RT9541
Preliminary
Absolute Maximum Ratings
z Allowable Battery Voltage
z Input Voltage (V)
-0.3V ~ 7V
VDD-14V to VDD +0.3V
VSS-0.3V to VDD +0.3V
VDD-14V to VDD +0.3V
VSS-0.3V to VDD +0.3V
z Input Voltage (CT)
z Output Voltage (COUT)
z Output Voltage (DOUT)
z Power Dissipation, P @ T = 25°C
D
A
SOT-26
z Package Thermal Resistance
SOT-26, θ
0.25W
250°C/W
JA
z Operating Temperature Range
z Storage Temperature Range
-20°C ~ +85°C
-65°C ~ +150°C
Electrical Characteristics
Parameter
Symbol
Test Conditions
Min
1
Typ
--
Max Units
Operating Input Voltage
Charger Voltage
Voltage defined as VDD-VSS
Voltage defined as VDD-V-
6
V
V
V
DD
--
--
14
V
CHG
Minimum Operating Voltage for 0V
Charging
Voltage defined as VDD-V-
VDD-VSS = 0V
--
--
1
V
Accuracy of Over-charge
Threshold Voltage
Detect rising edge of supply
voltage
-25
0.1
30
--
25
0.2
80
mV
V
∆V
OCHG
Over-charge Threshold Hysteresis
0.15
60
C3 = 0.01µF, VDD = 3.6V ~
4.3V
Output Delay Time of Over-charge
mS
T
OCHG
Accuracy of Over-discharge
Threshold Voltage
Detect falling edge of supply
voltage
-2.5
10
--
15
2.5
20
%
mS
V
∆V
ODISCHG
ODISCHG
Output Delay Time of Over-
discharge
VDD = 3.6V ~ 2.4V
T
Excess Current Threshold Voltage
During Discharge
Detect rising edge of “V-“ pin
voltage
0.15
15
0.17
20
0.19
25
Output Delay of Discharge Excess
Current
VDD = 3.0V
mS
V
Excess Current Threshold Voltage
During Charge
Detect falling edge of “V-“ pin
voltage
-0.19
15
-0.17
20
-0.15
25
Output Delay of Charge Excess
Current
mS
V
Short Detection Voltage During
Discharge
VDD = 3.0V
VDD-1.1 VDD-0.8 VDD-0.5
Output Delay of Discharge Short
Circuit
VDD = 3.0V
--
5
50
75
T
µS
kΩ
SHORT
Reset Resistance for Excess
Current Protection
VDD = 3.6V, V- = 1.0V
25
50
R
SHORT
Supply Current
Standby Current
VDD = 3.9V, V- = 0V
VDD = 2.0V
--
--
2.0
0.1
5.0
0.5
I
I
µA
µA
DD
STANDBY
www.richtek-ic.com.tw
DS9541-05 August 2001
2