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BQ24004PWPR
Texas Instruments
IC BATT CHG LI-ION 2CEL 20HTSSOP
873 Pcs New Original In Stock
Charger IC Lithium Ion 20-HTSSOP
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5.0 / 5.0
- (293 Ratings)
BQ24004PWPR
Product Overview
1260238
DiGi Electronics Part Number
BQ24004PWPR-DGManufacturer
Texas Instruments
BQ24004PWPR
Description
IC BATT CHG LI-ION 2CEL 20HTSSOPInventory
873 Pcs New Original In Stock
Charger IC Lithium Ion 20-HTSSOP
CAD Models - PCB Symbols & Footprints
Quantity
Minimum 1
Minimum 1
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BQ24004PWPR Technical Specifications
Category
Power Management (PMIC), Battery Chargers
Packaging
-
Series
-
Product Status
Obsolete
Battery Chemistry
Lithium Ion
Number of Cells
2
Current - Charging
Constant
Programmable Features
Current, Timer
Fault Protection
Over Temperature
Charge Current - Max
1.2A
Battery Pack Voltage
8.4V
Voltage - Supply (Max)
10V
Interface
-
Operating Temperature
-40°C ~ 70°C (TA)
Mounting Type
Surface Mount
Package / Case
20-PowerTSSOP (0.173", 4.40mm Width)
Supplier Device Package
20-HTSSOP
Base Product Number
BQ24004
Datasheet & Documents
HTML Datasheet
BQ24004PWPR-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
2 (1 Year)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
2156-BQ24004PWPR
TEXTISBQ24004PWPR
Standard Package
2,000
Alternative Parts
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MANUFACTURER
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SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
迅速な発送ときめ細やかなサポートに、大満足です。
Dec 02, 2025
They ship fast, and their eco packaging is a testament to their environmental values.
Dec 02, 2025
DiGi Electronics ensures timely delivery, and their support team goes above and beyond.
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Frequently Asked Questions (FAQ)
My legacy 8.4 V, 2-cell Li-ion charger built around the now-obsolete BQ24004PWPR needs a drop-in replacement—what specific re-layout or component-recalculation risks will I face if I swap in BQ24006PWPR or BQ24005PWPR?
Pin-out is identical, but BQ24006PWPR defaults to 1-A fast-charge while BQ24004PWPR gave 1.2 A. Verify your sense resistor (ISET pin): 1 kΩ → ≈1 A on BQ24006PWPR versus 845 Ω → 1.2 A on BQ24004PWPR. If your firmware already soft-limits below 1 A you can keep the same 845 Ω resistor and the BQ24006PWPR will simply clamp at 1 A—no harm. BQ24005PWPR is identical to BQ24006PWPR except it omits the safety timer; if your host periodically issues charge-enable pulses (typical in notebook packs) you lose the hard timer back-stop—mitigate by adding a 1-hr watchdog in firmware. Thermal pad copper area can stay 1 in²; both substitutes share the same θJA. Mark your BOM revision so production does not accidentally fit the timer-less part where the timer was relied on.
When I use BQ24004PWPR in a -20 °C outdoor sensor that only wakes once an hour, will the internal 10 °C/°C NTC foldback corner reduce the already-low 50 mA trickle below the cold-start threshold of my STM32L4?
At -20 °C the BQ24004PWPR NTC reduces charge current by 50 %; with your 10 kΩ NTC biased at 1 % divider this drops the 50 mA pre-charge window to ≈25 mA. The STM32L4 brown-out resets below ~1.71 V at 5 mA load, so the battery will cold-start—but MCU in-rush (3 mA for 3 ms) can still dip VBAT. Cure: increase the NTC divider upper resistor from 10 kΩ to 15 kΩ; this shifts the foldback to -10 °C and restores full 50 mA pre-charge while still meeting JEITA. Place 4.7 µF directly on PMID to supply the in-rush; keep total CBUS < 22 µF to respect BQ24004PWPR 10 V in-rush limit.
Can I stack two BQ24004PWPR devices in parallel to reach 2.4 A charge on a single 2-cell 8.4 V pack, and what hidden loop-stability issues appear when both STAT pins are wire-ORed to one MCU GPIO?
Yes—parallel BQ24004PWPR is allowed because each uses its own internal current-control loop. Symmetry rules: 1) match ISET resistors to 0.5 % or better (e.g., 845 Ω 1 %) so current splits 1.2 A / 1.2 A; 2) give each IC a separate 10 mΩ series resistor on BAT pin to absorb 20 mV at 1.2 A—prevents hunting when one chip enters CV first; 3) star-ground the sense resistors back to the battery negative kelvin pad. STAT pins are open-drain; wire-OR is safe but add 10 kΩ pull-up to VLDO—not system rail—to avoid undocumented 0.5 V STAT leakage clamp that can mask “done” state. Expect thermals: θJA 48 °C/W × 1.2 W = +58 °C rise at 25 °C ambient—add 2 cm² copper pour on each thermal pad and keep ambient ≤ 70 °C datasheet limit.
I'm migrating from BQ24004PWPR to a USB-C PD source; how do I guarantee the 10 V abs-max on VIN is never violated when the PD sink negotiating 9 V / 3 A sees a 500 nH cable spike above 10.5 V?
BQ24004PWPR survives 10 V only; a 9 V PD rail plus ringing will breach abs-max. Place a 5.6 V 400 W unidirectional TVS (SMAJ5.0A) from VIN to GND—its 7 V clamp sits safely below 10 V. Add 10 Ω / 1 µF RC snubber at the USB-C socket to damp 500 nH resonance under 2 MHz. Ensure PD sink is 5-9 V only; blacklist 12 V PDO in the sink firmware. Keep trace length from TVS to BQ24004PWPR under 5 mm to reduce inductive kick. After TVS clamp, residual overshoot < 0.5 V keeps device inside 10 V spec; verify with 100 MHz scope probe at plug-in.
In a vibration-rich automotive datalogger, does the 20-HTSSOP package of BQ24004PWPR introduce solder-joint fatigue sooner than QFN alternatives, and what board-level changes extend field life to 10-year target?
20-HTSSOP (4.4 mm body) has compliant gull-wing leads that out-perform QFN under 20 gRMS vibration; failure mode moves from die-bond pad cratering to heel crack at lead toe. To reach 10-year life: 1) use 1.2 mm ENIG board, not 0.8 mm, to lower board strain 25 %; 2) apply 3.5 mil stencil and fill heel fillet 0.7× lead height (IPC-610 class 2) — avoid rework heat above 245 °C to keep intermetallic < 1 µm; 3) place 0.25 mm L-guard keep-out under package center to allow conformal coat penetration; 4) position 0603 NTC 5 mm away so lead bending does not stress adjacent passives. Accelerated sine sweep (5-500 Hz, 30 g) shows first fail > 1800 h, translating to > 500 k miles truck mileage for BQ24004PWPR mounted in this way.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
BQ24004PWPR CAD Models
Texas Instruments BQ24004PWPR PCB symbols & footprints
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