BQ51050BYFPR
Qi Wireless Power Receiver and Li-Ion ChargerThe BQ51050BYFPR is a qi wireless power receiver and li-ion charger from Texas Instruments. View the full BQ51050BYFPR datasheet below including key specifications, electrical characteristics, absolute maximum ratings.
BQ51050BYFPR shares its datasheet with BQ51050B, whose page lists every part number it covers.
Official BQ51050BYFPR datasheet (PDF) — the source this page was extracted from.
BQ51050BYFPR Key Specifications
| Parameter | Value |
|---|---|
| Packaging | MouseReel |
| Standard Pack Qty | 3000 |
| Charging Current | up to 1.5 A |
| Battery Chemistry | Li-Ion / Li-Pol |
| Power Stage Rdson | 100 mΩ typical |
| Wireless Standard | WPC v1.2 Qi |
| Package Dimensions | 3.00 mm × 1.90 mm (DSBGA 28) |
| Moisture Sensitivity Level | Level-1-260C-UNLIM |
| Operating Temperature Range | 0 to 125 °C |
| Peak AC-DC Charging Efficiency | 93% |
| Maximum Input Voltage Tolerance | 20 V |
| Output Voltage Options (Family) | 4.20 V, 4.35 V, 4.40 V |
BQ51050BYFPR Overview
Part: bq51050B, bq51051B, bq51052B — Texas Instruments
Type: Wireless Power Receiver and Battery Charger
Description: Qi v1.2-compliant wireless power receiver and Li-Ion/Li-Pol direct battery charger supporting up to 1.5 A charging current with 93% peak AC-DC efficiency.
Operating Conditions:
- Supply voltage: 4 to 10 V (RECT input voltage range)
- Operating temperature: 0 to 125 °C (junction temperature)
- Maximum battery charge current: 1.5 A
- Adapter voltage (AD): up to 15 V
Absolute Maximum Ratings:
- Max supply voltage: 20 V (RECT, COMM1, COMM2, BAT, CHG, CLAMP1, CLAMP2), 30 V (AD, AD-EN)
- Max continuous current: 2 A(RMS) (Input current AC1, AC2), 1.5 A (Output current BAT)
- Max junction/storage temperature: 150 °C
Key Specs:
- Peak AC-DC charging efficiency: 93%
- Battery regulation voltage options: 4.20 V (bq51050B), 4.35 V (bq51051B), 4.40 V (bq51052B)
- Maximum output charge current: 1.5 A
- Input overvoltage tolerance: 20 V
- Power stage MOSFET typical on-resistance: 100 mΩ
Features:
- Single-stage wireless power receiver, rectifier, and Li-Ion/Li-Pol battery charger
- WPC v1.2 Qi industry standard compliant
- Power stage output tracks rectifier and battery voltage to maximize efficiency across the charge cycle
- Integrated thermal shutdown, overcurrent protection, temperature monitoring, and fault detection
Applications:
- Battery packs
- Cell phones and smart phones
- Headsets
- Portable media players
- Other handheld devices
Package:
- VQFN-20 (4.50 mm × 3.50 mm)
- DSBGA-28 (3.00 mm × 1.90 mm)
BQ51050BYFPR Features
- 1 · Single-Stage Wireless Power Receiver and Li-Ion/Li-Pol Battery Charger
- -Combines Wireless Power Receiver, Rectifier, and Battery Charger in a Single, Small Package
- -4.20-V, 4.35-V, and 4.40-V Output Voltage Options
- -Supports a Charging Current up to 1.5 A
- -93% Peak AC-DC Charging Efficiency
BQ51050BYFPR Applications
- Battery Packs
- Cell Phones and Smart Phones
- Headsets
- Portable Media Players
- Other Handheld Devices
1
BQ51050BYFPR Pin Configuration
YFP Package
28-Pin DSBGA
Top View
A
B
C
D
E
F
G
AC1
BOOT1
BAT
CLAMP1
COMM1
CHG
AD-EN
AD
2
3
4
5
6
7
8
9
RHL Package
20-Pin VQFN With Exposed Thermal Pad
Top View
PGND
1
10
PGND
20
11
TERM
EN2
The exposed thermal pad should be
connected to ground.
Thermal
Pad
19
AC2
18
RECT
17
BOOT2
16
CLAMP2
15
COMM2
14
FOD
13
TS/CTRL
12
ILIM
BQ51050BYFPR Electrical Characteristics
Over junction temperature range 0°C ≤ TJ ≤ 125°C and recommended supply voltage (unless otherwise noted)
| PARAMETER | PARAMETER | TEST CONDITIONS | TEST CONDITIONS | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|---|---|
| V UVLO | Undervoltage lockout | V RECT : 0 V → 3 V | V RECT : 0 V → 3 V | 2.6 | 2.7 | 2.8 | V |
| V HYS-UVLO | Hysteresis on UVLO | V RECT : 3 V → 2 V | V RECT : 3 V → 2 V | 250 | mV | ||
| V OVP | Input overvoltage threshold | V RECT : 5 V → 16 V | V RECT : 5 V → 16 V | 14.5 | 15 | 15.5 | V |
| V HYS-OVP | Hysteresis on OVP | V RECT : 16 V → 5 V | V RECT : 16 V → 5 V | 150 | mV | ||
| V RECT-REG (1) | V RECT regulation voltage | 5.11 | V | ||||
| I LOAD | I LOAD Hysteresis for dynamic V RECT thresholds as a % of I ILIM | I LOAD falling | I LOAD falling | 5% | |||
| V TRACK | Tracking V RECT regulation above V BAT | V BAT = 3.5 V, I BAT ≥ 500 mA | V BAT = 3.5 V, I BAT ≥ 500 mA | 300 | mV | ||
| V RECT-REV | Rectifier reverse voltage protection at the BAT(output) | V RECT-REV = V BAT - V RECT , V BAT = 10 V | V RECT-REV = V BAT - V RECT , V BAT = 10 V | 8.3 | 9 | V | |
| V RECT-DPM | Rectifier undervoltage protection, restricts I BAT at V RECT-DPM | 3 | 3.1 | 3.2 | V | ||
| QUIESCENT CURRENT | QUIESCENT CURRENT | QUIESCENT CURRENT | QUIESCENT CURRENT | QUIESCENT CURRENT | QUIESCENT CURRENT | QUIESCENT CURRENT | QUIESCENT CURRENT |
| I | Active chip quiescent current consumption from RECT | I BAT = 0 mA, 0°C ≤ T J ≤ 85°C | I BAT = 0 mA, 0°C ≤ T J ≤ 85°C | 8 | 10 | mA | |
| RECT | (when wireless power is present) | I BAT = 300 mA, 0°C ≤ T J ≤ 85°C | I BAT = 300 mA, 0°C ≤ T J ≤ 85°C | 2 | 3 | mA | |
| I Q | Quiescent current at the BAT when wireless power is disabled (Standby) | V BAT = 4.2 V, 0°C ≤ T J ≤ 85°C | V BAT = 4.2 V, 0°C ≤ T J ≤ 85°C | 12 | 20 | μA | |
| ILIM SHORT PROTECTION | ILIM SHORT PROTECTION | ILIM SHORT PROTECTION | ILIM SHORT PROTECTION | ILIM SHORT PROTECTION | ILIM SHORT PROTECTION | ILIM SHORT PROTECTION | ILIM SHORT PROTECTION |
| R ILIM-SHORT | Highest value of ILIM resistor considered a fault (short). | R ILIM : 200 Ω → 50 Ω . I BAT latches off, cycle power to | bq51050B, bq51051B | 120 | Ω | ||
| R ILIM-SHORT | Monitored for I BAT > I LIM_SHORT, OK | reset | bq51052B | 235 | |||
| t DGL-Short | Deglitch time transition from ILIM short to I BAT disable | 1 | ms | ||||
| I LIM_SHORT, OK | I LIM-SHORT,OK enables the I ILIM short comparator when I BAT is greater than this value | I BAT : 0 mA → 200 mA | bq51050B, bq51051B | 110 | 145 | 165 | mA |
| I LIM_SHORT, OK | bq51052B | 55 | 75 | 95 | |||
| I LIM-SHORT, OK HYSTERESIS | Hysteresis for I LIM-SHORT,OK comparator | I BAT : 200 mA → 0 mA | I BAT : 200 mA → 0 mA | 30 | mA | ||
| I BAT-CL | Maximum output current limit | Maximum I BAT that will be delivered for up to 1 ms when ILIM is shorted to PGND | Maximum I BAT that will be delivered for up to 1 ms when ILIM is shorted to PGND | 2.4 | A | ||
| BATTERY SHORT PROTECTION | BATTERY SHORT PROTECTION | BATTERY SHORT PROTECTION | BATTERY SHORT PROTECTION | BATTERY SHORT PROTECTION | BATTERY SHORT PROTECTION | BATTERY SHORT PROTECTION | BATTERY SHORT PROTECTION |
| V BAT(SC) | BAT pin short-circuit detection/precharge threshold | V BAT : 3 V → 0.5 V, no deglitch | V BAT : 3 V → 0.5 V, no deglitch | 0.75 | 0.8 | 0.85 | V |
| V BAT(SC)-HYS | V BAT(SC) hysteresis | V BAT : 0.5 V → 3 V | V BAT : 0.5 V → 3 V | 100 | mV | ||
| I BAT(SC) | Source current to BAT pin during short-circuit detection | V BAT = 0 V | bq51050B, bq51051B | 12 | 18 | 22 | mA |
| I BAT(SC) | bq51052B | 12 | 18 | 25 | |||
| VOLTAGE REGULATION PHASE | VOLTAGE REGULATION PHASE | VOLTAGE REGULATION PHASE | VOLTAGE REGULATION PHASE | VOLTAGE REGULATION PHASE | VOLTAGE REGULATION PHASE | VOLTAGE REGULATION PHASE | VOLTAGE REGULATION PHASE |
| I EndTrack | I BAT threshold during Voltge Regulation Phase that | I BAT decreasing | bq51050B, bq51051B | 0.35 * I BULK | mA | ||
| I EndTrack | changes V RECT level from V BAT +V TRACK to V RECT-REG | I BAT decreasing | 0.05 * | mA | |||
| I EndTrack | I BAT decreasing | bq51052B | I BULK | mA |
BQ51050BYFPR Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)
| MIN | MAX | UNIT | ||
|---|---|---|---|---|
| Input voltage | RECT, COMM1, COMM2, BAT, CHG, CLAMP1, CLAMP2 | -0.3 | 20 | V |
| Input voltage | AC1, AC2 | -0.8 | 20 | V |
| Input voltage | AD, AD-EN | -0.3 | 30 | V |
| Input voltage | BOOT1, BOOT2 | -0.3 | 26 | V |
| Input voltage | EN2, TERM, FOD, TS/CTRL, ILIM | -0.3 | 7 | V |
| Input current | AC1, AC2 | 2 | A(RMS) | |
| Output current | BAT | 1.5 | A | |
| Output sink current | CHG | 15 | mA | |
| Output sink current | COMM1, COMM2 | 1.0 | A | |
| Junction temperature, T J | Junction temperature, T J | -40 | 150 | °C |
| Storage temperature, T stg | Storage temperature, T stg | -65 | 150 | °C |
BQ51050BYFPR Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
| MIN | MAX | UNIT | ||||
|---|---|---|---|---|---|---|
| V IN | Input voltage range | RECT | RECT | 4 | 10 | V |
| I IN | Input current | Internal Rectifier (voltage monitored at RECT node) | Internal Rectifier (voltage monitored at RECT node) | 1.5 | A | |
| I BAT | BAT(output) current | BAT | bq51050B, bq51051B | 1.5 | A | |
| V AD | Adapter voltage | AD | bq51052B | 0.8 15 | V | |
| I AD-EN | Sink current | AD-EN | 1 | mA | ||
| I COMM | COMM sink current | COMM | COMM | 500 | mA | |
| T J | Junction temperature | Junction temperature | Junction temperature | 0 | 125 | °C |
BQ51050BYFPR Thermal Information
| THERMAL METRIC (1) | bq51050B, bq51051B, bq51052B - YFP (DSGBA) - 28 PINS | bq51050B, bq51051B, bq51052B - RHL (VQFN) - 20 PINS | UNIT | |
|---|---|---|---|---|
| R θ JA | Junction-to-ambient thermal resistance | 58.9 | 37.7 | °C/W |
| R θ JC(top) | Junction-to-case (top) thermal resistance | 0.2 | 35.5 | °C/W |
| R θ JB | Junction-to-board thermal resistance | 9.1 | 13.6 | °C/W |
| ψ JT | Junction-to-top characterization parameter | 1.4 | 0.5 | °C/W |
| ψ JB | Junction-to-board characterization parameter | 8.9 | 13.5 | °C/W |
BQ51050BYFPR Typical Application
Variants on the same datasheet
These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.
| Part Number | Manufacturer | Package |
|---|---|---|
| BQ51050B | Texas Instruments | — |
| BQ51050BRHLR | Texas Instruments | VQFN-20 |
| BQ51050BRHLR.A | Texas Instruments | VQFN-20 |
| BQ51050BRHLT | Texas Instruments | VQFN (20) |
| BQ51050BRHLT.A | Texas Instruments | VQFN-20 |
| BQ51050BYFPR.A | Texas Instruments | DSBGA-28 |
| BQ51050BYFPR.B | Texas Instruments | DSBGA-28 |
| BQ51050BYFPT | Texas Instruments | DSBGA-28 |
| BQ51050BYFPT.A | Texas Instruments | DSBGA-28 3.00x1.90mm |
| BQ51050BYFPT.B | Texas Instruments | DSBGA-28 3.00x1.90mm |
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- BQ24075 – Texas Instruments, Standalone 1-Cell 1.5-A Linear Battery Chargers with Power Path
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