AM5890S Datasheet – 5 Ch, BTL Driver IC for DVD Player
By Hamza Khan
Overview
The AM5890S is a five-channel BTL driver IC for driving the motors and actuators such as those used in the DVD players and consists of two independent precision voltage regulators with adjustable range from 1.25V to 4 V. In addition, an under-voltage detection circuit is built to do Resetting Function. Also, Package is Pb-free for environmental protection.
| Part Number | AM5890S |
| Function | 5 channel BTL driver IC for DVD Player |
| Package | HSOP 28 Pin Type |
| Manufacturer | AMtek |
| Datasheet | Download PDF  |
AM5890S Features
- Two channels are voltage-type BTL drivers for actuators of tracking and focus. Two channels are voltage-type BTL drivers for sled and spindle motors. It also built-in one-channel bi-direction DC motor driver for the tray.
- Wide dynamic range [9.0V (typ.) when Vcc1= Vcc2= 12V, at RL= 20Ω load].
- Separating the power of Vcc1 and Vcc2 is to improve power efficiency by a low supply voltage for tracking, focus, and spindle.
- Level shift circuit built-in.
- Thermal shutdown circuit built-in.
- Mute mode is built-in.
- Dual actuator drivers: A general-purpose input OP provides differential input for signal addition. The output structure is two-power OPAMPS in a bridge configuration.
- Sled motor driver: A general-purpose input OP provides differential input for signal addition. The output structure is one power OPAMP in a bridge configuration.
- Spindle driver: Single input linear BTL driver. The output structure is two power OPAMPS in a bridge configuration.
- Tray-in-out driver: The DC motor driver supports forward/reverse control for the tray motor.
- 2 Built-in regulator controllers: Adjustable range 1.25V ~ 4V
- Under voltage detection
AM5890S Absolute maximum ratings (Ta=25°C)
| Parameter | Symbol | Limits | Unit |
|---|---|---|---|
| Supply voltage | Vcc1 Vcc2 VccD | 13.5 | V |
| Power dissipation | Pd | *1.7 | W |
| Operate Temp range | Topr | -35 ~ +85 | ℃ |
| Storage Temp range | Tstg | **-55 ~ +150 | ℃ |
- When mounted on a 70mm×70mm×1.6mm glass epoxy board.
- Reduced by 13.6mW for each increase in Ta of 1℃ over 25℃.
- Should not exceed Pd or ASO and Tj=150°C values
AM5890S Pinout
Pin Definitions
| PIN No | Pin Name | Pin Description |
|---|---|---|
| 1 | VINFC | Input for focus driver |
| 2 | TRB_1 | Regulator voltage output, connect to the external transistor collector |
| 3 | REGO2 | Regulator voltage output, connect to external transistor collector |
| 4 | VINSL+ | Input for the sled driver |
| 5 | REGO1 | The speed control input of tray driver |
| 6 | FWD | Tray driver forward input |
| 7 | REV | Tray driver reverse input |
| 8 | Vcc1 | Vcc for pre-drive block and power block of sled and tray |
| 9 | VOTR- | Tray driver output (-) |
| 10 | VOTR+ | Tray driver output (+) |
| 11 | VOSL+ | Sled driver output (+) |
| 12 | VOSL- | Sled driver output (-) |
| 13 | VOFC- | Focus driver output (-) |
| 14 | VOFC+ | Focus driver output (+) |
| 15 | VOTK+ | Tracking driver output (+) |
| 16 | VOTK- | Tracking driver output (-) |
| 17 | VOLD+ | Spindle driver output (+) |
| 18 | VOLD- | Spindle driver output (-) |
| 19 | Vcc2 | Vcc for power block of the spindle, tracking, and focus |
| 20 | VCCD | Inpu for voltage detection |
| 21 | VCTL | Connect to the external transistor base |
| 22 | GND | Ground |
| 23 | VINLD | Input for spindle driver |
| 24 | RSET | Output for voltage detection |
| 25 | TRB_2 | Connect to external transistor base |
| 26 | VINTK | Input for tracking driver |
| 27 | BIAS | Input for reference voltage |
| 28 | MUTE | Input for mute control |
Applications
- BTL driver for CD, CD-ROM, and DVD
AM5890S Datasheet
Download the AM5890S IC Datasheet from the link given below.
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