Charging IC parameter data of 3A Synchronous Step-Down lithium battery SLM6610 parameter data: ------------------------------------------------------------------Value Maximum Rating  Input power supply voltage (Vcc): -0.3V~6.5V  BAT:-0.3V~7V  LX:-0.3V~7V  PROG:-0.3V~7V  NCHRG:-0.3V~7V  NSTDBY:-0.3V~7V  TS:-0.3V~7V  BAT Short Circuit Duration: Continuous  Maximum junction temperature: 145 C  Temperature range of working environment: - 40 ~85.  Storage Temperature Range: - 65 ~125.  Pin temperature (welding time 10 seconds): 260 C ----------------------------------------- characteristics  800KHz Fixed Switching Frequency  Up to 92% output efficiency  Adjustable output current of maximum 3.5A  Automatic identification of input current and adaptive adapter  Adjustable output voltage  No need for high precision milliohm resistance  No need for anti-backfilling current diode  No need for external power MOS transistors or continuous current diodes  4.2V Charging Voltage with Accuracy of <1%  Dual Output Charging State, Battery-free and Fault State Display  The supply current in standby mode is 70uA  2.9V trickle charging  Soft start limits surge current  Battery temperature monitoring function  Output Short Circuit Protection Function  8-pin DFN package Charging Current-Voltage Diagram --------------------------------------- Typical application ----------------------------------------------------- pin function Pi n 1 2 3 Na me VCC PROG NSTDBY 5 NCHRG TS 6 BAT 7 GND LX 4 8 Expla in Input power supply Charging Current Setting End Battery Charging Completion Indicator Battery Charging Indicator Enabling Control and Battery Temperature Detection Input Battery Voltage Detection Terminal land Switch end Sy mb ol Vcc p a r a m e t e r c o n d i t i o n mi ni mu m val ue Typ ical val ue Ma xi mu m val ue Co mp any 4.0 5 6.0 V Standby mode (charging termination) 70 280 UA Outage mode ( V c c < V o r BAT 45 280 UA Input power supply voltage Input power supply current Icc VCC<VUV) VFL OAT Stable Output RPV=1Kohm (Floating) Voltage 4.1 58 4.2 4.2 42 V BAT pin current: RPI = 412ohm, current mode 1.8 2.0 2.2 A test condition is V RPI = 249ohm, current mode = 3.8V)BAT Standby mode, VBAT = 4.2V 2.7 3.0 3.3 A 1 2.7 5 UA 0 0.7 5 UA (current mode IBAT Outage mode ( V c c < V o r BAT VCC<VUV) trickle charge current VBAT<VTRIKL, VTRI KL Trickle current charging threshold voltage RPI = 249 ohm, V 2.8 risingBAT VTR HYS Hysteresis Voltage RPI=249ohm of Trickle Current Charging VIN SL Input Voltage Drop Protection VUV V undervoltage ITRI KL 600 MA RPI = 249ohm, current mode 60 2.9 3.0 V 100 140 MV 4.6 5 From V Low to 3.8 4 V 4.1 V locking thresholdCC VUV HYS VAS D ITER M HighCC 5 V undervoltage latch-up hysteresisCC V-V Blocking Threshold VoltageCCBAT 150 200 250 MV Vcc from low to high 50 100 300 MV Vcc from high to low 10 20 60 MV 250 350 450 MA Charging Termination Current Threshold VNCHRG NCHRG pin output low 5 INCHRG=5m A 0.3 0.6 V INSTDBY=5m A 0.3 0.6 V 80 82 %Vcc voltage VNSTDBY NSTDBY pin output low level VTS-H TS pin high end flip voltage TS pin low-end 43 45 Threshold VFLOATVoltage of VRECHRG Rechargeabl e Battery 100 150 250 MV FOSC oscillation frequency 0.7 0.8 0.9 MHz RPFET P MOSFET "on" VTS-L %Vcc flip voltage Delta VRECHRG 50 M Omega 50 M Omega 145 Temperatu re resistance RNFET N MOSFET "On" Resistance TLIM Junction Temperature in Limited Temperature Model TSS Soft startup time TRECHRG Filtering time of rechargeabl e comparator TTERM 20 V from high to lowBAT Us 0.8 1.8 4 MS Termination IBAT dropped 0.8 comparator below ITERM filtering time 1.8 4 MS