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SLM6635

Public Made by Adom

by adom

SOLA IC Battery Management, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SLM6635

SOLA IC · Battery Management · ESOP-8

SLM6635 from SOLA IC, in a ESOP-8. 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 VCC power_in Positive input supply voltage that powers the internal circuit; DC characteristics specify 4V to 6V (5V typical), and when VCC drops to within 30mV of the BAT pin voltage the device enters low power mode, dropping IBAT below 2μA.
2 PROG passive Charge current program pin; a 1% resistor RPROG connected to ground sets the charge current (249 ohm for 3A, 412 ohm for 2A, 1.08K ohm for 1A per the datasheet table).
3 NSTDBY output Open-drain charge terminated status output that is pulled low by an internal switch (VNSTDBY 0.3V to 0.6V at 5mA) to indicate end of charge, and is high impedance otherwise.
4 NCHRG output Open-drain charge status output that is pulled low by an internal switch during charging (VNCHRG 0.3V to 0.6V at 5mA) and is high impedance otherwise.
5 TS input Chip enable and battery NTC temperature sense input; a voltage below 45% or above 80% of VCC suspends charging, tying TS to VCC disables temperature sensing, and grounding TS disables the chip and terminates the charge.
6 BAT power_out Battery connection pin that supplies charge current to the battery and regulates battery voltage at 4.35V (±1%); BAT current drops below 2μA in disable or sleep mode.
7 GND power_in Ground reference pin for the charger.
8 LX output External inductor connecting pin for the synchronous buck switching node; the datasheet recommends an inductor between 2.2uH and 10uH, with 3.3uH for 3A applications.
9 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer SOLA IC
Package ESOP-8
Category Power Management (PMIC)
Pins 9

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Input supply voltage Vcc 4 5 6 V 4
Regulated output voltage VFLOAT 4.307 4.35 4.394 V 0℃≤TA≤85℃, RPV=1Kohm 4
Standby mode input supply current (charge ends) ICC 70 280 uA Standby mode (charge ends) 4
Shutdown mode input supply current ICC 45 280 uA Shutdown mode (RPROG not connected, VCC<VBAT or VCC<VUV) 4
BAT pin current, current mode IBAT 1.8 2 2.2 A RPI=412ohm, current mode (Test condition VBAT=3.8V) 4
BAT pin current, current mode IBAT 2.7 3 3.3 A RPI=249ohm, current mode (Test condition VBAT=3.8V) 4
BAT pin current, standby mode IBAT 0 -2.7 -5 uA Standby mode, VBAT=4.4V 4
BAT pin current, shutdown mode IBAT -2 0.7 2 uA Shutdown mode (RPROG not connected) 4
Trickle charge threshold voltage VTRIKL 2.8 2.9 3 V RPI=249ohm, VBAT rising 5
Trickle charge hysteresis voltage VTRHYS 60 100 140 mV RPI=249ohm 5
VCC under voltage lockout threshold VUV 3.85 4 4.15 V Vcc from low to high 5
VCC under voltage lockout hysteresis VUVHYS 150 200 300 mV 5
VCC-VBAT lockout threshold voltage VASD 120 200 300 mV Vcc from low to high 5
VCC-VBAT lockout threshold voltage VASD 20 40 60 mV Vcc from low to high 5
C/10 termination current threshold ITERM 250 350 450 mA RPI=249ohm 5
NCHRG pin output low voltage VNCHRG 0.3 0.6 V INCHRG=5mA 5
NSTDBY pin output low voltage VNSTDBY 0.3 0.6 V INSTDBY=5mA 5
The voltage at TS increase VTS-H 80 82 %Vcc 5
The voltage at TS decrease VTS-L 43 45 %Vcc 5
Recharge battery threshold voltage ΔVRECHRG 100 150 250 mV VFLOAT-VRECHRG 5
Switching frequency Fosc 0.7 0.8 0.9 MHz 5
Recharge comparator filter time tRECHRG 0.8 1.8 4 ms VBAT from high to low 5
Termination comparator filter time tTERM 0.8 1.8 4 ms IBAT below ICHR/10 5
Input supply voltage (absolute maximum) Vcc -0.3 6.5 V 1
BAT pin voltage (absolute maximum) BAT -0.3 7 V 1
LX pin voltage (absolute maximum) LX -0.3 7 V 1
VS pin voltage (absolute maximum) VS -0.3 7 V 1
NCHRG pin voltage (absolute maximum) NCHRG -0.3 7 V 1
NSTDBY pin voltage (absolute maximum) NSTDBY -0.3 7 V 1
TS pin voltage (absolute maximum) TS -0.3 7 V 1
Maximum junction temperature 145 ℃ 1
Operating temperature range -40 85 ℃ 1
Storage temperature range -65 125 ℃ 1
Lead temperature (soldering) 260 ℃ Soldering, 10 sec 1
Thermal protection temperature TLIM 145 ℃ 5
On-resistance of P-FET RPFET 50 mΩ 5
On-resistance of N-FET RNFET 50 mΩ 5
Trickle charge current ITRIKL 600 mA VBAT<VTRIKL, RPI=249ohm 4
Soft-start time tss 20 us IBAT=0 to IBAT=1.200V/RPROG 5

CAD (KiCad official)

  • Symbol: SLM6635
  • Footprint: Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm
  • 3D model: ESOP-8 (KiCad packages3D, STEP)
  • 3D model files: slm6635-etched.step / slm6635-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); slm6635.step / slm6635.glb are the bare package body.

Provenance

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

  • Datasheet: SOLA IC datasheet (11 pp, sha256 2cffccb7ab44ea89, retrieved 2026-10-18, 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