# EG1615

**EG Micro** · New Arrivals · LQFP-64(10x10)

EG1615 from EG Micro, in a LQFP-64(10x10). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | TXD2 | output | UART2 serial data transmit output. |
| 2 | HVPWM1 | output | Push-pull PWM1 output for the transformer high-voltage side H-bridge. |
| 3 | LVPWMEN | input | Low-side H-bridge PWM enable; 1 starts LVPWMx output, 0 turns it off. |
| 4 | HVPWM2 | output | Push-pull PWM2 output for the transformer high-voltage side H-bridge. |
| 5 | HVPWMEN | input | High-side H-bridge PWM enable; 1 starts HVPWMx output, 0 turns it off. |
| 6 | SWDAT | input | Firmware upgrade data. |
| 7 | SWCLK | output | Firmware upgrade clock. |
| 8 | RXD2 | input | UART2 serial data receive input; must not float, needs a pull-up such as 10K to 3.3V. |
| 9 | Beep | output | Buzzer alarm output, active high. |
| 10 | LVPWM1 | output | Push-pull PWM1 output for the transformer low-voltage side H-bridge. |
| 11 | LVPWM2 | output | Push-pull PWM2 output for the transformer low-voltage side H-bridge. |
| 12 | RXD1 | input | UART1 serial data receive input; must not float, needs a pull-up such as 10K to 3.3V. |
| 13 | TXD1 | output | UART1 serial data transmit output. |
| 14 | SWHLD_OUT | output | On/off latch signal output for push-button switch applications. |
| 15 | GND | power_in | Chip ground. |
| 16 | VDD3 | power_in | Chip +3.3V supply (2.4V to 3.6V). |
| 17 | FAN_OUT | output | Fan control output, active high. |
| 18 | OSCIN | input | 8M crystal oscillator pin 1. |
| 19 | OSCOUT | output | 8M crystal oscillator pin 2. |
| 20 | NRST | input | Chip reset, active low. |
| 21 | VSSA | power_in | Analog section ground. |
| 22 | VDDA | power_in | Analog section +3.3V supply. |
| 23 | SDLIN1 | input | Driver 1 low-side MOSFET peak current protection input with 200mV internal reference. |
| 24 | COM1 | power_in | Driver 1 power ground. |
| 25 | LO1 | output | Driver 1 low-side gate drive output. |
| 26 | VDD12 | power_in | Driver 1 power supply, input range 10V to 20V. |
| 27 | NC | unconnected | No connection, left empty for high-voltage isolation. |
| 28 | NC | unconnected | No connection, left empty for high-voltage isolation. |
| 29 | SDHIN1 | input | Driver high-side MOSFET peak current protection input with 200mV internal reference (datasheet text says driver 2 but pin belongs to driver 1). |
| 30 | VS1 | output | Driver 1 high-side floating supply return output. |
| 31 | HO1 | output | Driver 1 high-side gate drive output. |
| 32 | VB1 | power_in | Driver 1 floating supply, needs external 10uF bootstrap capacitor. |
| 33 | SD1 | input | Driver 1 SD control input. |
| 34 | LIN1 | input | Driver 1 low-side control input, turns the low-side power MOSFET on/off. |
| 35 | HIN1 | input | Driver 1 high-side control input, turns the high-side power MOSFET on/off. |
| 36 | DT0 | input | Dead-time select bit 0 with DT1: 00=500nS, 01=700nS, 10=1.0uS, 11=1.5uS. |
| 37 | DT1 | input | Dead-time select bit 1 with DT0: 00=500nS, 01=700nS, 10=1.0uS, 11=1.5uS. |
| 38 | BATUV | input | Battery undervoltage detection; alarm at BATUV<1.65V, shutdown at BATUV<1.6V. |
| 39 | BATOV/CV | input | Battery overvoltage detection and charge constant-voltage input; alarm and shutdown at >2.5V, CV reference 2.4V. |
| 40 | IFB_HV | input | Transformer high-voltage side current feedback; >0.1V fan on, >0.6V overcurrent shutdown. |
| 41 | TFB1_DC | input | Temperature sense; <1.15V output off, >1.28V output restored. |
| 42 | VFB_HDC | input | High-voltage side DC voltage feedback via optocoupler; output off when VFB>3V. |
| 43 | IFB_BAT | input | Battery side current feedback input. |
| 44 | SW_VIN | input | On/off key voltage detection input (>1V is a key press). |
| 45 | SDLIN2 | input | Driver 2 low-side MOSFET peak current protection input with 200mV internal reference. |
| 46 | COM2 | power_in | Driver 2 power ground. |
| 47 | LO2 | output | Driver 2 low-side gate drive output. |
| 48 | VDD12 | power_in | Driver 2 power supply, input range 10V to 20V. |
| 49 | SDHIN2 | input | Driver 2 high-side MOSFET peak current protection input with 200mV internal reference. |
| 50 | VS2 | output | Driver 2 high-side floating supply return output. |
| 51 | HO2 | output | Driver 2 high-side gate drive output. |
| 52 | VB2 | power_in | Driver 2 floating supply, needs external 10uF bootstrap capacitor. |
| 53 | NC | unconnected | No connection, left empty for high-voltage isolation. |
| 54 | NC | unconnected | No connection, left empty for high-voltage isolation. |
| 55 | SD2 | input | SD control input (datasheet text says driver 1, but it is SD2 for driver 2). |
| 56 | LIN2 | input | Driver 2 low-side control input, turns the low-side power MOSFET on/off. |
| 57 | HIN2 | input | Driver 2 high-side control input, turns the high-side power MOSFET on/off. |
| 58 | LEDG | output | Run LED indicator output. |
| 59 | LEDR | output | Fault LED indicator output. |
| 60 | CHGON_IN | input | Charge (buck) mode enable signal input. |
| 61 | BRK_SD | input | Short-circuit protection input. |
| 62 | CHG_ISET | input | Charge current setting; 0-3.3V input. |
| 63 | Test_Mode | input | Mode select, 0 normal, 1 test with open-loop PWM; must not float, tie to GND when unused. |
| 64 | FADJ | input | PWM frequency adjust; 0-3.3V corresponds to 40kHz-150kHz. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | EG Micro |
| Package | LQFP-64(10x10) |
| Category | Others |
| Pins | 64 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VDD3/VDDA supply voltage | VDD3, VDDA | 2.4 | 3.3 | 3.6 | V | TA=25℃, OSC=8MHz | 15 |
| Driver supply voltage | VDD12 | 10 | 12 | 18 | V | TA=25℃, OSC=8MHz | 15 |
| High-side driver supply VB-VS | VB1-VS1, VB2-VS2 | 10 | 12 | 18 | V | VB relative to VS | 15 |
| VDD12 quiescent current | Ivdd12 |  | 1 | 1.5 | mA | VDD12=12V | 15 |
| VDD quiescent current | Ivdd3 + Ivdda |  | 5 | 20 | mA | VDD=3.3V | 15 |
| SD logic control input voltage | SD1, SD2 | 0 |  | 5 | V | relative to GND | 15 |
| IO output source current capability | IO+ | 1.8 | 2 |  | A |  | 15 |
| IO output sink current capability | IO- | 2 | 2.5 |  | A |  | 15 |
| High-side current comparator internal reference | SDHIN1, SDHIN2 |  | 200 |  | mV | relative to VS | 15 |
| Low-side current comparator internal reference | SDLIN1, SDLIN2 |  | 200 |  | mV | relative to COM | 15 |
| Peak feedback reference voltage | VFB_HDC |  | 3 |  | V | printed >3.0 | 15 |
| Battery undervoltage protection | BATUV |  | 1.6 |  | V | printed <1.6 | 15 |
| Battery overvoltage protection | BATOV/CV |  | 2.5 |  | V | printed >2.5 | 15 |
| Current protection reference voltage | IFB_HV |  | 0.6 |  | V | printed >0.6 | 15 |
| Overcurrent detection delay |  |  | 10 |  | mS |  | 15 |
| Fan turn-on voltage |  |  | 0.1 |  | V | printed >0.1 | 15 |
| Power key voltage detection | SW_VIN |  | 1 |  | V | printed >1 | 15 |
| Overtemperature protection value | TFB1_DC |  | 1.15 |  | V | printed <1.15 | 15 |
| Overtemperature protection exit value | TFB1_DC |  | 1.28 |  | V | printed >1.28 | 15 |
| Fan turn-on value | TFB1_DC |  | 2.3 |  | V | printed <2.3 | 15 |
| VDD3, VDDA supply voltage | VDD3, VDDA | -0.3 |  | 4 | V | relative to GND, TA=25℃ | 14 |
| VDD12 driver supply voltage | VDD12 | -0.3 |  | 20 | V | VDD_12V pin relative to GND | 14 |
| Bootstrap high-side VB supply | VB1, VB2 | -0.3 |  | 600 | V |  | 14 |
| High-side supply VS | VS1, VS2 | -20 |  | 0.3 | V | printed VB-20 to VB+0.3; values are offsets from VB | 14 |
| High-side driver output HO | HO1, HO2 | -0.3 |  | 0.3 | V | printed VS-0.3 to VB+0.3; offsets | 14 |
| Low-side driver output LO | LO1, LO2 | -0.3 |  |  | V | printed -0.3 to VDD12 | 14 |
| High-side SD comparator positive input | SDHIN1, SDHIN2 | -0.3 |  | 5 | V | printed VS-0.3 to VS+5; offsets from VS | 14 |
| Low-side SD comparator positive input | SDLIN1, SDLIN2 | -0.3 |  | 5.5 | V |  | 14 |
| SD logic control input | SD1, SD2 | -0.3 |  | 5.5 | V |  | 14 |
| High channel logic input | HIN1, HIN2 | -0.3 |  |  | V | printed -0.3 to VDD12 | 14 |
| Low channel logic input | LIN1, LIN2 | -0.3 |  |  | V | printed -0.3 to VDD12 | 14 |
| General I/O voltage | I/O | -0.3 |  | 4 | V | general I/O pin relative to GND | 14 |
| Max output sink current | Isink |  |  | 25 | mA |  | 14 |
| Max output source current | Isource |  |  | -25 | mA |  | 14 |
| Ambient temperature | TA | -40 |  | 105 | ℃ |  | 14 |
| Storage temperature | Tstr | -65 |  | 125 | ℃ |  | 14 |

## CAD (KiCad official)

- Symbol: `EG1615`
- Footprint: `Package_QFP:LQFP-64_10x10mm_P0.5mm`
- 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)
- 3D model files: `eg1615-etched.step` / `eg1615-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `eg1615.step` / `eg1615.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [EG Micro datasheet](docs/eg1615-datasheet.pdf) (37 pp, sha256 `c2ba5ad4cbbf2c56`, retrieved 2026-10-26, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/eg1615-datasheet.pdf)