Features
Battery Cell Controller, Advanced, 6 Channels, TPL, LQFP48.
Package
HLQFP48 LQFP64, plastic, low profile quad flat package; 64 terminals; 0.5 mm pitch; 10 mm x 10 mm x 1.4 mm body.
Features
32 kHz watch circuit with programmable adaptive motor pulse and pulse period
Buy Options
PCA2003U/10AC/1,00
Active
12NC: 935289561005
Details
Order
PCA2003U/10AC/1Z
Active
12NC: 935289561012
Details
Order
PCA2003U/10AA/1,00
No Longer Manufactured
12NC: 935279724005
Details
Order
Operating Features
| Parameter | Value |
|---|---|
Failures in time | 5 |
Mean time between failures | 200000000 |
Environmental
| Part/12NC | PbFree | EU RoHS | Halogen Free | RHF Indicator | REACH SVHC | Weight (mg) |
|---|---|---|---|---|---|---|
PCA2003U/10AA/1,00(935279724005) | No | No | - | REACH SVHC | - | |
PCA2003U/10AC/1,00(935289561005) | Yes | Yes Certificate Of Analysis (CoA) | Yes |  | REACH SVHC | 0.50328 |
PCA2003U/10AC/1Z(935289561012) | Yes | Yes Certificate Of Analysis (CoA) | Yes | | REACH SVHC | 0.50328 |
Quality
| Part/12NC | Safe Assure Functional Safety | Moisture Sensitivity Level (MSL) | Peak Package Body Temperature (PPT) (C°) | FIT | MTBF | ||
|---|---|---|---|---|---|---|---|
| Lead Free Soldering | Lead Soldering | Lead Free Soldering | |||||
PCA2003U/10AA/1,00 (935279724005) | - | - | - | - | 5 | 2.0E8 | |
PCA2003U/10AC/1,00 (935289561005) | No | - | - | - | 5 | 2.0E8 | |
PCA2003U/10AC/1Z (935289561012) | No | 1 | 240 | 260 | 5 | 2.0E8 | |
Shipping
| Part/12NC | Harmonized Tariff (US)Disclaimer |
|---|---|
PCA2003U/10AA/1,00 (935279724005) | 854239 |
PCA2003U/10AC/1,00 (935289561005) | 854239 |
PCA2003U/10AC/1Z (935289561012) | 854239 |
Discontinued and Replacement Part Data
| Part/12NC | Discontinuance Notice | Last Time Buy Date | Last Time Delivery Date | Replacement |
|---|---|---|---|---|
PCA2003U/10AA/1,00 (935279724005) | - | 1998-01-30 | 1998-12-31 | PCA2003U/10AC/1,00 (935289561005) |
More about PCA2003U
The PCA2003 is a CMOS integrated circuit for battery operated wrist watches with a 32 kHz quartz crystal as timing element and a bipolar 1 Hz stepping motor. The quartz crystal oscillator and the frequency divider are optimized for minimum power consumption. A timing accuracy of 1 ppm is achieved with a programmable, digital frequency adjustment.
To obtain the minimum overall power consumption for the watch, an automatic motor pulse adaptation function is provided. The circuit supplies only the minimum drive current, which is necessary to ensure a correct motor step. Changing the drive current of the motor is achieved by chopping the motor pulse with a variable duty cycle. The pulse period and the range of the variable duty cycle can be programmed to suit different types of motors. The automatic pulse adaptation scheme is based on a safe dynamic detection of successful motor steps.
A pad RESET is provided (used for stopping the motor) for accurate time setting and for accelerated testing of the watch.