Part Number: BQ2004H Configuration of the charger's pins
Pin name Pin number Configuration
DSEL 2 Gnd
VSEL 3 Float
TM1 4 Gnd
TM2 5 +5V - Vcc
Problem: Quick charge time is ~3 minutes. It should be ~154 minutes (Datasheet). Previous battery…
Part Number: BQ2004H
How long does the charge pending take? What is the BQ2004H waiting for?
I do not need thermistor thus I tied TS to 5V and set TCO at 1.8 V by resistor divider from 5V to GND; plus 15n cap from TCO to GND. Is this enough to lock…
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 …
I got the bq2004H EVM this afternoon and checked the fast charge timer. The fast charger timer is correct.
Would you order an EVM to check the early termination issue? With an EVM, you can confirm it is charger circuit issue or the battery pack issue…
Other Parts Discussed in Thread: BQ2004H We are using the BQ2004H for a mobile battery charger that could have any where from 1 to 4 batteries and we only have so much power we can use for charging the batteries.
I understand that the charge rate is…
Other Parts Discussed in Thread: BQ2004H , BQ2003 Hi
please find the circuit below, BQ2004H used as Linear mode charge controller and settings are as follows
a) Charge rate : C/8
b)Termination: -ΔV method and C/8
c) Auto discharge and Temperature…
Other Parts Discussed in Thread: BQ2004HBQ2004h datasheet states "Both pulse trickle & top-off may be disabled by tying TM1 & TM2 to Vss . . . . . "
My question is: When TM1 & TM2 are connected to Vss, are both charge-pending and fast charge complete…
I'm having a similar problem with the bq2004h chip.
built a prototype using bq2004 chip. worked good. built 10 production boards using the bq2004H chip, and none of them will go into fast charge mode.
led blinks "fast charge pending", then goes solid…
