LM25183QNGURQ1 |