RT9519A 查看數據表（PDF） - Richtek Technology

零件编号

产品描述 (功能)

比赛名单

RT9519A

Linear Single Cell Li-lon Battery Charger with Auto Power Path Management

Richtek Technology 

RT9519A

Parameter

Symbol

Test Conditions

Min

DPM Regulation Voltage

VIN to VSYS MOSFET Ron

BAT to VSYS MOSFET Ron

Re-Charge Threshold

VDPM

ISETL = H

4.3

RDS(ON) IVIN = 1000mA

--

RDS(ON) VBAT = 4.2V, ISYS = 1A

--

ΔVREGCHG

Battery Regulation − Recharge

level

60

Current Regulation

ISETA Set Voltage (Fast Charge

Phase)

VISE TA

VBAT = 4V, RISETA = 1kΩ

--

Charge Current Setting Range

Charge Current Accuracy1

Charge Current Accuracy2

ICHG

ICHG1

ICHG2

100

VBAT = 4V, RISETA = 1kΩ

ISET = H

570

VBAT = 3.8V, RISETA = 1kΩ

ISET = L

285

ISETL = L (1.5A Mode)

1.2

VIN Current Limit

ISETL = H, ISETU = H

IVIN

(500mA mode)

450

Pre-charge

ISETL = H, ISETU = L

(100mA Mode)

90

BAT Pre-Charge Threshold

VPRECH BAT Falling

2.7

BAT Pre-Charge Threshold Hysteresis ΔVPRECH

--

Pre-Charge Current

ICHG_PRE VBAT = 2V

5

Charge Termination Detection

Termination Current Ratio to Fast

ISETL = H, ISETU = H

Charge (Except USB 100 Mode)

ITE RM

ISETL = L, ISETU = X

5

Termination Current Ratio to Fast

Charge (USB100 Mode)

ITE RM2

ISETL = H, ISETU = L

--

Login Input/Output

Typ

4.4

0.2

0.05

Max

4.5

0.35

0.1

Unit

V

Ω

Ω

100 140 mV

2

-- V

-- 1200 mA

600 630 mA

300 315 mA

1.5 1.8 A

475 500 mA

95 100 mA

2.8 2.9 V

200 -- mV

10 15 %

10 15 %

3.3 -- %

CHG Pull Down Voltage

PGOOD Pull Down Voltage

EN, ISETL, USUS, Logic-High

ISETU, VSET, ISET

Threshold Voltage Logic-Low

Protection

Thermal Regulation

Thermal Shutdown Temperature

Thermal Shutdown Hysteresis

Over Voltage Protection

VCHG

VPGOOD

VIH

VIL

ICHG = 5mA

IPGOOD = 5mA

TREG

TSD

ΔTSD

VOVP

VIN Rising

-- 200 -- mV

-- 200 -- mV

1.5 --

--

V

--

-- 0.4

-- 125 -- °C

-- 155 -- °C

-- 20 -- °C

6.25 6.5 6.75 V

Over Voltage Protection Hysteresis ΔVOVP

VIN = 7V to 5V, VOVP − ΔVOVP -- 100 -- mV

Output Short Circuit Detection

Threshold

Time

Pre-Charge Fault Time

Fast charge Fault Time

DS9519A-02 April 2011

VSHORT

VBAT − VSYS

-- 300 -- mV

tPCHG

tFCHG

CTIMER = 1μF (1/8 x tFCHG)

CTIMER = 1μF

1440 1800 2160 s

11520 14400 17280 s

To be continued

www.richtek.com

5

Share Link: