PCA2003 Datasheet, PDF (2/21 Pages) NXP Semiconductors – 32 kHz watch circuit with programmable adaptive motor pulse and pulse period

NXP Semiconductors
PCA2003
32 kHz watch circuit with programmable adaptive motor pulse
3. Applications
I Driver circuits for bipolar stepping motors
I High immunity motor drive circuits
4. Ordering information
Table 1. Ordering information
Type number
Package
Name
PCA2003U/10AA
PCA200xU
Description
wire bond die; 8 bonding pads;
1.16 × 0.86 × 0.22 mm^[1]
[1] Packing method: bare die; chip on film frame carrier.
5. Block diagram
Version
PCA200xU
3
OSCIN
4
OSCOUT
V_DD
5
V_SS
1
2
i.c.
Fig 1. Block diagram
OSCILLATOR
÷4
8 kHz
32 Hz
DIVIDER
TIMING ADJUSTMENT,
INHIBITION
8
RESET
RESET
reset
VOLTAGE DETECTOR,
OTP-CONTROLLER
OTP-MEMORY
1 Hz
MOTOR CONTROL WITH
ADAPTIVE PULSE MODULATION
PCA2003
STEP
DETECTION
6
MOT1
7
MOT2
001aai168
PCA2003_1
Product data sheet
Rev. 01 — 15 December 2008
© NXP B.V. 2008. All rights reserved.
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