BQ35100PWR
The BQ35100PWR is an electronic component from Texas Instruments. View the full BQ35100PWR datasheet below including key specifications, absolute maximum ratings.
Manufacturer
Texas Instruments
Category
Battery Management
Lifecycle
Production (Last Updated: 2 days ago)
Key Specifications
| Parameter | Value |
|---|---|
| Ambient Temperature Range High | 85 °C |
| Case/Package | TSSOP |
| Height | 0 m |
| Lead Free | Lead Free |
| Length | 5 mm |
| Lifecycle Status | Production (Last Updated: 2 days ago) |
| Manufacturer Lifecycle Status | ACTIVE (Last Updated: 2 days ago) |
| Max Operating Temperature | 85 °C |
| Max Supply Voltage | 4.5 V |
| Min Operating Temperature | -40 °C |
| Min Supply Voltage | 2.45 V |
| Number of Cells | 1 |
| Number of Outputs | 1 |
| Number of Pins | 14 |
| Output Current | 250 mA |
| Output Voltage | 2.5 V |
| RoHS | Compliant |
| Schedule B | 8542390000, 8542390000|8542390000, 8542390000|8542390000|8542390000, 8542390000|8542390000|8542390000|8542390000 |
| Thickness | 1 mm |
| Width | 4.4 mm |
Overview
In a SHA-1 one-way hash function, there is no known mathematical method of computing the input given, only the output. The specification of SHA-1, as defined by FIPS 180-4, states that the input consists of 512-bit blocks with a total input length less than 2 64 bits. Inputs that do not conform to integer multiples of 512-bit blocks are padded before any block is input to the hash function. The SHA-1 algorithm outputs the 160-bit digest.
The device generates a SHA-1 input block of 288 bits (total input = 160-bit message + 128-bit key). To complete the 512-bit block size requirement of the SHA-1 function, the device pads the key and message with a 1, followed by 159 0s, followed by the 64 bit value for 288 (000...00100100000), which conforms to the pad requirements specified by FIPS 180-4.
Applications
Figure 12 is a simplified diagram of the main features of the BQ35100 device. Specific implementations detailing the main configuration options are shown later in this section.
Copyright © 2017, Texas Instruments Incorporated
Figure 12. BQ35100 Single-Cell Simplified Implementation
Pin Configuration
Absolute Maximum Ratings
Over-operating free-air temperature range (unless otherwise noted) (1)
| MIN | MAX | UNIT | ||
|---|---|---|---|---|
| V REGIN | Regulator Input Range | -0.3 | 5.5 | V |
| V REG25 | Supply Voltage Range | -0.3 | 2.75 | V |
| V IOD | Open-drain I/O pins (SDA, SCL, VEN) | -0.3 | 5.5 | V |
| V IOD | Open-drain I/O pins (ALERT) | -0.3 | 2.75 | V |
| V BAT | BAT Input Pin | -0.3 | 5.5 | V |
| V I | Input voltage range (SRN, SRP, TS) | -0.3 | V REG25 + 0.3 | V |
| T A | Operating free-air temperature range | -40 | 85 | °C |
| T F | Functional Temperature Range | -40 | 100 | °C |
| T STG | Storage temperature range | -65 | 150 | °C |
| T STG | Lead temperature (soldering, 10 s) | -40 | 100 | °C |
Recommended Operating Conditions
TA =-40°C to 85°C; Typical Values at TA = 25°C CLDO25 = 1.0 μ F, and VREGIN = 3.6 V (unless otherwise noted)
| MIN | NOM | MAX | UNIT | |||
|---|---|---|---|---|---|---|
| V REGIN | Supply Voltage | No operating restrictions | 2.7 | 4.5 | V | |
| V REGIN | No FLASH writes | 2.45 | 2.7 | V | ||
| C REGIN | External input capacitor for internal LDO between REGIN and V SS | Nominal capacitor values specified. Recommend a 10% ceramic X5R type capacitor located close to the device. | 0.1 | μF | ||
| C LDO25 | External output capacitor for internal LDO between V REG25 | Nominal capacitor values specified. Recommend a 10% ceramic X5R type capacitor located close to the device. | 0.47 | 1 | μF | |
| I CC_GELOW (1) | Gas gauge in Disabled mode | GE = Low | 0.05 | μA | ||
| I CC_ACC_AVE (1) | Gas gauge in ACCUMULATOR mode average current | Update every 30 minutes otherwise GE = Low | 0.3 | μA | ||
| I CC_SOH_AVE (1) | State-of-health average current | Update every 8 hours otherwise GE = Low | 0.06 | μA | ||
| I CC_EOS_AVE (1) | End-of-service average current | Update every 8 hours 3- s Load Pulse otherwise GE = Low | 0.35 | μA | ||
| VA1 | Input voltage range (VIN, TS) | V SS - 0.05 | 1 | V | ||
| VA2 | Input voltage range (BAT) | V SS - 0.125 | 5 | V |
Thermal Information
| THERMAL METRIC (1) | BQ35100 TSSOP (PW) | UNIT | |
|---|---|---|---|
| 14 PINS | |||
| R θ JA, High K | Junction-to-ambient thermal resistance | 103.8 | °C/W |
| R θ JC(top) | Junction-to-case(top) thermal resistance | 31.9 | °C/W |
| R θ JB | Junction-to-board thermal resistance | 46.6 | °C/W |
| ψ JT | Junction-to-top characterization parameter | 2.0 | °C/W |
| ψ JB | Junction-to-board characterization parameter | 45.9 | °C/W |
| R θ JC(bottom) | Junction-to-case(bottom) thermal resistance | N/A | °C/W |
Typical Application
The BQ35100 device is a highly configurable device with many options. The major configuration choices comprise the battery chemistry and control methods.
Related Variants
The following components are covered by the same datasheet.
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