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Contents

README

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L9780TR

STMicroelectronics · Power Management - Specialized · LQFP-48(7x7)

L9780TR from STMicroelectronics, in a LQFP-48(7x7). 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 TG1 passive Switching TAG resistor pin for channel 1, connected internally to OUT1 through a TG switch of about 4 Ω.
2 SNS input VCCS sense pin with a specified SNS common mode range of -2 V to 2.4 V and a short-to-ground threshold of 175 to 225 mV for the positive side.
3 TST1 input Test mode pin 1, rated from -0.3 V to 40 V.
4 INRC input Reference cell input, rated from -0.3 V to +40 V, with a short-to-ground threshold of 175 to 225 mV.
5 RCT1 passive Impedance test pin 1, rated from -0.3 V to +40 V.
6 RCT2 input Impedance test amplifier input, rated from -0.3 V to +40 V.
7 SR passive Sensor return pin, rated from -VCCA to +40 V, with short-to-battery diagnostic on functional ground.
8 PG1 output Protection FET gate driver for channel 1, with output swing from 0 to 100 mV low and VCCA minus 0.1 V high at ±10 µA.
9 PG2 output Protection FET gate driver for channel 2, with output swing from 0 to 100 mV low and VCCA minus 0.1 V high at ±10 µA.
10 HD input Heater FET drain, rated from -0.3 V to 53 V with a leakage current of up to 150 µA at 53 V.
11 TST2 input Test mode pin 2, rated from -0.3 V to 40 V.
12 HG output Heater FET gate driver output, swinging from 0 to 100 mV low to VCCA minus 0.2 V high at ±10 µA.
13 SY input Synchronous mode pin, rated from -0.3 V to VCCI + 0.3 V.
14 PW input Heater PWM input pin, rated from -0.3 V to VCCI + 0.3 V.
15 SO output Serial data output of the SPI, rated from -0.3 V to VCCI + 0.3 V.
16 CLK input SPI clock input, rated from -0.3 V to VCCI + 0.3 V.
17 SI input Serial data input of the SPI, rated from -0.3 V to VCCI + 0.3 V.
18 CSN input SPI chip select input, rated from -0.3 V to VCCI + 0.3 V.
19 VCCI power_in Digital transfer level supply, rated 3.14 V to 5.1 V.
20 GNDD power_in Digital ground.
21 VCCD power_in Digital supply, rated 4.9 V to 5.1 V.
22 n.c. unconnected Not connected pin.
23 n.c. unconnected Not connected pin.
24 n.c. unconnected Not connected pin.
25 C1B passive Compensation network pin 1, side B, rated from -0.3 V to VCCA + 0.3 V.
26 C2B passive Compensation network pin 2, side B, rated from -0.3 V to VCCA + 0.3 V.
27 C3 passive Compensation network common pin, rated from -0.3 V to VCCA + 0.3 V.
28 C2A passive Compensation network pin 2, side A, rated from -0.3 V to VCCA + 0.3 V.
29 C1A passive Compensation network pin 1, side A, rated from -0.3 V to VCCA + 0.3 V.
30 FV passive VCCS filtered control voltage pin, rated from -0.3 V to VCCA + 0.3 V.
31 FVOUT output Analog output of the FVOUT amplifier, rated from -0.3 V to VCCA + 0.3 V.
32 BG passive Bandgap voltage pin, rated from -0.3 V to VCCA + 0.3 V.
33 CL2 passive VCCS voltage clamp channel 2, rated from -0.3 V to VCCA + 0.3 V.
34 CL1 passive VCCS voltage clamp channel 1, rated from -0.3 V to VCCA + 0.3 V.
35 n.c. unconnected Not connected pin.
36 n.c. unconnected Not connected pin.
37 VCCCP power_in Charge pump supply, rated 4.9 V to 5.1 V.
38 FLCP1 passive Charge pump floating pin 1, rated from -0.3 V to VCCCP + 0.3 V.
39 FLCP2 passive Charge pump floating pin 2, rated from CP - 0.3 V to +0.3 V.
40 GNDCP power_in Charge pump analog ground.
41 CP power_out -5 V charge pump output, rated from -6.5 V to +0.3 V.
42 VESD passive ESD reference voltage, rated at 40 V in the maximum ratings and +53 V absolute maximum.
43 GNDA power_in Analog ground.
44 VCCA power_in Analog supply, rated 4.9 V to 5.1 V.
45 n.c. unconnected Not connected pin.
46 TG2 passive Switching TAG resistor pin for channel 2, connected internally to OUT2 through a TG switch of about 4 Ω.
47 OUT2 output Pump cell output pin for channel 2, driving the VCCS with a maximum RTOT drop of 1.8 V against SNS.
48 OUT1 output Pump cell output pin for channel 1, driving the VCCS with a maximum RTOT drop of 1.8 V against SNS.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package LQFP-48(7x7)
Category Power Management (PMIC)
Pins 48

CAD (KiCad official)

  • Symbol: L9780TR
  • Footprint: Package_QFP:LQFP-48_7x7mm_P0.5mm
  • 3D model: LQFP-48(7x7) (KiCad packages3D, STEP)
  • 3D model files: l9780tr-etched.step / l9780tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); l9780tr.step / l9780tr.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (56 pp, sha256 bf560dfa5f013e54, retrieved 2026-10-07, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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