BQ51050B
The BQ51050B is an electronic component from Texas Instruments. View the full BQ51050B datasheet below including electrical characteristics, absolute maximum ratings.
Manufacturer
Texas Instruments
Overview
Part: bq5105xB — Texas Instruments
Type: High-Efficiency Qi v1.2-Compliant Wireless Power Receiver and Battery Charger
Description: The bq5105xB is a single-stage, high-efficiency Qi v1.2-compliant wireless power receiver and Li-Ion/Li-Pol battery charger that supports charging currents up to 1.5 A with 93% peak AC-DC charging efficiency.
Operating Conditions:
- Output voltage options: 4.20-V, 4.35-V, and 4.40-V
- Max charging current: 1.5 A
Absolute Maximum Ratings:
- Max input voltage tolerance:
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
Applications
- Battery Packs
- Cell Phones and Smart Phones
- Headsets
- Portable Media Players
- Other Handheld Devices
1
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
18
17
16
15
14
13
12
AC2
RECT
BOOT2
CLAMP2
COMM2
FOD
TS/CTRL
ILIM
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 RECT | 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 | |
| (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 is greater than this value | I BAT : 0 mA → 200 mA | bq51050B, bq51051B | 110 | 145 | 165 | mA |
| I LIM_SHORT, OK | BAT | 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 |
SLUSB42F -JULY 2012-REVISED JUNE 2017
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 | A | |
| Junction temperature, T J | Junction temperature, T J | -40 | 150 | °C |
| Storage temperature, T stg | Storage temperature, T stg | -65 | 150 | °C |
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 |
Thermal Information
| bq51050B, bq51051B, bq51052B | bq51050B, bq51051B, bq51052B | ||
|---|---|---|---|
| THERMAL METRIC (1) | YFP (DSGBA) | RHL (VQFN) | |
| 28 PINS | 20 PINS | ||
| R θ JA | Junction-to-ambient thermal resistance | 58.9 | 37.7 |
| R θ JC(top) | Junction-to-case (top) thermal resistance | 0.2 | 35.5 |
| R θ JB | Junction-to-board thermal resistance | 9.1 | 13.6 |
| ψ JT | Junction-to-top characterization parameter | 1.4 | 0.5 |
| ψ JB | Junction-to-board characterization parameter | 8.9 | 13.5 |
Typical Application
Related Variants
The following components are covered by the same datasheet.
| Part Number | Manufacturer | Package |
|---|---|---|
| BQ51050BRHLR | Texas Instruments | — |
| BQ51050BRHLR.A | Texas Instruments | — |
| BQ51050BRHLT | Texas Instruments | VQFN (20) |
| BQ51050BRHLT.A | Texas Instruments | — |
| BQ51050BYFPR | Texas Instruments | — |
| BQ51050BYFPR.A | Texas Instruments | — |
| BQ51050BYFPR.B | Texas Instruments | — |
| BQ51050BYFPT | Texas Instruments | — |
| BQ51050BYFPT.A | Texas Instruments | — |
| BQ51050BYFPT.B | Texas Instruments | — |
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