RT9600 Datasheet, PDF (2/6 Pages) List of Unclassifed Manufacturers – SYNCHRONOUS-RECTIFIED BUCK MOSFET DRIVERS

RT9600
Preliminary
Pin Description
Pin No. Pin Name
1 UGATE
2 BOOT
3 PWM
4 GND
5 LGATE
6 VCC
7 PVCC
8 PHASE
Pin Function
Upper Gate Drive Output. Connect to gate of high-side power N-Channel MOSFET
Floating bootstrap supply pin for upper gate drive.
Input PWM signal for controlling the driver.
Ground
Lower gate drive output. Connect to gate of low-side power N-Channel MOSFET.
+12V Supply Voltage
Upper Gate Drive Supply Bias. Typical +12V
Connect this pin to the source of the high-side MOSFET and the drain of the low-side
MOSFET
Function Block Diagram
V_CC
Control
Logic
Internal
5V
500K
PWM
500K
High Side
Short-CKT
Protection
Typical Application Circuit
PVCC
BOOT
UGATE
Shoot-
through
Protect
V_CC
Phase
LGATE
GND
+12V
+12V
PWM
C₈
1µF
C₉
100µF
SANYO OS-CON 16V
6
7 ^VCC
PVCC
2
BOOT ₁
UGATE
C₁₁
1µF
Q₃
PHB83NO3LT
C₁₃
1µF
PHASE ⁸
L3
1µH
R T96 00
3 _PWM
5
LGATE
GND
Q₄
4
PHB95NO3LT
R₁₀ 2.4K
C₁₅
1000µF
R₁₃ 2.4K
VCORE
C₁₆
1000µF
ISEN2
ISN2
There 2 PCB trace have to parallel and place R near to PWM IC
www.richtek-ic.com.tw
2
DS9600-00 July 2001