ADM8845(RevD) 查看數據表（PDF） - Analog Devices

零件编号

产品描述 (功能)

生产厂家

ADM8845
(Rev.:RevD)

Charge Pump Driver for LCD White LED Backlights

Analog Devices 

ADM8845

ABSOLUTE MAXIMUM RATINGS

TA = 25°C, unless otherwise noted.

Table 2.

Parameter

Supply Voltage, VCC

ISET

CTRL1, CTRL2

VOUT Shorted1

Feedback Pins FB1 to FB6

Operating Temperature Range

Six LEDs Enabled with 30 mA/LED2

Six LEDs Enabled with 20 mA/LED2

VOUT3

Storage Temperature Range

Power Dissipation

Electrostatic Discharge (ESD) Class

Rating

−0.3 V to +6.0 V

−0.3 V to +2.0 V

−0.3 V to +6.0 V

Indefinite

−0.3 V to +6.0 V

−40°C to +65°C

−40°C to +85°C

180 mA

−65°C to +125°C

2 mW

1

1 Short through LED.

2 LED current should be derated above TA > 65°C, refer to Figure 21.

3 Based on long-term current density limitations.

Data Sheet

Stresses at or above those listed under Absolute Maximum

Ratings may cause permanent damage to the product. This is a

stress rating only; functional operation of the product at these

or any other conditions above those indicated in the operational

section of this specification is not implied. Operation beyond

the maximum operating conditions for extended periods may

affect product reliability.

THERMAL RESISTANCE

Thermal resistance values specified in Table 3 are simulated

based on JEDEC specifications, unless specified otherwise, and

must be used in compliance with JESD51-12.

Table 3. Thermal Resistance

Package Type θJA

θJC1 θJB

ΨJT ΨJB Unit

CP-16-222

39.25 7.5 17.4 0.8 12.4 °C/W

1 For θJC, 100 µm thermal interface material is used. Thermal interface material

is assumed to have 3.6 W/mK.

2 Using enhanced heat removal (printed circuit board (PCB), heat sink, and

airflow) techniques improves thermal resistance values.

ESD CAUTION

Rev. D | Page 4 of 18

Share Link: