RT9750
4
DS9750-00 March 2017www.richtek.com
©
Copyright 2017 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Functional Block Diagram
VDDA
VREF
Power
Select
Internal Charge Pump
with CC and CV
Regulation
(ICR, OVR, BVR,
BCR)
VBUS
VOUT
Fast
Discharge
Digital Core
EN
INT
SCL
SDA
BATP
BATN
VREF
VBUS
VOUT
VBUS
IBUS
VOUT
10 Channel 12-bit ADC
VDR_ADC BAT_ADC
VBUS_ADC
IBUS_ADC
TDIE_ADC
VOUT_ADC
TSBAT
TDIE
TSBAT_ADC
VBUS_OVP
TBAT_OTP
VDR_ALM
TBUS_OTP
Hardware
Protection
VDR_OVP
RE_OCP
TJ_OTP
IOC_OCP
BATP
BATN
VOUTIBUS
Software
Protection
+
-
+
-
+
-
GND
TSVBUS
TSVBUS_ADC
RT9750
5
DS9750-00 March 2017 www.richtek.com
©
Copyright 2017 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Absolute Maximum Ratings (Note 1)
Supply Pin Voltage, VBUS -------------------------------------------------------------------------------------------- 0.3V to 22V
Supply Pin Voltage, VOUT -------------------------------------------------------------------------------------------- 0.3V to 22V
Other Pin Voltage -------------------------------------------------------------------------------------------------------- 0.3V to 6V
Power Dissipation, P
D
@ T
A
= 25°C
WL-CSP-42B 2.75x3.05 (BSC) --------------------------------------------------------------------------------------- 3.54W
Package Thermal Resistance (Note 2)
WL-CSP-42B 2.75x3.05 (BSC), θ
JA
--------------------------------------------------------------------------------- 28.2°C/W
Junction Temperature --------------------------------------------------------------------------------------------------- 150°C
Lead Temperature (Soldering, 10 sec.) ----------------------------------------------------------------------------- 260°C
Storage Temperature Range ------------------------------------------------------------------------------------------- 65°C to 150°C
ESD Susceptibility (Note 3)
HBM (Human Body Model) -------------------------------------------------------------------------------------------- 2kV
Recommended Operating Conditions (Note 4)
Supply Input Voltage Range, VBUS --------------------------------------------------------------------------------- 3.0V to 6V
Supply Input Voltage Range, VOUT --------------------------------------------------------------------------------- 3.0V to 6V
Analog Sense Voltage Range, BATP, BATN ----------------------------------------------------------------------- 0V to 5V
Temperature Sense Voltage Range, TSVBUS, TSBAT ---------------------------------------------------------- 0V to 3V
Output Sink Current, INT ----------------------------------------------------------------------------------------------- 1mA
Junction Temperature Range ------------------------------------------------------------------------------------------
40°C to 125°C
Ambient Temperature Range ------------------------------------------------------------------------------------------
40°C to 85°C
Electrical Characteristics
(T
A
= 25°C, unless otherwise specified)
Parameter Symbol Test Conditions Min Typ Max Unit
Input Power Source
VDDA UVLO Threshold
V
DDA_VBUS_UVLO
V
DDA
rising, V
BUS
> V
OUT
,
V
DDA
= V
BUS
2.7 2.8 2.9 V
V
DDA_VOUT_UVLO
V
DDA
rising, V
BUS
< V
OUT
,
V
DDA
= V
OUT
VDDA UVLO Hysteresis
V
DDA_VBUS_HYS
V
DDA
falling, V
BUS
> V
OUT
,
V
DDA
= V
BUS
50 150 250 mV
V
DDA_VOUT_HYS
V
DDA
falling, V
BUS
< V
OUT
,
V
DDA
= V
OUT
VBUS Quiescent
Current
I
Q_VBUS
V
BUS
= 4.2V > V
OUT
, charge mode,
LDSW enable
3 4 6 mA
VOUT Quiescent
Current
I
Q_VOUT
V
OUT
= 4.2V > V
BUS
, battery mode,
ADC enable
2 3 5 mA
VOUT Leakage Current I
LEAK_VOUT
V
OUT
= 4.2V > V
BUS
, EN disable 0.5 1 1.5 A
VBAT Insert V
BAT_INSERT
V
BAT
= BATP-BATN 1.9 2 2.1 V
RT9750
6
DS9750-00 March 2017www.richtek.com
©
Copyright 2017 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Parameter Symbol Test Conditions Min Typ Max Unit
Load Switch On-Resistance and Regulation
Load Switch
On-Resistance
R
ON_LDSW
-- 8 10 m
IBUS REG Threshold
Range
I
BUS_REG
I
2
C programmable 0.4 -- 6.35 A
IBUS REG Threshold
Step
7-bit DAC 25 50 75 mA
VOUT REG Threshold
Range
V
OUT_REG
I
2
C programmable 4.2 -- 5 V
VOUT REG Threshold
Step
7-bit DAC 5 10 15 mV
VBAT REG Threshold
Range
V
BAT_REG
I
2
C programmable 4.2 -- 5 V
VBAT REG Threshold
Step
7-bit DAC 5 10 15 mV
Hardware Protection
VBUS OVP Threshold
Range
V
BUS_OVP
I
2
C programmable 4.2 -- 6.5 V
VBUS OVP Threshold
Step
7-bit DAC 12.5 25 37.5 mV
Drop-Out OVP
Threshold
V
DROP_OVP
I
2
C programmable 0 -- 1000 mV
Drop-Out OVP Step 7-bit DAC 5 10 15 mV
Reverse OCP
Threshold
I
RE_OCP
Default, load switch R
ON
= 10m 0.5 1.5 2.5 A
Junction OTP Threshold T
JC_OTP
1-value 115 125 140 °C
Input OCP Threshold I
OC_OCP
I
2
C programmable 0 -- 6.5 A
Input OCP Step 4-bit DAC 250 500 750 mA
Software Protection
Drop-Out ALM
Threshold
V
DROP_ALM
I
2
C programmable 0 -- 1000 mV
Drop-Out ALM Step 7-bit DAC 5 10 15 mV
TSVBUS OTP
Threshold
V
TSVBUS_OTP
I
2
C programmable 0 -- 2.4 V
TSVBUS OTP Step 7-bit DAC 10 20 30 mV
TSBAT OTP Threshold
V
TSBAT_OTP
I
2
C programmable 0 -- 2.4 V
TSBAT OTP Step 7-bit DAC 10 20 30 mV
ADC Specification
ADC Sample Rate f
SAMPLE_ADC
(Note 5) -- 2.25 -- MHz
ADC Data Rate f
DATA_ADC
(Note 5), 16 averages -- 10 -- kHz

RT9750WSC

Mfr. #:
Manufacturer:
Description:
IC BATT CHARGER 6A WL-CSP-42B
Lifecycle:
New from this manufacturer.
Delivery:
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