Part Number: BQ2004 Hello team,
Could you please help me to answer customer questions below?
The charging current is determined by the resistor RSNS between SNS pin and GND, correct?
The allowed RSNS power is calculated from IREG^2 * RSNS. When…
Hi Vadym,
VEDV = 0.4 ∗ VCC ± 30mV. The DCMD input is used to command discharge-before charge via the DIS output. Once activated, DIS becomes active (high) until VCELL falls below VEDV, at which time DIS goes low and a new fast charge cycle begins. The…
Hi Kedar,
Yes, I see that V_CELL is not an actual battery voltage but V_BAT voltage that's defined by voltage divider between BAT and SNS pins on the BQ2004.
So for 12-cell RB1 = 40k, which at nominal battery voltage(14.4V) an actual V_CELL = 12V…
Part Number: BQ2004 The thermistor to be set in BQ2004 is planned to be 103KAT-4/SEMIETC. The heat dissipation and heat time constants are different from the 103AT-2/SEMIETC described in DV2004L1, what values should be set for RT1 and RT2?
Best…
Part Number: BQ2004 Is there a limit to the input order of VIN and VCC of bq2004?
Normally it is VIN-->LDO (DCDC --> VCC this time). If batteries are present, I think the VCC will be powered first.
I attached block diagram. Could you please check…
Part Number: BQ2004 Other Parts Discussed in Thread: BQ24725A , BQ24610 , BQ24170 Hi E2E support team,
Our customer request 4 cells 1520mAh NiMH pack(4S1P: 1.2Vx4 = 4.8V) with trickle charging supported. Please advise how to config BQ2004 with default…
Part Number: BQ2004 Other Parts Discussed in Thread: BQ24190 Dear E2E,
customer is looking for NiMH battery charger solution with the function of over-discharge protection.
I didn't see power path FET in reference circuit. could this part have the…
Part Number: BQ2004 I try to charge a two or three cell NIMH Akku using a BQ2004H.
Charging stops always after 23 minutes.
Can You give me a Hint what i am doing wrong?
Regards Fabian
Here is the configuration:
VCC 5V stabilized
DCMD VCC …
Hi Kevin,
Yes, Delta T/ Delta t and maximum voltage detection (Peak Voltage Detection (PVD)) will occur simultaneously and if one or more of these conditions are satisfied, then termination will occur. For PVD, VSEL should be pulled high, and for -delta…
